| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/api/api.h" |
| |
| #include <algorithm> // For min |
| #include <cmath> // For isnan. |
| #include <limits> |
| #include <sstream> |
| #include <string> |
| #include <utility> // For move |
| #include <vector> |
| |
| #include "include/v8-callbacks.h" |
| #include "include/v8-cppgc.h" |
| #include "include/v8-date.h" |
| #include "include/v8-extension.h" |
| #include "include/v8-fast-api-calls.h" |
| #include "include/v8-function.h" |
| #include "include/v8-json.h" |
| #include "include/v8-locker.h" |
| #include "include/v8-primitive-object.h" |
| #include "include/v8-profiler.h" |
| #include "include/v8-unwinder-state.h" |
| #include "include/v8-util.h" |
| #include "include/v8-wasm.h" |
| #include "src/api/api-inl.h" |
| #include "src/api/api-natives.h" |
| #include "src/base/functional.h" |
| #include "src/base/logging.h" |
| #include "src/base/platform/platform.h" |
| #include "src/base/platform/time.h" |
| #include "src/base/safe_conversions.h" |
| #include "src/base/utils/random-number-generator.h" |
| #include "src/baseline/baseline-batch-compiler.h" |
| #include "src/builtins/accessors.h" |
| #include "src/builtins/builtins-utils.h" |
| #include "src/codegen/compiler.h" |
| #include "src/codegen/cpu-features.h" |
| #include "src/codegen/script-details.h" |
| #include "src/common/assert-scope.h" |
| #include "src/common/external-pointer.h" |
| #include "src/common/globals.h" |
| #include "src/compiler-dispatcher/lazy-compile-dispatcher.h" |
| #include "src/date/date.h" |
| #include "src/debug/liveedit.h" |
| #include "src/deoptimizer/deoptimizer.h" |
| #include "src/diagnostics/gdb-jit.h" |
| #include "src/execution/execution.h" |
| #include "src/execution/frames-inl.h" |
| #include "src/execution/isolate-inl.h" |
| #include "src/execution/messages.h" |
| #include "src/execution/microtask-queue.h" |
| #include "src/execution/runtime-profiler.h" |
| #include "src/execution/simulator.h" |
| #include "src/execution/v8threads.h" |
| #include "src/execution/vm-state-inl.h" |
| #include "src/handles/global-handles.h" |
| #include "src/handles/persistent-handles.h" |
| #include "src/heap/embedder-tracing.h" |
| #include "src/heap/heap-inl.h" |
| #include "src/init/bootstrapper.h" |
| #include "src/init/icu_util.h" |
| #include "src/init/startup-data-util.h" |
| #include "src/init/v8.h" |
| #include "src/init/vm-cage.h" |
| #include "src/json/json-parser.h" |
| #include "src/json/json-stringifier.h" |
| #include "src/logging/counters-scopes.h" |
| #include "src/logging/metrics.h" |
| #include "src/logging/runtime-call-stats-scope.h" |
| #include "src/logging/tracing-flags.h" |
| #include "src/numbers/conversions-inl.h" |
| #include "src/objects/api-callbacks.h" |
| #include "src/objects/contexts.h" |
| #include "src/objects/embedder-data-array-inl.h" |
| #include "src/objects/embedder-data-slot-inl.h" |
| #include "src/objects/hash-table-inl.h" |
| #include "src/objects/heap-object.h" |
| #include "src/objects/js-array-buffer-inl.h" |
| #include "src/objects/js-array-inl.h" |
| #include "src/objects/js-collection-inl.h" |
| #include "src/objects/js-promise-inl.h" |
| #include "src/objects/js-regexp-inl.h" |
| #include "src/objects/js-weak-refs-inl.h" |
| #include "src/objects/module-inl.h" |
| #include "src/objects/objects-inl.h" |
| #include "src/objects/oddball.h" |
| #include "src/objects/ordered-hash-table-inl.h" |
| #include "src/objects/property-descriptor.h" |
| #include "src/objects/property-details.h" |
| #include "src/objects/property.h" |
| #include "src/objects/prototype.h" |
| #include "src/objects/shared-function-info.h" |
| #include "src/objects/slots.h" |
| #include "src/objects/smi.h" |
| #include "src/objects/stack-frame-info-inl.h" |
| #include "src/objects/synthetic-module-inl.h" |
| #include "src/objects/templates.h" |
| #include "src/objects/value-serializer.h" |
| #include "src/parsing/parse-info.h" |
| #include "src/parsing/parser.h" |
| #include "src/parsing/pending-compilation-error-handler.h" |
| #include "src/parsing/scanner-character-streams.h" |
| #include "src/profiler/cpu-profiler.h" |
| #include "src/profiler/heap-profiler.h" |
| #include "src/profiler/heap-snapshot-generator-inl.h" |
| #include "src/profiler/profile-generator-inl.h" |
| #include "src/profiler/tick-sample.h" |
| #include "src/regexp/regexp-utils.h" |
| #include "src/runtime/runtime.h" |
| #include "src/snapshot/code-serializer.h" |
| #include "src/snapshot/embedded/embedded-data.h" |
| #include "src/snapshot/snapshot.h" |
| #include "src/snapshot/startup-serializer.h" // For SerializedHandleChecker. |
| #include "src/strings/char-predicates-inl.h" |
| #include "src/strings/string-hasher.h" |
| #include "src/strings/unicode-inl.h" |
| #include "src/tracing/trace-event.h" |
| #include "src/utils/detachable-vector.h" |
| #include "src/utils/version.h" |
| |
| #if V8_ENABLE_WEBASSEMBLY |
| #include "src/trap-handler/trap-handler.h" |
| #include "src/wasm/streaming-decoder.h" |
| #include "src/wasm/value-type.h" |
| #include "src/wasm/wasm-engine.h" |
| #include "src/wasm/wasm-js.h" |
| #include "src/wasm/wasm-objects-inl.h" |
| #include "src/wasm/wasm-result.h" |
| #include "src/wasm/wasm-serialization.h" |
| #endif // V8_ENABLE_WEBASSEMBLY |
| |
| #if V8_OS_LINUX || V8_OS_MACOSX || V8_OS_FREEBSD |
| #include <signal.h> |
| #include "include/v8-wasm-trap-handler-posix.h" |
| #include "src/trap-handler/handler-inside-posix.h" |
| #endif |
| |
| #if V8_OS_WIN |
| #include <windows.h> |
| |
| // This has to come after windows.h. |
| #include <versionhelpers.h> |
| |
| #include "include/v8-wasm-trap-handler-win.h" |
| #include "src/trap-handler/handler-inside-win.h" |
| #if defined(V8_OS_WIN64) |
| #include "src/base/platform/wrappers.h" |
| #include "src/diagnostics/unwinding-info-win64.h" |
| #endif // V8_OS_WIN64 |
| #if defined(V8_ENABLE_SYSTEM_INSTRUMENTATION) |
| #include "src/diagnostics/system-jit-win.h" |
| #endif |
| #endif // V8_OS_WIN |
| |
| // Has to be the last include (doesn't have include guards): |
| #include "src/api/api-macros.h" |
| |
| #define TRACE_BS(...) \ |
| do { \ |
| if (i::FLAG_trace_backing_store) PrintF(__VA_ARGS__); \ |
| } while (false) |
| |
| namespace v8 { |
| |
| static ScriptOrigin GetScriptOriginForScript(i::Isolate* isolate, |
| i::Handle<i::Script> script) { |
| i::Handle<i::Object> scriptName(script->GetNameOrSourceURL(), isolate); |
| i::Handle<i::Object> source_map_url(script->source_mapping_url(), isolate); |
| i::Handle<i::FixedArray> host_defined_options(script->host_defined_options(), |
| isolate); |
| ScriptOriginOptions options(script->origin_options()); |
| bool is_wasm = false; |
| #if V8_ENABLE_WEBASSEMBLY |
| is_wasm = script->type() == i::Script::TYPE_WASM; |
| #endif // V8_ENABLE_WEBASSEMBLY |
| v8::ScriptOrigin origin( |
| reinterpret_cast<v8::Isolate*>(isolate), Utils::ToLocal(scriptName), |
| script->line_offset(), script->column_offset(), |
| options.IsSharedCrossOrigin(), script->id(), |
| Utils::ToLocal(source_map_url), options.IsOpaque(), is_wasm, |
| options.IsModule(), Utils::PrimitiveArrayToLocal(host_defined_options)); |
| return origin; |
| } |
| |
| ScriptOrigin::ScriptOrigin( |
| Local<Value> resource_name, Local<Integer> line_offset, |
| Local<Integer> column_offset, Local<Boolean> is_shared_cross_origin, |
| Local<Integer> script_id, Local<Value> source_map_url, |
| Local<Boolean> is_opaque, Local<Boolean> is_wasm, Local<Boolean> is_module, |
| Local<PrimitiveArray> host_defined_options) |
| : ScriptOrigin( |
| Isolate::GetCurrent(), resource_name, |
| line_offset.IsEmpty() ? 0 : static_cast<int>(line_offset->Value()), |
| column_offset.IsEmpty() ? 0 |
| : static_cast<int>(column_offset->Value()), |
| !is_shared_cross_origin.IsEmpty() && is_shared_cross_origin->IsTrue(), |
| static_cast<int>(script_id.IsEmpty() ? -1 : script_id->Value()), |
| source_map_url, !is_opaque.IsEmpty() && is_opaque->IsTrue(), |
| !is_wasm.IsEmpty() && is_wasm->IsTrue(), |
| !is_module.IsEmpty() && is_module->IsTrue(), host_defined_options) {} |
| |
| ScriptOrigin::ScriptOrigin(Local<Value> resource_name, int line_offset, |
| int column_offset, bool is_shared_cross_origin, |
| int script_id, Local<Value> source_map_url, |
| bool is_opaque, bool is_wasm, bool is_module, |
| Local<PrimitiveArray> host_defined_options) |
| : isolate_(Isolate::GetCurrent()), |
| resource_name_(resource_name), |
| resource_line_offset_(line_offset), |
| resource_column_offset_(column_offset), |
| options_(is_shared_cross_origin, is_opaque, is_wasm, is_module), |
| script_id_(script_id), |
| source_map_url_(source_map_url), |
| host_defined_options_(host_defined_options) {} |
| |
| Local<Integer> ScriptOrigin::ResourceLineOffset() const { |
| return v8::Integer::New(isolate_, resource_line_offset_); |
| } |
| |
| Local<Integer> ScriptOrigin::ResourceColumnOffset() const { |
| return v8::Integer::New(isolate_, resource_column_offset_); |
| } |
| |
| Local<Integer> ScriptOrigin::ScriptID() const { |
| return v8::Integer::New(isolate_, script_id_); |
| } |
| |
| // --- E x c e p t i o n B e h a v i o r --- |
| |
| void i::FatalProcessOutOfMemory(i::Isolate* isolate, const char* location) { |
| i::V8::FatalProcessOutOfMemory(isolate, location, false); |
| } |
| |
| // When V8 cannot allocate memory FatalProcessOutOfMemory is called. The default |
| // OOM error handler is called and execution is stopped. |
| void i::V8::FatalProcessOutOfMemory(i::Isolate* isolate, const char* location, |
| bool is_heap_oom) { |
| char last_few_messages[Heap::kTraceRingBufferSize + 1]; |
| char js_stacktrace[Heap::kStacktraceBufferSize + 1]; |
| i::HeapStats heap_stats; |
| |
| if (isolate == nullptr) { |
| isolate = Isolate::TryGetCurrent(); |
| } |
| |
| if (isolate == nullptr) { |
| // If the Isolate is not available for the current thread we cannot retrieve |
| // memory information from the Isolate. Write easy-to-recognize values on |
| // the stack. |
| memset(last_few_messages, 0x0BADC0DE, Heap::kTraceRingBufferSize + 1); |
| memset(js_stacktrace, 0x0BADC0DE, Heap::kStacktraceBufferSize + 1); |
| memset(&heap_stats, 0xBADC0DE, sizeof(heap_stats)); |
| // Note that the embedder's oom handler is also not available and therefore |
| // won't be called in this case. We just crash. |
| FATAL("Fatal process out of memory: %s", location); |
| UNREACHABLE(); |
| } |
| |
| memset(last_few_messages, 0, Heap::kTraceRingBufferSize + 1); |
| memset(js_stacktrace, 0, Heap::kStacktraceBufferSize + 1); |
| |
| intptr_t start_marker; |
| heap_stats.start_marker = &start_marker; |
| size_t ro_space_size; |
| heap_stats.ro_space_size = &ro_space_size; |
| size_t ro_space_capacity; |
| heap_stats.ro_space_capacity = &ro_space_capacity; |
| size_t new_space_size; |
| heap_stats.new_space_size = &new_space_size; |
| size_t new_space_capacity; |
| heap_stats.new_space_capacity = &new_space_capacity; |
| size_t old_space_size; |
| heap_stats.old_space_size = &old_space_size; |
| size_t old_space_capacity; |
| heap_stats.old_space_capacity = &old_space_capacity; |
| size_t code_space_size; |
| heap_stats.code_space_size = &code_space_size; |
| size_t code_space_capacity; |
| heap_stats.code_space_capacity = &code_space_capacity; |
| size_t map_space_size; |
| heap_stats.map_space_size = &map_space_size; |
| size_t map_space_capacity; |
| heap_stats.map_space_capacity = &map_space_capacity; |
| size_t lo_space_size; |
| heap_stats.lo_space_size = &lo_space_size; |
| size_t code_lo_space_size; |
| heap_stats.code_lo_space_size = &code_lo_space_size; |
| size_t global_handle_count; |
| heap_stats.global_handle_count = &global_handle_count; |
| size_t weak_global_handle_count; |
| heap_stats.weak_global_handle_count = &weak_global_handle_count; |
| size_t pending_global_handle_count; |
| heap_stats.pending_global_handle_count = &pending_global_handle_count; |
| size_t near_death_global_handle_count; |
| heap_stats.near_death_global_handle_count = &near_death_global_handle_count; |
| size_t free_global_handle_count; |
| heap_stats.free_global_handle_count = &free_global_handle_count; |
| size_t memory_allocator_size; |
| heap_stats.memory_allocator_size = &memory_allocator_size; |
| size_t memory_allocator_capacity; |
| heap_stats.memory_allocator_capacity = &memory_allocator_capacity; |
| size_t malloced_memory; |
| heap_stats.malloced_memory = &malloced_memory; |
| size_t malloced_peak_memory; |
| heap_stats.malloced_peak_memory = &malloced_peak_memory; |
| size_t objects_per_type[LAST_TYPE + 1] = {0}; |
| heap_stats.objects_per_type = objects_per_type; |
| size_t size_per_type[LAST_TYPE + 1] = {0}; |
| heap_stats.size_per_type = size_per_type; |
| int os_error; |
| heap_stats.os_error = &os_error; |
| heap_stats.last_few_messages = last_few_messages; |
| heap_stats.js_stacktrace = js_stacktrace; |
| intptr_t end_marker; |
| heap_stats.end_marker = &end_marker; |
| if (isolate->heap()->HasBeenSetUp()) { |
| // BUG(1718): Don't use the take_snapshot since we don't support |
| // HeapObjectIterator here without doing a special GC. |
| isolate->heap()->RecordStats(&heap_stats, false); |
| if (!FLAG_correctness_fuzzer_suppressions) { |
| char* first_newline = strchr(last_few_messages, '\n'); |
| if (first_newline == nullptr || first_newline[1] == '\0') |
| first_newline = last_few_messages; |
| base::OS::PrintError("\n<--- Last few GCs --->\n%s\n", first_newline); |
| base::OS::PrintError("\n<--- JS stacktrace --->\n%s\n", js_stacktrace); |
| } |
| } |
| Utils::ReportOOMFailure(isolate, location, is_heap_oom); |
| // If the fatal error handler returns, we stop execution. |
| FATAL("API fatal error handler returned after process out of memory"); |
| } |
| |
| void Utils::ReportApiFailure(const char* location, const char* message) { |
| i::Isolate* isolate = i::Isolate::TryGetCurrent(); |
| FatalErrorCallback callback = nullptr; |
| if (isolate != nullptr) { |
| callback = isolate->exception_behavior(); |
| } |
| if (callback == nullptr) { |
| base::OS::PrintError("\n#\n# Fatal error in %s\n# %s\n#\n\n", location, |
| message); |
| base::OS::Abort(); |
| } else { |
| callback(location, message); |
| } |
| isolate->SignalFatalError(); |
| } |
| |
| void Utils::ReportOOMFailure(i::Isolate* isolate, const char* location, |
| bool is_heap_oom) { |
| OOMErrorCallback oom_callback = isolate->oom_behavior(); |
| if (oom_callback == nullptr) { |
| // TODO(wfh): Remove this fallback once Blink is setting OOM handler. See |
| // crbug.com/614440. |
| FatalErrorCallback fatal_callback = isolate->exception_behavior(); |
| if (fatal_callback == nullptr) { |
| base::OS::PrintError("\n#\n# Fatal %s OOM in %s\n#\n\n", |
| is_heap_oom ? "javascript" : "process", location); |
| #ifdef V8_FUZZILLI |
| exit(0); |
| #else |
| base::OS::Abort(); |
| #endif // V8_FUZZILLI |
| } else { |
| fatal_callback(location, |
| is_heap_oom |
| ? "Allocation failed - JavaScript heap out of memory" |
| : "Allocation failed - process out of memory"); |
| } |
| } else { |
| oom_callback(location, is_heap_oom); |
| } |
| isolate->SignalFatalError(); |
| } |
| |
| void V8::SetSnapshotDataBlob(StartupData* snapshot_blob) { |
| i::V8::SetSnapshotBlob(snapshot_blob); |
| } |
| |
| namespace { |
| |
| #ifdef V8_VIRTUAL_MEMORY_CAGE |
| // ArrayBufferAllocator to use when the virtual memory cage is enabled, in which |
| // case all ArrayBuffer backing stores need to be allocated inside the data |
| // cage. Note, the current implementation is extremely inefficient as it uses |
| // the BoundedPageAllocator. In the future, we'll need a proper allocator |
| // implementation. |
| class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { |
| public: |
| ArrayBufferAllocator() { CHECK(page_allocator_); } |
| |
| void* Allocate(size_t length) override { |
| return page_allocator_->AllocatePages(nullptr, RoundUp(length, page_size_), |
| page_size_, |
| PageAllocator::kReadWrite); |
| } |
| |
| void* AllocateUninitialized(size_t length) override { |
| return Allocate(length); |
| } |
| |
| void Free(void* data, size_t length) override { |
| page_allocator_->FreePages(data, RoundUp(length, page_size_)); |
| } |
| |
| private: |
| PageAllocator* page_allocator_ = internal::GetArrayBufferPageAllocator(); |
| const size_t page_size_ = page_allocator_->AllocatePageSize(); |
| }; |
| |
| #else |
| |
| class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { |
| public: |
| void* Allocate(size_t length) override { |
| #if V8_OS_AIX && _LINUX_SOURCE_COMPAT |
| // Work around for GCC bug on AIX |
| // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 |
| void* data = __linux_calloc(length, 1); |
| #else |
| void* data = base::Calloc(length, 1); |
| #endif |
| return data; |
| } |
| |
| void* AllocateUninitialized(size_t length) override { |
| #if V8_OS_AIX && _LINUX_SOURCE_COMPAT |
| // Work around for GCC bug on AIX |
| // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 |
| void* data = __linux_malloc(length); |
| #else |
| void* data = base::Malloc(length); |
| #endif |
| return data; |
| } |
| |
| void Free(void* data, size_t) override { base::Free(data); } |
| |
| void* Reallocate(void* data, size_t old_length, size_t new_length) override { |
| #if V8_OS_AIX && _LINUX_SOURCE_COMPAT |
| // Work around for GCC bug on AIX |
| // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79839 |
| void* new_data = __linux_realloc(data, new_length); |
| #else |
| void* new_data = base::Realloc(data, new_length); |
| #endif |
| if (new_length > old_length) { |
| memset(reinterpret_cast<uint8_t*>(new_data) + old_length, 0, |
| new_length - old_length); |
| } |
| return new_data; |
| } |
| }; |
| #endif // V8_VIRTUAL_MEMORY_CAGE |
| |
| struct SnapshotCreatorData { |
| explicit SnapshotCreatorData(Isolate* isolate) |
| : isolate_(isolate), |
| default_context_(), |
| contexts_(isolate), |
| created_(false) {} |
| |
| static SnapshotCreatorData* cast(void* data) { |
| return reinterpret_cast<SnapshotCreatorData*>(data); |
| } |
| |
| ArrayBufferAllocator allocator_; |
| Isolate* isolate_; |
| Persistent<Context> default_context_; |
| SerializeInternalFieldsCallback default_embedder_fields_serializer_; |
| PersistentValueVector<Context> contexts_; |
| std::vector<SerializeInternalFieldsCallback> embedder_fields_serializers_; |
| bool created_; |
| }; |
| |
| } // namespace |
| |
| SnapshotCreator::SnapshotCreator(Isolate* isolate, |
| const intptr_t* external_references, |
| StartupData* existing_snapshot) { |
| SnapshotCreatorData* data = new SnapshotCreatorData(isolate); |
| i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| internal_isolate->set_array_buffer_allocator(&data->allocator_); |
| internal_isolate->set_api_external_references(external_references); |
| internal_isolate->enable_serializer(); |
| isolate->Enter(); |
| const StartupData* blob = existing_snapshot |
| ? existing_snapshot |
| : i::Snapshot::DefaultSnapshotBlob(); |
| if (blob && blob->raw_size > 0) { |
| internal_isolate->set_snapshot_blob(blob); |
| i::Snapshot::Initialize(internal_isolate); |
| } else { |
| internal_isolate->InitWithoutSnapshot(); |
| } |
| data_ = data; |
| // Disable batch compilation during snapshot creation. |
| internal_isolate->baseline_batch_compiler()->set_enabled(false); |
| } |
| |
| SnapshotCreator::SnapshotCreator(const intptr_t* external_references, |
| StartupData* existing_snapshot) |
| : SnapshotCreator(Isolate::Allocate(), external_references, |
| existing_snapshot) {} |
| |
| SnapshotCreator::~SnapshotCreator() { |
| SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); |
| DCHECK(data->created_); |
| Isolate* isolate = data->isolate_; |
| isolate->Exit(); |
| isolate->Dispose(); |
| delete data; |
| } |
| |
| Isolate* SnapshotCreator::GetIsolate() { |
| return SnapshotCreatorData::cast(data_)->isolate_; |
| } |
| |
| void SnapshotCreator::SetDefaultContext( |
| Local<Context> context, SerializeInternalFieldsCallback callback) { |
| DCHECK(!context.IsEmpty()); |
| SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); |
| DCHECK(!data->created_); |
| DCHECK(data->default_context_.IsEmpty()); |
| Isolate* isolate = data->isolate_; |
| CHECK_EQ(isolate, context->GetIsolate()); |
| data->default_context_.Reset(isolate, context); |
| data->default_embedder_fields_serializer_ = callback; |
| } |
| |
| size_t SnapshotCreator::AddContext(Local<Context> context, |
| SerializeInternalFieldsCallback callback) { |
| DCHECK(!context.IsEmpty()); |
| SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); |
| DCHECK(!data->created_); |
| Isolate* isolate = data->isolate_; |
| CHECK_EQ(isolate, context->GetIsolate()); |
| size_t index = data->contexts_.Size(); |
| data->contexts_.Append(context); |
| data->embedder_fields_serializers_.push_back(callback); |
| return index; |
| } |
| |
| size_t SnapshotCreator::AddData(i::Address object) { |
| DCHECK_NE(object, i::kNullAddress); |
| SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); |
| DCHECK(!data->created_); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(data->isolate_); |
| i::HandleScope scope(isolate); |
| i::Handle<i::Object> obj(i::Object(object), isolate); |
| i::Handle<i::ArrayList> list; |
| if (!isolate->heap()->serialized_objects().IsArrayList()) { |
| list = i::ArrayList::New(isolate, 1); |
| } else { |
| list = i::Handle<i::ArrayList>( |
| i::ArrayList::cast(isolate->heap()->serialized_objects()), isolate); |
| } |
| size_t index = static_cast<size_t>(list->Length()); |
| list = i::ArrayList::Add(isolate, list, obj); |
| isolate->heap()->SetSerializedObjects(*list); |
| return index; |
| } |
| |
| size_t SnapshotCreator::AddData(Local<Context> context, i::Address object) { |
| DCHECK_NE(object, i::kNullAddress); |
| DCHECK(!SnapshotCreatorData::cast(data_)->created_); |
| i::Handle<i::Context> ctx = Utils::OpenHandle(*context); |
| i::Isolate* isolate = ctx->GetIsolate(); |
| i::HandleScope scope(isolate); |
| i::Handle<i::Object> obj(i::Object(object), isolate); |
| i::Handle<i::ArrayList> list; |
| if (!ctx->serialized_objects().IsArrayList()) { |
| list = i::ArrayList::New(isolate, 1); |
| } else { |
| list = i::Handle<i::ArrayList>( |
| i::ArrayList::cast(ctx->serialized_objects()), isolate); |
| } |
| size_t index = static_cast<size_t>(list->Length()); |
| list = i::ArrayList::Add(isolate, list, obj); |
| ctx->set_serialized_objects(*list); |
| return index; |
| } |
| |
| namespace { |
| void ConvertSerializedObjectsToFixedArray(Local<Context> context) { |
| i::Handle<i::Context> ctx = Utils::OpenHandle(*context); |
| i::Isolate* isolate = ctx->GetIsolate(); |
| if (!ctx->serialized_objects().IsArrayList()) { |
| ctx->set_serialized_objects(i::ReadOnlyRoots(isolate).empty_fixed_array()); |
| } else { |
| i::Handle<i::ArrayList> list(i::ArrayList::cast(ctx->serialized_objects()), |
| isolate); |
| i::Handle<i::FixedArray> elements = i::ArrayList::Elements(isolate, list); |
| ctx->set_serialized_objects(*elements); |
| } |
| } |
| |
| void ConvertSerializedObjectsToFixedArray(i::Isolate* isolate) { |
| if (!isolate->heap()->serialized_objects().IsArrayList()) { |
| isolate->heap()->SetSerializedObjects( |
| i::ReadOnlyRoots(isolate).empty_fixed_array()); |
| } else { |
| i::Handle<i::ArrayList> list( |
| i::ArrayList::cast(isolate->heap()->serialized_objects()), isolate); |
| i::Handle<i::FixedArray> elements = i::ArrayList::Elements(isolate, list); |
| isolate->heap()->SetSerializedObjects(*elements); |
| } |
| } |
| } // anonymous namespace |
| |
| StartupData SnapshotCreator::CreateBlob( |
| SnapshotCreator::FunctionCodeHandling function_code_handling) { |
| SnapshotCreatorData* data = SnapshotCreatorData::cast(data_); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(data->isolate_); |
| DCHECK(!data->created_); |
| DCHECK(!data->default_context_.IsEmpty()); |
| |
| const int num_additional_contexts = static_cast<int>(data->contexts_.Size()); |
| const int num_contexts = num_additional_contexts + 1; // The default context. |
| |
| // Create and store lists of embedder-provided data needed during |
| // serialization. |
| { |
| i::HandleScope scope(isolate); |
| // Convert list of context-independent data to FixedArray. |
| ConvertSerializedObjectsToFixedArray(isolate); |
| |
| // Convert lists of context-dependent data to FixedArray. |
| ConvertSerializedObjectsToFixedArray( |
| data->default_context_.Get(data->isolate_)); |
| for (int i = 0; i < num_additional_contexts; i++) { |
| ConvertSerializedObjectsToFixedArray(data->contexts_.Get(i)); |
| } |
| |
| // We need to store the global proxy size upfront in case we need the |
| // bootstrapper to create a global proxy before we deserialize the context. |
| i::Handle<i::FixedArray> global_proxy_sizes = |
| isolate->factory()->NewFixedArray(num_additional_contexts, |
| i::AllocationType::kOld); |
| for (int i = 0; i < num_additional_contexts; i++) { |
| i::Handle<i::Context> context = |
| v8::Utils::OpenHandle(*data->contexts_.Get(i)); |
| global_proxy_sizes->set(i, |
| i::Smi::FromInt(context->global_proxy().Size())); |
| } |
| isolate->heap()->SetSerializedGlobalProxySizes(*global_proxy_sizes); |
| } |
| |
| // We might rehash strings and re-sort descriptors. Clear the lookup cache. |
| isolate->descriptor_lookup_cache()->Clear(); |
| |
| // If we don't do this then we end up with a stray root pointing at the |
| // context even after we have disposed of the context. |
| isolate->heap()->CollectAllAvailableGarbage( |
| i::GarbageCollectionReason::kSnapshotCreator); |
| { |
| i::HandleScope scope(isolate); |
| isolate->heap()->CompactWeakArrayLists(); |
| } |
| |
| i::Snapshot::ClearReconstructableDataForSerialization( |
| isolate, function_code_handling == FunctionCodeHandling::kClear); |
| |
| i::DisallowGarbageCollection no_gc_from_here_on; |
| |
| // Create a vector with all contexts and clear associated Persistent fields. |
| // Note these contexts may be dead after calling Clear(), but will not be |
| // collected until serialization completes and the DisallowGarbageCollection |
| // scope above goes out of scope. |
| std::vector<i::Context> contexts; |
| contexts.reserve(num_contexts); |
| { |
| i::HandleScope scope(isolate); |
| contexts.push_back( |
| *v8::Utils::OpenHandle(*data->default_context_.Get(data->isolate_))); |
| data->default_context_.Reset(); |
| for (int i = 0; i < num_additional_contexts; i++) { |
| i::Handle<i::Context> context = |
| v8::Utils::OpenHandle(*data->contexts_.Get(i)); |
| contexts.push_back(*context); |
| } |
| data->contexts_.Clear(); |
| } |
| |
| // Check that values referenced by global/eternal handles are accounted for. |
| i::SerializedHandleChecker handle_checker(isolate, &contexts); |
| CHECK(handle_checker.CheckGlobalAndEternalHandles()); |
| |
| // Create a vector with all embedder fields serializers. |
| std::vector<SerializeInternalFieldsCallback> embedder_fields_serializers; |
| embedder_fields_serializers.reserve(num_contexts); |
| embedder_fields_serializers.push_back( |
| data->default_embedder_fields_serializer_); |
| for (int i = 0; i < num_additional_contexts; i++) { |
| embedder_fields_serializers.push_back( |
| data->embedder_fields_serializers_[i]); |
| } |
| |
| data->created_ = true; |
| return i::Snapshot::Create(isolate, &contexts, embedder_fields_serializers, |
| no_gc_from_here_on); |
| } |
| |
| bool StartupData::CanBeRehashed() const { |
| DCHECK(i::Snapshot::VerifyChecksum(this)); |
| return i::Snapshot::ExtractRehashability(this); |
| } |
| |
| bool StartupData::IsValid() const { return i::Snapshot::VersionIsValid(this); } |
| |
| void V8::SetDcheckErrorHandler(DcheckErrorCallback that) { |
| v8::base::SetDcheckFunction(that); |
| } |
| |
| void V8::SetFlagsFromString(const char* str) { |
| SetFlagsFromString(str, strlen(str)); |
| } |
| |
| void V8::SetFlagsFromString(const char* str, size_t length) { |
| i::FlagList::SetFlagsFromString(str, length); |
| i::FlagList::EnforceFlagImplications(); |
| } |
| |
| void V8::SetFlagsFromCommandLine(int* argc, char** argv, bool remove_flags) { |
| using HelpOptions = i::FlagList::HelpOptions; |
| i::FlagList::SetFlagsFromCommandLine(argc, argv, remove_flags, |
| HelpOptions(HelpOptions::kDontExit)); |
| } |
| |
| RegisteredExtension* RegisteredExtension::first_extension_ = nullptr; |
| |
| RegisteredExtension::RegisteredExtension(std::unique_ptr<Extension> extension) |
| : extension_(std::move(extension)) {} |
| |
| // static |
| void RegisteredExtension::Register(std::unique_ptr<Extension> extension) { |
| RegisteredExtension* new_extension = |
| new RegisteredExtension(std::move(extension)); |
| new_extension->next_ = first_extension_; |
| first_extension_ = new_extension; |
| } |
| |
| // static |
| void RegisteredExtension::UnregisterAll() { |
| RegisteredExtension* re = first_extension_; |
| while (re != nullptr) { |
| RegisteredExtension* next = re->next(); |
| delete re; |
| re = next; |
| } |
| first_extension_ = nullptr; |
| } |
| |
| namespace { |
| class ExtensionResource : public String::ExternalOneByteStringResource { |
| public: |
| ExtensionResource() : data_(nullptr), length_(0) {} |
| ExtensionResource(const char* data, size_t length) |
| : data_(data), length_(length) {} |
| const char* data() const override { return data_; } |
| size_t length() const override { return length_; } |
| void Dispose() override {} |
| |
| private: |
| const char* data_; |
| size_t length_; |
| }; |
| } // anonymous namespace |
| |
| void RegisterExtension(std::unique_ptr<Extension> extension) { |
| RegisteredExtension::Register(std::move(extension)); |
| } |
| |
| Extension::Extension(const char* name, const char* source, int dep_count, |
| const char** deps, int source_length) |
| : name_(name), |
| source_length_(source_length >= 0 |
| ? source_length |
| : (source ? static_cast<int>(strlen(source)) : 0)), |
| dep_count_(dep_count), |
| deps_(deps), |
| auto_enable_(false) { |
| source_ = new ExtensionResource(source, source_length_); |
| CHECK(source != nullptr || source_length_ == 0); |
| } |
| |
| void ResourceConstraints::ConfigureDefaultsFromHeapSize( |
| size_t initial_heap_size_in_bytes, size_t maximum_heap_size_in_bytes) { |
| CHECK_LE(initial_heap_size_in_bytes, maximum_heap_size_in_bytes); |
| if (maximum_heap_size_in_bytes == 0) { |
| return; |
| } |
| size_t young_generation, old_generation; |
| i::Heap::GenerationSizesFromHeapSize(maximum_heap_size_in_bytes, |
| &young_generation, &old_generation); |
| set_max_young_generation_size_in_bytes( |
| std::max(young_generation, i::Heap::MinYoungGenerationSize())); |
| set_max_old_generation_size_in_bytes( |
| std::max(old_generation, i::Heap::MinOldGenerationSize())); |
| if (initial_heap_size_in_bytes > 0) { |
| i::Heap::GenerationSizesFromHeapSize(initial_heap_size_in_bytes, |
| &young_generation, &old_generation); |
| // We do not set lower bounds for the initial sizes. |
| set_initial_young_generation_size_in_bytes(young_generation); |
| set_initial_old_generation_size_in_bytes(old_generation); |
| } |
| if (i::kPlatformRequiresCodeRange) { |
| set_code_range_size_in_bytes( |
| std::min(i::kMaximalCodeRangeSize, maximum_heap_size_in_bytes)); |
| } |
| } |
| |
| void ResourceConstraints::ConfigureDefaults(uint64_t physical_memory, |
| uint64_t virtual_memory_limit) { |
| size_t heap_size = i::Heap::HeapSizeFromPhysicalMemory(physical_memory); |
| size_t young_generation, old_generation; |
| i::Heap::GenerationSizesFromHeapSize(heap_size, &young_generation, |
| &old_generation); |
| set_max_young_generation_size_in_bytes(young_generation); |
| set_max_old_generation_size_in_bytes(old_generation); |
| |
| if (virtual_memory_limit > 0 && i::kPlatformRequiresCodeRange) { |
| set_code_range_size_in_bytes( |
| std::min(i::kMaximalCodeRangeSize, |
| static_cast<size_t>(virtual_memory_limit / 8))); |
| } |
| } |
| |
| namespace api_internal { |
| i::Address* GlobalizeTracedReference(i::Isolate* isolate, i::Address* obj, |
| internal::Address* slot, |
| bool has_destructor) { |
| LOG_API(isolate, TracedGlobal, New); |
| #ifdef DEBUG |
| Utils::ApiCheck((slot != nullptr), "v8::GlobalizeTracedReference", |
| "the address slot must be not null"); |
| #endif |
| i::Handle<i::Object> result = |
| isolate->global_handles()->CreateTraced(*obj, slot, has_destructor); |
| #ifdef VERIFY_HEAP |
| if (i::FLAG_verify_heap) { |
| i::Object(*obj).ObjectVerify(isolate); |
| } |
| #endif // VERIFY_HEAP |
| return result.location(); |
| } |
| |
| i::Address* GlobalizeReference(i::Isolate* isolate, i::Address* obj) { |
| LOG_API(isolate, Persistent, New); |
| i::Handle<i::Object> result = isolate->global_handles()->Create(*obj); |
| #ifdef VERIFY_HEAP |
| if (i::FLAG_verify_heap) { |
| i::Object(*obj).ObjectVerify(isolate); |
| } |
| #endif // VERIFY_HEAP |
| return result.location(); |
| } |
| |
| i::Address* CopyGlobalReference(i::Address* from) { |
| i::Handle<i::Object> result = i::GlobalHandles::CopyGlobal(from); |
| return result.location(); |
| } |
| |
| void MoveGlobalReference(internal::Address** from, internal::Address** to) { |
| i::GlobalHandles::MoveGlobal(from, to); |
| } |
| |
| void MakeWeak(i::Address* location, void* parameter, |
| WeakCallbackInfo<void>::Callback weak_callback, |
| WeakCallbackType type) { |
| i::GlobalHandles::MakeWeak(location, parameter, weak_callback, type); |
| } |
| |
| void MakeWeak(i::Address** location_addr) { |
| i::GlobalHandles::MakeWeak(location_addr); |
| } |
| |
| void* ClearWeak(i::Address* location) { |
| return i::GlobalHandles::ClearWeakness(location); |
| } |
| |
| void AnnotateStrongRetainer(i::Address* location, const char* label) { |
| i::GlobalHandles::AnnotateStrongRetainer(location, label); |
| } |
| |
| void DisposeGlobal(i::Address* location) { |
| i::GlobalHandles::Destroy(location); |
| } |
| |
| Value* Eternalize(Isolate* v8_isolate, Value* value) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| i::Object object = *Utils::OpenHandle(value); |
| int index = -1; |
| isolate->eternal_handles()->Create(isolate, object, &index); |
| return reinterpret_cast<Value*>( |
| isolate->eternal_handles()->Get(index).location()); |
| } |
| |
| void MoveTracedGlobalReference(internal::Address** from, |
| internal::Address** to) { |
| i::GlobalHandles::MoveTracedGlobal(from, to); |
| } |
| |
| void CopyTracedGlobalReference(const internal::Address* const* from, |
| internal::Address** to) { |
| i::GlobalHandles::CopyTracedGlobal(from, to); |
| } |
| |
| void DisposeTracedGlobal(internal::Address* location) { |
| i::GlobalHandles::DestroyTraced(location); |
| } |
| |
| void SetFinalizationCallbackTraced(internal::Address* location, void* parameter, |
| WeakCallbackInfo<void>::Callback callback) { |
| i::GlobalHandles::SetFinalizationCallbackForTraced(location, parameter, |
| callback); |
| } |
| |
| void FromJustIsNothing() { |
| Utils::ApiCheck(false, "v8::FromJust", "Maybe value is Nothing."); |
| } |
| |
| void ToLocalEmpty() { |
| Utils::ApiCheck(false, "v8::ToLocalChecked", "Empty MaybeLocal."); |
| } |
| |
| void InternalFieldOutOfBounds(int index) { |
| Utils::ApiCheck(0 <= index && index < kInternalFieldsInWeakCallback, |
| "WeakCallbackInfo::GetInternalField", |
| "Internal field out of bounds."); |
| } |
| |
| } // namespace api_internal |
| |
| // --- H a n d l e s --- |
| |
| HandleScope::HandleScope(Isolate* isolate) { Initialize(isolate); } |
| |
| void HandleScope::Initialize(Isolate* isolate) { |
| i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| // We do not want to check the correct usage of the Locker class all over the |
| // place, so we do it only here: Without a HandleScope, an embedder can do |
| // almost nothing, so it is enough to check in this central place. |
| // We make an exception if the serializer is enabled, which means that the |
| // Isolate is exclusively used to create a snapshot. |
| Utils::ApiCheck( |
| !v8::Locker::IsActive() || |
| internal_isolate->thread_manager()->IsLockedByCurrentThread() || |
| internal_isolate->serializer_enabled(), |
| "HandleScope::HandleScope", |
| "Entering the V8 API without proper locking in place"); |
| i::HandleScopeData* current = internal_isolate->handle_scope_data(); |
| isolate_ = internal_isolate; |
| prev_next_ = current->next; |
| prev_limit_ = current->limit; |
| current->level++; |
| } |
| |
| HandleScope::~HandleScope() { |
| i::HandleScope::CloseScope(isolate_, prev_next_, prev_limit_); |
| } |
| |
| void* HandleScope::operator new(size_t) { base::OS::Abort(); } |
| void* HandleScope::operator new[](size_t) { base::OS::Abort(); } |
| void HandleScope::operator delete(void*, size_t) { base::OS::Abort(); } |
| void HandleScope::operator delete[](void*, size_t) { base::OS::Abort(); } |
| |
| int HandleScope::NumberOfHandles(Isolate* isolate) { |
| return i::HandleScope::NumberOfHandles( |
| reinterpret_cast<i::Isolate*>(isolate)); |
| } |
| |
| i::Address* HandleScope::CreateHandle(i::Isolate* isolate, i::Address value) { |
| return i::HandleScope::CreateHandle(isolate, value); |
| } |
| |
| EscapableHandleScope::EscapableHandleScope(Isolate* v8_isolate) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| escape_slot_ = |
| CreateHandle(isolate, i::ReadOnlyRoots(isolate).the_hole_value().ptr()); |
| Initialize(v8_isolate); |
| } |
| |
| i::Address* EscapableHandleScope::Escape(i::Address* escape_value) { |
| i::Heap* heap = reinterpret_cast<i::Isolate*>(GetIsolate())->heap(); |
| Utils::ApiCheck(i::Object(*escape_slot_).IsTheHole(heap->isolate()), |
| "EscapableHandleScope::Escape", "Escape value set twice"); |
| if (escape_value == nullptr) { |
| *escape_slot_ = i::ReadOnlyRoots(heap).undefined_value().ptr(); |
| return nullptr; |
| } |
| *escape_slot_ = *escape_value; |
| return escape_slot_; |
| } |
| |
| void* EscapableHandleScope::operator new(size_t) { base::OS::Abort(); } |
| void* EscapableHandleScope::operator new[](size_t) { base::OS::Abort(); } |
| void EscapableHandleScope::operator delete(void*, size_t) { base::OS::Abort(); } |
| void EscapableHandleScope::operator delete[](void*, size_t) { |
| base::OS::Abort(); |
| } |
| |
| SealHandleScope::SealHandleScope(Isolate* isolate) |
| : isolate_(reinterpret_cast<i::Isolate*>(isolate)) { |
| i::HandleScopeData* current = isolate_->handle_scope_data(); |
| prev_limit_ = current->limit; |
| current->limit = current->next; |
| prev_sealed_level_ = current->sealed_level; |
| current->sealed_level = current->level; |
| } |
| |
| SealHandleScope::~SealHandleScope() { |
| i::HandleScopeData* current = isolate_->handle_scope_data(); |
| DCHECK_EQ(current->next, current->limit); |
| current->limit = prev_limit_; |
| DCHECK_EQ(current->level, current->sealed_level); |
| current->sealed_level = prev_sealed_level_; |
| } |
| |
| void* SealHandleScope::operator new(size_t) { base::OS::Abort(); } |
| void* SealHandleScope::operator new[](size_t) { base::OS::Abort(); } |
| void SealHandleScope::operator delete(void*, size_t) { base::OS::Abort(); } |
| void SealHandleScope::operator delete[](void*, size_t) { base::OS::Abort(); } |
| |
| bool Data::IsModule() const { return Utils::OpenHandle(this)->IsModule(); } |
| |
| bool Data::IsValue() const { |
| i::DisallowGarbageCollection no_gc; |
| i::Object self = *Utils::OpenHandle(this); |
| if (self.IsSmi()) return true; |
| i::HeapObject heap_object = i::HeapObject::cast(self); |
| DCHECK(!heap_object.IsTheHole()); |
| if (heap_object.IsSymbol()) { |
| return !i::Symbol::cast(heap_object).is_private(); |
| } |
| return heap_object.IsPrimitiveHeapObject() || heap_object.IsJSReceiver(); |
| } |
| |
| bool Data::IsPrivate() const { |
| return Utils::OpenHandle(this)->IsPrivateSymbol(); |
| } |
| |
| bool Data::IsObjectTemplate() const { |
| return Utils::OpenHandle(this)->IsObjectTemplateInfo(); |
| } |
| |
| bool Data::IsFunctionTemplate() const { |
| return Utils::OpenHandle(this)->IsFunctionTemplateInfo(); |
| } |
| |
| bool Data::IsContext() const { return Utils::OpenHandle(this)->IsContext(); } |
| |
| void Context::Enter() { |
| i::Handle<i::Context> env = Utils::OpenHandle(this); |
| i::Isolate* isolate = env->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScopeImplementer* impl = isolate->handle_scope_implementer(); |
| impl->EnterContext(*env); |
| impl->SaveContext(isolate->context()); |
| isolate->set_context(*env); |
| } |
| |
| void Context::Exit() { |
| i::Handle<i::Context> env = Utils::OpenHandle(this); |
| i::Isolate* isolate = env->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScopeImplementer* impl = isolate->handle_scope_implementer(); |
| if (!Utils::ApiCheck(impl->LastEnteredContextWas(*env), "v8::Context::Exit()", |
| "Cannot exit non-entered context")) { |
| return; |
| } |
| impl->LeaveContext(); |
| isolate->set_context(impl->RestoreContext()); |
| } |
| |
| Context::BackupIncumbentScope::BackupIncumbentScope( |
| Local<Context> backup_incumbent_context) |
| : backup_incumbent_context_(backup_incumbent_context) { |
| DCHECK(!backup_incumbent_context_.IsEmpty()); |
| |
| i::Handle<i::Context> env = Utils::OpenHandle(*backup_incumbent_context_); |
| i::Isolate* isolate = env->GetIsolate(); |
| |
| js_stack_comparable_address_ = |
| i::SimulatorStack::RegisterJSStackComparableAddress(isolate); |
| |
| prev_ = isolate->top_backup_incumbent_scope(); |
| isolate->set_top_backup_incumbent_scope(this); |
| } |
| |
| Context::BackupIncumbentScope::~BackupIncumbentScope() { |
| i::Handle<i::Context> env = Utils::OpenHandle(*backup_incumbent_context_); |
| i::Isolate* isolate = env->GetIsolate(); |
| |
| i::SimulatorStack::UnregisterJSStackComparableAddress(isolate); |
| |
| isolate->set_top_backup_incumbent_scope(prev_); |
| } |
| |
| STATIC_ASSERT(i::Internals::kEmbedderDataSlotSize == i::kEmbedderDataSlotSize); |
| |
| static i::Handle<i::EmbedderDataArray> EmbedderDataFor(Context* context, |
| int index, bool can_grow, |
| const char* location) { |
| i::Handle<i::Context> env = Utils::OpenHandle(context); |
| i::Isolate* isolate = env->GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| bool ok = Utils::ApiCheck(env->IsNativeContext(), location, |
| "Not a native context") && |
| Utils::ApiCheck(index >= 0, location, "Negative index"); |
| if (!ok) return i::Handle<i::EmbedderDataArray>(); |
| // TODO(ishell): remove cast once embedder_data slot has a proper type. |
| i::Handle<i::EmbedderDataArray> data( |
| i::EmbedderDataArray::cast(env->embedder_data()), isolate); |
| if (index < data->length()) return data; |
| if (!Utils::ApiCheck(can_grow && index < i::EmbedderDataArray::kMaxLength, |
| location, "Index too large")) { |
| return i::Handle<i::EmbedderDataArray>(); |
| } |
| data = i::EmbedderDataArray::EnsureCapacity(isolate, data, index); |
| env->set_embedder_data(*data); |
| return data; |
| } |
| |
| uint32_t Context::GetNumberOfEmbedderDataFields() { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(context->GetIsolate()); |
| Utils::ApiCheck(context->IsNativeContext(), |
| "Context::GetNumberOfEmbedderDataFields", |
| "Not a native context"); |
| // TODO(ishell): remove cast once embedder_data slot has a proper type. |
| return static_cast<uint32_t>( |
| i::EmbedderDataArray::cast(context->embedder_data()).length()); |
| } |
| |
| v8::Local<v8::Value> Context::SlowGetEmbedderData(int index) { |
| const char* location = "v8::Context::GetEmbedderData()"; |
| i::Handle<i::EmbedderDataArray> data = |
| EmbedderDataFor(this, index, false, location); |
| if (data.is_null()) return Local<Value>(); |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| i::Handle<i::Object> result(i::EmbedderDataSlot(*data, index).load_tagged(), |
| isolate); |
| return Utils::ToLocal(result); |
| } |
| |
| void Context::SetEmbedderData(int index, v8::Local<Value> value) { |
| const char* location = "v8::Context::SetEmbedderData()"; |
| i::Handle<i::EmbedderDataArray> data = |
| EmbedderDataFor(this, index, true, location); |
| if (data.is_null()) return; |
| i::Handle<i::Object> val = Utils::OpenHandle(*value); |
| i::EmbedderDataSlot::store_tagged(*data, index, *val); |
| DCHECK_EQ(*Utils::OpenHandle(*value), |
| *Utils::OpenHandle(*GetEmbedderData(index))); |
| } |
| |
| void* Context::SlowGetAlignedPointerFromEmbedderData(int index) { |
| const char* location = "v8::Context::GetAlignedPointerFromEmbedderData()"; |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| i::HandleScope handle_scope(isolate); |
| i::Handle<i::EmbedderDataArray> data = |
| EmbedderDataFor(this, index, false, location); |
| if (data.is_null()) return nullptr; |
| void* result; |
| Utils::ApiCheck( |
| i::EmbedderDataSlot(*data, index).ToAlignedPointer(isolate, &result), |
| location, "Pointer is not aligned"); |
| return result; |
| } |
| |
| void Context::SetAlignedPointerInEmbedderData(int index, void* value) { |
| const char* location = "v8::Context::SetAlignedPointerInEmbedderData()"; |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| i::Handle<i::EmbedderDataArray> data = |
| EmbedderDataFor(this, index, true, location); |
| bool ok = |
| i::EmbedderDataSlot(*data, index).store_aligned_pointer(isolate, value); |
| Utils::ApiCheck(ok, location, "Pointer is not aligned"); |
| DCHECK_EQ(value, GetAlignedPointerFromEmbedderData(index)); |
| } |
| |
| // --- T e m p l a t e --- |
| |
| static void InitializeTemplate(i::TemplateInfo that, int type, |
| bool do_not_cache) { |
| that.set_number_of_properties(0); |
| that.set_tag(type); |
| int serial_number = |
| do_not_cache ? i::TemplateInfo::kDoNotCache : i::TemplateInfo::kUncached; |
| that.set_serial_number(serial_number); |
| } |
| |
| void Template::Set(v8::Local<Name> name, v8::Local<Data> value, |
| v8::PropertyAttribute attribute) { |
| auto templ = Utils::OpenHandle(this); |
| i::Isolate* isolate = templ->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| auto value_obj = Utils::OpenHandle(*value); |
| |
| Utils::ApiCheck(!value_obj->IsJSReceiver() || value_obj->IsTemplateInfo(), |
| "v8::Template::Set", |
| "Invalid value, must be a primitive or a Template"); |
| |
| // The template cache only performs shallow clones, if we set an |
| // ObjectTemplate as a property value then we can not cache the receiver |
| // template. |
| if (value_obj->IsObjectTemplateInfo()) { |
| templ->set_serial_number(i::TemplateInfo::kDoNotCache); |
| } |
| |
| i::ApiNatives::AddDataProperty(isolate, templ, Utils::OpenHandle(*name), |
| value_obj, |
| static_cast<i::PropertyAttributes>(attribute)); |
| } |
| |
| void Template::SetPrivate(v8::Local<Private> name, v8::Local<Data> value, |
| v8::PropertyAttribute attribute) { |
| Set(Utils::ToLocal(Utils::OpenHandle(reinterpret_cast<Name*>(*name))), value, |
| attribute); |
| } |
| |
| void Template::SetAccessorProperty(v8::Local<v8::Name> name, |
| v8::Local<FunctionTemplate> getter, |
| v8::Local<FunctionTemplate> setter, |
| v8::PropertyAttribute attribute, |
| v8::AccessControl access_control) { |
| // TODO(verwaest): Remove |access_control|. |
| DCHECK_EQ(v8::DEFAULT, access_control); |
| auto templ = Utils::OpenHandle(this); |
| auto isolate = templ->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| DCHECK(!name.IsEmpty()); |
| DCHECK(!getter.IsEmpty() || !setter.IsEmpty()); |
| i::HandleScope scope(isolate); |
| i::ApiNatives::AddAccessorProperty( |
| isolate, templ, Utils::OpenHandle(*name), |
| Utils::OpenHandle(*getter, true), Utils::OpenHandle(*setter, true), |
| static_cast<i::PropertyAttributes>(attribute)); |
| } |
| |
| // --- F u n c t i o n T e m p l a t e --- |
| static void InitializeFunctionTemplate(i::FunctionTemplateInfo info, |
| bool do_not_cache) { |
| InitializeTemplate(info, Consts::FUNCTION_TEMPLATE, do_not_cache); |
| info.set_flag(0); |
| } |
| |
| static Local<ObjectTemplate> ObjectTemplateNew( |
| i::Isolate* isolate, v8::Local<FunctionTemplate> constructor, |
| bool do_not_cache); |
| |
| Local<ObjectTemplate> FunctionTemplate::PrototypeTemplate() { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* i_isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::HeapObject> result(self->GetPrototypeTemplate(), i_isolate); |
| if (result->IsUndefined(i_isolate)) { |
| // Do not cache prototype objects. |
| result = Utils::OpenHandle( |
| *ObjectTemplateNew(i_isolate, Local<FunctionTemplate>(), true)); |
| i::FunctionTemplateInfo::SetPrototypeTemplate(i_isolate, self, result); |
| } |
| return ToApiHandle<ObjectTemplate>(result); |
| } |
| |
| void FunctionTemplate::SetPrototypeProviderTemplate( |
| Local<FunctionTemplate> prototype_provider) { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* i_isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::FunctionTemplateInfo> result = |
| Utils::OpenHandle(*prototype_provider); |
| Utils::ApiCheck(self->GetPrototypeTemplate().IsUndefined(i_isolate), |
| "v8::FunctionTemplate::SetPrototypeProviderTemplate", |
| "Protoype must be undefined"); |
| Utils::ApiCheck(self->GetParentTemplate().IsUndefined(i_isolate), |
| "v8::FunctionTemplate::SetPrototypeProviderTemplate", |
| "Prototype provider must be empty"); |
| i::FunctionTemplateInfo::SetPrototypeProviderTemplate(i_isolate, self, |
| result); |
| } |
| |
| static void EnsureNotPublished(i::Handle<i::FunctionTemplateInfo> info, |
| const char* func) { |
| DCHECK_IMPLIES(info->instantiated(), info->published()); |
| Utils::ApiCheck(!info->published(), func, |
| "FunctionTemplate already instantiated"); |
| } |
| |
| void FunctionTemplate::Inherit(v8::Local<FunctionTemplate> value) { |
| auto info = Utils::OpenHandle(this); |
| EnsureNotPublished(info, "v8::FunctionTemplate::Inherit"); |
| i::Isolate* i_isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| Utils::ApiCheck(info->GetPrototypeProviderTemplate().IsUndefined(i_isolate), |
| "v8::FunctionTemplate::Inherit", |
| "Protoype provider must be empty"); |
| i::FunctionTemplateInfo::SetParentTemplate(i_isolate, info, |
| Utils::OpenHandle(*value)); |
| } |
| |
| static Local<FunctionTemplate> FunctionTemplateNew( |
| i::Isolate* isolate, FunctionCallback callback, v8::Local<Value> data, |
| v8::Local<Signature> signature, int length, ConstructorBehavior behavior, |
| bool do_not_cache, |
| v8::Local<Private> cached_property_name = v8::Local<Private>(), |
| SideEffectType side_effect_type = SideEffectType::kHasSideEffect, |
| const MemorySpan<const CFunction>& c_function_overloads = {}, |
| uint8_t instance_type = 0, |
| uint8_t allowed_receiver_instance_type_range_start = 0, |
| uint8_t allowed_receiver_instance_type_range_end = 0) { |
| i::Handle<i::Struct> struct_obj = isolate->factory()->NewStruct( |
| i::FUNCTION_TEMPLATE_INFO_TYPE, i::AllocationType::kOld); |
| i::Handle<i::FunctionTemplateInfo> obj = |
| i::Handle<i::FunctionTemplateInfo>::cast(struct_obj); |
| { |
| // Disallow GC until all fields of obj have acceptable types. |
| i::DisallowGarbageCollection no_gc; |
| i::FunctionTemplateInfo raw = *obj; |
| InitializeFunctionTemplate(raw, do_not_cache); |
| raw.set_length(length); |
| raw.set_undetectable(false); |
| raw.set_needs_access_check(false); |
| raw.set_accept_any_receiver(true); |
| if (!signature.IsEmpty()) { |
| raw.set_signature(*Utils::OpenHandle(*signature)); |
| } |
| raw.set_cached_property_name( |
| cached_property_name.IsEmpty() |
| ? i::ReadOnlyRoots(isolate).the_hole_value() |
| : *Utils::OpenHandle(*cached_property_name)); |
| if (behavior == ConstructorBehavior::kThrow) raw.set_remove_prototype(true); |
| raw.SetInstanceType(instance_type); |
| raw.set_allowed_receiver_instance_type_range_start( |
| allowed_receiver_instance_type_range_start); |
| raw.set_allowed_receiver_instance_type_range_end( |
| allowed_receiver_instance_type_range_end); |
| } |
| if (callback != nullptr) { |
| Utils::ToLocal(obj)->SetCallHandler(callback, data, side_effect_type, |
| c_function_overloads); |
| } |
| return Utils::ToLocal(obj); |
| } |
| |
| Local<FunctionTemplate> FunctionTemplate::New( |
| Isolate* isolate, FunctionCallback callback, v8::Local<Value> data, |
| v8::Local<Signature> signature, int length, ConstructorBehavior behavior, |
| SideEffectType side_effect_type, const CFunction* c_function, |
| uint16_t instance_type, uint16_t allowed_receiver_instance_type_range_start, |
| uint16_t allowed_receiver_instance_type_range_end) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| // Changes to the environment cannot be captured in the snapshot. Expect no |
| // function templates when the isolate is created for serialization. |
| LOG_API(i_isolate, FunctionTemplate, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| return FunctionTemplateNew( |
| i_isolate, callback, data, signature, length, behavior, false, |
| Local<Private>(), side_effect_type, |
| c_function ? MemorySpan<const CFunction>{c_function, 1} |
| : MemorySpan<const CFunction>{}, |
| instance_type, allowed_receiver_instance_type_range_start, |
| allowed_receiver_instance_type_range_end); |
| } |
| |
| Local<FunctionTemplate> FunctionTemplate::NewWithCFunctionOverloads( |
| Isolate* isolate, FunctionCallback callback, v8::Local<Value> data, |
| v8::Local<Signature> signature, int length, ConstructorBehavior behavior, |
| SideEffectType side_effect_type, |
| const MemorySpan<const CFunction>& c_function_overloads) { |
| // TODO(mslekova): Once runtime overload resolution between sequences is |
| // supported, check that if (c_function_overloads.size() == 2), then |
| // c_function_overloads.data()[0]. |
| // CanResolveOverload(c_function_overloads.data()[1]). We won't support |
| // the case where the size is greater than 2 for runtime resolution, until |
| // we've added support for ArrayBuffers and ArrayBufferViews. OTOH the |
| // overloads list might contain more than 2 functions with different arity, |
| // the resolution between which is available at compile time. |
| |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, FunctionTemplate, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| return FunctionTemplateNew(i_isolate, callback, data, signature, length, |
| behavior, false, Local<Private>(), |
| side_effect_type, c_function_overloads); |
| } |
| |
| Local<FunctionTemplate> FunctionTemplate::NewWithCache( |
| Isolate* isolate, FunctionCallback callback, Local<Private> cache_property, |
| Local<Value> data, Local<Signature> signature, int length, |
| SideEffectType side_effect_type) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, FunctionTemplate, NewWithCache); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| return FunctionTemplateNew(i_isolate, callback, data, signature, length, |
| ConstructorBehavior::kAllow, false, cache_property, |
| side_effect_type); |
| } |
| |
| Local<Signature> Signature::New(Isolate* isolate, |
| Local<FunctionTemplate> receiver) { |
| return Utils::SignatureToLocal(Utils::OpenHandle(*receiver)); |
| } |
| |
| Local<AccessorSignature> AccessorSignature::New( |
| Isolate* isolate, Local<FunctionTemplate> receiver) { |
| return Utils::AccessorSignatureToLocal(Utils::OpenHandle(*receiver)); |
| } |
| |
| #define SET_FIELD_WRAPPED(isolate, obj, setter, cdata) \ |
| do { \ |
| i::Handle<i::Object> foreign = FromCData(isolate, cdata); \ |
| (obj)->setter(*foreign); \ |
| } while (false) |
| |
| void FunctionTemplate::SetCallHandler( |
| FunctionCallback callback, v8::Local<Value> data, |
| SideEffectType side_effect_type, |
| const MemorySpan<const CFunction>& c_function_overloads) { |
| auto info = Utils::OpenHandle(this); |
| EnsureNotPublished(info, "v8::FunctionTemplate::SetCallHandler"); |
| i::Isolate* isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| i::Handle<i::CallHandlerInfo> obj = isolate->factory()->NewCallHandlerInfo( |
| side_effect_type == SideEffectType::kHasNoSideEffect); |
| SET_FIELD_WRAPPED(isolate, obj, set_callback, callback); |
| SET_FIELD_WRAPPED(isolate, obj, set_js_callback, obj->redirected_callback()); |
| if (data.IsEmpty()) { |
| data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| obj->set_data(*Utils::OpenHandle(*data)); |
| if (c_function_overloads.size() > 0) { |
| // Stores the data for a sequence of CFunction overloads into a single |
| // FixedArray, as [address_0, signature_0, ... address_n-1, signature_n-1]. |
| i::Handle<i::FixedArray> function_overloads = |
| isolate->factory()->NewFixedArray(static_cast<int>( |
| c_function_overloads.size() * |
| i::FunctionTemplateInfo::kFunctionOverloadEntrySize)); |
| int function_count = static_cast<int>(c_function_overloads.size()); |
| for (int i = 0; i < function_count; i++) { |
| const CFunction& c_function = c_function_overloads.data()[i]; |
| i::Handle<i::Object> address = |
| FromCData(isolate, c_function.GetAddress()); |
| function_overloads->set( |
| i::FunctionTemplateInfo::kFunctionOverloadEntrySize * i, *address); |
| i::Handle<i::Object> signature = |
| FromCData(isolate, c_function.GetTypeInfo()); |
| function_overloads->set( |
| i::FunctionTemplateInfo::kFunctionOverloadEntrySize * i + 1, |
| *signature); |
| } |
| i::FunctionTemplateInfo::SetCFunctionOverloads(isolate, info, |
| function_overloads); |
| } |
| info->set_call_code(*obj, kReleaseStore); |
| } |
| |
| namespace { |
| |
| template <typename Getter, typename Setter> |
| i::Handle<i::AccessorInfo> MakeAccessorInfo( |
| i::Isolate* isolate, v8::Local<Name> name, Getter getter, Setter setter, |
| v8::Local<Value> data, v8::AccessControl settings, |
| v8::Local<AccessorSignature> signature, bool is_special_data_property, |
| bool replace_on_access) { |
| i::Handle<i::AccessorInfo> obj = isolate->factory()->NewAccessorInfo(); |
| SET_FIELD_WRAPPED(isolate, obj, set_getter, getter); |
| DCHECK_IMPLIES(replace_on_access, |
| is_special_data_property && setter == nullptr); |
| if (is_special_data_property && setter == nullptr) { |
| setter = reinterpret_cast<Setter>(&i::Accessors::ReconfigureToDataProperty); |
| } |
| SET_FIELD_WRAPPED(isolate, obj, set_setter, setter); |
| i::Address redirected = obj->redirected_getter(); |
| if (redirected != i::kNullAddress) { |
| SET_FIELD_WRAPPED(isolate, obj, set_js_getter, redirected); |
| } |
| if (data.IsEmpty()) { |
| data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| obj->set_data(*Utils::OpenHandle(*data)); |
| obj->set_is_special_data_property(is_special_data_property); |
| obj->set_replace_on_access(replace_on_access); |
| i::Handle<i::Name> accessor_name = Utils::OpenHandle(*name); |
| if (!accessor_name->IsUniqueName()) { |
| accessor_name = isolate->factory()->InternalizeString( |
| i::Handle<i::String>::cast(accessor_name)); |
| } |
| obj->set_name(*accessor_name); |
| if (settings & ALL_CAN_READ) obj->set_all_can_read(true); |
| if (settings & ALL_CAN_WRITE) obj->set_all_can_write(true); |
| obj->set_initial_property_attributes(i::NONE); |
| if (!signature.IsEmpty()) { |
| obj->set_expected_receiver_type(*Utils::OpenHandle(*signature)); |
| } |
| return obj; |
| } |
| |
| } // namespace |
| |
| Local<ObjectTemplate> FunctionTemplate::InstanceTemplate() { |
| i::Handle<i::FunctionTemplateInfo> handle = Utils::OpenHandle(this, true); |
| if (!Utils::ApiCheck(!handle.is_null(), |
| "v8::FunctionTemplate::InstanceTemplate()", |
| "Reading from empty handle")) { |
| return Local<ObjectTemplate>(); |
| } |
| i::Isolate* isolate = handle->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| if (handle->GetInstanceTemplate().IsUndefined(isolate)) { |
| Local<ObjectTemplate> templ = |
| ObjectTemplate::New(isolate, ToApiHandle<FunctionTemplate>(handle)); |
| i::FunctionTemplateInfo::SetInstanceTemplate(isolate, handle, |
| Utils::OpenHandle(*templ)); |
| } |
| i::Handle<i::ObjectTemplateInfo> result( |
| i::ObjectTemplateInfo::cast(handle->GetInstanceTemplate()), isolate); |
| return Utils::ToLocal(result); |
| } |
| |
| void FunctionTemplate::SetLength(int length) { |
| auto info = Utils::OpenHandle(this); |
| EnsureNotPublished(info, "v8::FunctionTemplate::SetLength"); |
| auto isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| info->set_length(length); |
| } |
| |
| void FunctionTemplate::SetClassName(Local<String> name) { |
| auto info = Utils::OpenHandle(this); |
| EnsureNotPublished(info, "v8::FunctionTemplate::SetClassName"); |
| auto isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| info->set_class_name(*Utils::OpenHandle(*name)); |
| } |
| |
| void FunctionTemplate::SetAcceptAnyReceiver(bool value) { |
| auto info = Utils::OpenHandle(this); |
| EnsureNotPublished(info, "v8::FunctionTemplate::SetAcceptAnyReceiver"); |
| auto isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| info->set_accept_any_receiver(value); |
| } |
| |
| void FunctionTemplate::ReadOnlyPrototype() { |
| auto info = Utils::OpenHandle(this); |
| EnsureNotPublished(info, "v8::FunctionTemplate::ReadOnlyPrototype"); |
| auto isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| info->set_read_only_prototype(true); |
| } |
| |
| void FunctionTemplate::RemovePrototype() { |
| auto info = Utils::OpenHandle(this); |
| EnsureNotPublished(info, "v8::FunctionTemplate::RemovePrototype"); |
| auto isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| info->set_remove_prototype(true); |
| } |
| |
| // --- O b j e c t T e m p l a t e --- |
| |
| Local<ObjectTemplate> ObjectTemplate::New( |
| Isolate* isolate, v8::Local<FunctionTemplate> constructor) { |
| return New(reinterpret_cast<i::Isolate*>(isolate), constructor); |
| } |
| |
| static Local<ObjectTemplate> ObjectTemplateNew( |
| i::Isolate* isolate, v8::Local<FunctionTemplate> constructor, |
| bool do_not_cache) { |
| LOG_API(isolate, ObjectTemplate, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::Struct> struct_obj = isolate->factory()->NewStruct( |
| i::OBJECT_TEMPLATE_INFO_TYPE, i::AllocationType::kOld); |
| i::Handle<i::ObjectTemplateInfo> obj = |
| i::Handle<i::ObjectTemplateInfo>::cast(struct_obj); |
| { |
| // Disallow GC until all fields of obj have acceptable types. |
| i::DisallowGarbageCollection no_gc; |
| i::ObjectTemplateInfo raw = *obj; |
| InitializeTemplate(raw, Consts::OBJECT_TEMPLATE, do_not_cache); |
| raw.set_data(0); |
| if (!constructor.IsEmpty()) { |
| raw.set_constructor(*Utils::OpenHandle(*constructor)); |
| } |
| } |
| return Utils::ToLocal(obj); |
| } |
| |
| Local<ObjectTemplate> ObjectTemplate::New( |
| i::Isolate* isolate, v8::Local<FunctionTemplate> constructor) { |
| return ObjectTemplateNew(isolate, constructor, false); |
| } |
| |
| // Ensure that the object template has a constructor. If no |
| // constructor is available we create one. |
| static i::Handle<i::FunctionTemplateInfo> EnsureConstructor( |
| i::Isolate* isolate, ObjectTemplate* object_template) { |
| i::Object obj = Utils::OpenHandle(object_template)->constructor(); |
| if (!obj.IsUndefined(isolate)) { |
| i::FunctionTemplateInfo info = i::FunctionTemplateInfo::cast(obj); |
| return i::Handle<i::FunctionTemplateInfo>(info, isolate); |
| } |
| Local<FunctionTemplate> templ = |
| FunctionTemplate::New(reinterpret_cast<Isolate*>(isolate)); |
| i::Handle<i::FunctionTemplateInfo> constructor = Utils::OpenHandle(*templ); |
| i::FunctionTemplateInfo::SetInstanceTemplate( |
| isolate, constructor, Utils::OpenHandle(object_template)); |
| Utils::OpenHandle(object_template)->set_constructor(*constructor); |
| return constructor; |
| } |
| |
| template <typename Getter, typename Setter, typename Data, typename Template> |
| static void TemplateSetAccessor( |
| Template* template_obj, v8::Local<Name> name, Getter getter, Setter setter, |
| Data data, AccessControl settings, PropertyAttribute attribute, |
| v8::Local<AccessorSignature> signature, bool is_special_data_property, |
| bool replace_on_access, SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| auto info = Utils::OpenHandle(template_obj); |
| auto isolate = info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| i::Handle<i::AccessorInfo> accessor_info = |
| MakeAccessorInfo(isolate, name, getter, setter, data, settings, signature, |
| is_special_data_property, replace_on_access); |
| accessor_info->set_initial_property_attributes( |
| static_cast<i::PropertyAttributes>(attribute)); |
| accessor_info->set_getter_side_effect_type(getter_side_effect_type); |
| accessor_info->set_setter_side_effect_type(setter_side_effect_type); |
| i::ApiNatives::AddNativeDataProperty(isolate, info, accessor_info); |
| } |
| |
| void Template::SetNativeDataProperty( |
| v8::Local<String> name, AccessorGetterCallback getter, |
| AccessorSetterCallback setter, v8::Local<Value> data, |
| PropertyAttribute attribute, v8::Local<AccessorSignature> signature, |
| AccessControl settings, SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, |
| signature, true, false, getter_side_effect_type, |
| setter_side_effect_type); |
| } |
| |
| void Template::SetNativeDataProperty( |
| v8::Local<Name> name, AccessorNameGetterCallback getter, |
| AccessorNameSetterCallback setter, v8::Local<Value> data, |
| PropertyAttribute attribute, v8::Local<AccessorSignature> signature, |
| AccessControl settings, SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, |
| signature, true, false, getter_side_effect_type, |
| setter_side_effect_type); |
| } |
| |
| void Template::SetLazyDataProperty(v8::Local<Name> name, |
| AccessorNameGetterCallback getter, |
| v8::Local<Value> data, |
| PropertyAttribute attribute, |
| SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| TemplateSetAccessor(this, name, getter, |
| static_cast<AccessorNameSetterCallback>(nullptr), data, |
| DEFAULT, attribute, Local<AccessorSignature>(), true, |
| true, getter_side_effect_type, setter_side_effect_type); |
| } |
| |
| void Template::SetIntrinsicDataProperty(Local<Name> name, Intrinsic intrinsic, |
| PropertyAttribute attribute) { |
| auto templ = Utils::OpenHandle(this); |
| i::Isolate* isolate = templ->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| i::ApiNatives::AddDataProperty(isolate, templ, Utils::OpenHandle(*name), |
| intrinsic, |
| static_cast<i::PropertyAttributes>(attribute)); |
| } |
| |
| void ObjectTemplate::SetAccessor(v8::Local<String> name, |
| AccessorGetterCallback getter, |
| AccessorSetterCallback setter, |
| v8::Local<Value> data, AccessControl settings, |
| PropertyAttribute attribute, |
| v8::Local<AccessorSignature> signature, |
| SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, |
| signature, i::FLAG_disable_old_api_accessors, false, |
| getter_side_effect_type, setter_side_effect_type); |
| } |
| |
| void ObjectTemplate::SetAccessor(v8::Local<Name> name, |
| AccessorNameGetterCallback getter, |
| AccessorNameSetterCallback setter, |
| v8::Local<Value> data, AccessControl settings, |
| PropertyAttribute attribute, |
| v8::Local<AccessorSignature> signature, |
| SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| TemplateSetAccessor(this, name, getter, setter, data, settings, attribute, |
| signature, i::FLAG_disable_old_api_accessors, false, |
| getter_side_effect_type, setter_side_effect_type); |
| } |
| |
| template <typename Getter, typename Setter, typename Query, typename Descriptor, |
| typename Deleter, typename Enumerator, typename Definer> |
| static i::Handle<i::InterceptorInfo> CreateInterceptorInfo( |
| i::Isolate* isolate, Getter getter, Setter setter, Query query, |
| Descriptor descriptor, Deleter remover, Enumerator enumerator, |
| Definer definer, Local<Value> data, PropertyHandlerFlags flags) { |
| auto obj = i::Handle<i::InterceptorInfo>::cast(isolate->factory()->NewStruct( |
| i::INTERCEPTOR_INFO_TYPE, i::AllocationType::kOld)); |
| obj->set_flags(0); |
| |
| if (getter != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_getter, getter); |
| if (setter != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_setter, setter); |
| if (query != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_query, query); |
| if (descriptor != nullptr) |
| SET_FIELD_WRAPPED(isolate, obj, set_descriptor, descriptor); |
| if (remover != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_deleter, remover); |
| if (enumerator != nullptr) |
| SET_FIELD_WRAPPED(isolate, obj, set_enumerator, enumerator); |
| if (definer != nullptr) SET_FIELD_WRAPPED(isolate, obj, set_definer, definer); |
| obj->set_can_intercept_symbols( |
| !(static_cast<int>(flags) & |
| static_cast<int>(PropertyHandlerFlags::kOnlyInterceptStrings))); |
| obj->set_all_can_read(static_cast<int>(flags) & |
| static_cast<int>(PropertyHandlerFlags::kAllCanRead)); |
| obj->set_non_masking(static_cast<int>(flags) & |
| static_cast<int>(PropertyHandlerFlags::kNonMasking)); |
| obj->set_has_no_side_effect( |
| static_cast<int>(flags) & |
| static_cast<int>(PropertyHandlerFlags::kHasNoSideEffect)); |
| |
| if (data.IsEmpty()) { |
| data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| obj->set_data(*Utils::OpenHandle(*data)); |
| return obj; |
| } |
| |
| template <typename Getter, typename Setter, typename Query, typename Descriptor, |
| typename Deleter, typename Enumerator, typename Definer> |
| static i::Handle<i::InterceptorInfo> CreateNamedInterceptorInfo( |
| i::Isolate* isolate, Getter getter, Setter setter, Query query, |
| Descriptor descriptor, Deleter remover, Enumerator enumerator, |
| Definer definer, Local<Value> data, PropertyHandlerFlags flags) { |
| auto interceptor = |
| CreateInterceptorInfo(isolate, getter, setter, query, descriptor, remover, |
| enumerator, definer, data, flags); |
| interceptor->set_is_named(true); |
| return interceptor; |
| } |
| |
| template <typename Getter, typename Setter, typename Query, typename Descriptor, |
| typename Deleter, typename Enumerator, typename Definer> |
| static i::Handle<i::InterceptorInfo> CreateIndexedInterceptorInfo( |
| i::Isolate* isolate, Getter getter, Setter setter, Query query, |
| Descriptor descriptor, Deleter remover, Enumerator enumerator, |
| Definer definer, Local<Value> data, PropertyHandlerFlags flags) { |
| auto interceptor = |
| CreateInterceptorInfo(isolate, getter, setter, query, descriptor, remover, |
| enumerator, definer, data, flags); |
| interceptor->set_is_named(false); |
| return interceptor; |
| } |
| |
| template <typename Getter, typename Setter, typename Query, typename Descriptor, |
| typename Deleter, typename Enumerator, typename Definer> |
| static void ObjectTemplateSetNamedPropertyHandler( |
| ObjectTemplate* templ, Getter getter, Setter setter, Query query, |
| Descriptor descriptor, Deleter remover, Enumerator enumerator, |
| Definer definer, Local<Value> data, PropertyHandlerFlags flags) { |
| i::Isolate* isolate = Utils::OpenHandle(templ)->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| auto cons = EnsureConstructor(isolate, templ); |
| EnsureNotPublished(cons, "ObjectTemplateSetNamedPropertyHandler"); |
| auto obj = |
| CreateNamedInterceptorInfo(isolate, getter, setter, query, descriptor, |
| remover, enumerator, definer, data, flags); |
| i::FunctionTemplateInfo::SetNamedPropertyHandler(isolate, cons, obj); |
| } |
| |
| void ObjectTemplate::SetHandler( |
| const NamedPropertyHandlerConfiguration& config) { |
| ObjectTemplateSetNamedPropertyHandler( |
| this, config.getter, config.setter, config.query, config.descriptor, |
| config.deleter, config.enumerator, config.definer, config.data, |
| config.flags); |
| } |
| |
| void ObjectTemplate::MarkAsUndetectable() { |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| auto cons = EnsureConstructor(isolate, this); |
| EnsureNotPublished(cons, "v8::ObjectTemplate::MarkAsUndetectable"); |
| cons->set_undetectable(true); |
| } |
| |
| void ObjectTemplate::SetAccessCheckCallback(AccessCheckCallback callback, |
| Local<Value> data) { |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| auto cons = EnsureConstructor(isolate, this); |
| EnsureNotPublished(cons, "v8::ObjectTemplate::SetAccessCheckCallback"); |
| |
| i::Handle<i::Struct> struct_info = isolate->factory()->NewStruct( |
| i::ACCESS_CHECK_INFO_TYPE, i::AllocationType::kOld); |
| i::Handle<i::AccessCheckInfo> info = |
| i::Handle<i::AccessCheckInfo>::cast(struct_info); |
| |
| SET_FIELD_WRAPPED(isolate, info, set_callback, callback); |
| info->set_named_interceptor(i::Object()); |
| info->set_indexed_interceptor(i::Object()); |
| |
| if (data.IsEmpty()) { |
| data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| info->set_data(*Utils::OpenHandle(*data)); |
| |
| i::FunctionTemplateInfo::SetAccessCheckInfo(isolate, cons, info); |
| cons->set_needs_access_check(true); |
| } |
| |
| void ObjectTemplate::SetAccessCheckCallbackAndHandler( |
| AccessCheckCallback callback, |
| const NamedPropertyHandlerConfiguration& named_handler, |
| const IndexedPropertyHandlerConfiguration& indexed_handler, |
| Local<Value> data) { |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| auto cons = EnsureConstructor(isolate, this); |
| EnsureNotPublished(cons, |
| "v8::ObjectTemplate::SetAccessCheckCallbackWithHandler"); |
| |
| i::Handle<i::Struct> struct_info = isolate->factory()->NewStruct( |
| i::ACCESS_CHECK_INFO_TYPE, i::AllocationType::kOld); |
| i::Handle<i::AccessCheckInfo> info = |
| i::Handle<i::AccessCheckInfo>::cast(struct_info); |
| |
| SET_FIELD_WRAPPED(isolate, info, set_callback, callback); |
| auto named_interceptor = CreateNamedInterceptorInfo( |
| isolate, named_handler.getter, named_handler.setter, named_handler.query, |
| named_handler.descriptor, named_handler.deleter, named_handler.enumerator, |
| named_handler.definer, named_handler.data, named_handler.flags); |
| info->set_named_interceptor(*named_interceptor); |
| auto indexed_interceptor = CreateIndexedInterceptorInfo( |
| isolate, indexed_handler.getter, indexed_handler.setter, |
| indexed_handler.query, indexed_handler.descriptor, |
| indexed_handler.deleter, indexed_handler.enumerator, |
| indexed_handler.definer, indexed_handler.data, indexed_handler.flags); |
| info->set_indexed_interceptor(*indexed_interceptor); |
| |
| if (data.IsEmpty()) { |
| data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| info->set_data(*Utils::OpenHandle(*data)); |
| |
| i::FunctionTemplateInfo::SetAccessCheckInfo(isolate, cons, info); |
| cons->set_needs_access_check(true); |
| } |
| |
| void ObjectTemplate::SetHandler( |
| const IndexedPropertyHandlerConfiguration& config) { |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| auto cons = EnsureConstructor(isolate, this); |
| EnsureNotPublished(cons, "v8::ObjectTemplate::SetHandler"); |
| auto obj = CreateIndexedInterceptorInfo( |
| isolate, config.getter, config.setter, config.query, config.descriptor, |
| config.deleter, config.enumerator, config.definer, config.data, |
| config.flags); |
| i::FunctionTemplateInfo::SetIndexedPropertyHandler(isolate, cons, obj); |
| } |
| |
| void ObjectTemplate::SetCallAsFunctionHandler(FunctionCallback callback, |
| Local<Value> data) { |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| auto cons = EnsureConstructor(isolate, this); |
| EnsureNotPublished(cons, "v8::ObjectTemplate::SetCallAsFunctionHandler"); |
| i::Handle<i::CallHandlerInfo> obj = isolate->factory()->NewCallHandlerInfo(); |
| SET_FIELD_WRAPPED(isolate, obj, set_callback, callback); |
| SET_FIELD_WRAPPED(isolate, obj, set_js_callback, obj->redirected_callback()); |
| if (data.IsEmpty()) { |
| data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| obj->set_data(*Utils::OpenHandle(*data)); |
| i::FunctionTemplateInfo::SetInstanceCallHandler(isolate, cons, obj); |
| } |
| |
| int ObjectTemplate::InternalFieldCount() const { |
| return Utils::OpenHandle(this)->embedder_field_count(); |
| } |
| |
| void ObjectTemplate::SetInternalFieldCount(int value) { |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| if (!Utils::ApiCheck(i::Smi::IsValid(value), |
| "v8::ObjectTemplate::SetInternalFieldCount()", |
| "Invalid embedder field count")) { |
| return; |
| } |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| if (value > 0) { |
| // The embedder field count is set by the constructor function's |
| // construct code, so we ensure that there is a constructor |
| // function to do the setting. |
| EnsureConstructor(isolate, this); |
| } |
| Utils::OpenHandle(this)->set_embedder_field_count(value); |
| } |
| |
| bool ObjectTemplate::IsImmutableProto() const { |
| return Utils::OpenHandle(this)->immutable_proto(); |
| } |
| |
| void ObjectTemplate::SetImmutableProto() { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| self->set_immutable_proto(true); |
| } |
| |
| bool ObjectTemplate::IsCodeLike() const { |
| return Utils::OpenHandle(this)->code_like(); |
| } |
| |
| void ObjectTemplate::SetCodeLike() { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| self->set_code_like(true); |
| } |
| |
| // --- S c r i p t s --- |
| |
| // Internally, UnboundScript is a SharedFunctionInfo, and Script is a |
| // JSFunction. |
| |
| ScriptCompiler::CachedData::CachedData(const uint8_t* data_, int length_, |
| BufferPolicy buffer_policy_) |
| : data(data_), |
| length(length_), |
| rejected(false), |
| buffer_policy(buffer_policy_) {} |
| |
| ScriptCompiler::CachedData::~CachedData() { |
| if (buffer_policy == BufferOwned) { |
| delete[] data; |
| } |
| } |
| |
| bool ScriptCompiler::ExternalSourceStream::SetBookmark() { return false; } |
| |
| void ScriptCompiler::ExternalSourceStream::ResetToBookmark() { UNREACHABLE(); } |
| |
| ScriptCompiler::StreamedSource::StreamedSource( |
| std::unique_ptr<ExternalSourceStream> stream, Encoding encoding) |
| : impl_(new i::ScriptStreamingData(std::move(stream), encoding)) {} |
| |
| ScriptCompiler::StreamedSource::~StreamedSource() = default; |
| |
| Local<Script> UnboundScript::BindToCurrentContext() { |
| auto function_info = |
| i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); |
| i::Isolate* isolate = function_info->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::JSFunction> function = |
| i::Factory::JSFunctionBuilder{isolate, function_info, |
| isolate->native_context()} |
| .Build(); |
| return ToApiHandle<Script>(function); |
| } |
| |
| int UnboundScript::GetId() const { |
| auto function_info = i::SharedFunctionInfo::cast(*Utils::OpenHandle(this)); |
| i::Isolate* isolate = function_info.GetIsolate(); |
| LOG_API(isolate, UnboundScript, GetId); |
| return i::Script::cast(function_info.script()).id(); |
| } |
| |
| int UnboundScript::GetLineNumber(int code_pos) { |
| i::Handle<i::SharedFunctionInfo> obj = |
| i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); |
| i::Isolate* isolate = obj->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| LOG_API(isolate, UnboundScript, GetLineNumber); |
| if (obj->script().IsScript()) { |
| i::Handle<i::Script> script(i::Script::cast(obj->script()), isolate); |
| return i::Script::GetLineNumber(script, code_pos); |
| } else { |
| return -1; |
| } |
| } |
| |
| Local<Value> UnboundScript::GetScriptName() { |
| i::Handle<i::SharedFunctionInfo> obj = |
| i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); |
| i::Isolate* isolate = obj->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| LOG_API(isolate, UnboundScript, GetName); |
| if (obj->script().IsScript()) { |
| i::Object name = i::Script::cast(obj->script()).name(); |
| return Utils::ToLocal(i::Handle<i::Object>(name, isolate)); |
| } else { |
| return Local<String>(); |
| } |
| } |
| |
| Local<Value> UnboundScript::GetSourceURL() { |
| i::Handle<i::SharedFunctionInfo> obj = |
| i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); |
| i::Isolate* isolate = obj->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| LOG_API(isolate, UnboundScript, GetSourceURL); |
| if (obj->script().IsScript()) { |
| i::Object url = i::Script::cast(obj->script()).source_url(); |
| return Utils::ToLocal(i::Handle<i::Object>(url, isolate)); |
| } else { |
| return Local<String>(); |
| } |
| } |
| |
| Local<Value> UnboundScript::GetSourceMappingURL() { |
| i::Handle<i::SharedFunctionInfo> obj = |
| i::Handle<i::SharedFunctionInfo>::cast(Utils::OpenHandle(this)); |
| i::Isolate* isolate = obj->GetIsolate(); |
| LOG_API(isolate, UnboundScript, GetSourceMappingURL); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| if (obj->script().IsScript()) { |
| i::Object url = i::Script::cast(obj->script()).source_mapping_url(); |
| return Utils::ToLocal(i::Handle<i::Object>(url, isolate)); |
| } else { |
| return Local<String>(); |
| } |
| } |
| |
| MaybeLocal<Value> Script::Run(Local<Context> context) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); |
| ENTER_V8(isolate, context, Script, Run, MaybeLocal<Value>(), |
| InternalEscapableScope); |
| i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); |
| i::NestedTimedHistogramScope execute_timer( |
| isolate->counters()->execute_precise()); |
| i::AggregatingHistogramTimerScope histogram_timer( |
| isolate->counters()->compile_lazy()); |
| auto fun = i::Handle<i::JSFunction>::cast(Utils::OpenHandle(this)); |
| |
| // TODO(crbug.com/1193459): remove once ablation study is completed |
| base::ElapsedTimer timer; |
| base::TimeDelta delta; |
| if (i::FLAG_script_delay > 0) { |
| delta = v8::base::TimeDelta::FromMillisecondsD(i::FLAG_script_delay); |
| } |
| if (i::FLAG_script_delay_once > 0 && !isolate->did_run_script_delay()) { |
| delta = v8::base::TimeDelta::FromMillisecondsD(i::FLAG_script_delay_once); |
| isolate->set_did_run_script_delay(true); |
| } |
| if (i::FLAG_script_delay_fraction > 0.0) { |
| timer.Start(); |
| } else if (delta.InMicroseconds() > 0) { |
| timer.Start(); |
| while (timer.Elapsed() < delta) { |
| // Busy wait. |
| } |
| } |
| |
| i::Handle<i::Object> receiver = isolate->global_proxy(); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>( |
| i::Execution::Call(isolate, fun, receiver, 0, nullptr), &result); |
| |
| if (i::FLAG_script_delay_fraction > 0.0) { |
| delta = v8::base::TimeDelta::FromMillisecondsD( |
| timer.Elapsed().InMillisecondsF() * i::FLAG_script_delay_fraction); |
| timer.Restart(); |
| while (timer.Elapsed() < delta) { |
| // Busy wait. |
| } |
| } |
| |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| Local<Value> ScriptOrModule::GetResourceName() { |
| i::Handle<i::Script> obj = Utils::OpenHandle(this); |
| i::Isolate* isolate = obj->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::Object> val(obj->name(), isolate); |
| return ToApiHandle<Value>(val); |
| } |
| |
| Local<PrimitiveArray> ScriptOrModule::GetHostDefinedOptions() { |
| i::Handle<i::Script> obj = Utils::OpenHandle(this); |
| i::Isolate* isolate = obj->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::FixedArray> val(obj->host_defined_options(), isolate); |
| return ToApiHandle<PrimitiveArray>(val); |
| } |
| |
| Local<UnboundScript> Script::GetUnboundScript() { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| i::SharedFunctionInfo sfi = i::JSFunction::cast(*obj).shared(); |
| i::Isolate* isolate = sfi.GetIsolate(); |
| return ToApiHandle<UnboundScript>(i::handle(sfi, isolate)); |
| } |
| |
| // static |
| Local<PrimitiveArray> PrimitiveArray::New(Isolate* v8_isolate, int length) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| Utils::ApiCheck(length >= 0, "v8::PrimitiveArray::New", |
| "length must be equal or greater than zero"); |
| i::Handle<i::FixedArray> array = isolate->factory()->NewFixedArray(length); |
| return ToApiHandle<PrimitiveArray>(array); |
| } |
| |
| int PrimitiveArray::Length() const { |
| i::Handle<i::FixedArray> array = Utils::OpenHandle(this); |
| return array->length(); |
| } |
| |
| void PrimitiveArray::Set(Isolate* v8_isolate, int index, |
| Local<Primitive> item) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| i::Handle<i::FixedArray> array = Utils::OpenHandle(this); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| Utils::ApiCheck(index >= 0 && index < array->length(), |
| "v8::PrimitiveArray::Set", |
| "index must be greater than or equal to 0 and less than the " |
| "array length"); |
| i::Handle<i::Object> i_item = Utils::OpenHandle(*item); |
| array->set(index, *i_item); |
| } |
| |
| Local<Primitive> PrimitiveArray::Get(Isolate* v8_isolate, int index) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| i::Handle<i::FixedArray> array = Utils::OpenHandle(this); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| Utils::ApiCheck(index >= 0 && index < array->length(), |
| "v8::PrimitiveArray::Get", |
| "index must be greater than or equal to 0 and less than the " |
| "array length"); |
| i::Handle<i::Object> i_item(array->get(index), isolate); |
| return ToApiHandle<Primitive>(i_item); |
| } |
| |
| int FixedArray::Length() const { |
| i::Handle<i::FixedArray> self = Utils::OpenHandle(this); |
| return self->length(); |
| } |
| |
| Local<Data> FixedArray::Get(Local<Context> context, int i) const { |
| i::Handle<i::FixedArray> self = Utils::OpenHandle(this); |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| CHECK_LT(i, self->length()); |
| i::Handle<i::Object> entry(self->get(i), isolate); |
| return ToApiHandle<Data>(entry); |
| } |
| |
| Local<String> ModuleRequest::GetSpecifier() const { |
| i::Handle<i::ModuleRequest> self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| return ToApiHandle<String>(i::handle(self->specifier(), isolate)); |
| } |
| |
| int ModuleRequest::GetSourceOffset() const { |
| return Utils::OpenHandle(this)->position(); |
| } |
| |
| Local<FixedArray> ModuleRequest::GetImportAssertions() const { |
| i::Handle<i::ModuleRequest> self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| return ToApiHandle<FixedArray>(i::handle(self->import_assertions(), isolate)); |
| } |
| |
| Module::Status Module::GetStatus() const { |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| switch (self->status()) { |
| case i::Module::kUnlinked: |
| case i::Module::kPreLinking: |
| return kUninstantiated; |
| case i::Module::kLinking: |
| return kInstantiating; |
| case i::Module::kLinked: |
| return kInstantiated; |
| case i::Module::kEvaluating: |
| case i::Module::kEvaluatingAsync: |
| return kEvaluating; |
| case i::Module::kEvaluated: |
| return kEvaluated; |
| case i::Module::kErrored: |
| return kErrored; |
| } |
| UNREACHABLE(); |
| } |
| |
| Local<Value> Module::GetException() const { |
| Utils::ApiCheck(GetStatus() == kErrored, "v8::Module::GetException", |
| "Module status must be kErrored"); |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return ToApiHandle<Value>(i::handle(self->GetException(), isolate)); |
| } |
| |
| int Module::GetModuleRequestsLength() const { |
| i::Module self = *Utils::OpenHandle(this); |
| if (self.IsSyntheticModule()) return 0; |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(self.GetIsolate()); |
| return i::SourceTextModule::cast(self).info().module_requests().length(); |
| } |
| |
| Local<String> Module::GetModuleRequest(int i) const { |
| Utils::ApiCheck(i >= 0, "v8::Module::GetModuleRequest", |
| "index must be positive"); |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| Utils::ApiCheck(self->IsSourceTextModule(), "v8::Module::GetModuleRequest", |
| "Expected SourceTextModule"); |
| i::Isolate* isolate = self->GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::FixedArray> module_requests( |
| i::Handle<i::SourceTextModule>::cast(self)->info().module_requests(), |
| isolate); |
| Utils::ApiCheck(i < module_requests->length(), "v8::Module::GetModuleRequest", |
| "index is out of bounds"); |
| i::Handle<i::ModuleRequest> module_request( |
| i::ModuleRequest::cast(module_requests->get(i)), isolate); |
| return ToApiHandle<String>(i::handle(module_request->specifier(), isolate)); |
| } |
| |
| Location Module::GetModuleRequestLocation(int i) const { |
| Utils::ApiCheck(i >= 0, "v8::Module::GetModuleRequest", |
| "index must be positive"); |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| Utils::ApiCheck(self->IsSourceTextModule(), |
| "Module::GetModuleRequestLocation", |
| "Expected SourceTextModule"); |
| i::Handle<i::FixedArray> module_requests( |
| i::Handle<i::SourceTextModule>::cast(self)->info().module_requests(), |
| isolate); |
| Utils::ApiCheck(i < module_requests->length(), "v8::Module::GetModuleRequest", |
| "index is out of bounds"); |
| i::Handle<i::ModuleRequest> module_request( |
| i::ModuleRequest::cast(module_requests->get(i)), isolate); |
| int position = module_request->position(); |
| i::Handle<i::Script> script( |
| i::Handle<i::SourceTextModule>::cast(self)->GetScript(), isolate); |
| i::Script::PositionInfo info; |
| i::Script::GetPositionInfo(script, position, &info, i::Script::WITH_OFFSET); |
| return v8::Location(info.line, info.column); |
| } |
| |
| Local<FixedArray> Module::GetModuleRequests() const { |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| if (self->IsSyntheticModule()) { |
| // Synthetic modules are leaf nodes in the module graph. They have no |
| // ModuleRequests. |
| return ToApiHandle<FixedArray>( |
| self->GetReadOnlyRoots().empty_fixed_array_handle()); |
| } else { |
| i::Isolate* isolate = self->GetIsolate(); |
| i::Handle<i::FixedArray> module_requests( |
| i::Handle<i::SourceTextModule>::cast(self)->info().module_requests(), |
| isolate); |
| return ToApiHandle<FixedArray>(module_requests); |
| } |
| } |
| |
| Location Module::SourceOffsetToLocation(int offset) const { |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| Utils::ApiCheck( |
| self->IsSourceTextModule(), "v8::Module::SourceOffsetToLocation", |
| "v8::Module::SourceOffsetToLocation must be used on an SourceTextModule"); |
| i::Handle<i::Script> script( |
| i::Handle<i::SourceTextModule>::cast(self)->GetScript(), isolate); |
| i::Script::PositionInfo info; |
| i::Script::GetPositionInfo(script, offset, &info, i::Script::WITH_OFFSET); |
| return v8::Location(info.line, info.column); |
| } |
| |
| Local<Value> Module::GetModuleNamespace() { |
| Utils::ApiCheck( |
| GetStatus() >= kInstantiated, "v8::Module::GetModuleNamespace", |
| "v8::Module::GetModuleNamespace must be used on an instantiated module"); |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::JSModuleNamespace> module_namespace = |
| i::Module::GetModuleNamespace(isolate, self); |
| return ToApiHandle<Value>(module_namespace); |
| } |
| |
| Local<UnboundModuleScript> Module::GetUnboundModuleScript() { |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| Utils::ApiCheck( |
| self->IsSourceTextModule(), "v8::Module::GetUnboundModuleScript", |
| "v8::Module::GetUnboundModuleScript must be used on an SourceTextModule"); |
| auto isolate = self->GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return ToApiHandle<UnboundModuleScript>(i::handle( |
| i::Handle<i::SourceTextModule>::cast(self)->GetSharedFunctionInfo(), |
| isolate)); |
| } |
| |
| int Module::ScriptId() const { |
| i::Module self = *Utils::OpenHandle(this); |
| Utils::ApiCheck(self.IsSourceTextModule(), "v8::Module::ScriptId", |
| "v8::Module::ScriptId must be used on an SourceTextModule"); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(self.GetIsolate()); |
| return i::SourceTextModule::cast(self).GetScript().id(); |
| } |
| |
| bool Module::IsGraphAsync() const { |
| Utils::ApiCheck( |
| GetStatus() >= kInstantiated, "v8::Module::IsGraphAsync", |
| "v8::Module::IsGraphAsync must be used on an instantiated module"); |
| i::Module self = *Utils::OpenHandle(this); |
| auto isolate = self.GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return self.IsGraphAsync(isolate); |
| } |
| |
| bool Module::IsSourceTextModule() const { |
| return Utils::OpenHandle(this)->IsSourceTextModule(); |
| } |
| |
| bool Module::IsSyntheticModule() const { |
| return Utils::OpenHandle(this)->IsSyntheticModule(); |
| } |
| |
| int Module::GetIdentityHash() const { return Utils::OpenHandle(this)->hash(); } |
| |
| Maybe<bool> Module::InstantiateModule(Local<Context> context, |
| Module::ResolveCallback callback) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Module, InstantiateModule, Nothing<bool>(), |
| i::HandleScope); |
| ResolveModuleCallback callback_with_import_assertions = nullptr; |
| has_pending_exception = |
| !i::Module::Instantiate(isolate, Utils::OpenHandle(this), context, |
| callback_with_import_assertions, callback); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| Maybe<bool> Module::InstantiateModule(Local<Context> context, |
| Module::ResolveModuleCallback callback) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Module, InstantiateModule, Nothing<bool>(), |
| i::HandleScope); |
| has_pending_exception = !i::Module::Instantiate( |
| isolate, Utils::OpenHandle(this), context, callback, nullptr); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| MaybeLocal<Value> Module::Evaluate(Local<Context> context) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); |
| ENTER_V8(isolate, context, Module, Evaluate, MaybeLocal<Value>(), |
| InternalEscapableScope); |
| i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); |
| i::NestedTimedHistogramScope execute_timer( |
| isolate->counters()->execute_precise()); |
| i::AggregatingHistogramTimerScope timer(isolate->counters()->compile_lazy()); |
| |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| Utils::ApiCheck(self->status() >= i::Module::kLinked, "Module::Evaluate", |
| "Expected instantiated module"); |
| |
| Local<Value> result; |
| has_pending_exception = !ToLocal(i::Module::Evaluate(isolate, self), &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| Local<Module> Module::CreateSyntheticModule( |
| Isolate* isolate, Local<String> module_name, |
| const std::vector<Local<v8::String>>& export_names, |
| v8::Module::SyntheticModuleEvaluationSteps evaluation_steps) { |
| auto i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::String> i_module_name = Utils::OpenHandle(*module_name); |
| i::Handle<i::FixedArray> i_export_names = i_isolate->factory()->NewFixedArray( |
| static_cast<int>(export_names.size())); |
| for (int i = 0; i < i_export_names->length(); ++i) { |
| i::Handle<i::String> str = i_isolate->factory()->InternalizeString( |
| Utils::OpenHandle(*export_names[i])); |
| i_export_names->set(i, *str); |
| } |
| return v8::Utils::ToLocal( |
| i::Handle<i::Module>(i_isolate->factory()->NewSyntheticModule( |
| i_module_name, i_export_names, evaluation_steps))); |
| } |
| |
| Maybe<bool> Module::SetSyntheticModuleExport(Isolate* isolate, |
| Local<String> export_name, |
| Local<v8::Value> export_value) { |
| auto i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Handle<i::String> i_export_name = Utils::OpenHandle(*export_name); |
| i::Handle<i::Object> i_export_value = Utils::OpenHandle(*export_value); |
| i::Handle<i::Module> self = Utils::OpenHandle(this); |
| Utils::ApiCheck(self->IsSyntheticModule(), |
| "v8::Module::SyntheticModuleSetExport", |
| "v8::Module::SyntheticModuleSetExport must only be called on " |
| "a SyntheticModule"); |
| ENTER_V8_NO_SCRIPT(i_isolate, isolate->GetCurrentContext(), Module, |
| SetSyntheticModuleExport, Nothing<bool>(), i::HandleScope); |
| has_pending_exception = |
| i::SyntheticModule::SetExport(i_isolate, |
| i::Handle<i::SyntheticModule>::cast(self), |
| i_export_name, i_export_value) |
| .IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| namespace { |
| |
| i::ScriptDetails GetScriptDetails(i::Isolate* isolate, |
| Local<Value> resource_name, |
| int resource_line_offset, |
| int resource_column_offset, |
| Local<Value> source_map_url, |
| Local<PrimitiveArray> host_defined_options, |
| ScriptOriginOptions origin_options) { |
| i::ScriptDetails script_details(Utils::OpenHandle(*(resource_name), true), |
| origin_options); |
| script_details.line_offset = resource_line_offset; |
| script_details.column_offset = resource_column_offset; |
| script_details.host_defined_options = |
| host_defined_options.IsEmpty() |
| ? isolate->factory()->empty_fixed_array() |
| : Utils::OpenHandle(*(host_defined_options)); |
| if (!source_map_url.IsEmpty()) { |
| script_details.source_map_url = Utils::OpenHandle(*(source_map_url)); |
| } |
| return script_details; |
| } |
| |
| } // namespace |
| |
| MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundInternal( |
| Isolate* v8_isolate, Source* source, CompileOptions options, |
| NoCacheReason no_cache_reason) { |
| auto isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.ScriptCompiler"); |
| ENTER_V8_NO_SCRIPT(isolate, v8_isolate->GetCurrentContext(), ScriptCompiler, |
| CompileUnbound, MaybeLocal<UnboundScript>(), |
| InternalEscapableScope); |
| |
| i::Handle<i::String> str = Utils::OpenHandle(*(source->source_string)); |
| |
| i::Handle<i::SharedFunctionInfo> result; |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.CompileScript"); |
| i::ScriptDetails script_details = GetScriptDetails( |
| isolate, source->resource_name, source->resource_line_offset, |
| source->resource_column_offset, source->source_map_url, |
| source->host_defined_options, source->resource_options); |
| |
| i::MaybeHandle<i::SharedFunctionInfo> maybe_function_info; |
| if (options == kConsumeCodeCache) { |
| if (source->consume_cache_task) { |
| // Take ownership of the internal deserialization task and clear it off |
| // the consume task on the source. |
| DCHECK_NOT_NULL(source->consume_cache_task->impl_); |
| std::unique_ptr<i::BackgroundDeserializeTask> deserialize_task = |
| std::move(source->consume_cache_task->impl_); |
| maybe_function_info = |
| i::Compiler::GetSharedFunctionInfoForScriptWithDeserializeTask( |
| isolate, str, script_details, deserialize_task.get(), options, |
| no_cache_reason, i::NOT_NATIVES_CODE); |
| source->cached_data->rejected = deserialize_task->rejected(); |
| } else { |
| DCHECK(source->cached_data); |
| // AlignedCachedData takes care of pointer-aligning the data. |
| auto cached_data = std::make_unique<i::AlignedCachedData>( |
| source->cached_data->data, source->cached_data->length); |
| maybe_function_info = |
| i::Compiler::GetSharedFunctionInfoForScriptWithCachedData( |
| isolate, str, script_details, cached_data.get(), options, |
| no_cache_reason, i::NOT_NATIVES_CODE); |
| source->cached_data->rejected = cached_data->rejected(); |
| } |
| } else { |
| // Compile without any cache. |
| maybe_function_info = i::Compiler::GetSharedFunctionInfoForScript( |
| isolate, str, script_details, options, no_cache_reason, |
| i::NOT_NATIVES_CODE); |
| } |
| |
| has_pending_exception = !maybe_function_info.ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(UnboundScript); |
| RETURN_ESCAPED(ToApiHandle<UnboundScript>(result)); |
| } |
| |
| MaybeLocal<UnboundScript> ScriptCompiler::CompileUnboundScript( |
| Isolate* v8_isolate, Source* source, CompileOptions options, |
| NoCacheReason no_cache_reason) { |
| Utils::ApiCheck( |
| !source->GetResourceOptions().IsModule(), |
| "v8::ScriptCompiler::CompileUnboundScript", |
| "v8::ScriptCompiler::CompileModule must be used to compile modules"); |
| return CompileUnboundInternal(v8_isolate, source, options, no_cache_reason); |
| } |
| |
| MaybeLocal<Script> ScriptCompiler::Compile(Local<Context> context, |
| Source* source, |
| CompileOptions options, |
| NoCacheReason no_cache_reason) { |
| Utils::ApiCheck( |
| !source->GetResourceOptions().IsModule(), "v8::ScriptCompiler::Compile", |
| "v8::ScriptCompiler::CompileModule must be used to compile modules"); |
| auto isolate = context->GetIsolate(); |
| MaybeLocal<UnboundScript> maybe = |
| CompileUnboundInternal(isolate, source, options, no_cache_reason); |
| Local<UnboundScript> result; |
| if (!maybe.ToLocal(&result)) return MaybeLocal<Script>(); |
| v8::Context::Scope scope(context); |
| return result->BindToCurrentContext(); |
| } |
| |
| MaybeLocal<Module> ScriptCompiler::CompileModule( |
| Isolate* isolate, Source* source, CompileOptions options, |
| NoCacheReason no_cache_reason) { |
| Utils::ApiCheck(options == kNoCompileOptions || options == kConsumeCodeCache, |
| "v8::ScriptCompiler::CompileModule", |
| "Invalid CompileOptions"); |
| Utils::ApiCheck(source->GetResourceOptions().IsModule(), |
| "v8::ScriptCompiler::CompileModule", |
| "Invalid ScriptOrigin: is_module must be true"); |
| MaybeLocal<UnboundScript> maybe = |
| CompileUnboundInternal(isolate, source, options, no_cache_reason); |
| Local<UnboundScript> unbound; |
| if (!maybe.ToLocal(&unbound)) return MaybeLocal<Module>(); |
| i::Handle<i::SharedFunctionInfo> shared = Utils::OpenHandle(*unbound); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| return ToApiHandle<Module>(i_isolate->factory()->NewSourceTextModule(shared)); |
| } |
| |
| namespace { |
| bool IsIdentifier(i::Isolate* isolate, i::Handle<i::String> string) { |
| string = i::String::Flatten(isolate, string); |
| const int length = string->length(); |
| if (length == 0) return false; |
| if (!i::IsIdentifierStart(string->Get(0))) return false; |
| i::DisallowGarbageCollection no_gc; |
| i::String::FlatContent flat = string->GetFlatContent(no_gc); |
| if (flat.IsOneByte()) { |
| auto vector = flat.ToOneByteVector(); |
| for (int i = 1; i < length; i++) { |
| if (!i::IsIdentifierPart(vector[i])) return false; |
| } |
| } else { |
| auto vector = flat.ToUC16Vector(); |
| for (int i = 1; i < length; i++) { |
| if (!i::IsIdentifierPart(vector[i])) return false; |
| } |
| } |
| return true; |
| } |
| } // anonymous namespace |
| |
| MaybeLocal<Function> ScriptCompiler::CompileFunctionInContext( |
| Local<Context> v8_context, Source* source, size_t arguments_count, |
| Local<String> arguments[], size_t context_extension_count, |
| Local<Object> context_extensions[], CompileOptions options, |
| NoCacheReason no_cache_reason, |
| Local<ScriptOrModule>* script_or_module_out) { |
| Local<Function> result; |
| |
| { |
| PREPARE_FOR_EXECUTION(v8_context, ScriptCompiler, CompileFunctionInContext, |
| Function); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.ScriptCompiler"); |
| |
| DCHECK(options == CompileOptions::kConsumeCodeCache || |
| options == CompileOptions::kEagerCompile || |
| options == CompileOptions::kNoCompileOptions); |
| |
| i::Handle<i::Context> context = Utils::OpenHandle(*v8_context); |
| |
| DCHECK(context->IsNativeContext()); |
| |
| i::Handle<i::FixedArray> arguments_list = |
| isolate->factory()->NewFixedArray(static_cast<int>(arguments_count)); |
| for (int i = 0; i < static_cast<int>(arguments_count); i++) { |
| i::Handle<i::String> argument = Utils::OpenHandle(*arguments[i]); |
| if (!IsIdentifier(isolate, argument)) return Local<Function>(); |
| arguments_list->set(i, *argument); |
| } |
| |
| for (size_t i = 0; i < context_extension_count; ++i) { |
| i::Handle<i::JSReceiver> extension = |
| Utils::OpenHandle(*context_extensions[i]); |
| if (!extension->IsJSObject()) return Local<Function>(); |
| context = isolate->factory()->NewWithContext( |
| context, |
| i::ScopeInfo::CreateForWithScope( |
| isolate, |
| context->IsNativeContext() |
| ? i::Handle<i::ScopeInfo>::null() |
| : i::Handle<i::ScopeInfo>(context->scope_info(), isolate)), |
| extension); |
| } |
| |
| i::ScriptDetails script_details = GetScriptDetails( |
| isolate, source->resource_name, source->resource_line_offset, |
| source->resource_column_offset, source->source_map_url, |
| source->host_defined_options, source->resource_options); |
| |
| std::unique_ptr<i::AlignedCachedData> cached_data; |
| if (options == kConsumeCodeCache) { |
| DCHECK(source->cached_data); |
| // ScriptData takes care of pointer-aligning the data. |
| cached_data.reset(new i::AlignedCachedData(source->cached_data->data, |
| source->cached_data->length)); |
| } |
| |
| i::Handle<i::JSFunction> scoped_result; |
| has_pending_exception = |
| !i::Compiler::GetWrappedFunction( |
| Utils::OpenHandle(*source->source_string), arguments_list, context, |
| script_details, cached_data.get(), options, no_cache_reason) |
| .ToHandle(&scoped_result); |
| if (options == kConsumeCodeCache) { |
| source->cached_data->rejected = cached_data->rejected(); |
| } |
| RETURN_ON_FAILED_EXECUTION(Function); |
| result = handle_scope.Escape(Utils::CallableToLocal(scoped_result)); |
| } |
| |
| if (script_or_module_out != nullptr) { |
| i::Handle<i::JSFunction> function = |
| i::Handle<i::JSFunction>::cast(Utils::OpenHandle(*result)); |
| i::Isolate* isolate = function->GetIsolate(); |
| i::Handle<i::SharedFunctionInfo> shared(function->shared(), isolate); |
| i::Handle<i::Script> script(i::Script::cast(shared->script()), isolate); |
| *script_or_module_out = v8::Utils::ScriptOrModuleToLocal(script); |
| } |
| |
| return result; |
| } |
| |
| void ScriptCompiler::ScriptStreamingTask::Run() { data_->task->Run(); } |
| |
| ScriptCompiler::ScriptStreamingTask* ScriptCompiler::StartStreaming( |
| Isolate* v8_isolate, StreamedSource* source, v8::ScriptType type) { |
| if (!i::FLAG_script_streaming) return nullptr; |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::ScriptStreamingData* data = source->impl(); |
| std::unique_ptr<i::BackgroundCompileTask> task = |
| std::make_unique<i::BackgroundCompileTask>(data, isolate, type); |
| data->task = std::move(task); |
| return new ScriptCompiler::ScriptStreamingTask(data); |
| } |
| |
| ScriptCompiler::ConsumeCodeCacheTask::ConsumeCodeCacheTask( |
| std::unique_ptr<i::BackgroundDeserializeTask> impl) |
| : impl_(std::move(impl)) {} |
| |
| ScriptCompiler::ConsumeCodeCacheTask::~ConsumeCodeCacheTask() = default; |
| |
| void ScriptCompiler::ConsumeCodeCacheTask::Run() { impl_->Run(); } |
| |
| ScriptCompiler::ConsumeCodeCacheTask* ScriptCompiler::StartConsumingCodeCache( |
| Isolate* v8_isolate, std::unique_ptr<CachedData> cached_data) { |
| if (!i::FLAG_concurrent_cache_deserialization) return nullptr; |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return new ScriptCompiler::ConsumeCodeCacheTask( |
| std::make_unique<i::BackgroundDeserializeTask>(isolate, |
| std::move(cached_data))); |
| } |
| |
| namespace { |
| i::MaybeHandle<i::SharedFunctionInfo> CompileStreamedSource( |
| i::Isolate* isolate, ScriptCompiler::StreamedSource* v8_source, |
| Local<String> full_source_string, const ScriptOrigin& origin) { |
| i::Handle<i::String> str = Utils::OpenHandle(*(full_source_string)); |
| i::ScriptDetails script_details = |
| GetScriptDetails(isolate, origin.ResourceName(), origin.LineOffset(), |
| origin.ColumnOffset(), origin.SourceMapUrl(), |
| origin.HostDefinedOptions(), origin.Options()); |
| i::ScriptStreamingData* data = v8_source->impl(); |
| return i::Compiler::GetSharedFunctionInfoForStreamedScript( |
| isolate, str, script_details, data); |
| } |
| |
| } // namespace |
| |
| MaybeLocal<Script> ScriptCompiler::Compile(Local<Context> context, |
| StreamedSource* v8_source, |
| Local<String> full_source_string, |
| const ScriptOrigin& origin) { |
| PREPARE_FOR_EXECUTION(context, ScriptCompiler, Compile, Script); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.ScriptCompiler"); |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), |
| "V8.CompileStreamedScript"); |
| i::Handle<i::SharedFunctionInfo> sfi; |
| i::MaybeHandle<i::SharedFunctionInfo> maybe_sfi = |
| CompileStreamedSource(isolate, v8_source, full_source_string, origin); |
| has_pending_exception = !maybe_sfi.ToHandle(&sfi); |
| if (has_pending_exception) isolate->ReportPendingMessages(); |
| RETURN_ON_FAILED_EXECUTION(Script); |
| Local<UnboundScript> generic = ToApiHandle<UnboundScript>(sfi); |
| if (generic.IsEmpty()) return Local<Script>(); |
| Local<Script> bound = generic->BindToCurrentContext(); |
| if (bound.IsEmpty()) return Local<Script>(); |
| RETURN_ESCAPED(bound); |
| } |
| |
| MaybeLocal<Module> ScriptCompiler::CompileModule( |
| Local<Context> context, StreamedSource* v8_source, |
| Local<String> full_source_string, const ScriptOrigin& origin) { |
| PREPARE_FOR_EXECUTION(context, ScriptCompiler, Compile, Module); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.ScriptCompiler"); |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), |
| "V8.CompileStreamedModule"); |
| i::Handle<i::SharedFunctionInfo> sfi; |
| i::MaybeHandle<i::SharedFunctionInfo> maybe_sfi = |
| CompileStreamedSource(isolate, v8_source, full_source_string, origin); |
| has_pending_exception = !maybe_sfi.ToHandle(&sfi); |
| if (has_pending_exception) isolate->ReportPendingMessages(); |
| RETURN_ON_FAILED_EXECUTION(Module); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| RETURN_ESCAPED( |
| ToApiHandle<Module>(i_isolate->factory()->NewSourceTextModule(sfi))); |
| } |
| |
| uint32_t ScriptCompiler::CachedDataVersionTag() { |
| return static_cast<uint32_t>(base::hash_combine( |
| internal::Version::Hash(), internal::FlagList::Hash(), |
| static_cast<uint32_t>(internal::CpuFeatures::SupportedFeatures()))); |
| } |
| |
| ScriptCompiler::CachedData* ScriptCompiler::CreateCodeCache( |
| Local<UnboundScript> unbound_script) { |
| i::Handle<i::SharedFunctionInfo> shared = |
| i::Handle<i::SharedFunctionInfo>::cast( |
| Utils::OpenHandle(*unbound_script)); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(shared->GetIsolate()); |
| DCHECK(shared->is_toplevel()); |
| return i::CodeSerializer::Serialize(shared); |
| } |
| |
| // static |
| ScriptCompiler::CachedData* ScriptCompiler::CreateCodeCache( |
| Local<UnboundModuleScript> unbound_module_script) { |
| i::Handle<i::SharedFunctionInfo> shared = |
| i::Handle<i::SharedFunctionInfo>::cast( |
| Utils::OpenHandle(*unbound_module_script)); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(shared->GetIsolate()); |
| DCHECK(shared->is_toplevel()); |
| return i::CodeSerializer::Serialize(shared); |
| } |
| |
| ScriptCompiler::CachedData* ScriptCompiler::CreateCodeCacheForFunction( |
| Local<Function> function) { |
| auto js_function = |
| i::Handle<i::JSFunction>::cast(Utils::OpenHandle(*function)); |
| i::Handle<i::SharedFunctionInfo> shared(js_function->shared(), |
| js_function->GetIsolate()); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(shared->GetIsolate()); |
| Utils::ApiCheck(shared->is_wrapped(), |
| "v8::ScriptCompiler::CreateCodeCacheForFunction", |
| "Expected SharedFunctionInfo with wrapped source code."); |
| return i::CodeSerializer::Serialize(shared); |
| } |
| |
| MaybeLocal<Script> Script::Compile(Local<Context> context, Local<String> source, |
| ScriptOrigin* origin) { |
| if (origin) { |
| ScriptCompiler::Source script_source(source, *origin); |
| return ScriptCompiler::Compile(context, &script_source); |
| } |
| ScriptCompiler::Source script_source(source); |
| return ScriptCompiler::Compile(context, &script_source); |
| } |
| |
| // --- E x c e p t i o n s --- |
| |
| v8::TryCatch::TryCatch(v8::Isolate* isolate) |
| : isolate_(reinterpret_cast<i::Isolate*>(isolate)), |
| next_(isolate_->try_catch_handler()), |
| is_verbose_(false), |
| can_continue_(true), |
| capture_message_(true), |
| rethrow_(false), |
| has_terminated_(false) { |
| ResetInternal(); |
| // Special handling for simulators which have a separate JS stack. |
| js_stack_comparable_address_ = static_cast<internal::Address>( |
| i::SimulatorStack::RegisterJSStackComparableAddress(isolate_)); |
| isolate_->RegisterTryCatchHandler(this); |
| } |
| |
| v8::TryCatch::~TryCatch() { |
| if (rethrow_) { |
| v8::Isolate* isolate = reinterpret_cast<Isolate*>(isolate_); |
| v8::HandleScope scope(isolate); |
| v8::Local<v8::Value> exc = v8::Local<v8::Value>::New(isolate, Exception()); |
| if (HasCaught() && capture_message_) { |
| // If an exception was caught and rethrow_ is indicated, the saved |
| // message, script, and location need to be restored to Isolate TLS |
| // for reuse. capture_message_ needs to be disabled so that Throw() |
| // does not create a new message. |
| isolate_->thread_local_top()->rethrowing_message_ = true; |
| isolate_->RestorePendingMessageFromTryCatch(this); |
| } |
| isolate_->UnregisterTryCatchHandler(this); |
| i::SimulatorStack::UnregisterJSStackComparableAddress(isolate_); |
| reinterpret_cast<Isolate*>(isolate_)->ThrowException(exc); |
| DCHECK(!isolate_->thread_local_top()->rethrowing_message_); |
| } else { |
| if (HasCaught() && isolate_->has_scheduled_exception()) { |
| // If an exception was caught but is still scheduled because no API call |
| // promoted it, then it is canceled to prevent it from being propagated. |
| // Note that this will not cancel termination exceptions. |
| isolate_->CancelScheduledExceptionFromTryCatch(this); |
| } |
| isolate_->UnregisterTryCatchHandler(this); |
| i::SimulatorStack::UnregisterJSStackComparableAddress(isolate_); |
| } |
| } |
| |
| void* v8::TryCatch::operator new(size_t) { base::OS::Abort(); } |
| void* v8::TryCatch::operator new[](size_t) { base::OS::Abort(); } |
| void v8::TryCatch::operator delete(void*, size_t) { base::OS::Abort(); } |
| void v8::TryCatch::operator delete[](void*, size_t) { base::OS::Abort(); } |
| |
| bool v8::TryCatch::HasCaught() const { |
| return !i::Object(reinterpret_cast<i::Address>(exception_)) |
| .IsTheHole(isolate_); |
| } |
| |
| bool v8::TryCatch::CanContinue() const { return can_continue_; } |
| |
| bool v8::TryCatch::HasTerminated() const { return has_terminated_; } |
| |
| v8::Local<v8::Value> v8::TryCatch::ReThrow() { |
| if (!HasCaught()) return v8::Local<v8::Value>(); |
| rethrow_ = true; |
| return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate_)); |
| } |
| |
| v8::Local<Value> v8::TryCatch::Exception() const { |
| if (HasCaught()) { |
| // Check for out of memory exception. |
| i::Object exception(reinterpret_cast<i::Address>(exception_)); |
| return v8::Utils::ToLocal(i::Handle<i::Object>(exception, isolate_)); |
| } else { |
| return v8::Local<Value>(); |
| } |
| } |
| |
| MaybeLocal<Value> v8::TryCatch::StackTrace(Local<Context> context, |
| Local<Value> exception) { |
| i::Handle<i::Object> i_exception = Utils::OpenHandle(*exception); |
| if (!i_exception->IsJSObject()) return v8::Local<Value>(); |
| PREPARE_FOR_EXECUTION(context, TryCatch, StackTrace, Value); |
| auto obj = i::Handle<i::JSObject>::cast(i_exception); |
| i::Handle<i::String> name = isolate->factory()->stack_string(); |
| Maybe<bool> maybe = i::JSReceiver::HasProperty(obj, name); |
| has_pending_exception = maybe.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| if (!maybe.FromJust()) return v8::Local<Value>(); |
| Local<Value> result; |
| has_pending_exception = |
| !ToLocal<Value>(i::JSReceiver::GetProperty(isolate, obj, name), &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Value> v8::TryCatch::StackTrace(Local<Context> context) const { |
| if (!HasCaught()) return v8::Local<Value>(); |
| return StackTrace(context, Exception()); |
| } |
| |
| v8::Local<v8::Message> v8::TryCatch::Message() const { |
| i::Object message(reinterpret_cast<i::Address>(message_obj_)); |
| DCHECK(message.IsJSMessageObject() || message.IsTheHole(isolate_)); |
| if (HasCaught() && !message.IsTheHole(isolate_)) { |
| return v8::Utils::MessageToLocal(i::Handle<i::Object>(message, isolate_)); |
| } else { |
| return v8::Local<v8::Message>(); |
| } |
| } |
| |
| void v8::TryCatch::Reset() { |
| if (!rethrow_ && HasCaught() && isolate_->has_scheduled_exception()) { |
| // If an exception was caught but is still scheduled because no API call |
| // promoted it, then it is canceled to prevent it from being propagated. |
| // Note that this will not cancel termination exceptions. |
| isolate_->CancelScheduledExceptionFromTryCatch(this); |
| } |
| ResetInternal(); |
| } |
| |
| void v8::TryCatch::ResetInternal() { |
| i::Object the_hole = i::ReadOnlyRoots(isolate_).the_hole_value(); |
| exception_ = reinterpret_cast<void*>(the_hole.ptr()); |
| message_obj_ = reinterpret_cast<void*>(the_hole.ptr()); |
| } |
| |
| void v8::TryCatch::SetVerbose(bool value) { is_verbose_ = value; } |
| |
| bool v8::TryCatch::IsVerbose() const { return is_verbose_; } |
| |
| void v8::TryCatch::SetCaptureMessage(bool value) { capture_message_ = value; } |
| |
| // --- M e s s a g e --- |
| |
| Local<String> Message::Get() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate)); |
| i::Handle<i::String> raw_result = |
| i::MessageHandler::GetMessage(isolate, self); |
| Local<String> result = Utils::ToLocal(raw_result); |
| return scope.Escape(result); |
| } |
| |
| v8::Isolate* Message::GetIsolate() const { |
| i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate(); |
| return reinterpret_cast<Isolate*>(isolate); |
| } |
| |
| ScriptOrigin Message::GetScriptOrigin() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::Script> script(self->script(), isolate); |
| return GetScriptOriginForScript(isolate, script); |
| } |
| |
| v8::Local<Value> Message::GetScriptResourceName() const { |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(Utils::OpenHandle(this)->GetIsolate()); |
| return GetScriptOrigin().ResourceName(); |
| } |
| |
| v8::Local<v8::StackTrace> Message::GetStackTrace() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate)); |
| i::Handle<i::Object> stackFramesObj(self->stack_frames(), isolate); |
| if (!stackFramesObj->IsFixedArray()) return v8::Local<v8::StackTrace>(); |
| auto stackTrace = i::Handle<i::FixedArray>::cast(stackFramesObj); |
| return scope.Escape(Utils::StackTraceToLocal(stackTrace)); |
| } |
| |
| Maybe<int> Message::GetLineNumber(Local<Context> context) const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::JSMessageObject::EnsureSourcePositionsAvailable(isolate, self); |
| return Just(self->GetLineNumber()); |
| } |
| |
| int Message::GetStartPosition() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::JSMessageObject::EnsureSourcePositionsAvailable(isolate, self); |
| return self->GetStartPosition(); |
| } |
| |
| int Message::GetEndPosition() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::JSMessageObject::EnsureSourcePositionsAvailable(isolate, self); |
| return self->GetEndPosition(); |
| } |
| |
| int Message::ErrorLevel() const { |
| auto self = Utils::OpenHandle(this); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(self->GetIsolate()); |
| return self->error_level(); |
| } |
| |
| int Message::GetStartColumn() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::JSMessageObject::EnsureSourcePositionsAvailable(isolate, self); |
| return self->GetColumnNumber(); |
| } |
| |
| int Message::GetWasmFunctionIndex() const { |
| #if V8_ENABLE_WEBASSEMBLY |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::JSMessageObject::EnsureSourcePositionsAvailable(isolate, self); |
| int start_position = self->GetColumnNumber(); |
| if (start_position == -1) return Message::kNoWasmFunctionIndexInfo; |
| |
| i::Handle<i::Script> script(self->script(), isolate); |
| |
| if (script->type() != i::Script::TYPE_WASM) { |
| return Message::kNoWasmFunctionIndexInfo; |
| } |
| |
| auto debug_script = ToApiHandle<debug::Script>(script); |
| return Local<debug::WasmScript>::Cast(debug_script) |
| ->GetContainingFunction(start_position); |
| #else |
| return Message::kNoWasmFunctionIndexInfo; |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| Maybe<int> Message::GetStartColumn(Local<Context> context) const { |
| return Just(GetStartColumn()); |
| } |
| |
| int Message::GetEndColumn() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::JSMessageObject::EnsureSourcePositionsAvailable(isolate, self); |
| const int column_number = self->GetColumnNumber(); |
| if (column_number == -1) return -1; |
| const int start = self->GetStartPosition(); |
| const int end = self->GetEndPosition(); |
| return column_number + (end - start); |
| } |
| |
| Maybe<int> Message::GetEndColumn(Local<Context> context) const { |
| return Just(GetEndColumn()); |
| } |
| |
| bool Message::IsSharedCrossOrigin() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return self->script().origin_options().IsSharedCrossOrigin(); |
| } |
| |
| bool Message::IsOpaque() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return self->script().origin_options().IsOpaque(); |
| } |
| |
| MaybeLocal<String> Message::GetSource(Local<Context> context) const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::Handle<i::String> source(self->GetSource(), isolate); |
| RETURN_ESCAPED(Utils::ToLocal(source)); |
| } |
| |
| MaybeLocal<String> Message::GetSourceLine(Local<Context> context) const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| EscapableHandleScope handle_scope(reinterpret_cast<Isolate*>(isolate)); |
| i::JSMessageObject::EnsureSourcePositionsAvailable(isolate, self); |
| RETURN_ESCAPED(Utils::ToLocal(self->GetSourceLine())); |
| } |
| |
| void Message::PrintCurrentStackTrace(Isolate* isolate, FILE* out) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| std::ostringstream stack_trace_stream; |
| i_isolate->PrintCurrentStackTrace(stack_trace_stream); |
| i::PrintF(out, "%s", stack_trace_stream.str().c_str()); |
| } |
| |
| void Message::PrintCurrentStackTrace(Isolate* isolate, std::ostream& out) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i_isolate->PrintCurrentStackTrace(out); |
| } |
| |
| // --- S t a c k T r a c e --- |
| |
| Local<StackFrame> StackTrace::GetFrame(Isolate* v8_isolate, |
| uint32_t index) const { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| i::Handle<i::StackFrameInfo> frame( |
| i::StackFrameInfo::cast(Utils::OpenHandle(this)->get(index)), isolate); |
| return Utils::StackFrameToLocal(frame); |
| } |
| |
| int StackTrace::GetFrameCount() const { |
| return Utils::OpenHandle(this)->length(); |
| } |
| |
| Local<StackTrace> StackTrace::CurrentStackTrace(Isolate* isolate, |
| int frame_limit, |
| StackTraceOptions options) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::FixedArray> stackTrace = |
| i_isolate->CaptureCurrentStackTrace(frame_limit, options); |
| return Utils::StackTraceToLocal(stackTrace); |
| } |
| |
| // --- S t a c k F r a m e --- |
| |
| int StackFrame::GetLineNumber() const { |
| return i::StackFrameInfo::GetLineNumber(Utils::OpenHandle(this)); |
| } |
| |
| int StackFrame::GetColumn() const { |
| return i::StackFrameInfo::GetColumnNumber(Utils::OpenHandle(this)); |
| } |
| |
| int StackFrame::GetScriptId() const { |
| return Utils::OpenHandle(this)->GetScriptId(); |
| } |
| |
| Local<String> StackFrame::GetScriptName() const { |
| auto self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| i::Handle<i::Object> name(self->GetScriptName(), isolate); |
| if (!name->IsString()) return {}; |
| return Local<String>::Cast(Utils::ToLocal(name)); |
| } |
| |
| Local<String> StackFrame::GetScriptNameOrSourceURL() const { |
| auto self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| i::Handle<i::Object> name_or_url(self->GetScriptNameOrSourceURL(), isolate); |
| if (!name_or_url->IsString()) return {}; |
| return Local<String>::Cast(Utils::ToLocal(name_or_url)); |
| } |
| |
| Local<String> StackFrame::GetScriptSource() const { |
| auto self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| i::Handle<i::Object> source(self->GetScriptSource(), isolate); |
| if (!source->IsString()) return {}; |
| return Local<String>::Cast(Utils::ToLocal(source)); |
| } |
| |
| Local<String> StackFrame::GetScriptSourceMappingURL() const { |
| auto self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| i::Handle<i::Object> sourceMappingURL(self->GetScriptSourceMappingURL(), |
| isolate); |
| if (!sourceMappingURL->IsString()) return {}; |
| return Local<String>::Cast(Utils::ToLocal(sourceMappingURL)); |
| } |
| |
| Local<String> StackFrame::GetFunctionName() const { |
| auto self = Utils::OpenHandle(this); |
| auto name = i::StackFrameInfo::GetFunctionName(self); |
| if (!name->IsString()) return {}; |
| return Local<String>::Cast(Utils::ToLocal(name)); |
| } |
| |
| bool StackFrame::IsEval() const { return Utils::OpenHandle(this)->IsEval(); } |
| |
| bool StackFrame::IsConstructor() const { |
| return Utils::OpenHandle(this)->IsConstructor(); |
| } |
| |
| bool StackFrame::IsWasm() const { |
| #if V8_ENABLE_WEBASSEMBLY |
| return Utils::OpenHandle(this)->IsWasm(); |
| #else |
| return false; |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| bool StackFrame::IsUserJavaScript() const { |
| return Utils::OpenHandle(this)->IsUserJavaScript(); |
| } |
| |
| // --- J S O N --- |
| |
| MaybeLocal<Value> JSON::Parse(Local<Context> context, |
| Local<String> json_string) { |
| PREPARE_FOR_EXECUTION(context, JSON, Parse, Value); |
| i::Handle<i::String> string = Utils::OpenHandle(*json_string); |
| i::Handle<i::String> source = i::String::Flatten(isolate, string); |
| i::Handle<i::Object> undefined = isolate->factory()->undefined_value(); |
| auto maybe = source->IsOneByteRepresentation() |
| ? i::JsonParser<uint8_t>::Parse(isolate, source, undefined) |
| : i::JsonParser<uint16_t>::Parse(isolate, source, undefined); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>(maybe, &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<String> JSON::Stringify(Local<Context> context, |
| Local<Value> json_object, |
| Local<String> gap) { |
| PREPARE_FOR_EXECUTION(context, JSON, Stringify, String); |
| i::Handle<i::Object> object = Utils::OpenHandle(*json_object); |
| i::Handle<i::Object> replacer = isolate->factory()->undefined_value(); |
| i::Handle<i::String> gap_string = gap.IsEmpty() |
| ? isolate->factory()->empty_string() |
| : Utils::OpenHandle(*gap); |
| i::Handle<i::Object> maybe; |
| has_pending_exception = |
| !i::JsonStringify(isolate, object, replacer, gap_string).ToHandle(&maybe); |
| RETURN_ON_FAILED_EXECUTION(String); |
| Local<String> result; |
| has_pending_exception = |
| !ToLocal<String>(i::Object::ToString(isolate, maybe), &result); |
| RETURN_ON_FAILED_EXECUTION(String); |
| RETURN_ESCAPED(result); |
| } |
| |
| // --- V a l u e S e r i a l i z a t i o n --- |
| |
| Maybe<bool> ValueSerializer::Delegate::WriteHostObject(Isolate* v8_isolate, |
| Local<Object> object) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| isolate->ScheduleThrow(*isolate->factory()->NewError( |
| isolate->error_function(), i::MessageTemplate::kDataCloneError, |
| Utils::OpenHandle(*object))); |
| return Nothing<bool>(); |
| } |
| |
| Maybe<uint32_t> ValueSerializer::Delegate::GetSharedArrayBufferId( |
| Isolate* v8_isolate, Local<SharedArrayBuffer> shared_array_buffer) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| isolate->ScheduleThrow(*isolate->factory()->NewError( |
| isolate->error_function(), i::MessageTemplate::kDataCloneError, |
| Utils::OpenHandle(*shared_array_buffer))); |
| return Nothing<uint32_t>(); |
| } |
| |
| Maybe<uint32_t> ValueSerializer::Delegate::GetWasmModuleTransferId( |
| Isolate* v8_isolate, Local<WasmModuleObject> module) { |
| return Nothing<uint32_t>(); |
| } |
| |
| void* ValueSerializer::Delegate::ReallocateBufferMemory(void* old_buffer, |
| size_t size, |
| size_t* actual_size) { |
| *actual_size = size; |
| return base::Realloc(old_buffer, size); |
| } |
| |
| void ValueSerializer::Delegate::FreeBufferMemory(void* buffer) { |
| return base::Free(buffer); |
| } |
| |
| struct ValueSerializer::PrivateData { |
| explicit PrivateData(i::Isolate* i, ValueSerializer::Delegate* delegate) |
| : isolate(i), serializer(i, delegate) {} |
| i::Isolate* isolate; |
| i::ValueSerializer serializer; |
| }; |
| |
| ValueSerializer::ValueSerializer(Isolate* isolate) |
| : ValueSerializer(isolate, nullptr) {} |
| |
| ValueSerializer::ValueSerializer(Isolate* isolate, Delegate* delegate) |
| : private_( |
| new PrivateData(reinterpret_cast<i::Isolate*>(isolate), delegate)) {} |
| |
| ValueSerializer::~ValueSerializer() { delete private_; } |
| |
| void ValueSerializer::WriteHeader() { private_->serializer.WriteHeader(); } |
| |
| void ValueSerializer::SetTreatArrayBufferViewsAsHostObjects(bool mode) { |
| private_->serializer.SetTreatArrayBufferViewsAsHostObjects(mode); |
| } |
| |
| Maybe<bool> ValueSerializer::WriteValue(Local<Context> context, |
| Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, ValueSerializer, WriteValue, Nothing<bool>(), |
| i::HandleScope); |
| i::Handle<i::Object> object = Utils::OpenHandle(*value); |
| Maybe<bool> result = private_->serializer.WriteObject(object); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| std::pair<uint8_t*, size_t> ValueSerializer::Release() { |
| return private_->serializer.Release(); |
| } |
| |
| void ValueSerializer::TransferArrayBuffer(uint32_t transfer_id, |
| Local<ArrayBuffer> array_buffer) { |
| private_->serializer.TransferArrayBuffer(transfer_id, |
| Utils::OpenHandle(*array_buffer)); |
| } |
| |
| void ValueSerializer::WriteUint32(uint32_t value) { |
| private_->serializer.WriteUint32(value); |
| } |
| |
| void ValueSerializer::WriteUint64(uint64_t value) { |
| private_->serializer.WriteUint64(value); |
| } |
| |
| void ValueSerializer::WriteDouble(double value) { |
| private_->serializer.WriteDouble(value); |
| } |
| |
| void ValueSerializer::WriteRawBytes(const void* source, size_t length) { |
| private_->serializer.WriteRawBytes(source, length); |
| } |
| |
| MaybeLocal<Object> ValueDeserializer::Delegate::ReadHostObject( |
| Isolate* v8_isolate) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| isolate->ScheduleThrow(*isolate->factory()->NewError( |
| isolate->error_function(), |
| i::MessageTemplate::kDataCloneDeserializationError)); |
| return MaybeLocal<Object>(); |
| } |
| |
| MaybeLocal<WasmModuleObject> ValueDeserializer::Delegate::GetWasmModuleFromId( |
| Isolate* v8_isolate, uint32_t id) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| isolate->ScheduleThrow(*isolate->factory()->NewError( |
| isolate->error_function(), |
| i::MessageTemplate::kDataCloneDeserializationError)); |
| return MaybeLocal<WasmModuleObject>(); |
| } |
| |
| MaybeLocal<SharedArrayBuffer> |
| ValueDeserializer::Delegate::GetSharedArrayBufferFromId(Isolate* v8_isolate, |
| uint32_t id) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| isolate->ScheduleThrow(*isolate->factory()->NewError( |
| isolate->error_function(), |
| i::MessageTemplate::kDataCloneDeserializationError)); |
| return MaybeLocal<SharedArrayBuffer>(); |
| } |
| |
| struct ValueDeserializer::PrivateData { |
| PrivateData(i::Isolate* i, base::Vector<const uint8_t> data, |
| Delegate* delegate) |
| : isolate(i), deserializer(i, data, delegate) {} |
| i::Isolate* isolate; |
| i::ValueDeserializer deserializer; |
| bool supports_legacy_wire_format = false; |
| }; |
| |
| ValueDeserializer::ValueDeserializer(Isolate* isolate, const uint8_t* data, |
| size_t size) |
| : ValueDeserializer(isolate, data, size, nullptr) {} |
| |
| ValueDeserializer::ValueDeserializer(Isolate* isolate, const uint8_t* data, |
| size_t size, Delegate* delegate) { |
| private_ = new PrivateData(reinterpret_cast<i::Isolate*>(isolate), |
| base::Vector<const uint8_t>(data, size), delegate); |
| } |
| |
| ValueDeserializer::~ValueDeserializer() { delete private_; } |
| |
| Maybe<bool> ValueDeserializer::ReadHeader(Local<Context> context) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8_NO_SCRIPT(isolate, context, ValueDeserializer, ReadHeader, |
| Nothing<bool>(), i::HandleScope); |
| |
| bool read_header = false; |
| has_pending_exception = !private_->deserializer.ReadHeader().To(&read_header); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| DCHECK(read_header); |
| |
| static const uint32_t kMinimumNonLegacyVersion = 13; |
| if (GetWireFormatVersion() < kMinimumNonLegacyVersion && |
| !private_->supports_legacy_wire_format) { |
| isolate->Throw(*isolate->factory()->NewError( |
| i::MessageTemplate::kDataCloneDeserializationVersionError)); |
| has_pending_exception = true; |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| } |
| |
| return Just(true); |
| } |
| |
| void ValueDeserializer::SetSupportsLegacyWireFormat( |
| bool supports_legacy_wire_format) { |
| private_->supports_legacy_wire_format = supports_legacy_wire_format; |
| } |
| |
| uint32_t ValueDeserializer::GetWireFormatVersion() const { |
| return private_->deserializer.GetWireFormatVersion(); |
| } |
| |
| MaybeLocal<Value> ValueDeserializer::ReadValue(Local<Context> context) { |
| PREPARE_FOR_EXECUTION(context, ValueDeserializer, ReadValue, Value); |
| i::MaybeHandle<i::Object> result; |
| if (GetWireFormatVersion() > 0) { |
| result = private_->deserializer.ReadObject(); |
| } else { |
| result = |
| private_->deserializer.ReadObjectUsingEntireBufferForLegacyFormat(); |
| } |
| Local<Value> value; |
| has_pending_exception = !ToLocal(result, &value); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(value); |
| } |
| |
| void ValueDeserializer::TransferArrayBuffer(uint32_t transfer_id, |
| Local<ArrayBuffer> array_buffer) { |
| private_->deserializer.TransferArrayBuffer(transfer_id, |
| Utils::OpenHandle(*array_buffer)); |
| } |
| |
| void ValueDeserializer::TransferSharedArrayBuffer( |
| uint32_t transfer_id, Local<SharedArrayBuffer> shared_array_buffer) { |
| private_->deserializer.TransferArrayBuffer( |
| transfer_id, Utils::OpenHandle(*shared_array_buffer)); |
| } |
| |
| bool ValueDeserializer::ReadUint32(uint32_t* value) { |
| return private_->deserializer.ReadUint32(value); |
| } |
| |
| bool ValueDeserializer::ReadUint64(uint64_t* value) { |
| return private_->deserializer.ReadUint64(value); |
| } |
| |
| bool ValueDeserializer::ReadDouble(double* value) { |
| return private_->deserializer.ReadDouble(value); |
| } |
| |
| bool ValueDeserializer::ReadRawBytes(size_t length, const void** data) { |
| return private_->deserializer.ReadRawBytes(length, data); |
| } |
| |
| // --- D a t a --- |
| |
| bool Value::FullIsUndefined() const { |
| i::Handle<i::Object> object = Utils::OpenHandle(this); |
| bool result = object->IsUndefined(); |
| DCHECK_EQ(result, QuickIsUndefined()); |
| return result; |
| } |
| |
| bool Value::FullIsNull() const { |
| i::Handle<i::Object> object = Utils::OpenHandle(this); |
| bool result = object->IsNull(); |
| DCHECK_EQ(result, QuickIsNull()); |
| return result; |
| } |
| |
| bool Value::IsTrue() const { |
| i::Object object = *Utils::OpenHandle(this); |
| if (object.IsSmi()) return false; |
| return object.IsTrue(); |
| } |
| |
| bool Value::IsFalse() const { |
| i::Object object = *Utils::OpenHandle(this); |
| if (object.IsSmi()) return false; |
| return object.IsFalse(); |
| } |
| |
| bool Value::IsFunction() const { return Utils::OpenHandle(this)->IsCallable(); } |
| |
| bool Value::IsName() const { return Utils::OpenHandle(this)->IsName(); } |
| |
| bool Value::FullIsString() const { |
| bool result = Utils::OpenHandle(this)->IsString(); |
| DCHECK_EQ(result, QuickIsString()); |
| return result; |
| } |
| |
| bool Value::IsSymbol() const { |
| return Utils::OpenHandle(this)->IsPublicSymbol(); |
| } |
| |
| bool Value::IsArray() const { return Utils::OpenHandle(this)->IsJSArray(); } |
| |
| bool Value::IsArrayBuffer() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (!obj.IsJSArrayBuffer()) return false; |
| return !i::JSArrayBuffer::cast(obj).is_shared(); |
| } |
| |
| bool Value::IsArrayBufferView() const { |
| return Utils::OpenHandle(this)->IsJSArrayBufferView(); |
| } |
| |
| bool Value::IsTypedArray() const { |
| return Utils::OpenHandle(this)->IsJSTypedArray(); |
| } |
| |
| #define VALUE_IS_TYPED_ARRAY(Type, typeName, TYPE, ctype) \ |
| bool Value::Is##Type##Array() const { \ |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); \ |
| return obj->IsJSTypedArray() && \ |
| i::JSTypedArray::cast(*obj).type() == i::kExternal##Type##Array; \ |
| } |
| |
| TYPED_ARRAYS(VALUE_IS_TYPED_ARRAY) |
| |
| #undef VALUE_IS_TYPED_ARRAY |
| |
| bool Value::IsDataView() const { |
| return Utils::OpenHandle(this)->IsJSDataView(); |
| } |
| |
| bool Value::IsSharedArrayBuffer() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (!obj.IsJSArrayBuffer()) return false; |
| return i::JSArrayBuffer::cast(obj).is_shared(); |
| } |
| |
| bool Value::IsObject() const { return Utils::OpenHandle(this)->IsJSReceiver(); } |
| |
| bool Value::IsNumber() const { return Utils::OpenHandle(this)->IsNumber(); } |
| |
| bool Value::IsBigInt() const { return Utils::OpenHandle(this)->IsBigInt(); } |
| |
| bool Value::IsProxy() const { return Utils::OpenHandle(this)->IsJSProxy(); } |
| |
| #define VALUE_IS_SPECIFIC_TYPE(Type, Check) \ |
| bool Value::Is##Type() const { \ |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); \ |
| return obj->Is##Check(); \ |
| } |
| |
| VALUE_IS_SPECIFIC_TYPE(ArgumentsObject, JSArgumentsObject) |
| VALUE_IS_SPECIFIC_TYPE(BigIntObject, BigIntWrapper) |
| VALUE_IS_SPECIFIC_TYPE(BooleanObject, BooleanWrapper) |
| VALUE_IS_SPECIFIC_TYPE(NumberObject, NumberWrapper) |
| VALUE_IS_SPECIFIC_TYPE(StringObject, StringWrapper) |
| VALUE_IS_SPECIFIC_TYPE(SymbolObject, SymbolWrapper) |
| VALUE_IS_SPECIFIC_TYPE(Date, JSDate) |
| VALUE_IS_SPECIFIC_TYPE(Map, JSMap) |
| VALUE_IS_SPECIFIC_TYPE(Set, JSSet) |
| #if V8_ENABLE_WEBASSEMBLY |
| VALUE_IS_SPECIFIC_TYPE(WasmMemoryObject, WasmMemoryObject) |
| VALUE_IS_SPECIFIC_TYPE(WasmModuleObject, WasmModuleObject) |
| #else |
| bool Value::IsWasmMemoryObject() const { return false; } |
| bool Value::IsWasmModuleObject() const { return false; } |
| #endif // V8_ENABLE_WEBASSEMBLY |
| VALUE_IS_SPECIFIC_TYPE(WeakMap, JSWeakMap) |
| VALUE_IS_SPECIFIC_TYPE(WeakSet, JSWeakSet) |
| |
| #undef VALUE_IS_SPECIFIC_TYPE |
| |
| bool Value::IsBoolean() const { return Utils::OpenHandle(this)->IsBoolean(); } |
| |
| bool Value::IsExternal() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (!obj.IsHeapObject()) return false; |
| i::HeapObject heap_obj = i::HeapObject::cast(obj); |
| // Check the instance type is JS_OBJECT (instance type of Externals) before |
| // attempting to get the Isolate since that guarantees the object is writable |
| // and GetIsolate will work. |
| if (heap_obj.map().instance_type() != i::JS_OBJECT_TYPE) return false; |
| i::Isolate* isolate = i::JSObject::cast(heap_obj).GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return heap_obj.IsExternal(isolate); |
| } |
| |
| bool Value::IsInt32() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (obj.IsSmi()) return true; |
| if (obj.IsNumber()) { |
| return i::IsInt32Double(obj.Number()); |
| } |
| return false; |
| } |
| |
| bool Value::IsUint32() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| if (obj->IsSmi()) return i::Smi::ToInt(*obj) >= 0; |
| if (obj->IsNumber()) { |
| double value = obj->Number(); |
| return !i::IsMinusZero(value) && value >= 0 && value <= i::kMaxUInt32 && |
| value == i::FastUI2D(i::FastD2UI(value)); |
| } |
| return false; |
| } |
| |
| bool Value::IsNativeError() const { |
| return Utils::OpenHandle(this)->IsJSError(); |
| } |
| |
| bool Value::IsRegExp() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| return obj->IsJSRegExp(); |
| } |
| |
| bool Value::IsAsyncFunction() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (!obj.IsJSFunction()) return false; |
| i::JSFunction func = i::JSFunction::cast(obj); |
| return i::IsAsyncFunction(func.shared().kind()); |
| } |
| |
| bool Value::IsGeneratorFunction() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (!obj.IsJSFunction()) return false; |
| i::JSFunction func = i::JSFunction::cast(obj); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(func.GetIsolate()); |
| return i::IsGeneratorFunction(func.shared().kind()); |
| } |
| |
| bool Value::IsGeneratorObject() const { |
| return Utils::OpenHandle(this)->IsJSGeneratorObject(); |
| } |
| |
| bool Value::IsMapIterator() const { |
| return Utils::OpenHandle(this)->IsJSMapIterator(); |
| } |
| |
| bool Value::IsSetIterator() const { |
| return Utils::OpenHandle(this)->IsJSSetIterator(); |
| } |
| |
| bool Value::IsPromise() const { return Utils::OpenHandle(this)->IsJSPromise(); } |
| |
| bool Value::IsModuleNamespaceObject() const { |
| return Utils::OpenHandle(this)->IsJSModuleNamespace(); |
| } |
| |
| MaybeLocal<String> Value::ToString(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsString()) return ToApiHandle<String>(obj); |
| PREPARE_FOR_EXECUTION(context, Object, ToString, String); |
| Local<String> result; |
| has_pending_exception = |
| !ToLocal<String>(i::Object::ToString(isolate, obj), &result); |
| RETURN_ON_FAILED_EXECUTION(String); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<String> Value::ToDetailString(Local<Context> context) const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| if (obj->IsString()) return ToApiHandle<String>(obj); |
| PREPARE_FOR_EXECUTION(context, Object, ToDetailString, String); |
| Local<String> result = |
| Utils::ToLocal(i::Object::NoSideEffectsToString(isolate, obj)); |
| RETURN_ON_FAILED_EXECUTION(String); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Object> Value::ToObject(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsJSReceiver()) return ToApiHandle<Object>(obj); |
| PREPARE_FOR_EXECUTION(context, Object, ToObject, Object); |
| Local<Object> result; |
| has_pending_exception = |
| !ToLocal<Object>(i::Object::ToObject(isolate, obj), &result); |
| RETURN_ON_FAILED_EXECUTION(Object); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<BigInt> Value::ToBigInt(Local<Context> context) const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| if (obj->IsBigInt()) return ToApiHandle<BigInt>(obj); |
| PREPARE_FOR_EXECUTION(context, Object, ToBigInt, BigInt); |
| Local<BigInt> result; |
| has_pending_exception = |
| !ToLocal<BigInt>(i::BigInt::FromObject(isolate, obj), &result); |
| RETURN_ON_FAILED_EXECUTION(BigInt); |
| RETURN_ESCAPED(result); |
| } |
| |
| bool Value::BooleanValue(Isolate* v8_isolate) const { |
| return Utils::OpenHandle(this)->BooleanValue( |
| reinterpret_cast<i::Isolate*>(v8_isolate)); |
| } |
| |
| Local<Boolean> Value::ToBoolean(Isolate* v8_isolate) const { |
| auto isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return ToApiHandle<Boolean>( |
| isolate->factory()->ToBoolean(BooleanValue(v8_isolate))); |
| } |
| |
| MaybeLocal<Number> Value::ToNumber(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsNumber()) return ToApiHandle<Number>(obj); |
| PREPARE_FOR_EXECUTION(context, Object, ToNumber, Number); |
| Local<Number> result; |
| has_pending_exception = |
| !ToLocal<Number>(i::Object::ToNumber(isolate, obj), &result); |
| RETURN_ON_FAILED_EXECUTION(Number); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Integer> Value::ToInteger(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsSmi()) return ToApiHandle<Integer>(obj); |
| PREPARE_FOR_EXECUTION(context, Object, ToInteger, Integer); |
| Local<Integer> result; |
| has_pending_exception = |
| !ToLocal<Integer>(i::Object::ToInteger(isolate, obj), &result); |
| RETURN_ON_FAILED_EXECUTION(Integer); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Int32> Value::ToInt32(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsSmi()) return ToApiHandle<Int32>(obj); |
| Local<Int32> result; |
| PREPARE_FOR_EXECUTION(context, Object, ToInt32, Int32); |
| has_pending_exception = |
| !ToLocal<Int32>(i::Object::ToInt32(isolate, obj), &result); |
| RETURN_ON_FAILED_EXECUTION(Int32); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Uint32> Value::ToUint32(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsSmi()) return ToApiHandle<Uint32>(obj); |
| Local<Uint32> result; |
| PREPARE_FOR_EXECUTION(context, Object, ToUint32, Uint32); |
| has_pending_exception = |
| !ToLocal<Uint32>(i::Object::ToUint32(isolate, obj), &result); |
| RETURN_ON_FAILED_EXECUTION(Uint32); |
| RETURN_ESCAPED(result); |
| } |
| |
| i::Address i::DecodeExternalPointerImpl(const i::Isolate* isolate, |
| i::ExternalPointer_t encoded_pointer, |
| ExternalPointerTag tag) { |
| return i::DecodeExternalPointer(isolate, encoded_pointer, tag); |
| } |
| |
| i::Isolate* i::IsolateFromNeverReadOnlySpaceObject(i::Address obj) { |
| return i::GetIsolateFromWritableObject(i::HeapObject::cast(i::Object(obj))); |
| } |
| |
| bool i::ShouldThrowOnError(i::Isolate* isolate) { |
| return i::GetShouldThrow(isolate, Nothing<i::ShouldThrow>()) == |
| i::ShouldThrow::kThrowOnError; |
| } |
| |
| bool i::CanHaveInternalField(int instance_type) { |
| return instance_type == i::Internals::kJSObjectType || |
| instance_type == i::Internals::kJSSpecialApiObjectType || |
| v8::internal::InstanceTypeChecker::IsJSApiObject( |
| static_cast<v8::internal::InstanceType>(instance_type)); |
| } |
| |
| void i::Internals::CheckInitializedImpl(v8::Isolate* external_isolate) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); |
| Utils::ApiCheck(isolate != nullptr && !isolate->IsDead(), |
| "v8::internal::Internals::CheckInitialized", |
| "Isolate is not initialized or V8 has died"); |
| } |
| |
| void v8::Value::CheckCast(Data* that) { |
| Utils::ApiCheck(that->IsValue(), "v8::Value::Cast", "Data is not a Value"); |
| } |
| |
| void External::CheckCast(v8::Value* that) { |
| Utils::ApiCheck(that->IsExternal(), "v8::External::Cast", |
| "Value is not an External"); |
| } |
| |
| void v8::Object::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSReceiver(), "v8::Object::Cast", |
| "Value is not an Object"); |
| } |
| |
| void v8::Function::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsCallable(), "v8::Function::Cast", |
| "Value is not a Function"); |
| } |
| |
| void v8::Boolean::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsBoolean(), "v8::Boolean::Cast", |
| "Value is not a Boolean"); |
| } |
| |
| void v8::Name::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsName(), "v8::Name::Cast", "Value is not a Name"); |
| } |
| |
| void v8::String::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsString(), "v8::String::Cast", "Value is not a String"); |
| } |
| |
| void v8::Symbol::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsSymbol(), "v8::Symbol::Cast", "Value is not a Symbol"); |
| } |
| |
| void v8::Private::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck( |
| obj->IsSymbol() && i::Handle<i::Symbol>::cast(obj)->is_private(), |
| "v8::Private::Cast", "Value is not a Private"); |
| } |
| |
| void v8::ModuleRequest::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsModuleRequest(), "v8::ModuleRequest::Cast", |
| "Value is not a ModuleRequest"); |
| } |
| |
| void v8::Module::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsModule(), "v8::Module::Cast", "Value is not a Module"); |
| } |
| |
| void v8::Number::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsNumber(), "v8::Number::Cast()", |
| "Value is not a Number"); |
| } |
| |
| void v8::Integer::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsNumber(), "v8::Integer::Cast", |
| "Value is not an Integer"); |
| } |
| |
| void v8::Int32::CheckCast(v8::Data* that) { |
| Utils::ApiCheck(Value::Cast(that)->IsInt32(), "v8::Int32::Cast", |
| "Value is not a 32-bit signed integer"); |
| } |
| |
| void v8::Uint32::CheckCast(v8::Data* that) { |
| Utils::ApiCheck(Value::Cast(that)->IsUint32(), "v8::Uint32::Cast", |
| "Value is not a 32-bit unsigned integer"); |
| } |
| |
| void v8::BigInt::CheckCast(v8::Data* that) { |
| Utils::ApiCheck(Value::Cast(that)->IsBigInt(), "v8::BigInt::Cast", |
| "Value is not a BigInt"); |
| } |
| |
| void v8::Context::CheckCast(v8::Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsContext(), "v8::Context::Cast", |
| "Value is not a Context"); |
| } |
| |
| void v8::Array::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSArray(), "v8::Array::Cast", "Value is not an Array"); |
| } |
| |
| void v8::Map::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSMap(), "v8::Map::Cast", "Value is not a Map"); |
| } |
| |
| void v8::Set::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSSet(), "v8_Set_Cast", "Value is not a Set"); |
| } |
| |
| void v8::Promise::CheckCast(Value* that) { |
| Utils::ApiCheck(that->IsPromise(), "v8::Promise::Cast", |
| "Value is not a Promise"); |
| } |
| |
| void v8::Promise::Resolver::CheckCast(Value* that) { |
| Utils::ApiCheck(that->IsPromise(), "v8::Promise::Resolver::Cast", |
| "Value is not a Promise::Resolver"); |
| } |
| |
| void v8::Proxy::CheckCast(Value* that) { |
| Utils::ApiCheck(that->IsProxy(), "v8::Proxy::Cast", "Value is not a Proxy"); |
| } |
| |
| void v8::WasmMemoryObject::CheckCast(Value* that) { |
| Utils::ApiCheck(that->IsWasmMemoryObject(), "v8::WasmMemoryObject::Cast", |
| "Value is not a WasmMemoryObject"); |
| } |
| |
| void v8::WasmModuleObject::CheckCast(Value* that) { |
| Utils::ApiCheck(that->IsWasmModuleObject(), "v8::WasmModuleObject::Cast", |
| "Value is not a WasmModuleObject"); |
| } |
| |
| v8::BackingStore::~BackingStore() { |
| auto i_this = reinterpret_cast<const i::BackingStore*>(this); |
| i_this->~BackingStore(); // manually call internal destructor |
| } |
| |
| void* v8::BackingStore::Data() const { |
| return reinterpret_cast<const i::BackingStore*>(this)->buffer_start(); |
| } |
| |
| size_t v8::BackingStore::ByteLength() const { |
| return reinterpret_cast<const i::BackingStore*>(this)->byte_length(); |
| } |
| |
| bool v8::BackingStore::IsShared() const { |
| return reinterpret_cast<const i::BackingStore*>(this)->is_shared(); |
| } |
| |
| // static |
| std::unique_ptr<v8::BackingStore> v8::BackingStore::Reallocate( |
| v8::Isolate* isolate, std::unique_ptr<v8::BackingStore> backing_store, |
| size_t byte_length) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, ArrayBuffer, BackingStore_Reallocate); |
| Utils::ApiCheck(byte_length <= i::JSArrayBuffer::kMaxByteLength, |
| "v8::BackingStore::Reallocate", "byte_lenght is too large"); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::BackingStore* i_backing_store = |
| reinterpret_cast<i::BackingStore*>(backing_store.get()); |
| if (!i_backing_store->Reallocate(i_isolate, byte_length)) { |
| i::FatalProcessOutOfMemory(i_isolate, "v8::BackingStore::Reallocate"); |
| } |
| return backing_store; |
| } |
| |
| // static |
| void v8::BackingStore::EmptyDeleter(void* data, size_t length, |
| void* deleter_data) { |
| DCHECK_NULL(deleter_data); |
| } |
| |
| std::shared_ptr<v8::BackingStore> v8::ArrayBuffer::GetBackingStore() { |
| i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this); |
| std::shared_ptr<i::BackingStore> backing_store = self->GetBackingStore(); |
| if (!backing_store) { |
| backing_store = |
| i::BackingStore::EmptyBackingStore(i::SharedFlag::kNotShared); |
| } |
| std::shared_ptr<i::BackingStoreBase> bs_base = backing_store; |
| return std::static_pointer_cast<v8::BackingStore>(bs_base); |
| } |
| |
| std::shared_ptr<v8::BackingStore> v8::SharedArrayBuffer::GetBackingStore() { |
| i::Handle<i::JSArrayBuffer> self = Utils::OpenHandle(this); |
| std::shared_ptr<i::BackingStore> backing_store = self->GetBackingStore(); |
| if (!backing_store) { |
| backing_store = i::BackingStore::EmptyBackingStore(i::SharedFlag::kShared); |
| } |
| std::shared_ptr<i::BackingStoreBase> bs_base = backing_store; |
| return std::static_pointer_cast<v8::BackingStore>(bs_base); |
| } |
| |
| void v8::ArrayBuffer::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck( |
| obj->IsJSArrayBuffer() && !i::JSArrayBuffer::cast(*obj).is_shared(), |
| "v8::ArrayBuffer::Cast()", "Value is not an ArrayBuffer"); |
| } |
| |
| void v8::ArrayBufferView::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSArrayBufferView(), "v8::ArrayBufferView::Cast()", |
| "Value is not an ArrayBufferView"); |
| } |
| |
| constexpr size_t v8::TypedArray::kMaxLength; |
| |
| void v8::TypedArray::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSTypedArray(), "v8::TypedArray::Cast()", |
| "Value is not a TypedArray"); |
| } |
| |
| #define CHECK_TYPED_ARRAY_CAST(Type, typeName, TYPE, ctype) \ |
| void v8::Type##Array::CheckCast(Value* that) { \ |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); \ |
| Utils::ApiCheck( \ |
| obj->IsJSTypedArray() && \ |
| i::JSTypedArray::cast(*obj).type() == i::kExternal##Type##Array, \ |
| "v8::" #Type "Array::Cast()", "Value is not a " #Type "Array"); \ |
| } |
| |
| TYPED_ARRAYS(CHECK_TYPED_ARRAY_CAST) |
| |
| #undef CHECK_TYPED_ARRAY_CAST |
| |
| void v8::DataView::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSDataView(), "v8::DataView::Cast()", |
| "Value is not a DataView"); |
| } |
| |
| void v8::SharedArrayBuffer::CheckCast(Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck( |
| obj->IsJSArrayBuffer() && i::JSArrayBuffer::cast(*obj).is_shared(), |
| "v8::SharedArrayBuffer::Cast()", "Value is not a SharedArrayBuffer"); |
| } |
| |
| void v8::Date::CheckCast(v8::Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSDate(), "v8::Date::Cast()", "Value is not a Date"); |
| } |
| |
| void v8::StringObject::CheckCast(v8::Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsStringWrapper(), "v8::StringObject::Cast()", |
| "Value is not a StringObject"); |
| } |
| |
| void v8::SymbolObject::CheckCast(v8::Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsSymbolWrapper(), "v8::SymbolObject::Cast()", |
| "Value is not a SymbolObject"); |
| } |
| |
| void v8::NumberObject::CheckCast(v8::Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsNumberWrapper(), "v8::NumberObject::Cast()", |
| "Value is not a NumberObject"); |
| } |
| |
| void v8::BigIntObject::CheckCast(v8::Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsBigIntWrapper(), "v8::BigIntObject::Cast()", |
| "Value is not a BigIntObject"); |
| } |
| |
| void v8::BooleanObject::CheckCast(v8::Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsBooleanWrapper(), "v8::BooleanObject::Cast()", |
| "Value is not a BooleanObject"); |
| } |
| |
| void v8::RegExp::CheckCast(v8::Value* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsJSRegExp(), "v8::RegExp::Cast()", |
| "Value is not a RegExp"); |
| } |
| |
| Maybe<double> Value::NumberValue(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsNumber()) return Just(obj->Number()); |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Value, NumberValue, Nothing<double>(), |
| i::HandleScope); |
| i::Handle<i::Object> num; |
| has_pending_exception = !i::Object::ToNumber(isolate, obj).ToHandle(&num); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(double); |
| return Just(num->Number()); |
| } |
| |
| Maybe<int64_t> Value::IntegerValue(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsNumber()) { |
| return Just(NumberToInt64(*obj)); |
| } |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Value, IntegerValue, Nothing<int64_t>(), |
| i::HandleScope); |
| i::Handle<i::Object> num; |
| has_pending_exception = !i::Object::ToInteger(isolate, obj).ToHandle(&num); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(int64_t); |
| return Just(NumberToInt64(*num)); |
| } |
| |
| Maybe<int32_t> Value::Int32Value(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsNumber()) return Just(NumberToInt32(*obj)); |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Value, Int32Value, Nothing<int32_t>(), |
| i::HandleScope); |
| i::Handle<i::Object> num; |
| has_pending_exception = !i::Object::ToInt32(isolate, obj).ToHandle(&num); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(int32_t); |
| return Just(num->IsSmi() ? i::Smi::ToInt(*num) |
| : static_cast<int32_t>(num->Number())); |
| } |
| |
| Maybe<uint32_t> Value::Uint32Value(Local<Context> context) const { |
| auto obj = Utils::OpenHandle(this); |
| if (obj->IsNumber()) return Just(NumberToUint32(*obj)); |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Value, Uint32Value, Nothing<uint32_t>(), |
| i::HandleScope); |
| i::Handle<i::Object> num; |
| has_pending_exception = !i::Object::ToUint32(isolate, obj).ToHandle(&num); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(uint32_t); |
| return Just(num->IsSmi() ? static_cast<uint32_t>(i::Smi::ToInt(*num)) |
| : static_cast<uint32_t>(num->Number())); |
| } |
| |
| MaybeLocal<Uint32> Value::ToArrayIndex(Local<Context> context) const { |
| auto self = Utils::OpenHandle(this); |
| if (self->IsSmi()) { |
| if (i::Smi::ToInt(*self) >= 0) return Utils::Uint32ToLocal(self); |
| return Local<Uint32>(); |
| } |
| PREPARE_FOR_EXECUTION(context, Object, ToArrayIndex, Uint32); |
| i::Handle<i::Object> string_obj; |
| has_pending_exception = |
| !i::Object::ToString(isolate, self).ToHandle(&string_obj); |
| RETURN_ON_FAILED_EXECUTION(Uint32); |
| i::Handle<i::String> str = i::Handle<i::String>::cast(string_obj); |
| uint32_t index; |
| if (str->AsArrayIndex(&index)) { |
| i::Handle<i::Object> value; |
| if (index <= static_cast<uint32_t>(i::Smi::kMaxValue)) { |
| value = i::Handle<i::Object>(i::Smi::FromInt(index), isolate); |
| } else { |
| value = isolate->factory()->NewNumber(index); |
| } |
| RETURN_ESCAPED(Utils::Uint32ToLocal(value)); |
| } |
| return Local<Uint32>(); |
| } |
| |
| Maybe<bool> Value::Equals(Local<Context> context, Local<Value> that) const { |
| i::Isolate* isolate = Utils::OpenHandle(*context)->GetIsolate(); |
| ENTER_V8(isolate, context, Value, Equals, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto other = Utils::OpenHandle(*that); |
| Maybe<bool> result = i::Object::Equals(isolate, self, other); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| bool Value::StrictEquals(Local<Value> that) const { |
| auto self = Utils::OpenHandle(this); |
| auto other = Utils::OpenHandle(*that); |
| return self->StrictEquals(*other); |
| } |
| |
| bool Value::SameValue(Local<Value> that) const { |
| auto self = Utils::OpenHandle(this); |
| auto other = Utils::OpenHandle(*that); |
| return self->SameValue(*other); |
| } |
| |
| Local<String> Value::TypeOf(v8::Isolate* external_isolate) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| LOG_API(isolate, Value, TypeOf); |
| return Utils::ToLocal(i::Object::TypeOf(isolate, Utils::OpenHandle(this))); |
| } |
| |
| Maybe<bool> Value::InstanceOf(v8::Local<v8::Context> context, |
| v8::Local<v8::Object> object) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Value, InstanceOf, Nothing<bool>(), |
| i::HandleScope); |
| auto left = Utils::OpenHandle(this); |
| auto right = Utils::OpenHandle(*object); |
| i::Handle<i::Object> result; |
| has_pending_exception = |
| !i::Object::InstanceOf(isolate, left, right).ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(result->IsTrue(isolate)); |
| } |
| |
| Maybe<bool> v8::Object::Set(v8::Local<v8::Context> context, |
| v8::Local<Value> key, v8::Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, Set, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto key_obj = Utils::OpenHandle(*key); |
| auto value_obj = Utils::OpenHandle(*value); |
| has_pending_exception = |
| i::Runtime::SetObjectProperty(isolate, self, key_obj, value_obj, |
| i::StoreOrigin::kMaybeKeyed, |
| Just(i::ShouldThrow::kDontThrow)) |
| .is_null(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| Maybe<bool> v8::Object::Set(v8::Local<v8::Context> context, uint32_t index, |
| v8::Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, Set, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto value_obj = Utils::OpenHandle(*value); |
| has_pending_exception = i::Object::SetElement(isolate, self, index, value_obj, |
| i::ShouldThrow::kDontThrow) |
| .is_null(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| Maybe<bool> v8::Object::CreateDataProperty(v8::Local<v8::Context> context, |
| v8::Local<Name> key, |
| v8::Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); |
| i::Handle<i::Object> value_obj = Utils::OpenHandle(*value); |
| |
| i::PropertyKey lookup_key(isolate, key_obj); |
| i::LookupIterator it(isolate, self, lookup_key, i::LookupIterator::OWN); |
| if (self->IsJSProxy()) { |
| ENTER_V8(isolate, context, Object, CreateDataProperty, Nothing<bool>(), |
| i::HandleScope); |
| Maybe<bool> result = |
| i::JSReceiver::CreateDataProperty(&it, value_obj, Just(i::kDontThrow)); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } else { |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, CreateDataProperty, |
| Nothing<bool>(), i::HandleScope); |
| Maybe<bool> result = |
| i::JSObject::CreateDataProperty(&it, value_obj, Just(i::kDontThrow)); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| } |
| |
| Maybe<bool> v8::Object::CreateDataProperty(v8::Local<v8::Context> context, |
| uint32_t index, |
| v8::Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| i::Handle<i::Object> value_obj = Utils::OpenHandle(*value); |
| |
| i::LookupIterator it(isolate, self, index, self, i::LookupIterator::OWN); |
| if (self->IsJSProxy()) { |
| ENTER_V8(isolate, context, Object, CreateDataProperty, Nothing<bool>(), |
| i::HandleScope); |
| Maybe<bool> result = |
| i::JSReceiver::CreateDataProperty(&it, value_obj, Just(i::kDontThrow)); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } else { |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, CreateDataProperty, |
| Nothing<bool>(), i::HandleScope); |
| Maybe<bool> result = |
| i::JSObject::CreateDataProperty(&it, value_obj, Just(i::kDontThrow)); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| } |
| |
| struct v8::PropertyDescriptor::PrivateData { |
| PrivateData() : desc() {} |
| i::PropertyDescriptor desc; |
| }; |
| |
| v8::PropertyDescriptor::PropertyDescriptor() : private_(new PrivateData()) {} |
| |
| // DataDescriptor |
| v8::PropertyDescriptor::PropertyDescriptor(v8::Local<v8::Value> value) |
| : private_(new PrivateData()) { |
| private_->desc.set_value(Utils::OpenHandle(*value, true)); |
| } |
| |
| // DataDescriptor with writable field |
| v8::PropertyDescriptor::PropertyDescriptor(v8::Local<v8::Value> value, |
| bool writable) |
| : private_(new PrivateData()) { |
| private_->desc.set_value(Utils::OpenHandle(*value, true)); |
| private_->desc.set_writable(writable); |
| } |
| |
| // AccessorDescriptor |
| v8::PropertyDescriptor::PropertyDescriptor(v8::Local<v8::Value> get, |
| v8::Local<v8::Value> set) |
| : private_(new PrivateData()) { |
| DCHECK(get.IsEmpty() || get->IsUndefined() || get->IsFunction()); |
| DCHECK(set.IsEmpty() || set->IsUndefined() || set->IsFunction()); |
| private_->desc.set_get(Utils::OpenHandle(*get, true)); |
| private_->desc.set_set(Utils::OpenHandle(*set, true)); |
| } |
| |
| v8::PropertyDescriptor::~PropertyDescriptor() { delete private_; } |
| |
| v8::Local<Value> v8::PropertyDescriptor::value() const { |
| DCHECK(private_->desc.has_value()); |
| return Utils::ToLocal(private_->desc.value()); |
| } |
| |
| v8::Local<Value> v8::PropertyDescriptor::get() const { |
| DCHECK(private_->desc.has_get()); |
| return Utils::ToLocal(private_->desc.get()); |
| } |
| |
| v8::Local<Value> v8::PropertyDescriptor::set() const { |
| DCHECK(private_->desc.has_set()); |
| return Utils::ToLocal(private_->desc.set()); |
| } |
| |
| bool v8::PropertyDescriptor::has_value() const { |
| return private_->desc.has_value(); |
| } |
| bool v8::PropertyDescriptor::has_get() const { |
| return private_->desc.has_get(); |
| } |
| bool v8::PropertyDescriptor::has_set() const { |
| return private_->desc.has_set(); |
| } |
| |
| bool v8::PropertyDescriptor::writable() const { |
| DCHECK(private_->desc.has_writable()); |
| return private_->desc.writable(); |
| } |
| |
| bool v8::PropertyDescriptor::has_writable() const { |
| return private_->desc.has_writable(); |
| } |
| |
| void v8::PropertyDescriptor::set_enumerable(bool enumerable) { |
| private_->desc.set_enumerable(enumerable); |
| } |
| |
| bool v8::PropertyDescriptor::enumerable() const { |
| DCHECK(private_->desc.has_enumerable()); |
| return private_->desc.enumerable(); |
| } |
| |
| bool v8::PropertyDescriptor::has_enumerable() const { |
| return private_->desc.has_enumerable(); |
| } |
| |
| void v8::PropertyDescriptor::set_configurable(bool configurable) { |
| private_->desc.set_configurable(configurable); |
| } |
| |
| bool v8::PropertyDescriptor::configurable() const { |
| DCHECK(private_->desc.has_configurable()); |
| return private_->desc.configurable(); |
| } |
| |
| bool v8::PropertyDescriptor::has_configurable() const { |
| return private_->desc.has_configurable(); |
| } |
| |
| Maybe<bool> v8::Object::DefineOwnProperty(v8::Local<v8::Context> context, |
| v8::Local<Name> key, |
| v8::Local<Value> value, |
| v8::PropertyAttribute attributes) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); |
| i::Handle<i::Object> value_obj = Utils::OpenHandle(*value); |
| |
| i::PropertyDescriptor desc; |
| desc.set_writable(!(attributes & v8::ReadOnly)); |
| desc.set_enumerable(!(attributes & v8::DontEnum)); |
| desc.set_configurable(!(attributes & v8::DontDelete)); |
| desc.set_value(value_obj); |
| |
| if (self->IsJSProxy()) { |
| ENTER_V8(isolate, context, Object, DefineOwnProperty, Nothing<bool>(), |
| i::HandleScope); |
| Maybe<bool> success = i::JSReceiver::DefineOwnProperty( |
| isolate, self, key_obj, &desc, Just(i::kDontThrow)); |
| // Even though we said kDontThrow, there might be accessors that do throw. |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return success; |
| } else { |
| // If it's not a JSProxy, i::JSReceiver::DefineOwnProperty should never run |
| // a script. |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, DefineOwnProperty, |
| Nothing<bool>(), i::HandleScope); |
| Maybe<bool> success = i::JSReceiver::DefineOwnProperty( |
| isolate, self, key_obj, &desc, Just(i::kDontThrow)); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return success; |
| } |
| } |
| |
| Maybe<bool> v8::Object::DefineProperty(v8::Local<v8::Context> context, |
| v8::Local<Name> key, |
| PropertyDescriptor& descriptor) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, DefineOwnProperty, Nothing<bool>(), |
| i::HandleScope); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); |
| |
| Maybe<bool> success = i::JSReceiver::DefineOwnProperty( |
| isolate, self, key_obj, &descriptor.get_private()->desc, |
| Just(i::kDontThrow)); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return success; |
| } |
| |
| Maybe<bool> v8::Object::SetPrivate(Local<Context> context, Local<Private> key, |
| Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, SetPrivate, Nothing<bool>(), |
| i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto key_obj = Utils::OpenHandle(reinterpret_cast<Name*>(*key)); |
| auto value_obj = Utils::OpenHandle(*value); |
| if (self->IsJSProxy()) { |
| i::PropertyDescriptor desc; |
| desc.set_writable(true); |
| desc.set_enumerable(false); |
| desc.set_configurable(true); |
| desc.set_value(value_obj); |
| return i::JSProxy::SetPrivateSymbol( |
| isolate, i::Handle<i::JSProxy>::cast(self), |
| i::Handle<i::Symbol>::cast(key_obj), &desc, Just(i::kDontThrow)); |
| } |
| auto js_object = i::Handle<i::JSObject>::cast(self); |
| i::LookupIterator it(isolate, js_object, key_obj, js_object); |
| has_pending_exception = i::JSObject::DefineOwnPropertyIgnoreAttributes( |
| &it, value_obj, i::DONT_ENUM) |
| .is_null(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| MaybeLocal<Value> v8::Object::Get(Local<v8::Context> context, |
| Local<Value> key) { |
| PREPARE_FOR_EXECUTION(context, Object, Get, Value); |
| auto self = Utils::OpenHandle(this); |
| auto key_obj = Utils::OpenHandle(*key); |
| i::Handle<i::Object> result; |
| has_pending_exception = |
| !i::Runtime::GetObjectProperty(isolate, self, key_obj).ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(Utils::ToLocal(result)); |
| } |
| |
| MaybeLocal<Value> v8::Object::Get(Local<Context> context, uint32_t index) { |
| PREPARE_FOR_EXECUTION(context, Object, Get, Value); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> result; |
| has_pending_exception = |
| !i::JSReceiver::GetElement(isolate, self, index).ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(Utils::ToLocal(result)); |
| } |
| |
| MaybeLocal<Value> v8::Object::GetPrivate(Local<Context> context, |
| Local<Private> key) { |
| return Get(context, Local<Value>(reinterpret_cast<Value*>(*key))); |
| } |
| |
| Maybe<PropertyAttribute> v8::Object::GetPropertyAttributes( |
| Local<Context> context, Local<Value> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, GetPropertyAttributes, |
| Nothing<PropertyAttribute>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto key_obj = Utils::OpenHandle(*key); |
| if (!key_obj->IsName()) { |
| has_pending_exception = |
| !i::Object::ToString(isolate, key_obj).ToHandle(&key_obj); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); |
| } |
| auto key_name = i::Handle<i::Name>::cast(key_obj); |
| auto result = i::JSReceiver::GetPropertyAttributes(self, key_name); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); |
| if (result.FromJust() == i::ABSENT) { |
| return Just(static_cast<PropertyAttribute>(i::NONE)); |
| } |
| return Just(static_cast<PropertyAttribute>(result.FromJust())); |
| } |
| |
| MaybeLocal<Value> v8::Object::GetOwnPropertyDescriptor(Local<Context> context, |
| Local<Name> key) { |
| PREPARE_FOR_EXECUTION(context, Object, GetOwnPropertyDescriptor, Value); |
| i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); |
| i::Handle<i::Name> key_name = Utils::OpenHandle(*key); |
| |
| i::PropertyDescriptor desc; |
| Maybe<bool> found = |
| i::JSReceiver::GetOwnPropertyDescriptor(isolate, obj, key_name, &desc); |
| has_pending_exception = found.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| if (!found.FromJust()) { |
| return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| RETURN_ESCAPED(Utils::ToLocal(desc.ToObject(isolate))); |
| } |
| |
| Local<Value> v8::Object::GetPrototype() { |
| auto self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| i::PrototypeIterator iter(isolate, self); |
| return Utils::ToLocal(i::PrototypeIterator::GetCurrent(iter)); |
| } |
| |
| Maybe<bool> v8::Object::SetPrototype(Local<Context> context, |
| Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| auto self = Utils::OpenHandle(this); |
| auto value_obj = Utils::OpenHandle(*value); |
| if (self->IsJSProxy()) { |
| ENTER_V8(isolate, context, Object, SetPrototype, Nothing<bool>(), |
| i::HandleScope); |
| // We do not allow exceptions thrown while setting the prototype |
| // to propagate outside. |
| TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate)); |
| auto result = i::JSProxy::SetPrototype(i::Handle<i::JSProxy>::cast(self), |
| value_obj, false, i::kThrowOnError); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| } else { |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| auto result = i::JSObject::SetPrototype(i::Handle<i::JSObject>::cast(self), |
| value_obj, false, i::kThrowOnError); |
| if (result.IsNothing()) { |
| isolate->clear_pending_exception(); |
| return Nothing<bool>(); |
| } |
| } |
| return Just(true); |
| } |
| |
| Local<Object> v8::Object::FindInstanceInPrototypeChain( |
| v8::Local<FunctionTemplate> tmpl) { |
| auto self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| i::PrototypeIterator iter(isolate, *self, i::kStartAtReceiver); |
| auto tmpl_info = *Utils::OpenHandle(*tmpl); |
| while (!tmpl_info.IsTemplateFor(iter.GetCurrent<i::JSObject>())) { |
| iter.Advance(); |
| if (iter.IsAtEnd()) return Local<Object>(); |
| if (!iter.GetCurrent().IsJSObject()) return Local<Object>(); |
| } |
| // IsTemplateFor() ensures that iter.GetCurrent() can't be a Proxy here. |
| return Utils::ToLocal(i::handle(iter.GetCurrent<i::JSObject>(), isolate)); |
| } |
| |
| MaybeLocal<Array> v8::Object::GetPropertyNames(Local<Context> context) { |
| return GetPropertyNames( |
| context, v8::KeyCollectionMode::kIncludePrototypes, |
| static_cast<v8::PropertyFilter>(ONLY_ENUMERABLE | SKIP_SYMBOLS), |
| v8::IndexFilter::kIncludeIndices); |
| } |
| |
| MaybeLocal<Array> v8::Object::GetPropertyNames( |
| Local<Context> context, KeyCollectionMode mode, |
| PropertyFilter property_filter, IndexFilter index_filter, |
| KeyConversionMode key_conversion) { |
| PREPARE_FOR_EXECUTION(context, Object, GetPropertyNames, Array); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::FixedArray> value; |
| i::KeyAccumulator accumulator( |
| isolate, static_cast<i::KeyCollectionMode>(mode), |
| static_cast<i::PropertyFilter>(property_filter)); |
| accumulator.set_skip_indices(index_filter == IndexFilter::kSkipIndices); |
| has_pending_exception = accumulator.CollectKeys(self, self).IsNothing(); |
| RETURN_ON_FAILED_EXECUTION(Array); |
| value = |
| accumulator.GetKeys(static_cast<i::GetKeysConversion>(key_conversion)); |
| DCHECK(self->map().EnumLength() == i::kInvalidEnumCacheSentinel || |
| self->map().EnumLength() == 0 || |
| self->map().instance_descriptors(isolate).enum_cache().keys() != |
| *value); |
| auto result = isolate->factory()->NewJSArrayWithElements(value); |
| RETURN_ESCAPED(Utils::ToLocal(result)); |
| } |
| |
| MaybeLocal<Array> v8::Object::GetOwnPropertyNames(Local<Context> context) { |
| return GetOwnPropertyNames( |
| context, static_cast<v8::PropertyFilter>(ONLY_ENUMERABLE | SKIP_SYMBOLS)); |
| } |
| |
| MaybeLocal<Array> v8::Object::GetOwnPropertyNames( |
| Local<Context> context, PropertyFilter filter, |
| KeyConversionMode key_conversion) { |
| return GetPropertyNames(context, KeyCollectionMode::kOwnOnly, filter, |
| v8::IndexFilter::kIncludeIndices, key_conversion); |
| } |
| |
| MaybeLocal<String> v8::Object::ObjectProtoToString(Local<Context> context) { |
| PREPARE_FOR_EXECUTION(context, Object, ObjectProtoToString, String); |
| auto self = Utils::OpenHandle(this); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>( |
| i::Execution::CallBuiltin(isolate, isolate->object_to_string(), self, 0, |
| nullptr), |
| &result); |
| RETURN_ON_FAILED_EXECUTION(String); |
| RETURN_ESCAPED(Local<String>::Cast(result)); |
| } |
| |
| Local<String> v8::Object::GetConstructorName() { |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::String> name = i::JSReceiver::GetConstructorName(self); |
| return Utils::ToLocal(name); |
| } |
| |
| Maybe<bool> v8::Object::SetIntegrityLevel(Local<Context> context, |
| IntegrityLevel level) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, SetIntegrityLevel, Nothing<bool>(), |
| i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| i::JSReceiver::IntegrityLevel i_level = |
| level == IntegrityLevel::kFrozen ? i::FROZEN : i::SEALED; |
| Maybe<bool> result = |
| i::JSReceiver::SetIntegrityLevel(self, i_level, i::kThrowOnError); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| Maybe<bool> v8::Object::Delete(Local<Context> context, Local<Value> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| auto self = Utils::OpenHandle(this); |
| auto key_obj = Utils::OpenHandle(*key); |
| if (self->IsJSProxy()) { |
| ENTER_V8(isolate, context, Object, Delete, Nothing<bool>(), i::HandleScope); |
| Maybe<bool> result = i::Runtime::DeleteObjectProperty( |
| isolate, self, key_obj, i::LanguageMode::kSloppy); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } else { |
| // If it's not a JSProxy, i::Runtime::DeleteObjectProperty should never run |
| // a script. |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, Delete, Nothing<bool>(), |
| i::HandleScope); |
| Maybe<bool> result = i::Runtime::DeleteObjectProperty( |
| isolate, self, key_obj, i::LanguageMode::kSloppy); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| } |
| |
| Maybe<bool> v8::Object::DeletePrivate(Local<Context> context, |
| Local<Private> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| // In case of private symbols, i::Runtime::DeleteObjectProperty does not run |
| // any author script. |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, Delete, Nothing<bool>(), |
| i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto key_obj = Utils::OpenHandle(*key); |
| Maybe<bool> result = i::Runtime::DeleteObjectProperty( |
| isolate, self, key_obj, i::LanguageMode::kSloppy); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| Maybe<bool> v8::Object::Has(Local<Context> context, Local<Value> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, Has, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto key_obj = Utils::OpenHandle(*key); |
| Maybe<bool> maybe = Nothing<bool>(); |
| // Check if the given key is an array index. |
| uint32_t index = 0; |
| if (key_obj->ToArrayIndex(&index)) { |
| maybe = i::JSReceiver::HasElement(self, index); |
| } else { |
| // Convert the key to a name - possibly by calling back into JavaScript. |
| i::Handle<i::Name> name; |
| if (i::Object::ToName(isolate, key_obj).ToHandle(&name)) { |
| maybe = i::JSReceiver::HasProperty(self, name); |
| } |
| } |
| has_pending_exception = maybe.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return maybe; |
| } |
| |
| Maybe<bool> v8::Object::HasPrivate(Local<Context> context, Local<Private> key) { |
| return HasOwnProperty(context, Local<Name>(reinterpret_cast<Name*>(*key))); |
| } |
| |
| Maybe<bool> v8::Object::Delete(Local<Context> context, uint32_t index) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, Delete, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| Maybe<bool> result = i::JSReceiver::DeleteElement(self, index); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| Maybe<bool> v8::Object::Has(Local<Context> context, uint32_t index) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, Has, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto maybe = i::JSReceiver::HasElement(self, index); |
| has_pending_exception = maybe.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return maybe; |
| } |
| |
| template <typename Getter, typename Setter, typename Data> |
| static Maybe<bool> ObjectSetAccessor( |
| Local<Context> context, Object* self, Local<Name> name, Getter getter, |
| Setter setter, Data data, AccessControl settings, |
| PropertyAttribute attributes, bool is_special_data_property, |
| bool replace_on_access, SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, SetAccessor, Nothing<bool>(), |
| i::HandleScope); |
| if (!Utils::OpenHandle(self)->IsJSObject()) return Just(false); |
| i::Handle<i::JSObject> obj = |
| i::Handle<i::JSObject>::cast(Utils::OpenHandle(self)); |
| v8::Local<AccessorSignature> signature; |
| i::Handle<i::AccessorInfo> info = |
| MakeAccessorInfo(isolate, name, getter, setter, data, settings, signature, |
| is_special_data_property, replace_on_access); |
| info->set_getter_side_effect_type(getter_side_effect_type); |
| info->set_setter_side_effect_type(setter_side_effect_type); |
| if (info.is_null()) return Nothing<bool>(); |
| bool fast = obj->HasFastProperties(); |
| i::Handle<i::Object> result; |
| |
| i::Handle<i::Name> accessor_name(info->name(), isolate); |
| i::PropertyAttributes attrs = static_cast<i::PropertyAttributes>(attributes); |
| has_pending_exception = |
| !i::JSObject::SetAccessor(obj, accessor_name, info, attrs) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| if (result->IsUndefined(isolate)) return Just(false); |
| if (fast) { |
| i::JSObject::MigrateSlowToFast(obj, 0, "APISetAccessor"); |
| } |
| return Just(true); |
| } |
| |
| Maybe<bool> Object::SetAccessor(Local<Context> context, Local<Name> name, |
| AccessorNameGetterCallback getter, |
| AccessorNameSetterCallback setter, |
| MaybeLocal<Value> data, AccessControl settings, |
| PropertyAttribute attribute, |
| SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| return ObjectSetAccessor(context, this, name, getter, setter, |
| data.FromMaybe(Local<Value>()), settings, attribute, |
| i::FLAG_disable_old_api_accessors, false, |
| getter_side_effect_type, setter_side_effect_type); |
| } |
| |
| void Object::SetAccessorProperty(Local<Name> name, Local<Function> getter, |
| Local<Function> setter, |
| PropertyAttribute attribute, |
| AccessControl settings) { |
| // TODO(verwaest): Remove |settings|. |
| DCHECK_EQ(v8::DEFAULT, settings); |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| if (!self->IsJSObject()) return; |
| i::Handle<i::Object> getter_i = v8::Utils::OpenHandle(*getter); |
| i::Handle<i::Object> setter_i = v8::Utils::OpenHandle(*setter, true); |
| if (setter_i.is_null()) setter_i = isolate->factory()->null_value(); |
| i::JSObject::DefineAccessor(i::Handle<i::JSObject>::cast(self), |
| v8::Utils::OpenHandle(*name), getter_i, setter_i, |
| static_cast<i::PropertyAttributes>(attribute)); |
| } |
| |
| Maybe<bool> Object::SetNativeDataProperty( |
| v8::Local<v8::Context> context, v8::Local<Name> name, |
| AccessorNameGetterCallback getter, AccessorNameSetterCallback setter, |
| v8::Local<Value> data, PropertyAttribute attributes, |
| SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| return ObjectSetAccessor(context, this, name, getter, setter, data, DEFAULT, |
| attributes, true, false, getter_side_effect_type, |
| setter_side_effect_type); |
| } |
| |
| Maybe<bool> Object::SetLazyDataProperty( |
| v8::Local<v8::Context> context, v8::Local<Name> name, |
| AccessorNameGetterCallback getter, v8::Local<Value> data, |
| PropertyAttribute attributes, SideEffectType getter_side_effect_type, |
| SideEffectType setter_side_effect_type) { |
| return ObjectSetAccessor(context, this, name, getter, |
| static_cast<AccessorNameSetterCallback>(nullptr), |
| data, DEFAULT, attributes, true, true, |
| getter_side_effect_type, setter_side_effect_type); |
| } |
| |
| Maybe<bool> v8::Object::HasOwnProperty(Local<Context> context, |
| Local<Name> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, HasOwnProperty, Nothing<bool>(), |
| i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto key_val = Utils::OpenHandle(*key); |
| auto result = i::JSReceiver::HasOwnProperty(self, key_val); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| Maybe<bool> v8::Object::HasOwnProperty(Local<Context> context, uint32_t index) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, HasOwnProperty, Nothing<bool>(), |
| i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto result = i::JSReceiver::HasOwnProperty(self, index); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| Maybe<bool> v8::Object::HasRealNamedProperty(Local<Context> context, |
| Local<Name> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, HasRealNamedProperty, |
| Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSObject()) return Just(false); |
| auto key_val = Utils::OpenHandle(*key); |
| auto result = i::JSObject::HasRealNamedProperty( |
| i::Handle<i::JSObject>::cast(self), key_val); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| Maybe<bool> v8::Object::HasRealIndexedProperty(Local<Context> context, |
| uint32_t index) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, HasRealIndexedProperty, |
| Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSObject()) return Just(false); |
| auto result = i::JSObject::HasRealElementProperty( |
| i::Handle<i::JSObject>::cast(self), index); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| Maybe<bool> v8::Object::HasRealNamedCallbackProperty(Local<Context> context, |
| Local<Name> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8_NO_SCRIPT(isolate, context, Object, HasRealNamedCallbackProperty, |
| Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSObject()) return Just(false); |
| auto key_val = Utils::OpenHandle(*key); |
| auto result = i::JSObject::HasRealNamedCallbackProperty( |
| i::Handle<i::JSObject>::cast(self), key_val); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return result; |
| } |
| |
| bool v8::Object::HasNamedLookupInterceptor() const { |
| auto self = *Utils::OpenHandle(this); |
| if (self.IsJSObject()) return false; |
| return i::JSObject::cast(self).HasNamedInterceptor(); |
| } |
| |
| bool v8::Object::HasIndexedLookupInterceptor() const { |
| auto self = *Utils::OpenHandle(this); |
| if (self.IsJSObject()) return false; |
| return i::JSObject::cast(self).HasIndexedInterceptor(); |
| } |
| |
| MaybeLocal<Value> v8::Object::GetRealNamedPropertyInPrototypeChain( |
| Local<Context> context, Local<Name> key) { |
| PREPARE_FOR_EXECUTION(context, Object, GetRealNamedPropertyInPrototypeChain, |
| Value); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| if (!self->IsJSObject()) return MaybeLocal<Value>(); |
| i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); |
| i::PrototypeIterator iter(isolate, self); |
| if (iter.IsAtEnd()) return MaybeLocal<Value>(); |
| i::Handle<i::JSReceiver> proto = |
| i::PrototypeIterator::GetCurrent<i::JSReceiver>(iter); |
| i::PropertyKey lookup_key(isolate, key_obj); |
| i::LookupIterator it(isolate, self, lookup_key, proto, |
| i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>(i::Object::GetProperty(&it), &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| if (!it.IsFound()) return MaybeLocal<Value>(); |
| RETURN_ESCAPED(result); |
| } |
| |
| Maybe<PropertyAttribute> |
| v8::Object::GetRealNamedPropertyAttributesInPrototypeChain( |
| Local<Context> context, Local<Name> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, |
| GetRealNamedPropertyAttributesInPrototypeChain, |
| Nothing<PropertyAttribute>(), i::HandleScope); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| if (!self->IsJSObject()) return Nothing<PropertyAttribute>(); |
| i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); |
| i::PrototypeIterator iter(isolate, self); |
| if (iter.IsAtEnd()) return Nothing<PropertyAttribute>(); |
| i::Handle<i::JSReceiver> proto = |
| i::PrototypeIterator::GetCurrent<i::JSReceiver>(iter); |
| i::PropertyKey lookup_key(isolate, key_obj); |
| i::LookupIterator it(isolate, self, lookup_key, proto, |
| i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); |
| Maybe<i::PropertyAttributes> result = |
| i::JSReceiver::GetPropertyAttributes(&it); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); |
| if (!it.IsFound()) return Nothing<PropertyAttribute>(); |
| if (result.FromJust() == i::ABSENT) return Just(None); |
| return Just(static_cast<PropertyAttribute>(result.FromJust())); |
| } |
| |
| MaybeLocal<Value> v8::Object::GetRealNamedProperty(Local<Context> context, |
| Local<Name> key) { |
| PREPARE_FOR_EXECUTION(context, Object, GetRealNamedProperty, Value); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); |
| i::PropertyKey lookup_key(isolate, key_obj); |
| i::LookupIterator it(isolate, self, lookup_key, self, |
| i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>(i::Object::GetProperty(&it), &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| if (!it.IsFound()) return MaybeLocal<Value>(); |
| RETURN_ESCAPED(result); |
| } |
| |
| Maybe<PropertyAttribute> v8::Object::GetRealNamedPropertyAttributes( |
| Local<Context> context, Local<Name> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Object, GetRealNamedPropertyAttributes, |
| Nothing<PropertyAttribute>(), i::HandleScope); |
| i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); |
| i::Handle<i::Name> key_obj = Utils::OpenHandle(*key); |
| i::PropertyKey lookup_key(isolate, key_obj); |
| i::LookupIterator it(isolate, self, lookup_key, self, |
| i::LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); |
| auto result = i::JSReceiver::GetPropertyAttributes(&it); |
| has_pending_exception = result.IsNothing(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(PropertyAttribute); |
| if (!it.IsFound()) return Nothing<PropertyAttribute>(); |
| if (result.FromJust() == i::ABSENT) { |
| return Just(static_cast<PropertyAttribute>(i::NONE)); |
| } |
| return Just<PropertyAttribute>( |
| static_cast<PropertyAttribute>(result.FromJust())); |
| } |
| |
| Local<v8::Object> v8::Object::Clone() { |
| auto self = i::Handle<i::JSObject>::cast(Utils::OpenHandle(this)); |
| auto isolate = self->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::JSObject> result = isolate->factory()->CopyJSObject(self); |
| return Utils::ToLocal(result); |
| } |
| |
| namespace { |
| Local<v8::Context> CreationContextImpl(i::Handle<i::JSReceiver> self) { |
| i::Handle<i::Context> context; |
| if (self->GetCreationContext().ToHandle(&context)) { |
| return Utils::ToLocal(context); |
| } |
| |
| return Local<v8::Context>(); |
| } |
| } // namespace |
| |
| Local<v8::Context> v8::Object::CreationContext() { |
| auto self = Utils::OpenHandle(this); |
| return CreationContextImpl(self); |
| } |
| |
| Local<v8::Context> v8::Object::CreationContext( |
| const PersistentBase<Object>& object) { |
| auto self = Utils::OpenHandle(object.val_); |
| return CreationContextImpl(self); |
| } |
| |
| MaybeLocal<v8::Context> v8::Object::GetCreationContext() { |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Context> context; |
| if (self->GetCreationContext().ToHandle(&context)) { |
| return Utils::ToLocal(context); |
| } |
| |
| return MaybeLocal<v8::Context>(); |
| } |
| |
| int v8::Object::GetIdentityHash() { |
| i::DisallowGarbageCollection no_gc; |
| auto self = Utils::OpenHandle(this); |
| auto isolate = self->GetIsolate(); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| return self->GetOrCreateIdentityHash(isolate).value(); |
| } |
| |
| bool v8::Object::IsCallable() const { |
| auto self = Utils::OpenHandle(this); |
| return self->IsCallable(); |
| } |
| |
| bool v8::Object::IsConstructor() const { |
| auto self = Utils::OpenHandle(this); |
| return self->IsConstructor(); |
| } |
| |
| bool v8::Object::IsApiWrapper() const { |
| auto self = i::Handle<i::JSObject>::cast(Utils::OpenHandle(this)); |
| return self->IsApiWrapper(); |
| } |
| |
| bool v8::Object::IsUndetectable() const { |
| auto self = i::Handle<i::JSObject>::cast(Utils::OpenHandle(this)); |
| return self->IsUndetectable(); |
| } |
| |
| MaybeLocal<Value> Object::CallAsFunction(Local<Context> context, |
| Local<Value> recv, int argc, |
| Local<Value> argv[]) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); |
| ENTER_V8(isolate, context, Object, CallAsFunction, MaybeLocal<Value>(), |
| InternalEscapableScope); |
| i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); |
| i::NestedTimedHistogramScope execute_timer( |
| isolate->counters()->execute_precise()); |
| auto self = Utils::OpenHandle(this); |
| auto recv_obj = Utils::OpenHandle(*recv); |
| STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); |
| i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>( |
| i::Execution::Call(isolate, self, recv_obj, argc, args), &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Value> Object::CallAsConstructor(Local<Context> context, int argc, |
| Local<Value> argv[]) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); |
| ENTER_V8(isolate, context, Object, CallAsConstructor, MaybeLocal<Value>(), |
| InternalEscapableScope); |
| i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); |
| i::NestedTimedHistogramScope execute_timer( |
| isolate->counters()->execute_precise()); |
| auto self = Utils::OpenHandle(this); |
| STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); |
| i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>( |
| i::Execution::New(isolate, self, self, argc, args), &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Function> Function::New(Local<Context> context, |
| FunctionCallback callback, Local<Value> data, |
| int length, ConstructorBehavior behavior, |
| SideEffectType side_effect_type) { |
| i::Isolate* isolate = Utils::OpenHandle(*context)->GetIsolate(); |
| LOG_API(isolate, Function, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| auto templ = |
| FunctionTemplateNew(isolate, callback, data, Local<Signature>(), length, |
| behavior, true, Local<Private>(), side_effect_type); |
| return templ->GetFunction(context); |
| } |
| |
| MaybeLocal<Object> Function::NewInstance(Local<Context> context, int argc, |
| v8::Local<v8::Value> argv[]) const { |
| return NewInstanceWithSideEffectType(context, argc, argv, |
| SideEffectType::kHasSideEffect); |
| } |
| |
| MaybeLocal<Object> Function::NewInstanceWithSideEffectType( |
| Local<Context> context, int argc, v8::Local<v8::Value> argv[], |
| SideEffectType side_effect_type) const { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); |
| ENTER_V8(isolate, context, Function, NewInstance, MaybeLocal<Object>(), |
| InternalEscapableScope); |
| i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); |
| i::NestedTimedHistogramScope execute_timer( |
| isolate->counters()->execute_precise()); |
| auto self = Utils::OpenHandle(this); |
| STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); |
| bool should_set_has_no_side_effect = |
| side_effect_type == SideEffectType::kHasNoSideEffect && |
| isolate->debug_execution_mode() == i::DebugInfo::kSideEffects; |
| if (should_set_has_no_side_effect) { |
| CHECK(self->IsJSFunction() && |
| i::JSFunction::cast(*self).shared().IsApiFunction()); |
| i::Object obj = |
| i::JSFunction::cast(*self).shared().get_api_func_data().call_code( |
| kAcquireLoad); |
| if (obj.IsCallHandlerInfo()) { |
| i::CallHandlerInfo handler_info = i::CallHandlerInfo::cast(obj); |
| if (!handler_info.IsSideEffectFreeCallHandlerInfo()) { |
| handler_info.SetNextCallHasNoSideEffect(); |
| } |
| } |
| } |
| i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); |
| Local<Object> result; |
| has_pending_exception = !ToLocal<Object>( |
| i::Execution::New(isolate, self, self, argc, args), &result); |
| if (should_set_has_no_side_effect) { |
| i::Object obj = |
| i::JSFunction::cast(*self).shared().get_api_func_data().call_code( |
| kAcquireLoad); |
| if (obj.IsCallHandlerInfo()) { |
| i::CallHandlerInfo handler_info = i::CallHandlerInfo::cast(obj); |
| if (has_pending_exception) { |
| // Restore the map if an exception prevented restoration. |
| handler_info.NextCallHasNoSideEffect(); |
| } else { |
| DCHECK(handler_info.IsSideEffectCallHandlerInfo() || |
| handler_info.IsSideEffectFreeCallHandlerInfo()); |
| } |
| } |
| } |
| RETURN_ON_FAILED_EXECUTION(Object); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<v8::Value> Function::Call(Local<Context> context, |
| v8::Local<v8::Value> recv, int argc, |
| v8::Local<v8::Value> argv[]) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.Execute"); |
| ENTER_V8(isolate, context, Function, Call, MaybeLocal<Value>(), |
| InternalEscapableScope); |
| i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate); |
| i::NestedTimedHistogramScope execute_timer( |
| isolate->counters()->execute_precise()); |
| auto self = Utils::OpenHandle(this); |
| Utils::ApiCheck(!self.is_null(), "v8::Function::Call", |
| "Function to be called is a null pointer"); |
| i::Handle<i::Object> recv_obj = Utils::OpenHandle(*recv); |
| STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Handle<i::Object>)); |
| i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>( |
| i::Execution::Call(isolate, self, recv_obj, argc, args), &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| void Function::SetName(v8::Local<v8::String> name) { |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSFunction()) return; |
| auto func = i::Handle<i::JSFunction>::cast(self); |
| ASSERT_NO_SCRIPT_NO_EXCEPTION(func->GetIsolate()); |
| func->shared().SetName(*Utils::OpenHandle(*name)); |
| } |
| |
| Local<Value> Function::GetName() const { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| if (self->IsJSBoundFunction()) { |
| auto func = i::Handle<i::JSBoundFunction>::cast(self); |
| i::Handle<i::Object> name; |
| ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, name, |
| i::JSBoundFunction::GetName(isolate, func), |
| Local<Value>()); |
| return Utils::ToLocal(name); |
| } |
| if (self->IsJSFunction()) { |
| auto func = i::Handle<i::JSFunction>::cast(self); |
| return Utils::ToLocal(handle(func->shared().Name(), isolate)); |
| } |
| return ToApiHandle<Primitive>(isolate->factory()->undefined_value()); |
| } |
| |
| Local<Value> Function::GetInferredName() const { |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSFunction()) { |
| return ToApiHandle<Primitive>( |
| self->GetIsolate()->factory()->undefined_value()); |
| } |
| auto func = i::Handle<i::JSFunction>::cast(self); |
| return Utils::ToLocal( |
| i::Handle<i::Object>(func->shared().inferred_name(), func->GetIsolate())); |
| } |
| |
| Local<Value> Function::GetDebugName() const { |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSFunction()) { |
| return ToApiHandle<Primitive>( |
| self->GetIsolate()->factory()->undefined_value()); |
| } |
| auto func = i::Handle<i::JSFunction>::cast(self); |
| i::Handle<i::String> name = i::JSFunction::GetDebugName(func); |
| return Utils::ToLocal(i::Handle<i::Object>(*name, self->GetIsolate())); |
| } |
| |
| ScriptOrigin Function::GetScriptOrigin() const { |
| auto self = Utils::OpenHandle(this); |
| auto isolate = reinterpret_cast<v8::Isolate*>(self->GetIsolate()); |
| if (!self->IsJSFunction()) return v8::ScriptOrigin(isolate, Local<Value>()); |
| auto func = i::Handle<i::JSFunction>::cast(self); |
| if (func->shared().script().IsScript()) { |
| i::Handle<i::Script> script(i::Script::cast(func->shared().script()), |
| func->GetIsolate()); |
| return GetScriptOriginForScript(func->GetIsolate(), script); |
| } |
| return v8::ScriptOrigin(isolate, Local<Value>()); |
| } |
| |
| const int Function::kLineOffsetNotFound = -1; |
| |
| int Function::GetScriptLineNumber() const { |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSFunction()) { |
| return kLineOffsetNotFound; |
| } |
| auto func = i::Handle<i::JSFunction>::cast(self); |
| if (func->shared().script().IsScript()) { |
| i::Handle<i::Script> script(i::Script::cast(func->shared().script()), |
| func->GetIsolate()); |
| return i::Script::GetLineNumber(script, func->shared().StartPosition()); |
| } |
| return kLineOffsetNotFound; |
| } |
| |
| int Function::GetScriptColumnNumber() const { |
| auto self = Utils::OpenHandle(this); |
| if (!self->IsJSFunction()) { |
| return kLineOffsetNotFound; |
| } |
| auto func = i::Handle<i::JSFunction>::cast(self); |
| if (func->shared().script().IsScript()) { |
| i::Handle<i::Script> script(i::Script::cast(func->shared().script()), |
| func->GetIsolate()); |
| return i::Script::GetColumnNumber(script, func->shared().StartPosition()); |
| } |
| return kLineOffsetNotFound; |
| } |
| |
| int Function::ScriptId() const { |
| i::JSReceiver self = *Utils::OpenHandle(this); |
| if (!self.IsJSFunction()) return v8::UnboundScript::kNoScriptId; |
| auto func = i::JSFunction::cast(self); |
| if (!func.shared().script().IsScript()) return v8::UnboundScript::kNoScriptId; |
| return i::Script::cast(func.shared().script()).id(); |
| } |
| |
| Local<v8::Value> Function::GetBoundFunction() const { |
| auto self = Utils::OpenHandle(this); |
| if (self->IsJSBoundFunction()) { |
| auto bound_function = i::Handle<i::JSBoundFunction>::cast(self); |
| auto bound_target_function = i::handle( |
| bound_function->bound_target_function(), bound_function->GetIsolate()); |
| return Utils::CallableToLocal(bound_target_function); |
| } |
| return v8::Undefined(reinterpret_cast<v8::Isolate*>(self->GetIsolate())); |
| } |
| |
| MaybeLocal<String> v8::Function::FunctionProtoToString(Local<Context> context) { |
| PREPARE_FOR_EXECUTION(context, Function, FunctionProtoToString, String); |
| auto self = Utils::OpenHandle(this); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>( |
| i::Execution::CallBuiltin(isolate, isolate->function_to_string(), self, 0, |
| nullptr), |
| &result); |
| RETURN_ON_FAILED_EXECUTION(String); |
| RETURN_ESCAPED(Local<String>::Cast(result)); |
| } |
| |
| int Name::GetIdentityHash() { |
| auto self = Utils::OpenHandle(this); |
| return static_cast<int>(self->EnsureHash()); |
| } |
| |
| int String::Length() const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| return str->length(); |
| } |
| |
| bool String::IsOneByte() const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| return str->IsOneByteRepresentation(); |
| } |
| |
| // Helpers for ContainsOnlyOneByteHelper |
| template <size_t size> |
| struct OneByteMask; |
| template <> |
| struct OneByteMask<4> { |
| static const uint32_t value = 0xFF00FF00; |
| }; |
| template <> |
| struct OneByteMask<8> { |
| static const uint64_t value = 0xFF00'FF00'FF00'FF00; |
| }; |
| static const uintptr_t kOneByteMask = OneByteMask<sizeof(uintptr_t)>::value; |
| static const uintptr_t kAlignmentMask = sizeof(uintptr_t) - 1; |
| static inline bool Unaligned(const uint16_t* chars) { |
| return reinterpret_cast<const uintptr_t>(chars) & kAlignmentMask; |
| } |
| |
| static inline const uint16_t* Align(const uint16_t* chars) { |
| return reinterpret_cast<uint16_t*>(reinterpret_cast<uintptr_t>(chars) & |
| ~kAlignmentMask); |
| } |
| |
| class ContainsOnlyOneByteHelper { |
| public: |
| ContainsOnlyOneByteHelper() : is_one_byte_(true) {} |
| ContainsOnlyOneByteHelper(const ContainsOnlyOneByteHelper&) = delete; |
| ContainsOnlyOneByteHelper& operator=(const ContainsOnlyOneByteHelper&) = |
| delete; |
| bool Check(i::String string) { |
| i::ConsString cons_string = i::String::VisitFlat(this, string, 0); |
| if (cons_string.is_null()) return is_one_byte_; |
| return CheckCons(cons_string); |
| } |
| void VisitOneByteString(const uint8_t* chars, int length) { |
| // Nothing to do. |
| } |
| void VisitTwoByteString(const uint16_t* chars, int length) { |
| // Accumulated bits. |
| uintptr_t acc = 0; |
| // Align to uintptr_t. |
| const uint16_t* end = chars + length; |
| while (Unaligned(chars) && chars != end) { |
| acc |= *chars++; |
| } |
| // Read word aligned in blocks, |
| // checking the return value at the end of each block. |
| const uint16_t* aligned_end = Align(end); |
| const int increment = sizeof(uintptr_t) / sizeof(uint16_t); |
| const int inner_loops = 16; |
| while (chars + inner_loops * increment < aligned_end) { |
| for (int i = 0; i < inner_loops; i++) { |
| acc |= *reinterpret_cast<const uintptr_t*>(chars); |
| chars += increment; |
| } |
| // Check for early return. |
| if ((acc & kOneByteMask) != 0) { |
| is_one_byte_ = false; |
| return; |
| } |
| } |
| // Read the rest. |
| while (chars != end) { |
| acc |= *chars++; |
| } |
| // Check result. |
| if ((acc & kOneByteMask) != 0) is_one_byte_ = false; |
| } |
| |
| private: |
| bool CheckCons(i::ConsString cons_string) { |
| while (true) { |
| // Check left side if flat. |
| i::String left = cons_string.first(); |
| i::ConsString left_as_cons = i::String::VisitFlat(this, left, 0); |
| if (!is_one_byte_) return false; |
| // Check right side if flat. |
| i::String right = cons_string.second(); |
| i::ConsString right_as_cons = i::String::VisitFlat(this, right, 0); |
| if (!is_one_byte_) return false; |
| // Standard recurse/iterate trick. |
| if (!left_as_cons.is_null() && !right_as_cons.is_null()) { |
| if (left.length() < right.length()) { |
| CheckCons(left_as_cons); |
| cons_string = right_as_cons; |
| } else { |
| CheckCons(right_as_cons); |
| cons_string = left_as_cons; |
| } |
| // Check fast return. |
| if (!is_one_byte_) return false; |
| continue; |
| } |
| // Descend left in place. |
| if (!left_as_cons.is_null()) { |
| cons_string = left_as_cons; |
| continue; |
| } |
| // Descend right in place. |
| if (!right_as_cons.is_null()) { |
| cons_string = right_as_cons; |
| continue; |
| } |
| // Terminate. |
| break; |
| } |
| return is_one_byte_; |
| } |
| bool is_one_byte_; |
| }; |
| |
| bool String::ContainsOnlyOneByte() const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| if (str->IsOneByteRepresentation()) return true; |
| ContainsOnlyOneByteHelper helper; |
| return helper.Check(*str); |
| } |
| |
| int String::Utf8Length(Isolate* isolate) const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| str = i::String::Flatten(reinterpret_cast<i::Isolate*>(isolate), str); |
| int length = str->length(); |
| if (length == 0) return 0; |
| i::DisallowGarbageCollection no_gc; |
| i::String::FlatContent flat = str->GetFlatContent(no_gc); |
| DCHECK(flat.IsFlat()); |
| int utf8_length = 0; |
| if (flat.IsOneByte()) { |
| for (uint8_t c : flat.ToOneByteVector()) { |
| utf8_length += c >> 7; |
| } |
| utf8_length += length; |
| } else { |
| int last_character = unibrow::Utf16::kNoPreviousCharacter; |
| for (uint16_t c : flat.ToUC16Vector()) { |
| utf8_length += unibrow::Utf8::Length(c, last_character); |
| last_character = c; |
| } |
| } |
| return utf8_length; |
| } |
| |
| namespace { |
| // Writes the flat content of a string to a buffer. This is done in two phases. |
| // The first phase calculates a pessimistic estimate (writable_length) on how |
| // many code units can be safely written without exceeding the buffer capacity |
| // and without leaving at a lone surrogate. The estimated number of code units |
| // is then written out in one go, and the reported byte usage is used to |
| // correct the estimate. This is repeated until the estimate becomes <= 0 or |
| // all code units have been written out. The second phase writes out code |
| // units until the buffer capacity is reached, would be exceeded by the next |
| // unit, or all code units have been written out. |
| template <typename Char> |
| static int WriteUtf8Impl(base::Vector<const Char> string, char* write_start, |
| int write_capacity, int options, |
| int* utf16_chars_read_out) { |
| bool write_null = !(options & v8::String::NO_NULL_TERMINATION); |
| bool replace_invalid_utf8 = (options & v8::String::REPLACE_INVALID_UTF8); |
| char* current_write = write_start; |
| const Char* read_start = string.begin(); |
| int read_index = 0; |
| int read_length = string.length(); |
| int prev_char = unibrow::Utf16::kNoPreviousCharacter; |
| // Do a fast loop where there is no exit capacity check. |
| // Need enough space to write everything but one character. |
| STATIC_ASSERT(unibrow::Utf16::kMaxExtraUtf8BytesForOneUtf16CodeUnit == 3); |
| static const int kMaxSizePerChar = sizeof(Char) == 1 ? 2 : 3; |
| while (read_index < read_length) { |
| int up_to = read_length; |
| if (write_capacity != -1) { |
| int remaining_capacity = |
| write_capacity - static_cast<int>(current_write - write_start); |
| int writable_length = |
| (remaining_capacity - kMaxSizePerChar) / kMaxSizePerChar; |
| // Need to drop into slow loop. |
| if (writable_length <= 0) break; |
| up_to = std::min(up_to, read_index + writable_length); |
| } |
| // Write the characters to the stream. |
| if (sizeof(Char) == 1) { |
| // Simply memcpy if we only have ASCII characters. |
| uint8_t char_mask = 0; |
| for (int i = read_index; i < up_to; i++) char_mask |= read_start[i]; |
| if ((char_mask & 0x80) == 0) { |
| int copy_length = up_to - read_index; |
| memcpy(current_write, read_start + read_index, copy_length); |
| current_write += copy_length; |
| read_index = up_to; |
| } else { |
| for (; read_index < up_to; read_index++) { |
| current_write += unibrow::Utf8::EncodeOneByte( |
| current_write, static_cast<uint8_t>(read_start[read_index])); |
| DCHECK(write_capacity == -1 || |
| (current_write - write_start) <= write_capacity); |
| } |
| } |
| } else { |
| for (; read_index < up_to; read_index++) { |
| uint16_t character = read_start[read_index]; |
| current_write += unibrow::Utf8::Encode(current_write, character, |
| prev_char, replace_invalid_utf8); |
| prev_char = character; |
| DCHECK(write_capacity == -1 || |
| (current_write - write_start) <= write_capacity); |
| } |
| } |
| } |
| if (read_index < read_length) { |
| DCHECK_NE(-1, write_capacity); |
| // Aborted due to limited capacity. Check capacity on each iteration. |
| int remaining_capacity = |
| write_capacity - static_cast<int>(current_write - write_start); |
| DCHECK_GE(remaining_capacity, 0); |
| for (; read_index < read_length && remaining_capacity > 0; read_index++) { |
| uint32_t character = read_start[read_index]; |
| int written = 0; |
| // We can't use a local buffer here because Encode needs to modify |
| // previous characters in the stream. We know, however, that |
| // exactly one character will be advanced. |
| if (unibrow::Utf16::IsSurrogatePair(prev_char, character)) { |
| written = unibrow::Utf8::Encode(current_write, character, prev_char, |
| replace_invalid_utf8); |
| DCHECK_EQ(written, 1); |
| } else { |
| // Use a scratch buffer to check the required characters. |
| char temp_buffer[unibrow::Utf8::kMaxEncodedSize]; |
| // Encoding a surrogate pair to Utf8 always takes 4 bytes. |
| static const int kSurrogatePairEncodedSize = |
| static_cast<int>(unibrow::Utf8::kMaxEncodedSize); |
| // For REPLACE_INVALID_UTF8, catch the case where we cut off in the |
| // middle of a surrogate pair. Abort before encoding the pair instead. |
| if (replace_invalid_utf8 && |
| remaining_capacity < kSurrogatePairEncodedSize && |
| unibrow::Utf16::IsLeadSurrogate(character) && |
| read_index + 1 < read_length && |
| unibrow::Utf16::IsTrailSurrogate(read_start[read_index + 1])) { |
| write_null = false; |
| break; |
| } |
| // Can't encode using prev_char as gcc has array bounds issues. |
| written = unibrow::Utf8::Encode(temp_buffer, character, |
| unibrow::Utf16::kNoPreviousCharacter, |
| replace_invalid_utf8); |
| if (written > remaining_capacity) { |
| // Won't fit. Abort and do not null-terminate the result. |
| write_null = false; |
| break; |
| } |
| // Copy over the character from temp_buffer. |
| for (int i = 0; i < written; i++) current_write[i] = temp_buffer[i]; |
| } |
| |
| current_write += written; |
| remaining_capacity -= written; |
| prev_char = character; |
| } |
| } |
| |
| // Write out number of utf16 characters written to the stream. |
| if (utf16_chars_read_out != nullptr) *utf16_chars_read_out = read_index; |
| |
| // Only null-terminate if there's space. |
| if (write_null && (write_capacity == -1 || |
| (current_write - write_start) < write_capacity)) { |
| *current_write++ = '\0'; |
| } |
| return static_cast<int>(current_write - write_start); |
| } |
| } // anonymous namespace |
| |
| int String::WriteUtf8(Isolate* v8_isolate, char* buffer, int capacity, |
| int* nchars_ref, int options) const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| LOG_API(isolate, String, WriteUtf8); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| str = i::String::Flatten(isolate, str); |
| i::DisallowGarbageCollection no_gc; |
| i::String::FlatContent content = str->GetFlatContent(no_gc); |
| if (content.IsOneByte()) { |
| return WriteUtf8Impl<uint8_t>(content.ToOneByteVector(), buffer, capacity, |
| options, nchars_ref); |
| } else { |
| return WriteUtf8Impl<uint16_t>(content.ToUC16Vector(), buffer, capacity, |
| options, nchars_ref); |
| } |
| } |
| |
| template <typename CharType> |
| static inline int WriteHelper(i::Isolate* isolate, const String* string, |
| CharType* buffer, int start, int length, |
| int options) { |
| LOG_API(isolate, String, Write); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| DCHECK(start >= 0 && length >= -1); |
| i::Handle<i::String> str = Utils::OpenHandle(string); |
| str = i::String::Flatten(isolate, str); |
| int end = start + length; |
| if ((length == -1) || (length > str->length() - start)) end = str->length(); |
| if (end < 0) return 0; |
| int write_length = end - start; |
| if (start < end) i::String::WriteToFlat(*str, buffer, start, write_length); |
| if (!(options & String::NO_NULL_TERMINATION) && |
| (length == -1 || write_length < length)) { |
| buffer[write_length] = '\0'; |
| } |
| return write_length; |
| } |
| |
| int String::WriteOneByte(Isolate* isolate, uint8_t* buffer, int start, |
| int length, int options) const { |
| return WriteHelper(reinterpret_cast<i::Isolate*>(isolate), this, buffer, |
| start, length, options); |
| } |
| |
| int String::Write(Isolate* isolate, uint16_t* buffer, int start, int length, |
| int options) const { |
| return WriteHelper(reinterpret_cast<i::Isolate*>(isolate), this, buffer, |
| start, length, options); |
| } |
| |
| bool v8::String::IsExternal() const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| return i::StringShape(*str).IsExternal(); |
| } |
| |
| bool v8::String::IsExternalTwoByte() const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| return i::StringShape(*str).IsExternalTwoByte(); |
| } |
| |
| bool v8::String::IsExternalOneByte() const { |
| i::Handle<i::String> str = Utils::OpenHandle(this); |
| return i::StringShape(*str).IsExternalOneByte(); |
| } |
| |
| void v8::String::VerifyExternalStringResource( |
| v8::String::ExternalStringResource* value) const { |
| i::DisallowGarbageCollection no_gc; |
| i::String str = *Utils::OpenHandle(this); |
| const v8::String::ExternalStringResource* expected; |
| |
| if (str.IsThinString()) { |
| str = i::ThinString::cast(str).actual(); |
| } |
| |
| if (i::StringShape(str).IsExternalTwoByte()) { |
| const void* resource = i::ExternalTwoByteString::cast(str).resource(); |
| expected = reinterpret_cast<const ExternalStringResource*>(resource); |
| } else { |
| expected = nullptr; |
| } |
| CHECK_EQ(expected, value); |
| } |
| |
| void v8::String::VerifyExternalStringResourceBase( |
| v8::String::ExternalStringResourceBase* value, Encoding encoding) const { |
| i::DisallowGarbageCollection no_gc; |
| i::String str = *Utils::OpenHandle(this); |
| const v8::String::ExternalStringResourceBase* expected; |
| Encoding expectedEncoding; |
| |
| if (str.IsThinString()) { |
| str = i::ThinString::cast(str).actual(); |
| } |
| |
| if (i::StringShape(str).IsExternalOneByte()) { |
| const void* resource = i::ExternalOneByteString::cast(str).resource(); |
| expected = reinterpret_cast<const ExternalStringResourceBase*>(resource); |
| expectedEncoding = ONE_BYTE_ENCODING; |
| } else if (i::StringShape(str).IsExternalTwoByte()) { |
| const void* resource = i::ExternalTwoByteString::cast(str).resource(); |
| expected = reinterpret_cast<const ExternalStringResourceBase*>(resource); |
| expectedEncoding = TWO_BYTE_ENCODING; |
| } else { |
| expected = nullptr; |
| expectedEncoding = |
| str.IsOneByteRepresentation() ? ONE_BYTE_ENCODING : TWO_BYTE_ENCODING; |
| } |
| CHECK_EQ(expected, value); |
| CHECK_EQ(expectedEncoding, encoding); |
| } |
| |
| String::ExternalStringResource* String::GetExternalStringResourceSlow() const { |
| i::DisallowGarbageCollection no_gc; |
| using I = internal::Internals; |
| i::String str = *Utils::OpenHandle(this); |
| |
| if (str.IsThinString()) { |
| str = i::ThinString::cast(str).actual(); |
| } |
| |
| if (i::StringShape(str).IsExternalTwoByte()) { |
| internal::Isolate* isolate = I::GetIsolateForHeapSandbox(str.ptr()); |
| internal::Address value = I::ReadExternalPointerField( |
| isolate, str.ptr(), I::kStringResourceOffset, |
| internal::kExternalStringResourceTag); |
| return reinterpret_cast<String::ExternalStringResource*>(value); |
| } |
| return nullptr; |
| } |
| |
| void String::ExternalStringResource::UpdateDataCache() { |
| DCHECK(IsCacheable()); |
| cached_data_ = data(); |
| } |
| |
| void String::ExternalStringResource::CheckCachedDataInvariants() const { |
| DCHECK(IsCacheable() && cached_data_ != nullptr); |
| } |
| |
| void String::ExternalOneByteStringResource::UpdateDataCache() { |
| DCHECK(IsCacheable()); |
| cached_data_ = data(); |
| } |
| |
| void String::ExternalOneByteStringResource::CheckCachedDataInvariants() const { |
| DCHECK(IsCacheable() && cached_data_ != nullptr); |
| } |
| |
| String::ExternalStringResourceBase* String::GetExternalStringResourceBaseSlow( |
| String::Encoding* encoding_out) const { |
| i::DisallowGarbageCollection no_gc; |
| using I = internal::Internals; |
| ExternalStringResourceBase* resource = nullptr; |
| i::String str = *Utils::OpenHandle(this); |
| |
| if (str.IsThinString()) { |
| str = i::ThinString::cast(str).actual(); |
| } |
| |
| internal::Address string = str.ptr(); |
| int type = I::GetInstanceType(string) & I::kFullStringRepresentationMask; |
| *encoding_out = static_cast<Encoding>(type & I::kStringEncodingMask); |
| if (i::StringShape(str).IsExternalOneByte() || |
| i::StringShape(str).IsExternalTwoByte()) { |
| internal::Isolate* isolate = I::GetIsolateForHeapSandbox(string); |
| internal::Address value = |
| I::ReadExternalPointerField(isolate, string, I::kStringResourceOffset, |
| internal::kExternalStringResourceTag); |
| resource = reinterpret_cast<ExternalStringResourceBase*>(value); |
| } |
| return resource; |
| } |
| |
| const v8::String::ExternalOneByteStringResource* |
| v8::String::GetExternalOneByteStringResource() const { |
| i::DisallowGarbageCollection no_gc; |
| i::String str = *Utils::OpenHandle(this); |
| if (i::StringShape(str).IsExternalOneByte()) { |
| return i::ExternalOneByteString::cast(str).resource(); |
| } else if (str.IsThinString()) { |
| str = i::ThinString::cast(str).actual(); |
| if (i::StringShape(str).IsExternalOneByte()) { |
| return i::ExternalOneByteString::cast(str).resource(); |
| } |
| } |
| return nullptr; |
| } |
| |
| Local<Value> Symbol::Description() const { |
| i::Handle<i::Symbol> sym = Utils::OpenHandle(this); |
| |
| i::Isolate* isolate; |
| if (!i::GetIsolateFromHeapObject(*sym, &isolate)) { |
| // Symbol is in RO_SPACE, which means that its description is also in |
| // RO_SPACE. Since RO_SPACE objects are immovable we can use the |
| // Handle(Address*) constructor with the address of the description |
| // field in the Symbol object without needing an isolate. |
| DCHECK(!COMPRESS_POINTERS_IN_ISOLATE_CAGE_BOOL); |
| #ifndef V8_COMPRESS_POINTERS_IN_SHARED_CAGE |
| i::Handle<i::HeapObject> ro_description(reinterpret_cast<i::Address*>( |
| sym->GetFieldAddress(i::Symbol::kDescriptionOffset))); |
| return Utils::ToLocal(ro_description); |
| #else |
| isolate = reinterpret_cast<i::Isolate*>(Isolate::GetCurrent()); |
| #endif |
| } |
| |
| return Description(reinterpret_cast<Isolate*>(isolate)); |
| } |
| |
| Local<Value> Symbol::Description(Isolate* isolate) const { |
| i::Handle<i::Symbol> sym = Utils::OpenHandle(this); |
| i::Handle<i::Object> description(sym->description(), |
| reinterpret_cast<i::Isolate*>(isolate)); |
| return Utils::ToLocal(description); |
| } |
| |
| Local<Value> Private::Name() const { |
| const Symbol* sym = reinterpret_cast<const Symbol*>(this); |
| i::Handle<i::Symbol> i_sym = Utils::OpenHandle(sym); |
| // v8::Private symbols are created by API and are therefore writable, so we |
| // can always recover an Isolate. |
| i::Isolate* isolate = i::GetIsolateFromWritableObject(*i_sym); |
| return sym->Description(reinterpret_cast<Isolate*>(isolate)); |
| } |
| |
| double Number::Value() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| return obj->Number(); |
| } |
| |
| bool Boolean::Value() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| return obj->IsTrue(); |
| } |
| |
| int64_t Integer::Value() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (obj.IsSmi()) { |
| return i::Smi::ToInt(obj); |
| } else { |
| return static_cast<int64_t>(obj.Number()); |
| } |
| } |
| |
| int32_t Int32::Value() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (obj.IsSmi()) { |
| return i::Smi::ToInt(obj); |
| } else { |
| return static_cast<int32_t>(obj.Number()); |
| } |
| } |
| |
| uint32_t Uint32::Value() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| if (obj.IsSmi()) { |
| return i::Smi::ToInt(obj); |
| } else { |
| return static_cast<uint32_t>(obj.Number()); |
| } |
| } |
| |
| int v8::Object::InternalFieldCount() const { |
| i::JSReceiver self = *Utils::OpenHandle(this); |
| if (!self.IsJSObject()) return 0; |
| return i::JSObject::cast(self).GetEmbedderFieldCount(); |
| } |
| |
| static bool InternalFieldOK(i::Handle<i::JSReceiver> obj, int index, |
| const char* location) { |
| return Utils::ApiCheck( |
| obj->IsJSObject() && |
| (index < i::Handle<i::JSObject>::cast(obj)->GetEmbedderFieldCount()), |
| location, "Internal field out of bounds"); |
| } |
| |
| Local<Value> v8::Object::SlowGetInternalField(int index) { |
| i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); |
| const char* location = "v8::Object::GetInternalField()"; |
| if (!InternalFieldOK(obj, index, location)) return Local<Value>(); |
| i::Handle<i::Object> value(i::JSObject::cast(*obj).GetEmbedderField(index), |
| obj->GetIsolate()); |
| return Utils::ToLocal(value); |
| } |
| |
| void v8::Object::SetInternalField(int index, v8::Local<Value> value) { |
| i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); |
| const char* location = "v8::Object::SetInternalField()"; |
| if (!InternalFieldOK(obj, index, location)) return; |
| i::Handle<i::Object> val = Utils::OpenHandle(*value); |
| i::Handle<i::JSObject>::cast(obj)->SetEmbedderField(index, *val); |
| } |
| |
| void* v8::Object::SlowGetAlignedPointerFromInternalField(int index) { |
| i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); |
| const char* location = "v8::Object::GetAlignedPointerFromInternalField()"; |
| if (!InternalFieldOK(obj, index, location)) return nullptr; |
| void* result; |
| Utils::ApiCheck(i::EmbedderDataSlot(i::JSObject::cast(*obj), index) |
| .ToAlignedPointer(obj->GetIsolate(), &result), |
| location, "Unaligned pointer"); |
| return result; |
| } |
| |
| void v8::Object::SetAlignedPointerInInternalField(int index, void* value) { |
| i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); |
| const char* location = "v8::Object::SetAlignedPointerInInternalField()"; |
| if (!InternalFieldOK(obj, index, location)) return; |
| Utils::ApiCheck(i::EmbedderDataSlot(i::JSObject::cast(*obj), index) |
| .store_aligned_pointer(obj->GetIsolate(), value), |
| location, "Unaligned pointer"); |
| DCHECK_EQ(value, GetAlignedPointerFromInternalField(index)); |
| } |
| |
| void v8::Object::SetAlignedPointerInInternalFields(int argc, int indices[], |
| void* values[]) { |
| i::Handle<i::JSReceiver> obj = Utils::OpenHandle(this); |
| const char* location = "v8::Object::SetAlignedPointerInInternalFields()"; |
| i::DisallowGarbageCollection no_gc; |
| i::JSObject js_obj = i::JSObject::cast(*obj); |
| int nof_embedder_fields = js_obj.GetEmbedderFieldCount(); |
| for (int i = 0; i < argc; i++) { |
| int index = indices[i]; |
| if (!Utils::ApiCheck(index < nof_embedder_fields, location, |
| "Internal field out of bounds")) { |
| return; |
| } |
| void* value = values[i]; |
| Utils::ApiCheck(i::EmbedderDataSlot(js_obj, index) |
| .store_aligned_pointer(obj->GetIsolate(), value), |
| location, "Unaligned pointer"); |
| DCHECK_EQ(value, GetAlignedPointerFromInternalField(index)); |
| } |
| } |
| |
| static void* ExternalValue(i::Object obj) { |
| // Obscure semantics for undefined, but somehow checked in our unit tests... |
| if (obj.IsUndefined()) { |
| return nullptr; |
| } |
| i::Object foreign = i::JSObject::cast(obj).GetEmbedderField(0); |
| return reinterpret_cast<void*>(i::Foreign::cast(foreign).foreign_address()); |
| } |
| |
| // --- E n v i r o n m e n t --- |
| |
| void v8::V8::InitializePlatform(Platform* platform) { |
| i::V8::InitializePlatform(platform); |
| } |
| |
| #ifdef V8_VIRTUAL_MEMORY_CAGE |
| bool v8::V8::InitializeVirtualMemoryCage() { |
| return i::V8::InitializeVirtualMemoryCage(); |
| } |
| #endif |
| |
| void v8::V8::ShutdownPlatform() { i::V8::ShutdownPlatform(); } |
| |
| bool v8::V8::Initialize(const int build_config) { |
| const bool kEmbedderPointerCompression = |
| (build_config & kPointerCompression) != 0; |
| if (kEmbedderPointerCompression != COMPRESS_POINTERS_BOOL) { |
| FATAL( |
| "Embedder-vs-V8 build configuration mismatch. On embedder side " |
| "pointer compression is %s while on V8 side it's %s.", |
| kEmbedderPointerCompression ? "ENABLED" : "DISABLED", |
| COMPRESS_POINTERS_BOOL ? "ENABLED" : "DISABLED"); |
| } |
| |
| const int kEmbedderSmiValueSize = (build_config & k31BitSmis) ? 31 : 32; |
| if (kEmbedderSmiValueSize != internal::kSmiValueSize) { |
| FATAL( |
| "Embedder-vs-V8 build configuration mismatch. On embedder side " |
| "Smi value size is %d while on V8 side it's %d.", |
| kEmbedderSmiValueSize, internal::kSmiValueSize); |
| } |
| |
| const bool kEmbedderHeapSandbox = (build_config & kHeapSandbox) != 0; |
| if (kEmbedderHeapSandbox != V8_HEAP_SANDBOX_BOOL) { |
| FATAL( |
| "Embedder-vs-V8 build configuration mismatch. On embedder side " |
| "heap sandbox is %s while on V8 side it's %s.", |
| kEmbedderHeapSandbox ? "ENABLED" : "DISABLED", |
| V8_HEAP_SANDBOX_BOOL ? "ENABLED" : "DISABLED"); |
| } |
| |
| const bool kEmbedderVirtualMemoryCage = |
| (build_config & kVirtualMemoryCage) != 0; |
| if (kEmbedderVirtualMemoryCage != V8_VIRTUAL_MEMORY_CAGE_BOOL) { |
| FATAL( |
| "Embedder-vs-V8 build configuration mismatch. On embedder side " |
| "virtual memory cage is %s while on V8 side it's %s.", |
| kEmbedderVirtualMemoryCage ? "ENABLED" : "DISABLED", |
| V8_VIRTUAL_MEMORY_CAGE_BOOL ? "ENABLED" : "DISABLED"); |
| } |
| |
| i::V8::Initialize(); |
| return true; |
| } |
| |
| #if V8_OS_LINUX || V8_OS_MACOSX |
| bool TryHandleWebAssemblyTrapPosix(int sig_code, siginfo_t* info, |
| void* context) { |
| #if V8_ENABLE_WEBASSEMBLY && V8_TRAP_HANDLER_SUPPORTED |
| return i::trap_handler::TryHandleSignal(sig_code, info, context); |
| #else |
| return false; |
| #endif |
| } |
| #endif |
| |
| #if V8_OS_WIN |
| bool TryHandleWebAssemblyTrapWindows(EXCEPTION_POINTERS* exception) { |
| #if V8_ENABLE_WEBASSEMBLY && V8_TRAP_HANDLER_SUPPORTED |
| return i::trap_handler::TryHandleWasmTrap(exception); |
| #else |
| return false; |
| #endif |
| } |
| #endif |
| |
| bool V8::EnableWebAssemblyTrapHandler(bool use_v8_signal_handler) { |
| #if V8_ENABLE_WEBASSEMBLY |
| return v8::internal::trap_handler::EnableTrapHandler(use_v8_signal_handler); |
| #else |
| return false; |
| #endif |
| } |
| |
| #if defined(V8_OS_WIN) |
| void V8::SetUnhandledExceptionCallback( |
| UnhandledExceptionCallback unhandled_exception_callback) { |
| #if defined(V8_OS_WIN64) |
| v8::internal::win64_unwindinfo::SetUnhandledExceptionCallback( |
| unhandled_exception_callback); |
| #else |
| // Not implemented, port needed. |
| #endif // V8_OS_WIN64 |
| } |
| #endif // V8_OS_WIN |
| |
| void v8::V8::SetEntropySource(EntropySource entropy_source) { |
| base::RandomNumberGenerator::SetEntropySource(entropy_source); |
| } |
| |
| void v8::V8::SetReturnAddressLocationResolver( |
| ReturnAddressLocationResolver return_address_resolver) { |
| i::StackFrame::SetReturnAddressLocationResolver(return_address_resolver); |
| } |
| |
| bool v8::V8::Dispose() { |
| i::V8::TearDown(); |
| return true; |
| } |
| |
| SharedMemoryStatistics::SharedMemoryStatistics() |
| : read_only_space_size_(0), |
| read_only_space_used_size_(0), |
| read_only_space_physical_size_(0) {} |
| |
| HeapStatistics::HeapStatistics() |
| : total_heap_size_(0), |
| total_heap_size_executable_(0), |
| total_physical_size_(0), |
| total_available_size_(0), |
| used_heap_size_(0), |
| heap_size_limit_(0), |
| malloced_memory_(0), |
| external_memory_(0), |
| peak_malloced_memory_(0), |
| does_zap_garbage_(false), |
| number_of_native_contexts_(0), |
| number_of_detached_contexts_(0) {} |
| |
| HeapSpaceStatistics::HeapSpaceStatistics() |
| : space_name_(nullptr), |
| space_size_(0), |
| space_used_size_(0), |
| space_available_size_(0), |
| physical_space_size_(0) {} |
| |
| HeapObjectStatistics::HeapObjectStatistics() |
| : object_type_(nullptr), |
| object_sub_type_(nullptr), |
| object_count_(0), |
| object_size_(0) {} |
| |
| HeapCodeStatistics::HeapCodeStatistics() |
| : code_and_metadata_size_(0), |
| bytecode_and_metadata_size_(0), |
| external_script_source_size_(0) {} |
| |
| bool v8::V8::InitializeICU(const char* icu_data_file) { |
| return i::InitializeICU(icu_data_file); |
| } |
| |
| bool v8::V8::InitializeICUDefaultLocation(const char* exec_path, |
| const char* icu_data_file) { |
| return i::InitializeICUDefaultLocation(exec_path, icu_data_file); |
| } |
| |
| void v8::V8::InitializeExternalStartupData(const char* directory_path) { |
| i::InitializeExternalStartupData(directory_path); |
| } |
| |
| // static |
| void v8::V8::InitializeExternalStartupDataFromFile(const char* snapshot_blob) { |
| i::InitializeExternalStartupDataFromFile(snapshot_blob); |
| } |
| |
| const char* v8::V8::GetVersion() { return i::Version::GetVersion(); } |
| |
| #ifdef V8_VIRTUAL_MEMORY_CAGE |
| PageAllocator* v8::V8::GetVirtualMemoryCagePageAllocator() { |
| CHECK(i::GetProcessWideVirtualMemoryCage()->is_initialized()); |
| return i::GetProcessWideVirtualMemoryCage()->page_allocator(); |
| } |
| |
| size_t v8::V8::GetVirtualMemoryCageSizeInBytes() { |
| if (!i::GetProcessWideVirtualMemoryCage()->is_initialized()) { |
| return 0; |
| } else { |
| return i::GetProcessWideVirtualMemoryCage()->size(); |
| } |
| } |
| #endif |
| |
| void V8::GetSharedMemoryStatistics(SharedMemoryStatistics* statistics) { |
| i::ReadOnlyHeap::PopulateReadOnlySpaceStatistics(statistics); |
| } |
| |
| template <typename ObjectType> |
| struct InvokeBootstrapper; |
| |
| template <> |
| struct InvokeBootstrapper<i::Context> { |
| i::Handle<i::Context> Invoke( |
| i::Isolate* isolate, i::MaybeHandle<i::JSGlobalProxy> maybe_global_proxy, |
| v8::Local<v8::ObjectTemplate> global_proxy_template, |
| v8::ExtensionConfiguration* extensions, size_t context_snapshot_index, |
| v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, |
| v8::MicrotaskQueue* microtask_queue) { |
| return isolate->bootstrapper()->CreateEnvironment( |
| maybe_global_proxy, global_proxy_template, extensions, |
| context_snapshot_index, embedder_fields_deserializer, microtask_queue); |
| } |
| }; |
| |
| template <> |
| struct InvokeBootstrapper<i::JSGlobalProxy> { |
| i::Handle<i::JSGlobalProxy> Invoke( |
| i::Isolate* isolate, i::MaybeHandle<i::JSGlobalProxy> maybe_global_proxy, |
| v8::Local<v8::ObjectTemplate> global_proxy_template, |
| v8::ExtensionConfiguration* extensions, size_t context_snapshot_index, |
| v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, |
| v8::MicrotaskQueue* microtask_queue) { |
| USE(extensions); |
| USE(context_snapshot_index); |
| return isolate->bootstrapper()->NewRemoteContext(maybe_global_proxy, |
| global_proxy_template); |
| } |
| }; |
| |
| template <typename ObjectType> |
| static i::Handle<ObjectType> CreateEnvironment( |
| i::Isolate* isolate, v8::ExtensionConfiguration* extensions, |
| v8::MaybeLocal<ObjectTemplate> maybe_global_template, |
| v8::MaybeLocal<Value> maybe_global_proxy, size_t context_snapshot_index, |
| v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, |
| v8::MicrotaskQueue* microtask_queue) { |
| i::Handle<ObjectType> result; |
| |
| { |
| ENTER_V8_FOR_NEW_CONTEXT(isolate); |
| v8::Local<ObjectTemplate> proxy_template; |
| i::Handle<i::FunctionTemplateInfo> proxy_constructor; |
| i::Handle<i::FunctionTemplateInfo> global_constructor; |
| i::Handle<i::HeapObject> named_interceptor( |
| isolate->factory()->undefined_value()); |
| i::Handle<i::HeapObject> indexed_interceptor( |
| isolate->factory()->undefined_value()); |
| |
| if (!maybe_global_template.IsEmpty()) { |
| v8::Local<v8::ObjectTemplate> global_template = |
| maybe_global_template.ToLocalChecked(); |
| // Make sure that the global_template has a constructor. |
| global_constructor = EnsureConstructor(isolate, *global_template); |
| |
| // Create a fresh template for the global proxy object. |
| proxy_template = |
| ObjectTemplate::New(reinterpret_cast<v8::Isolate*>(isolate)); |
| proxy_constructor = EnsureConstructor(isolate, *proxy_template); |
| |
| // Set the global template to be the prototype template of |
| // global proxy template. |
| i::FunctionTemplateInfo::SetPrototypeTemplate( |
| isolate, proxy_constructor, Utils::OpenHandle(*global_template)); |
| |
| proxy_template->SetInternalFieldCount( |
| global_template->InternalFieldCount()); |
| |
| // Migrate security handlers from global_template to |
| // proxy_template. Temporarily removing access check |
| // information from the global template. |
| if (!global_constructor->GetAccessCheckInfo().IsUndefined(isolate)) { |
| i::FunctionTemplateInfo::SetAccessCheckInfo( |
| isolate, proxy_constructor, |
| i::handle(global_constructor->GetAccessCheckInfo(), isolate)); |
| proxy_constructor->set_needs_access_check( |
| global_constructor->needs_access_check()); |
| global_constructor->set_needs_access_check(false); |
| i::FunctionTemplateInfo::SetAccessCheckInfo( |
| isolate, global_constructor, |
| i::ReadOnlyRoots(isolate).undefined_value_handle()); |
| } |
| |
| // Same for other interceptors. If the global constructor has |
| // interceptors, we need to replace them temporarily with noop |
| // interceptors, so the map is correctly marked as having interceptors, |
| // but we don't invoke any. |
| if (!global_constructor->GetNamedPropertyHandler().IsUndefined(isolate)) { |
| named_interceptor = |
| handle(global_constructor->GetNamedPropertyHandler(), isolate); |
| i::FunctionTemplateInfo::SetNamedPropertyHandler( |
| isolate, global_constructor, |
| i::ReadOnlyRoots(isolate).noop_interceptor_info_handle()); |
| } |
| if (!global_constructor->GetIndexedPropertyHandler().IsUndefined( |
| isolate)) { |
| indexed_interceptor = |
| handle(global_constructor->GetIndexedPropertyHandler(), isolate); |
| i::FunctionTemplateInfo::SetIndexedPropertyHandler( |
| isolate, global_constructor, |
| i::ReadOnlyRoots(isolate).noop_interceptor_info_handle()); |
| } |
| } |
| |
| i::MaybeHandle<i::JSGlobalProxy> maybe_proxy; |
| if (!maybe_global_proxy.IsEmpty()) { |
| maybe_proxy = i::Handle<i::JSGlobalProxy>::cast( |
| Utils::OpenHandle(*maybe_global_proxy.ToLocalChecked())); |
| } |
| // Create the environment. |
| InvokeBootstrapper<ObjectType> invoke; |
| result = invoke.Invoke(isolate, maybe_proxy, proxy_template, extensions, |
| context_snapshot_index, embedder_fields_deserializer, |
| microtask_queue); |
| |
| // Restore the access check info and interceptors on the global template. |
| if (!maybe_global_template.IsEmpty()) { |
| DCHECK(!global_constructor.is_null()); |
| DCHECK(!proxy_constructor.is_null()); |
| i::FunctionTemplateInfo::SetAccessCheckInfo( |
| isolate, global_constructor, |
| i::handle(proxy_constructor->GetAccessCheckInfo(), isolate)); |
| global_constructor->set_needs_access_check( |
| proxy_constructor->needs_access_check()); |
| i::FunctionTemplateInfo::SetNamedPropertyHandler( |
| isolate, global_constructor, named_interceptor); |
| i::FunctionTemplateInfo::SetIndexedPropertyHandler( |
| isolate, global_constructor, indexed_interceptor); |
| } |
| } |
| // Leave V8. |
| |
| return result; |
| } |
| |
| Local<Context> NewContext( |
| v8::Isolate* external_isolate, v8::ExtensionConfiguration* extensions, |
| v8::MaybeLocal<ObjectTemplate> global_template, |
| v8::MaybeLocal<Value> global_object, size_t context_snapshot_index, |
| v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, |
| v8::MicrotaskQueue* microtask_queue) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); |
| // TODO(jkummerow): This is for crbug.com/713699. Remove it if it doesn't |
| // fail. |
| // Sanity-check that the isolate is initialized and usable. |
| CHECK(isolate->builtins()->code(i::Builtin::kIllegal).IsCode()); |
| |
| TRACE_EVENT_CALL_STATS_SCOPED(isolate, "v8", "V8.NewContext"); |
| LOG_API(isolate, Context, New); |
| i::HandleScope scope(isolate); |
| ExtensionConfiguration no_extensions; |
| if (extensions == nullptr) extensions = &no_extensions; |
| i::Handle<i::Context> env = CreateEnvironment<i::Context>( |
| isolate, extensions, global_template, global_object, |
| context_snapshot_index, embedder_fields_deserializer, microtask_queue); |
| if (env.is_null()) { |
| if (isolate->has_pending_exception()) isolate->clear_pending_exception(); |
| return Local<Context>(); |
| } |
| return Utils::ToLocal(scope.CloseAndEscape(env)); |
| } |
| |
| Local<Context> v8::Context::New( |
| v8::Isolate* external_isolate, v8::ExtensionConfiguration* extensions, |
| v8::MaybeLocal<ObjectTemplate> global_template, |
| v8::MaybeLocal<Value> global_object, |
| DeserializeInternalFieldsCallback internal_fields_deserializer, |
| v8::MicrotaskQueue* microtask_queue) { |
| return NewContext(external_isolate, extensions, global_template, |
| global_object, 0, internal_fields_deserializer, |
| microtask_queue); |
| } |
| |
| MaybeLocal<Context> v8::Context::FromSnapshot( |
| v8::Isolate* external_isolate, size_t context_snapshot_index, |
| v8::DeserializeInternalFieldsCallback embedder_fields_deserializer, |
| v8::ExtensionConfiguration* extensions, MaybeLocal<Value> global_object, |
| v8::MicrotaskQueue* microtask_queue) { |
| size_t index_including_default_context = context_snapshot_index + 1; |
| if (!i::Snapshot::HasContextSnapshot( |
| reinterpret_cast<i::Isolate*>(external_isolate), |
| index_including_default_context)) { |
| return MaybeLocal<Context>(); |
| } |
| return NewContext(external_isolate, extensions, MaybeLocal<ObjectTemplate>(), |
| global_object, index_including_default_context, |
| embedder_fields_deserializer, microtask_queue); |
| } |
| |
| MaybeLocal<Object> v8::Context::NewRemoteContext( |
| v8::Isolate* external_isolate, v8::Local<ObjectTemplate> global_template, |
| v8::MaybeLocal<v8::Value> global_object) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(external_isolate); |
| LOG_API(isolate, Context, NewRemoteContext); |
| i::HandleScope scope(isolate); |
| i::Handle<i::FunctionTemplateInfo> global_constructor = |
| EnsureConstructor(isolate, *global_template); |
| Utils::ApiCheck(global_constructor->needs_access_check(), |
| "v8::Context::NewRemoteContext", |
| "Global template needs to have access checks enabled."); |
| i::Handle<i::AccessCheckInfo> access_check_info = i::handle( |
| i::AccessCheckInfo::cast(global_constructor->GetAccessCheckInfo()), |
| isolate); |
| Utils::ApiCheck(access_check_info->named_interceptor() != i::Object(), |
| "v8::Context::NewRemoteContext", |
| "Global template needs to have access check handlers."); |
| i::Handle<i::JSObject> global_proxy = CreateEnvironment<i::JSGlobalProxy>( |
| isolate, nullptr, global_template, global_object, 0, |
| DeserializeInternalFieldsCallback(), nullptr); |
| if (global_proxy.is_null()) { |
| if (isolate->has_pending_exception()) isolate->clear_pending_exception(); |
| return MaybeLocal<Object>(); |
| } |
| return Utils::ToLocal(scope.CloseAndEscape(global_proxy)); |
| } |
| |
| void v8::Context::SetSecurityToken(Local<Value> token) { |
| i::Handle<i::Context> env = Utils::OpenHandle(this); |
| i::Handle<i::Object> token_handle = Utils::OpenHandle(*token); |
| env->set_security_token(*token_handle); |
| } |
| |
| void v8::Context::UseDefaultSecurityToken() { |
| i::Handle<i::Context> env = Utils::OpenHandle(this); |
| env->set_security_token(env->global_object()); |
| } |
| |
| Local<Value> v8::Context::GetSecurityToken() { |
| i::Handle<i::Context> env = Utils::OpenHandle(this); |
| i::Isolate* isolate = env->GetIsolate(); |
| i::Object security_token = env->security_token(); |
| i::Handle<i::Object> token_handle(security_token, isolate); |
| return Utils::ToLocal(token_handle); |
| } |
| |
| v8::Isolate* Context::GetIsolate() { |
| i::Handle<i::Context> env = Utils::OpenHandle(this); |
| return reinterpret_cast<Isolate*>(env->GetIsolate()); |
| } |
| |
| v8::MicrotaskQueue* Context::GetMicrotaskQueue() { |
| i::Handle<i::Context> env = Utils::OpenHandle(this); |
| Utils::ApiCheck(env->IsNativeContext(), "v8::Context::GetMicrotaskQueue", |
| "Must be calld on a native context"); |
| return i::Handle<i::NativeContext>::cast(env)->microtask_queue(); |
| } |
| |
| v8::Local<v8::Object> Context::Global() { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| i::Handle<i::Object> global(context->global_proxy(), isolate); |
| // TODO(chromium:324812): This should always return the global proxy |
| // but can't presently as calls to GetProtoype will return the wrong result. |
| if (i::Handle<i::JSGlobalProxy>::cast(global)->IsDetachedFrom( |
| context->global_object())) { |
| global = i::Handle<i::Object>(context->global_object(), isolate); |
| } |
| return Utils::ToLocal(i::Handle<i::JSObject>::cast(global)); |
| } |
| |
| void Context::DetachGlobal() { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| isolate->DetachGlobal(context); |
| } |
| |
| Local<v8::Object> Context::GetExtrasBindingObject() { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| i::Handle<i::JSObject> binding(context->extras_binding_object(), isolate); |
| return Utils::ToLocal(binding); |
| } |
| |
| void Context::AllowCodeGenerationFromStrings(bool allow) { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| context->set_allow_code_gen_from_strings( |
| allow ? i::ReadOnlyRoots(isolate).true_value() |
| : i::ReadOnlyRoots(isolate).false_value()); |
| } |
| |
| bool Context::IsCodeGenerationFromStringsAllowed() const { |
| i::Context context = *Utils::OpenHandle(this); |
| return !context.allow_code_gen_from_strings().IsFalse(context.GetIsolate()); |
| } |
| |
| void Context::SetErrorMessageForCodeGenerationFromStrings(Local<String> error) { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Handle<i::String> error_handle = Utils::OpenHandle(*error); |
| context->set_error_message_for_code_gen_from_strings(*error_handle); |
| } |
| |
| void Context::SetAbortScriptExecution( |
| Context::AbortScriptExecutionCallback callback) { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| if (callback == nullptr) { |
| context->set_script_execution_callback( |
| i::ReadOnlyRoots(isolate).undefined_value()); |
| } else { |
| SET_FIELD_WRAPPED(isolate, context, set_script_execution_callback, |
| callback); |
| } |
| } |
| |
| Local<Value> Context::GetContinuationPreservedEmbedderData() const { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| i::Handle<i::Object> data( |
| context->native_context().continuation_preserved_embedder_data(), |
| isolate); |
| return ToApiHandle<Object>(data); |
| } |
| |
| void Context::SetContinuationPreservedEmbedderData(Local<Value> data) { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| if (data.IsEmpty()) |
| data = v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| context->native_context().set_continuation_preserved_embedder_data( |
| *i::Handle<i::HeapObject>::cast(Utils::OpenHandle(*data))); |
| } |
| |
| void v8::Context::SetPromiseHooks(Local<Function> init_hook, |
| Local<Function> before_hook, |
| Local<Function> after_hook, |
| Local<Function> resolve_hook) { |
| i::Handle<i::Context> context = Utils::OpenHandle(this); |
| i::Isolate* isolate = context->GetIsolate(); |
| |
| i::Handle<i::Object> init = isolate->factory()->undefined_value(); |
| i::Handle<i::Object> before = isolate->factory()->undefined_value(); |
| i::Handle<i::Object> after = isolate->factory()->undefined_value(); |
| i::Handle<i::Object> resolve = isolate->factory()->undefined_value(); |
| |
| bool has_hook = false; |
| |
| if (!init_hook.IsEmpty()) { |
| init = Utils::OpenHandle(*init_hook); |
| has_hook = true; |
| } |
| if (!before_hook.IsEmpty()) { |
| before = Utils::OpenHandle(*before_hook); |
| has_hook = true; |
| } |
| if (!after_hook.IsEmpty()) { |
| after = Utils::OpenHandle(*after_hook); |
| has_hook = true; |
| } |
| if (!resolve_hook.IsEmpty()) { |
| resolve = Utils::OpenHandle(*resolve_hook); |
| has_hook = true; |
| } |
| |
| isolate->SetHasContextPromiseHooks(has_hook); |
| |
| context->native_context().set_promise_hook_init_function(*init); |
| context->native_context().set_promise_hook_before_function(*before); |
| context->native_context().set_promise_hook_after_function(*after); |
| context->native_context().set_promise_hook_resolve_function(*resolve); |
| } |
| |
| MaybeLocal<Context> metrics::Recorder::GetContext( |
| Isolate* isolate, metrics::Recorder::ContextId id) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| return i_isolate->GetContextFromRecorderContextId(id); |
| } |
| |
| metrics::Recorder::ContextId metrics::Recorder::GetContextId( |
| Local<Context> context) { |
| i::Handle<i::Context> i_context = Utils::OpenHandle(*context); |
| i::Isolate* isolate = i_context->GetIsolate(); |
| return isolate->GetOrRegisterRecorderContextId( |
| handle(i_context->native_context(), isolate)); |
| } |
| |
| metrics::LongTaskStats metrics::LongTaskStats::Get(v8::Isolate* isolate) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| return *i_isolate->GetCurrentLongTaskStats(); |
| } |
| |
| namespace { |
| i::Address* GetSerializedDataFromFixedArray(i::Isolate* isolate, |
| i::FixedArray list, size_t index) { |
| if (index < static_cast<size_t>(list.length())) { |
| int int_index = static_cast<int>(index); |
| i::Object object = list.get(int_index); |
| if (!object.IsTheHole(isolate)) { |
| list.set_the_hole(isolate, int_index); |
| // Shrink the list so that the last element is not the hole (unless it's |
| // the first element, because we don't want to end up with a non-canonical |
| // empty FixedArray). |
| int last = list.length() - 1; |
| while (last >= 0 && list.is_the_hole(isolate, last)) last--; |
| if (last != -1) list.Shrink(isolate, last + 1); |
| return i::Handle<i::Object>(object, isolate).location(); |
| } |
| } |
| return nullptr; |
| } |
| } // anonymous namespace |
| |
| i::Address* Context::GetDataFromSnapshotOnce(size_t index) { |
| auto context = Utils::OpenHandle(this); |
| i::Isolate* i_isolate = context->GetIsolate(); |
| i::FixedArray list = context->serialized_objects(); |
| return GetSerializedDataFromFixedArray(i_isolate, list, index); |
| } |
| |
| MaybeLocal<v8::Object> ObjectTemplate::NewInstance(Local<Context> context) { |
| PREPARE_FOR_EXECUTION(context, ObjectTemplate, NewInstance, Object); |
| auto self = Utils::OpenHandle(this); |
| Local<Object> result; |
| has_pending_exception = !ToLocal<Object>( |
| i::ApiNatives::InstantiateObject(isolate, self), &result); |
| RETURN_ON_FAILED_EXECUTION(Object); |
| RETURN_ESCAPED(result); |
| } |
| |
| void v8::ObjectTemplate::CheckCast(Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsObjectTemplateInfo(), "v8::ObjectTemplate::Cast", |
| "Value is not an ObjectTemplate"); |
| } |
| |
| void v8::FunctionTemplate::CheckCast(Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsFunctionTemplateInfo(), "v8::FunctionTemplate::Cast", |
| "Value is not a FunctionTemplate"); |
| } |
| |
| void v8::Signature::CheckCast(Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsFunctionTemplateInfo(), "v8::Signature::Cast", |
| "Value is not a Signature"); |
| } |
| |
| void v8::AccessorSignature::CheckCast(Data* that) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(that); |
| Utils::ApiCheck(obj->IsFunctionTemplateInfo(), "v8::AccessorSignature::Cast", |
| "Value is not an AccessorSignature"); |
| } |
| |
| MaybeLocal<v8::Function> FunctionTemplate::GetFunction(Local<Context> context) { |
| PREPARE_FOR_EXECUTION(context, FunctionTemplate, GetFunction, Function); |
| auto self = Utils::OpenHandle(this); |
| Local<Function> result; |
| has_pending_exception = |
| !ToLocal<Function>(i::ApiNatives::InstantiateFunction(self), &result); |
| RETURN_ON_FAILED_EXECUTION(Function); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<v8::Object> FunctionTemplate::NewRemoteInstance() { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| LOG_API(isolate, FunctionTemplate, NewRemoteInstance); |
| i::HandleScope scope(isolate); |
| i::Handle<i::FunctionTemplateInfo> constructor = |
| EnsureConstructor(isolate, *InstanceTemplate()); |
| Utils::ApiCheck(constructor->needs_access_check(), |
| "v8::FunctionTemplate::NewRemoteInstance", |
| "InstanceTemplate needs to have access checks enabled."); |
| i::Handle<i::AccessCheckInfo> access_check_info = i::handle( |
| i::AccessCheckInfo::cast(constructor->GetAccessCheckInfo()), isolate); |
| Utils::ApiCheck(access_check_info->named_interceptor() != i::Object(), |
| "v8::FunctionTemplate::NewRemoteInstance", |
| "InstanceTemplate needs to have access check handlers."); |
| i::Handle<i::JSObject> object; |
| if (!i::ApiNatives::InstantiateRemoteObject( |
| Utils::OpenHandle(*InstanceTemplate())) |
| .ToHandle(&object)) { |
| if (isolate->has_pending_exception()) { |
| isolate->OptionalRescheduleException(true); |
| } |
| return MaybeLocal<Object>(); |
| } |
| return Utils::ToLocal(scope.CloseAndEscape(object)); |
| } |
| |
| bool FunctionTemplate::HasInstance(v8::Local<v8::Value> value) { |
| auto self = Utils::OpenHandle(this); |
| auto obj = Utils::OpenHandle(*value); |
| if (obj->IsJSObject() && self->IsTemplateFor(i::JSObject::cast(*obj))) { |
| return true; |
| } |
| if (obj->IsJSGlobalProxy()) { |
| // If it's a global proxy, then test with the global object. Note that the |
| // inner global object may not necessarily be a JSGlobalObject. |
| i::PrototypeIterator iter(self->GetIsolate(), |
| i::JSObject::cast(*obj).map()); |
| // The global proxy should always have a prototype, as it is a bug to call |
| // this on a detached JSGlobalProxy. |
| DCHECK(!iter.IsAtEnd()); |
| return self->IsTemplateFor(iter.GetCurrent<i::JSObject>()); |
| } |
| return false; |
| } |
| |
| bool FunctionTemplate::IsLeafTemplateForApiObject( |
| v8::Local<v8::Value> value) const { |
| i::DisallowGarbageCollection no_gc; |
| |
| i::Object object = *Utils::OpenHandle(*value); |
| |
| auto self = Utils::OpenHandle(this); |
| return self->IsLeafTemplateForApiObject(object); |
| } |
| |
| Local<External> v8::External::New(Isolate* isolate, void* value) { |
| STATIC_ASSERT(sizeof(value) == sizeof(i::Address)); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, External, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::JSObject> external = i_isolate->factory()->NewExternal(value); |
| return Utils::ExternalToLocal(external); |
| } |
| |
| void* External::Value() const { |
| return ExternalValue(*Utils::OpenHandle(this)); |
| } |
| |
| // anonymous namespace for string creation helper functions |
| namespace { |
| |
| inline int StringLength(const char* string) { |
| size_t len = strlen(string); |
| CHECK_GE(i::kMaxInt, len); |
| return static_cast<int>(len); |
| } |
| |
| inline int StringLength(const uint8_t* string) { |
| return StringLength(reinterpret_cast<const char*>(string)); |
| } |
| |
| inline int StringLength(const uint16_t* string) { |
| size_t length = 0; |
| while (string[length] != '\0') length++; |
| CHECK_GE(i::kMaxInt, length); |
| return static_cast<int>(length); |
| } |
| |
| V8_WARN_UNUSED_RESULT |
| inline i::MaybeHandle<i::String> NewString(i::Factory* factory, |
| NewStringType type, |
| base::Vector<const char> string) { |
| if (type == NewStringType::kInternalized) { |
| return factory->InternalizeUtf8String(string); |
| } |
| return factory->NewStringFromUtf8(string); |
| } |
| |
| V8_WARN_UNUSED_RESULT |
| inline i::MaybeHandle<i::String> NewString(i::Factory* factory, |
| NewStringType type, |
| base::Vector<const uint8_t> string) { |
| if (type == NewStringType::kInternalized) { |
| return factory->InternalizeString(string); |
| } |
| return factory->NewStringFromOneByte(string); |
| } |
| |
| V8_WARN_UNUSED_RESULT |
| inline i::MaybeHandle<i::String> NewString( |
| i::Factory* factory, NewStringType type, |
| base::Vector<const uint16_t> string) { |
| if (type == NewStringType::kInternalized) { |
| return factory->InternalizeString(string); |
| } |
| return factory->NewStringFromTwoByte(string); |
| } |
| |
| STATIC_ASSERT(v8::String::kMaxLength == i::String::kMaxLength); |
| |
| } // anonymous namespace |
| |
| // TODO(dcarney): throw a context free exception. |
| #define NEW_STRING(isolate, class_name, function_name, Char, data, type, \ |
| length) \ |
| MaybeLocal<String> result; \ |
| if (length == 0) { \ |
| result = String::Empty(isolate); \ |
| } else if (length > i::String::kMaxLength) { \ |
| result = MaybeLocal<String>(); \ |
| } else { \ |
| i::Isolate* i_isolate = reinterpret_cast<internal::Isolate*>(isolate); \ |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); \ |
| LOG_API(i_isolate, class_name, function_name); \ |
| if (length < 0) length = StringLength(data); \ |
| i::Handle<i::String> handle_result = \ |
| NewString(i_isolate->factory(), type, \ |
| base::Vector<const Char>(data, length)) \ |
| .ToHandleChecked(); \ |
| result = Utils::ToLocal(handle_result); \ |
| } |
| |
| Local<String> String::NewFromUtf8Literal(Isolate* isolate, const char* literal, |
| NewStringType type, int length) { |
| DCHECK_LE(length, i::String::kMaxLength); |
| i::Isolate* i_isolate = reinterpret_cast<internal::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| LOG_API(i_isolate, String, NewFromUtf8Literal); |
| i::Handle<i::String> handle_result = |
| NewString(i_isolate->factory(), type, |
| base::Vector<const char>(literal, length)) |
| .ToHandleChecked(); |
| return Utils::ToLocal(handle_result); |
| } |
| |
| MaybeLocal<String> String::NewFromUtf8(Isolate* isolate, const char* data, |
| NewStringType type, int length) { |
| NEW_STRING(isolate, String, NewFromUtf8, char, data, type, length); |
| return result; |
| } |
| |
| MaybeLocal<String> String::NewFromOneByte(Isolate* isolate, const uint8_t* data, |
| NewStringType type, int length) { |
| NEW_STRING(isolate, String, NewFromOneByte, uint8_t, data, type, length); |
| return result; |
| } |
| |
| MaybeLocal<String> String::NewFromTwoByte(Isolate* isolate, |
| const uint16_t* data, |
| NewStringType type, int length) { |
| NEW_STRING(isolate, String, NewFromTwoByte, uint16_t, data, type, length); |
| return result; |
| } |
| |
| Local<String> v8::String::Concat(Isolate* v8_isolate, Local<String> left, |
| Local<String> right) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| i::Handle<i::String> left_string = Utils::OpenHandle(*left); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| LOG_API(isolate, String, Concat); |
| i::Handle<i::String> right_string = Utils::OpenHandle(*right); |
| // If we are steering towards a range error, do not wait for the error to be |
| // thrown, and return the null handle instead. |
| if (left_string->length() + right_string->length() > i::String::kMaxLength) { |
| return Local<String>(); |
| } |
| i::Handle<i::String> result = isolate->factory() |
| ->NewConsString(left_string, right_string) |
| .ToHandleChecked(); |
| return Utils::ToLocal(result); |
| } |
| |
| MaybeLocal<String> v8::String::NewExternalTwoByte( |
| Isolate* isolate, v8::String::ExternalStringResource* resource) { |
| CHECK(resource && resource->data()); |
| // TODO(dcarney): throw a context free exception. |
| if (resource->length() > static_cast<size_t>(i::String::kMaxLength)) { |
| return MaybeLocal<String>(); |
| } |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| LOG_API(i_isolate, String, NewExternalTwoByte); |
| if (resource->length() > 0) { |
| i::Handle<i::String> string = i_isolate->factory() |
| ->NewExternalStringFromTwoByte(resource) |
| .ToHandleChecked(); |
| return Utils::ToLocal(string); |
| } else { |
| // The resource isn't going to be used, free it immediately. |
| resource->Dispose(); |
| return Utils::ToLocal(i_isolate->factory()->empty_string()); |
| } |
| } |
| |
| MaybeLocal<String> v8::String::NewExternalOneByte( |
| Isolate* isolate, v8::String::ExternalOneByteStringResource* resource) { |
| CHECK_NOT_NULL(resource); |
| // TODO(dcarney): throw a context free exception. |
| if (resource->length() > static_cast<size_t>(i::String::kMaxLength)) { |
| return MaybeLocal<String>(); |
| } |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| LOG_API(i_isolate, String, NewExternalOneByte); |
| if (resource->length() == 0) { |
| // The resource isn't going to be used, free it immediately. |
| resource->Dispose(); |
| return Utils::ToLocal(i_isolate->factory()->empty_string()); |
| } |
| CHECK_NOT_NULL(resource->data()); |
| i::Handle<i::String> string = i_isolate->factory() |
| ->NewExternalStringFromOneByte(resource) |
| .ToHandleChecked(); |
| return Utils::ToLocal(string); |
| } |
| |
| bool v8::String::MakeExternal(v8::String::ExternalStringResource* resource) { |
| i::DisallowGarbageCollection no_gc; |
| |
| i::String obj = *Utils::OpenHandle(this); |
| |
| if (obj.IsThinString()) { |
| obj = i::ThinString::cast(obj).actual(); |
| } |
| |
| if (!obj.SupportsExternalization()) { |
| return false; |
| } |
| |
| // It is safe to call GetIsolateFromWritableHeapObject because |
| // SupportsExternalization already checked that the object is writable. |
| i::Isolate* isolate = i::GetIsolateFromWritableObject(obj); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| |
| CHECK(resource && resource->data()); |
| |
| bool result = obj.MakeExternal(resource); |
| DCHECK(result); |
| DCHECK(obj.IsExternalString()); |
| return result; |
| } |
| |
| bool v8::String::MakeExternal( |
| v8::String::ExternalOneByteStringResource* resource) { |
| i::DisallowGarbageCollection no_gc; |
| |
| i::String obj = *Utils::OpenHandle(this); |
| |
| if (obj.IsThinString()) { |
| obj = i::ThinString::cast(obj).actual(); |
| } |
| |
| if (!obj.SupportsExternalization()) { |
| return false; |
| } |
| |
| // It is safe to call GetIsolateFromWritableHeapObject because |
| // SupportsExternalization already checked that the object is writable. |
| i::Isolate* isolate = i::GetIsolateFromWritableObject(obj); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| |
| CHECK(resource && resource->data()); |
| |
| bool result = obj.MakeExternal(resource); |
| DCHECK_IMPLIES(result, obj.IsExternalString()); |
| return result; |
| } |
| |
| bool v8::String::CanMakeExternal() const { |
| i::String obj = *Utils::OpenHandle(this); |
| |
| if (obj.IsThinString()) { |
| obj = i::ThinString::cast(obj).actual(); |
| } |
| |
| if (!obj.SupportsExternalization()) { |
| return false; |
| } |
| |
| // Only old space strings should be externalized. |
| return !i::Heap::InYoungGeneration(obj); |
| } |
| |
| bool v8::String::StringEquals(Local<String> that) const { |
| auto self = Utils::OpenHandle(this); |
| auto other = Utils::OpenHandle(*that); |
| return self->Equals(*other); |
| } |
| |
| Isolate* v8::Object::GetIsolate() { |
| i::Isolate* i_isolate = Utils::OpenHandle(this)->GetIsolate(); |
| return reinterpret_cast<Isolate*>(i_isolate); |
| } |
| |
| Local<v8::Object> v8::Object::New(Isolate* isolate) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, Object, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::JSObject> obj = |
| i_isolate->factory()->NewJSObject(i_isolate->object_function()); |
| return Utils::ToLocal(obj); |
| } |
| |
| namespace { |
| |
| // TODO(v8:7569): This is a workaround for the Handle vs MaybeHandle difference |
| // in the return types of the different Add functions: |
| // OrderedNameDictionary::Add returns MaybeHandle, NameDictionary::Add returns |
| // Handle. |
| template <typename T> |
| i::Handle<T> ToHandle(i::Handle<T> h) { |
| return h; |
| } |
| template <typename T> |
| i::Handle<T> ToHandle(i::MaybeHandle<T> h) { |
| return h.ToHandleChecked(); |
| } |
| |
| template <typename Dictionary> |
| void AddPropertiesAndElementsToObject(i::Isolate* i_isolate, |
| i::Handle<Dictionary>& properties, |
| i::Handle<i::FixedArrayBase>& elements, |
| Local<Name>* names, Local<Value>* values, |
| size_t length) { |
| for (size_t i = 0; i < length; ++i) { |
| i::Handle<i::Name> name = Utils::OpenHandle(*names[i]); |
| i::Handle<i::Object> value = Utils::OpenHandle(*values[i]); |
| |
| // See if the {name} is a valid array index, in which case we need to |
| // add the {name}/{value} pair to the {elements}, otherwise they end |
| // up in the {properties} backing store. |
| uint32_t index; |
| if (name->AsArrayIndex(&index)) { |
| // If this is the first element, allocate a proper |
| // dictionary elements backing store for {elements}. |
| if (!elements->IsNumberDictionary()) { |
| elements = |
| i::NumberDictionary::New(i_isolate, static_cast<int>(length)); |
| } |
| elements = i::NumberDictionary::Set( |
| i_isolate, i::Handle<i::NumberDictionary>::cast(elements), index, |
| value); |
| } else { |
| // Internalize the {name} first. |
| name = i_isolate->factory()->InternalizeName(name); |
| i::InternalIndex const entry = properties->FindEntry(i_isolate, name); |
| if (entry.is_not_found()) { |
| // Add the {name}/{value} pair as a new entry. |
| properties = ToHandle(Dictionary::Add( |
| i_isolate, properties, name, value, i::PropertyDetails::Empty())); |
| } else { |
| // Overwrite the {entry} with the {value}. |
| properties->ValueAtPut(entry, *value); |
| } |
| } |
| } |
| } |
| |
| } // namespace |
| |
| Local<v8::Object> v8::Object::New(Isolate* isolate, |
| Local<Value> prototype_or_null, |
| Local<Name>* names, Local<Value>* values, |
| size_t length) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Handle<i::Object> proto = Utils::OpenHandle(*prototype_or_null); |
| if (!Utils::ApiCheck(proto->IsNull() || proto->IsJSReceiver(), |
| "v8::Object::New", "prototype must be null or object")) { |
| return Local<v8::Object>(); |
| } |
| LOG_API(i_isolate, Object, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| |
| i::Handle<i::FixedArrayBase> elements = |
| i_isolate->factory()->empty_fixed_array(); |
| |
| // We assume that this API is mostly used to create objects with named |
| // properties, and so we default to creating a properties backing store |
| // large enough to hold all of them, while we start with no elements |
| // (see http://bit.ly/v8-fast-object-create-cpp for the motivation). |
| if (V8_ENABLE_SWISS_NAME_DICTIONARY_BOOL) { |
| i::Handle<i::SwissNameDictionary> properties = |
| i_isolate->factory()->NewSwissNameDictionary(static_cast<int>(length)); |
| AddPropertiesAndElementsToObject(i_isolate, properties, elements, names, |
| values, length); |
| i::Handle<i::JSObject> obj = |
| i_isolate->factory()->NewSlowJSObjectWithPropertiesAndElements( |
| i::Handle<i::HeapObject>::cast(proto), properties, elements); |
| return Utils::ToLocal(obj); |
| } else { |
| i::Handle<i::NameDictionary> properties = |
| i::NameDictionary::New(i_isolate, static_cast<int>(length)); |
| AddPropertiesAndElementsToObject(i_isolate, properties, elements, names, |
| values, length); |
| i::Handle<i::JSObject> obj = |
| i_isolate->factory()->NewSlowJSObjectWithPropertiesAndElements( |
| i::Handle<i::HeapObject>::cast(proto), properties, elements); |
| return Utils::ToLocal(obj); |
| } |
| } |
| |
| Local<v8::Value> v8::NumberObject::New(Isolate* isolate, double value) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, NumberObject, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::Object> number = i_isolate->factory()->NewNumber(value); |
| i::Handle<i::Object> obj = |
| i::Object::ToObject(i_isolate, number).ToHandleChecked(); |
| return Utils::ToLocal(obj); |
| } |
| |
| double v8::NumberObject::ValueOf() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| i::Handle<i::JSPrimitiveWrapper> js_primitive_wrapper = |
| i::Handle<i::JSPrimitiveWrapper>::cast(obj); |
| i::Isolate* isolate = js_primitive_wrapper->GetIsolate(); |
| LOG_API(isolate, NumberObject, NumberValue); |
| return js_primitive_wrapper->value().Number(); |
| } |
| |
| Local<v8::Value> v8::BigIntObject::New(Isolate* isolate, int64_t value) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, BigIntObject, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::Object> bigint = i::BigInt::FromInt64(i_isolate, value); |
| i::Handle<i::Object> obj = |
| i::Object::ToObject(i_isolate, bigint).ToHandleChecked(); |
| return Utils::ToLocal(obj); |
| } |
| |
| Local<v8::BigInt> v8::BigIntObject::ValueOf() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| i::Handle<i::JSPrimitiveWrapper> js_primitive_wrapper = |
| i::Handle<i::JSPrimitiveWrapper>::cast(obj); |
| i::Isolate* isolate = js_primitive_wrapper->GetIsolate(); |
| LOG_API(isolate, BigIntObject, BigIntValue); |
| return Utils::ToLocal(i::Handle<i::BigInt>( |
| i::BigInt::cast(js_primitive_wrapper->value()), isolate)); |
| } |
| |
| Local<v8::Value> v8::BooleanObject::New(Isolate* isolate, bool value) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, BooleanObject, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::Object> boolean(value |
| ? i::ReadOnlyRoots(i_isolate).true_value() |
| : i::ReadOnlyRoots(i_isolate).false_value(), |
| i_isolate); |
| i::Handle<i::Object> obj = |
| i::Object::ToObject(i_isolate, boolean).ToHandleChecked(); |
| return Utils::ToLocal(obj); |
| } |
| |
| bool v8::BooleanObject::ValueOf() const { |
| i::Object obj = *Utils::OpenHandle(this); |
| i::JSPrimitiveWrapper js_primitive_wrapper = i::JSPrimitiveWrapper::cast(obj); |
| i::Isolate* isolate = js_primitive_wrapper.GetIsolate(); |
| LOG_API(isolate, BooleanObject, BooleanValue); |
| return js_primitive_wrapper.value().IsTrue(isolate); |
| } |
| |
| Local<v8::Value> v8::StringObject::New(Isolate* v8_isolate, |
| Local<String> value) { |
| i::Handle<i::String> string = Utils::OpenHandle(*value); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| LOG_API(isolate, StringObject, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::Object> obj = |
| i::Object::ToObject(isolate, string).ToHandleChecked(); |
| return Utils::ToLocal(obj); |
| } |
| |
| Local<v8::String> v8::StringObject::ValueOf() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| i::Handle<i::JSPrimitiveWrapper> js_primitive_wrapper = |
| i::Handle<i::JSPrimitiveWrapper>::cast(obj); |
| i::Isolate* isolate = js_primitive_wrapper->GetIsolate(); |
| LOG_API(isolate, StringObject, StringValue); |
| return Utils::ToLocal(i::Handle<i::String>( |
| i::String::cast(js_primitive_wrapper->value()), isolate)); |
| } |
| |
| Local<v8::Value> v8::SymbolObject::New(Isolate* isolate, Local<Symbol> value) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, SymbolObject, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::Object> obj = |
| i::Object::ToObject(i_isolate, Utils::OpenHandle(*value)) |
| .ToHandleChecked(); |
| return Utils::ToLocal(obj); |
| } |
| |
| Local<v8::Symbol> v8::SymbolObject::ValueOf() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| i::Handle<i::JSPrimitiveWrapper> js_primitive_wrapper = |
| i::Handle<i::JSPrimitiveWrapper>::cast(obj); |
| i::Isolate* isolate = js_primitive_wrapper->GetIsolate(); |
| LOG_API(isolate, SymbolObject, SymbolValue); |
| return Utils::ToLocal(i::Handle<i::Symbol>( |
| i::Symbol::cast(js_primitive_wrapper->value()), isolate)); |
| } |
| |
| MaybeLocal<v8::Value> v8::Date::New(Local<Context> context, double time) { |
| if (std::isnan(time)) { |
| // Introduce only canonical NaN value into the VM, to avoid signaling NaNs. |
| time = std::numeric_limits<double>::quiet_NaN(); |
| } |
| PREPARE_FOR_EXECUTION(context, Date, New, Value); |
| Local<Value> result; |
| has_pending_exception = !ToLocal<Value>( |
| i::JSDate::New(isolate->date_function(), isolate->date_function(), time), |
| &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| double v8::Date::ValueOf() const { |
| i::Handle<i::Object> obj = Utils::OpenHandle(this); |
| i::Handle<i::JSDate> jsdate = i::Handle<i::JSDate>::cast(obj); |
| i::Isolate* isolate = jsdate->GetIsolate(); |
| LOG_API(isolate, Date, NumberValue); |
| return jsdate->value().Number(); |
| } |
| |
| // Assert that the static TimeZoneDetection cast in |
| // DateTimeConfigurationChangeNotification is valid. |
| #define TIME_ZONE_DETECTION_ASSERT_EQ(value) \ |
| STATIC_ASSERT( \ |
| static_cast<int>(v8::Isolate::TimeZoneDetection::value) == \ |
| static_cast<int>(base::TimezoneCache::TimeZoneDetection::value)); |
| TIME_ZONE_DETECTION_ASSERT_EQ(kSkip) |
| TIME_ZONE_DETECTION_ASSERT_EQ(kRedetect) |
| #undef TIME_ZONE_DETECTION_ASSERT_EQ |
| |
| MaybeLocal<v8::RegExp> v8::RegExp::New(Local<Context> context, |
| Local<String> pattern, Flags flags) { |
| PREPARE_FOR_EXECUTION(context, RegExp, New, RegExp); |
| Local<v8::RegExp> result; |
| has_pending_exception = |
| !ToLocal<RegExp>(i::JSRegExp::New(isolate, Utils::OpenHandle(*pattern), |
| static_cast<i::JSRegExp::Flags>(flags)), |
| &result); |
| RETURN_ON_FAILED_EXECUTION(RegExp); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<v8::RegExp> v8::RegExp::NewWithBacktrackLimit( |
| Local<Context> context, Local<String> pattern, Flags flags, |
| uint32_t backtrack_limit) { |
| Utils::ApiCheck(i::Smi::IsValid(backtrack_limit), |
| "v8::RegExp::NewWithBacktrackLimit", |
| "backtrack_limit is too large or too small."); |
| Utils::ApiCheck(backtrack_limit != i::JSRegExp::kNoBacktrackLimit, |
| "v8::RegExp::NewWithBacktrackLimit", |
| "Must set backtrack_limit"); |
| PREPARE_FOR_EXECUTION(context, RegExp, New, RegExp); |
| Local<v8::RegExp> result; |
| has_pending_exception = !ToLocal<RegExp>( |
| i::JSRegExp::New(isolate, Utils::OpenHandle(*pattern), |
| static_cast<i::JSRegExp::Flags>(flags), backtrack_limit), |
| &result); |
| RETURN_ON_FAILED_EXECUTION(RegExp); |
| RETURN_ESCAPED(result); |
| } |
| |
| Local<v8::String> v8::RegExp::GetSource() const { |
| i::Handle<i::JSRegExp> obj = Utils::OpenHandle(this); |
| return Utils::ToLocal( |
| i::Handle<i::String>(obj->EscapedPattern(), obj->GetIsolate())); |
| } |
| |
| // Assert that the static flags cast in GetFlags is valid. |
| #define REGEXP_FLAG_ASSERT_EQ(flag) \ |
| STATIC_ASSERT(static_cast<int>(v8::RegExp::flag) == \ |
| static_cast<int>(i::JSRegExp::flag)) |
| REGEXP_FLAG_ASSERT_EQ(kNone); |
| REGEXP_FLAG_ASSERT_EQ(kGlobal); |
| REGEXP_FLAG_ASSERT_EQ(kIgnoreCase); |
| REGEXP_FLAG_ASSERT_EQ(kMultiline); |
| REGEXP_FLAG_ASSERT_EQ(kSticky); |
| REGEXP_FLAG_ASSERT_EQ(kUnicode); |
| REGEXP_FLAG_ASSERT_EQ(kHasIndices); |
| REGEXP_FLAG_ASSERT_EQ(kLinear); |
| #undef REGEXP_FLAG_ASSERT_EQ |
| |
| v8::RegExp::Flags v8::RegExp::GetFlags() const { |
| i::Handle<i::JSRegExp> obj = Utils::OpenHandle(this); |
| return RegExp::Flags(static_cast<int>(obj->flags())); |
| } |
| |
| MaybeLocal<v8::Object> v8::RegExp::Exec(Local<Context> context, |
| Local<v8::String> subject) { |
| PREPARE_FOR_EXECUTION(context, RegExp, Exec, Object); |
| |
| i::Handle<i::JSRegExp> regexp = Utils::OpenHandle(this); |
| i::Handle<i::String> subject_string = Utils::OpenHandle(*subject); |
| |
| // TODO(jgruber): RegExpUtils::RegExpExec was not written with efficiency in |
| // mind. It fetches the 'exec' property and then calls it through JSEntry. |
| // Unfortunately, this is currently the only full implementation of |
| // RegExp.prototype.exec available in C++. |
| Local<v8::Object> result; |
| has_pending_exception = !ToLocal<Object>( |
| i::RegExpUtils::RegExpExec(isolate, regexp, subject_string, |
| isolate->factory()->undefined_value()), |
| &result); |
| |
| RETURN_ON_FAILED_EXECUTION(Object); |
| RETURN_ESCAPED(result); |
| } |
| |
| Local<v8::Array> v8::Array::New(Isolate* isolate, int length) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, Array, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| int real_length = length > 0 ? length : 0; |
| i::Handle<i::JSArray> obj = i_isolate->factory()->NewJSArray(real_length); |
| i::Handle<i::Object> length_obj = |
| i_isolate->factory()->NewNumberFromInt(real_length); |
| obj->set_length(*length_obj); |
| return Utils::ToLocal(obj); |
| } |
| |
| Local<v8::Array> v8::Array::New(Isolate* isolate, Local<Value>* elements, |
| size_t length) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Factory* factory = i_isolate->factory(); |
| LOG_API(i_isolate, Array, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| int len = static_cast<int>(length); |
| |
| i::Handle<i::FixedArray> result = factory->NewFixedArray(len); |
| for (int i = 0; i < len; i++) { |
| i::Handle<i::Object> element = Utils::OpenHandle(*elements[i]); |
| result->set(i, *element); |
| } |
| |
| return Utils::ToLocal( |
| factory->NewJSArrayWithElements(result, i::PACKED_ELEMENTS, len)); |
| } |
| |
| uint32_t v8::Array::Length() const { |
| i::Handle<i::JSArray> obj = Utils::OpenHandle(this); |
| i::Object length = obj->length(); |
| if (length.IsSmi()) { |
| return i::Smi::ToInt(length); |
| } else { |
| return static_cast<uint32_t>(length.Number()); |
| } |
| } |
| |
| Local<v8::Map> v8::Map::New(Isolate* isolate) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, Map, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::JSMap> obj = i_isolate->factory()->NewJSMap(); |
| return Utils::ToLocal(obj); |
| } |
| |
| size_t v8::Map::Size() const { |
| i::Handle<i::JSMap> obj = Utils::OpenHandle(this); |
| return i::OrderedHashMap::cast(obj->table()).NumberOfElements(); |
| } |
| |
| void Map::Clear() { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| LOG_API(isolate, Map, Clear); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::JSMap::Clear(isolate, self); |
| } |
| |
| MaybeLocal<Value> Map::Get(Local<Context> context, Local<Value> key) { |
| PREPARE_FOR_EXECUTION(context, Map, Get, Value); |
| auto self = Utils::OpenHandle(this); |
| Local<Value> result; |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; |
| has_pending_exception = |
| !ToLocal<Value>(i::Execution::CallBuiltin(isolate, isolate->map_get(), |
| self, arraysize(argv), argv), |
| &result); |
| RETURN_ON_FAILED_EXECUTION(Value); |
| RETURN_ESCAPED(result); |
| } |
| |
| MaybeLocal<Map> Map::Set(Local<Context> context, Local<Value> key, |
| Local<Value> value) { |
| PREPARE_FOR_EXECUTION(context, Map, Set, Map); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> result; |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key), |
| Utils::OpenHandle(*value)}; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->map_set(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(Map); |
| RETURN_ESCAPED(Local<Map>::Cast(Utils::ToLocal(result))); |
| } |
| |
| Maybe<bool> Map::Has(Local<Context> context, Local<Value> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Map, Has, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> result; |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->map_has(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(result->IsTrue(isolate)); |
| } |
| |
| Maybe<bool> Map::Delete(Local<Context> context, Local<Value> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Map, Delete, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> result; |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->map_delete(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(result->IsTrue(isolate)); |
| } |
| |
| namespace { |
| |
| enum class MapAsArrayKind { |
| kEntries = i::JS_MAP_KEY_VALUE_ITERATOR_TYPE, |
| kKeys = i::JS_MAP_KEY_ITERATOR_TYPE, |
| kValues = i::JS_MAP_VALUE_ITERATOR_TYPE |
| }; |
| |
| enum class SetAsArrayKind { |
| kEntries = i::JS_SET_KEY_VALUE_ITERATOR_TYPE, |
| kValues = i::JS_SET_VALUE_ITERATOR_TYPE |
| }; |
| |
| i::Handle<i::JSArray> MapAsArray(i::Isolate* isolate, i::Object table_obj, |
| int offset, MapAsArrayKind kind) { |
| i::Factory* factory = isolate->factory(); |
| i::Handle<i::OrderedHashMap> table(i::OrderedHashMap::cast(table_obj), |
| isolate); |
| const bool collect_keys = |
| kind == MapAsArrayKind::kEntries || kind == MapAsArrayKind::kKeys; |
| const bool collect_values = |
| kind == MapAsArrayKind::kEntries || kind == MapAsArrayKind::kValues; |
| int capacity = table->UsedCapacity(); |
| int max_length = |
| (capacity - offset) * ((collect_keys && collect_values) ? 2 : 1); |
| i::Handle<i::FixedArray> result = factory->NewFixedArray(max_length); |
| int result_index = 0; |
| { |
| i::DisallowGarbageCollection no_gc; |
| i::Oddball the_hole = i::ReadOnlyRoots(isolate).the_hole_value(); |
| for (int i = offset; i < capacity; ++i) { |
| i::InternalIndex entry(i); |
| i::Object key = table->KeyAt(entry); |
| if (key == the_hole) continue; |
| if (collect_keys) result->set(result_index++, key); |
| if (collect_values) result->set(result_index++, table->ValueAt(entry)); |
| } |
| } |
| DCHECK_GE(max_length, result_index); |
| if (result_index == 0) return factory->NewJSArray(0); |
| result->Shrink(isolate, result_index); |
| return factory->NewJSArrayWithElements(result, i::PACKED_ELEMENTS, |
| result_index); |
| } |
| |
| } // namespace |
| |
| Local<Array> Map::AsArray() const { |
| i::Handle<i::JSMap> obj = Utils::OpenHandle(this); |
| i::Isolate* isolate = obj->GetIsolate(); |
| LOG_API(isolate, Map, AsArray); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return Utils::ToLocal( |
| MapAsArray(isolate, obj->table(), 0, MapAsArrayKind::kEntries)); |
| } |
| |
| Local<v8::Set> v8::Set::New(Isolate* isolate) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, Set, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::JSSet> obj = i_isolate->factory()->NewJSSet(); |
| return Utils::ToLocal(obj); |
| } |
| |
| size_t v8::Set::Size() const { |
| i::Handle<i::JSSet> obj = Utils::OpenHandle(this); |
| return i::OrderedHashSet::cast(obj->table()).NumberOfElements(); |
| } |
| |
| void Set::Clear() { |
| auto self = Utils::OpenHandle(this); |
| i::Isolate* isolate = self->GetIsolate(); |
| LOG_API(isolate, Set, Clear); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::JSSet::Clear(isolate, self); |
| } |
| |
| MaybeLocal<Set> Set::Add(Local<Context> context, Local<Value> key) { |
| PREPARE_FOR_EXECUTION(context, Set, Add, Set); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> result; |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->set_add(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(Set); |
| RETURN_ESCAPED(Local<Set>::Cast(Utils::ToLocal(result))); |
| } |
| |
| Maybe<bool> Set::Has(Local<Context> context, Local<Value> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Set, Has, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> result; |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->set_has(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(result->IsTrue(isolate)); |
| } |
| |
| Maybe<bool> Set::Delete(Local<Context> context, Local<Value> key) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Set, Delete, Nothing<bool>(), i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> result; |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*key)}; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->set_delete(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(result->IsTrue(isolate)); |
| } |
| |
| namespace { |
| i::Handle<i::JSArray> SetAsArray(i::Isolate* isolate, i::Object table_obj, |
| int offset, SetAsArrayKind kind) { |
| i::Factory* factory = isolate->factory(); |
| i::Handle<i::OrderedHashSet> table(i::OrderedHashSet::cast(table_obj), |
| isolate); |
| // Elements skipped by |offset| may already be deleted. |
| int capacity = table->UsedCapacity(); |
| const bool collect_key_values = kind == SetAsArrayKind::kEntries; |
| int max_length = (capacity - offset) * (collect_key_values ? 2 : 1); |
| if (max_length == 0) return factory->NewJSArray(0); |
| i::Handle<i::FixedArray> result = factory->NewFixedArray(max_length); |
| int result_index = 0; |
| { |
| i::DisallowGarbageCollection no_gc; |
| i::Oddball the_hole = i::ReadOnlyRoots(isolate).the_hole_value(); |
| for (int i = offset; i < capacity; ++i) { |
| i::InternalIndex entry(i); |
| i::Object key = table->KeyAt(entry); |
| if (key == the_hole) continue; |
| result->set(result_index++, key); |
| if (collect_key_values) result->set(result_index++, key); |
| } |
| } |
| DCHECK_GE(max_length, result_index); |
| if (result_index == 0) return factory->NewJSArray(0); |
| result->Shrink(isolate, result_index); |
| return factory->NewJSArrayWithElements(result, i::PACKED_ELEMENTS, |
| result_index); |
| } |
| } // namespace |
| |
| Local<Array> Set::AsArray() const { |
| i::Handle<i::JSSet> obj = Utils::OpenHandle(this); |
| i::Isolate* isolate = obj->GetIsolate(); |
| LOG_API(isolate, Set, AsArray); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return Utils::ToLocal( |
| SetAsArray(isolate, obj->table(), 0, SetAsArrayKind::kValues)); |
| } |
| |
| MaybeLocal<Promise::Resolver> Promise::Resolver::New(Local<Context> context) { |
| PREPARE_FOR_EXECUTION(context, Promise_Resolver, New, Resolver); |
| Local<Promise::Resolver> result; |
| has_pending_exception = |
| !ToLocal<Promise::Resolver>(isolate->factory()->NewJSPromise(), &result); |
| RETURN_ON_FAILED_EXECUTION(Promise::Resolver); |
| RETURN_ESCAPED(result); |
| } |
| |
| Local<Promise> Promise::Resolver::GetPromise() { |
| i::Handle<i::JSReceiver> promise = Utils::OpenHandle(this); |
| return Local<Promise>::Cast(Utils::ToLocal(promise)); |
| } |
| |
| Maybe<bool> Promise::Resolver::Resolve(Local<Context> context, |
| Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Promise_Resolver, Resolve, Nothing<bool>(), |
| i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto promise = i::Handle<i::JSPromise>::cast(self); |
| |
| if (promise->status() != Promise::kPending) { |
| return Just(true); |
| } |
| |
| has_pending_exception = |
| i::JSPromise::Resolve(promise, Utils::OpenHandle(*value)).is_null(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| Maybe<bool> Promise::Resolver::Reject(Local<Context> context, |
| Local<Value> value) { |
| auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8(isolate, context, Promise_Resolver, Reject, Nothing<bool>(), |
| i::HandleScope); |
| auto self = Utils::OpenHandle(this); |
| auto promise = i::Handle<i::JSPromise>::cast(self); |
| |
| if (promise->status() != Promise::kPending) { |
| return Just(true); |
| } |
| |
| has_pending_exception = |
| i::JSPromise::Reject(promise, Utils::OpenHandle(*value)).is_null(); |
| RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool); |
| return Just(true); |
| } |
| |
| MaybeLocal<Promise> Promise::Catch(Local<Context> context, |
| Local<Function> handler) { |
| PREPARE_FOR_EXECUTION(context, Promise, Catch, Promise); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> argv[] = {isolate->factory()->undefined_value(), |
| Utils::OpenHandle(*handler)}; |
| i::Handle<i::Object> result; |
| // Do not call the built-in Promise.prototype.catch! |
| // v8::Promise should not call out to a monkeypatched Promise.prototype.then |
| // as the implementation of Promise.prototype.catch does. |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->promise_then(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(Promise); |
| RETURN_ESCAPED(Local<Promise>::Cast(Utils::ToLocal(result))); |
| } |
| |
| MaybeLocal<Promise> Promise::Then(Local<Context> context, |
| Local<Function> handler) { |
| PREPARE_FOR_EXECUTION(context, Promise, Then, Promise); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*handler)}; |
| i::Handle<i::Object> result; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->promise_then(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(Promise); |
| RETURN_ESCAPED(Local<Promise>::Cast(Utils::ToLocal(result))); |
| } |
| |
| MaybeLocal<Promise> Promise::Then(Local<Context> context, |
| Local<Function> on_fulfilled, |
| Local<Function> on_rejected) { |
| PREPARE_FOR_EXECUTION(context, Promise, Then, Promise); |
| auto self = Utils::OpenHandle(this); |
| i::Handle<i::Object> argv[] = {Utils::OpenHandle(*on_fulfilled), |
| Utils::OpenHandle(*on_rejected)}; |
| i::Handle<i::Object> result; |
| has_pending_exception = |
| !i::Execution::CallBuiltin(isolate, isolate->promise_then(), self, |
| arraysize(argv), argv) |
| .ToHandle(&result); |
| RETURN_ON_FAILED_EXECUTION(Promise); |
| RETURN_ESCAPED(Local<Promise>::Cast(Utils::ToLocal(result))); |
| } |
| |
| bool Promise::HasHandler() const { |
| i::JSReceiver promise = *Utils::OpenHandle(this); |
| i::Isolate* isolate = promise.GetIsolate(); |
| LOG_API(isolate, Promise, HasRejectHandler); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| if (!promise.IsJSPromise()) return false; |
| return i::JSPromise::cast(promise).has_handler(); |
| } |
| |
| Local<Value> Promise::Result() { |
| i::Handle<i::JSReceiver> promise = Utils::OpenHandle(this); |
| i::Isolate* isolate = promise->GetIsolate(); |
| LOG_API(isolate, Promise, Result); |
| i::Handle<i::JSPromise> js_promise = i::Handle<i::JSPromise>::cast(promise); |
| Utils::ApiCheck(js_promise->status() != kPending, "v8_Promise_Result", |
| "Promise is still pending"); |
| i::Handle<i::Object> result(js_promise->result(), isolate); |
| return Utils::ToLocal(result); |
| } |
| |
| Promise::PromiseState Promise::State() { |
| i::Handle<i::JSReceiver> promise = Utils::OpenHandle(this); |
| i::Isolate* isolate = promise->GetIsolate(); |
| LOG_API(isolate, Promise, Status); |
| i::Handle<i::JSPromise> js_promise = i::Handle<i::JSPromise>::cast(promise); |
| return static_cast<PromiseState>(js_promise->status()); |
| } |
| |
| void Promise::MarkAsHandled() { |
| i::Handle<i::JSPromise> js_promise = Utils::OpenHandle(this); |
| js_promise->set_has_handler(true); |
| } |
| |
| void Promise::MarkAsSilent() { |
| i::Handle<i::JSPromise> js_promise = Utils::OpenHandle(this); |
| js_promise->set_is_silent(true); |
| } |
| |
| Local<Value> Proxy::GetTarget() { |
| i::Handle<i::JSProxy> self = Utils::OpenHandle(this); |
| i::Handle<i::Object> target(self->target(), self->GetIsolate()); |
| return Utils::ToLocal(target); |
| } |
| |
| Local<Value> Proxy::GetHandler() { |
| i::Handle<i::JSProxy> self = Utils::OpenHandle(this); |
| i::Handle<i::Object> handler(self->handler(), self->GetIsolate()); |
| return Utils::ToLocal(handler); |
| } |
| |
| bool Proxy::IsRevoked() const { |
| i::Handle<i::JSProxy> self = Utils::OpenHandle(this); |
| return self->IsRevoked(); |
| } |
| |
| void Proxy::Revoke() { |
| i::Handle<i::JSProxy> self = Utils::OpenHandle(this); |
| i::JSProxy::Revoke(self); |
| } |
| |
| MaybeLocal<Proxy> Proxy::New(Local<Context> context, Local<Object> local_target, |
| Local<Object> local_handler) { |
| PREPARE_FOR_EXECUTION(context, Proxy, New, Proxy); |
| i::Handle<i::JSReceiver> target = Utils::OpenHandle(*local_target); |
| i::Handle<i::JSReceiver> handler = Utils::OpenHandle(*local_handler); |
| Local<Proxy> result; |
| has_pending_exception = |
| !ToLocal<Proxy>(i::JSProxy::New(isolate, target, handler), &result); |
| RETURN_ON_FAILED_EXECUTION(Proxy); |
| RETURN_ESCAPED(result); |
| } |
| |
| CompiledWasmModule::CompiledWasmModule( |
| std::shared_ptr<internal::wasm::NativeModule> native_module, |
| const char* source_url, size_t url_length) |
| : native_module_(std::move(native_module)), |
| source_url_(source_url, url_length) { |
| CHECK_NOT_NULL(native_module_); |
| } |
| |
| OwnedBuffer CompiledWasmModule::Serialize() { |
| #if V8_ENABLE_WEBASSEMBLY |
| TRACE_EVENT0("v8.wasm", "wasm.SerializeModule"); |
| i::wasm::WasmSerializer wasm_serializer(native_module_.get()); |
| size_t buffer_size = wasm_serializer.GetSerializedNativeModuleSize(); |
| std::unique_ptr<uint8_t[]> buffer(new uint8_t[buffer_size]); |
| if (!wasm_serializer.SerializeNativeModule({buffer.get(), buffer_size})) |
| return {}; |
| return {std::move(buffer), buffer_size}; |
| #else |
| UNREACHABLE(); |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| MemorySpan<const uint8_t> CompiledWasmModule::GetWireBytesRef() { |
| #if V8_ENABLE_WEBASSEMBLY |
| base::Vector<const uint8_t> bytes_vec = native_module_->wire_bytes(); |
| return {bytes_vec.begin(), bytes_vec.size()}; |
| #else |
| UNREACHABLE(); |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| Local<ArrayBuffer> v8::WasmMemoryObject::Buffer() { |
| #if V8_ENABLE_WEBASSEMBLY |
| i::Handle<i::WasmMemoryObject> obj = Utils::OpenHandle(this); |
| i::Handle<i::JSArrayBuffer> buffer(obj->array_buffer(), obj->GetIsolate()); |
| return Utils::ToLocal(buffer); |
| #else |
| UNREACHABLE(); |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| CompiledWasmModule WasmModuleObject::GetCompiledModule() { |
| #if V8_ENABLE_WEBASSEMBLY |
| auto obj = i::Handle<i::WasmModuleObject>::cast(Utils::OpenHandle(this)); |
| auto url = |
| i::handle(i::String::cast(obj->script().name()), obj->GetIsolate()); |
| int length; |
| std::unique_ptr<char[]> cstring = |
| url->ToCString(i::DISALLOW_NULLS, i::FAST_STRING_TRAVERSAL, &length); |
| return CompiledWasmModule(std::move(obj->shared_native_module()), |
| cstring.get(), length); |
| #else |
| UNREACHABLE(); |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| MaybeLocal<WasmModuleObject> WasmModuleObject::FromCompiledModule( |
| Isolate* isolate, const CompiledWasmModule& compiled_module) { |
| #if V8_ENABLE_WEBASSEMBLY |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Handle<i::WasmModuleObject> module_object = |
| i::wasm::GetWasmEngine()->ImportNativeModule( |
| i_isolate, compiled_module.native_module_, |
| base::VectorOf(compiled_module.source_url())); |
| return Local<WasmModuleObject>::Cast( |
| Utils::ToLocal(i::Handle<i::JSObject>::cast(module_object))); |
| #else |
| UNREACHABLE(); |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| WasmModuleObjectBuilderStreaming::WasmModuleObjectBuilderStreaming( |
| Isolate* isolate) { |
| USE(isolate_); |
| } |
| |
| Local<Promise> WasmModuleObjectBuilderStreaming::GetPromise() { return {}; } |
| |
| void WasmModuleObjectBuilderStreaming::OnBytesReceived(const uint8_t* bytes, |
| size_t size) {} |
| |
| void WasmModuleObjectBuilderStreaming::Finish() {} |
| |
| void WasmModuleObjectBuilderStreaming::Abort(MaybeLocal<Value> exception) {} |
| |
| void* v8::ArrayBuffer::Allocator::Reallocate(void* data, size_t old_length, |
| size_t new_length) { |
| if (old_length == new_length) return data; |
| uint8_t* new_data = |
| reinterpret_cast<uint8_t*>(AllocateUninitialized(new_length)); |
| if (new_data == nullptr) return nullptr; |
| size_t bytes_to_copy = std::min(old_length, new_length); |
| memcpy(new_data, data, bytes_to_copy); |
| if (new_length > bytes_to_copy) { |
| memset(new_data + bytes_to_copy, 0, new_length - bytes_to_copy); |
| } |
| Free(data, old_length); |
| return new_data; |
| } |
| |
| // static |
| v8::ArrayBuffer::Allocator* v8::ArrayBuffer::Allocator::NewDefaultAllocator() { |
| return new ArrayBufferAllocator(); |
| } |
| |
| bool v8::ArrayBuffer::IsDetachable() const { |
| return Utils::OpenHandle(this)->is_detachable(); |
| } |
| |
| namespace { |
| std::shared_ptr<i::BackingStore> ToInternal( |
| std::shared_ptr<i::BackingStoreBase> backing_store) { |
| return std::static_pointer_cast<i::BackingStore>(backing_store); |
| } |
| } // namespace |
| |
| void v8::ArrayBuffer::Detach() { |
| i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this); |
| i::Isolate* isolate = obj->GetIsolate(); |
| Utils::ApiCheck(obj->is_detachable(), "v8::ArrayBuffer::Detach", |
| "Only detachable ArrayBuffers can be detached"); |
| LOG_API(isolate, ArrayBuffer, Detach); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| obj->Detach(); |
| } |
| |
| size_t v8::ArrayBuffer::ByteLength() const { |
| i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this); |
| return obj->byte_length(); |
| } |
| |
| Local<ArrayBuffer> v8::ArrayBuffer::New(Isolate* isolate, size_t byte_length) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, ArrayBuffer, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::MaybeHandle<i::JSArrayBuffer> result = |
| i_isolate->factory()->NewJSArrayBufferAndBackingStore( |
| byte_length, i::InitializedFlag::kZeroInitialized); |
| |
| i::Handle<i::JSArrayBuffer> array_buffer; |
| if (!result.ToHandle(&array_buffer)) { |
| // TODO(jbroman): It may be useful in the future to provide a MaybeLocal |
| // version that throws an exception or otherwise does not crash. |
| i::FatalProcessOutOfMemory(i_isolate, "v8::ArrayBuffer::New"); |
| } |
| |
| return Utils::ToLocal(array_buffer); |
| } |
| |
| Local<ArrayBuffer> v8::ArrayBuffer::New( |
| Isolate* isolate, std::shared_ptr<BackingStore> backing_store) { |
| CHECK_IMPLIES(backing_store->ByteLength() != 0, |
| backing_store->Data() != nullptr); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, ArrayBuffer, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| std::shared_ptr<i::BackingStore> i_backing_store( |
| ToInternal(std::move(backing_store))); |
| Utils::ApiCheck( |
| !i_backing_store->is_shared(), "v8_ArrayBuffer_New", |
| "Cannot construct ArrayBuffer with a BackingStore of SharedArrayBuffer"); |
| i::Handle<i::JSArrayBuffer> obj = |
| i_isolate->factory()->NewJSArrayBuffer(std::move(i_backing_store)); |
| return Utils::ToLocal(obj); |
| } |
| |
| std::unique_ptr<v8::BackingStore> v8::ArrayBuffer::NewBackingStore( |
| Isolate* isolate, size_t byte_length) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, ArrayBuffer, NewBackingStore); |
| CHECK_LE(byte_length, i::JSArrayBuffer::kMaxByteLength); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| std::unique_ptr<i::BackingStoreBase> backing_store = |
| i::BackingStore::Allocate(i_isolate, byte_length, |
| i::SharedFlag::kNotShared, |
| i::InitializedFlag::kZeroInitialized); |
| if (!backing_store) { |
| i::FatalProcessOutOfMemory(i_isolate, "v8::ArrayBuffer::NewBackingStore"); |
| } |
| return std::unique_ptr<v8::BackingStore>( |
| static_cast<v8::BackingStore*>(backing_store.release())); |
| } |
| |
| std::unique_ptr<v8::BackingStore> v8::ArrayBuffer::NewBackingStore( |
| void* data, size_t byte_length, v8::BackingStore::DeleterCallback deleter, |
| void* deleter_data) { |
| CHECK_LE(byte_length, i::JSArrayBuffer::kMaxByteLength); |
| std::unique_ptr<i::BackingStoreBase> backing_store = |
| i::BackingStore::WrapAllocation(data, byte_length, deleter, deleter_data, |
| i::SharedFlag::kNotShared); |
| return std::unique_ptr<v8::BackingStore>( |
| static_cast<v8::BackingStore*>(backing_store.release())); |
| } |
| |
| Local<ArrayBuffer> v8::ArrayBufferView::Buffer() { |
| i::Handle<i::JSArrayBufferView> obj = Utils::OpenHandle(this); |
| i::Handle<i::JSArrayBuffer> buffer; |
| if (obj->IsJSDataView()) { |
| i::Handle<i::JSDataView> data_view(i::JSDataView::cast(*obj), |
| obj->GetIsolate()); |
| DCHECK(data_view->buffer().IsJSArrayBuffer()); |
| buffer = i::handle(i::JSArrayBuffer::cast(data_view->buffer()), |
| data_view->GetIsolate()); |
| } else { |
| DCHECK(obj->IsJSTypedArray()); |
| buffer = i::JSTypedArray::cast(*obj).GetBuffer(); |
| } |
| return Utils::ToLocal(buffer); |
| } |
| |
| size_t v8::ArrayBufferView::CopyContents(void* dest, size_t byte_length) { |
| i::Handle<i::JSArrayBufferView> self = Utils::OpenHandle(this); |
| size_t byte_offset = self->byte_offset(); |
| size_t bytes_to_copy = std::min(byte_length, self->byte_length()); |
| if (bytes_to_copy) { |
| i::DisallowGarbageCollection no_gc; |
| i::Isolate* isolate = self->GetIsolate(); |
| i::Handle<i::JSArrayBuffer> buffer(i::JSArrayBuffer::cast(self->buffer()), |
| isolate); |
| const char* source = reinterpret_cast<char*>(buffer->backing_store()); |
| if (source == nullptr) { |
| DCHECK(self->IsJSTypedArray()); |
| i::Handle<i::JSTypedArray> typed_array(i::JSTypedArray::cast(*self), |
| isolate); |
| source = reinterpret_cast<char*>(typed_array->DataPtr()); |
| } |
| memcpy(dest, source + byte_offset, bytes_to_copy); |
| } |
| return bytes_to_copy; |
| } |
| |
| bool v8::ArrayBufferView::HasBuffer() const { |
| i::Handle<i::JSArrayBufferView> self = Utils::OpenHandle(this); |
| if (!self->IsJSTypedArray()) return true; |
| auto typed_array = i::Handle<i::JSTypedArray>::cast(self); |
| return !typed_array->is_on_heap(); |
| } |
| |
| size_t v8::ArrayBufferView::ByteOffset() { |
| i::Handle<i::JSArrayBufferView> obj = Utils::OpenHandle(this); |
| return obj->WasDetached() ? 0 : obj->byte_offset(); |
| } |
| |
| size_t v8::ArrayBufferView::ByteLength() { |
| i::Handle<i::JSArrayBufferView> obj = Utils::OpenHandle(this); |
| return obj->WasDetached() ? 0 : obj->byte_length(); |
| } |
| |
| size_t v8::TypedArray::Length() { |
| i::Handle<i::JSTypedArray> obj = Utils::OpenHandle(this); |
| return obj->WasDetached() ? 0 : obj->length(); |
| } |
| |
| static_assert( |
| v8::TypedArray::kMaxLength == i::JSTypedArray::kMaxLength, |
| "v8::TypedArray::kMaxLength must match i::JSTypedArray::kMaxLength"); |
| |
| #define TYPED_ARRAY_NEW(Type, type, TYPE, ctype) \ |
| Local<Type##Array> Type##Array::New(Local<ArrayBuffer> array_buffer, \ |
| size_t byte_offset, size_t length) { \ |
| i::Isolate* isolate = Utils::OpenHandle(*array_buffer)->GetIsolate(); \ |
| LOG_API(isolate, Type##Array, New); \ |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); \ |
| if (!Utils::ApiCheck(length <= kMaxLength, \ |
| "v8::" #Type \ |
| "Array::New(Local<ArrayBuffer>, size_t, size_t)", \ |
| "length exceeds max allowed value")) { \ |
| return Local<Type##Array>(); \ |
| } \ |
| i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*array_buffer); \ |
| i::Handle<i::JSTypedArray> obj = isolate->factory()->NewJSTypedArray( \ |
| i::kExternal##Type##Array, buffer, byte_offset, length); \ |
| return Utils::ToLocal##Type##Array(obj); \ |
| } \ |
| Local<Type##Array> Type##Array::New( \ |
| Local<SharedArrayBuffer> shared_array_buffer, size_t byte_offset, \ |
| size_t length) { \ |
| CHECK(i::FLAG_harmony_sharedarraybuffer); \ |
| i::Isolate* isolate = \ |
| Utils::OpenHandle(*shared_array_buffer)->GetIsolate(); \ |
| LOG_API(isolate, Type##Array, New); \ |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); \ |
| if (!Utils::ApiCheck( \ |
| length <= kMaxLength, \ |
| "v8::" #Type \ |
| "Array::New(Local<SharedArrayBuffer>, size_t, size_t)", \ |
| "length exceeds max allowed value")) { \ |
| return Local<Type##Array>(); \ |
| } \ |
| i::Handle<i::JSArrayBuffer> buffer = \ |
| Utils::OpenHandle(*shared_array_buffer); \ |
| i::Handle<i::JSTypedArray> obj = isolate->factory()->NewJSTypedArray( \ |
| i::kExternal##Type##Array, buffer, byte_offset, length); \ |
| return Utils::ToLocal##Type##Array(obj); \ |
| } |
| |
| TYPED_ARRAYS(TYPED_ARRAY_NEW) |
| #undef TYPED_ARRAY_NEW |
| |
| Local<DataView> DataView::New(Local<ArrayBuffer> array_buffer, |
| size_t byte_offset, size_t byte_length) { |
| i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*array_buffer); |
| i::Isolate* isolate = buffer->GetIsolate(); |
| LOG_API(isolate, DataView, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::JSDataView> obj = |
| isolate->factory()->NewJSDataView(buffer, byte_offset, byte_length); |
| return Utils::ToLocal(obj); |
| } |
| |
| Local<DataView> DataView::New(Local<SharedArrayBuffer> shared_array_buffer, |
| size_t byte_offset, size_t byte_length) { |
| CHECK(i::FLAG_harmony_sharedarraybuffer); |
| i::Handle<i::JSArrayBuffer> buffer = Utils::OpenHandle(*shared_array_buffer); |
| i::Isolate* isolate = buffer->GetIsolate(); |
| LOG_API(isolate, DataView, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::Handle<i::JSDataView> obj = |
| isolate->factory()->NewJSDataView(buffer, byte_offset, byte_length); |
| return Utils::ToLocal(obj); |
| } |
| |
| size_t v8::SharedArrayBuffer::ByteLength() const { |
| i::Handle<i::JSArrayBuffer> obj = Utils::OpenHandle(this); |
| return obj->byte_length(); |
| } |
| |
| Local<SharedArrayBuffer> v8::SharedArrayBuffer::New(Isolate* isolate, |
| size_t byte_length) { |
| CHECK(i::FLAG_harmony_sharedarraybuffer); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, SharedArrayBuffer, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| |
| std::unique_ptr<i::BackingStore> backing_store = |
| i::BackingStore::Allocate(i_isolate, byte_length, i::SharedFlag::kShared, |
| i::InitializedFlag::kZeroInitialized); |
| |
| if (!backing_store) { |
| // TODO(jbroman): It may be useful in the future to provide a MaybeLocal |
| // version that throws an exception or otherwise does not crash. |
| i::FatalProcessOutOfMemory(i_isolate, "v8::SharedArrayBuffer::New"); |
| } |
| |
| i::Handle<i::JSArrayBuffer> obj = |
| i_isolate->factory()->NewJSSharedArrayBuffer(std::move(backing_store)); |
| return Utils::ToLocalShared(obj); |
| } |
| |
| Local<SharedArrayBuffer> v8::SharedArrayBuffer::New( |
| Isolate* isolate, std::shared_ptr<BackingStore> backing_store) { |
| CHECK(i::FLAG_harmony_sharedarraybuffer); |
| CHECK_IMPLIES(backing_store->ByteLength() != 0, |
| backing_store->Data() != nullptr); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, SharedArrayBuffer, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| std::shared_ptr<i::BackingStore> i_backing_store(ToInternal(backing_store)); |
| Utils::ApiCheck( |
| i_backing_store->is_shared(), "v8_SharedArrayBuffer_New", |
| "Cannot construct SharedArrayBuffer with BackingStore of ArrayBuffer"); |
| i::Handle<i::JSArrayBuffer> obj = |
| i_isolate->factory()->NewJSSharedArrayBuffer(std::move(i_backing_store)); |
| return Utils::ToLocalShared(obj); |
| } |
| |
| std::unique_ptr<v8::BackingStore> v8::SharedArrayBuffer::NewBackingStore( |
| Isolate* isolate, size_t byte_length) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, SharedArrayBuffer, NewBackingStore); |
| CHECK_LE(byte_length, i::JSArrayBuffer::kMaxByteLength); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| std::unique_ptr<i::BackingStoreBase> backing_store = |
| i::BackingStore::Allocate(i_isolate, byte_length, i::SharedFlag::kShared, |
| i::InitializedFlag::kZeroInitialized); |
| if (!backing_store) { |
| i::FatalProcessOutOfMemory(i_isolate, |
| "v8::SharedArrayBuffer::NewBackingStore"); |
| } |
| return std::unique_ptr<v8::BackingStore>( |
| static_cast<v8::BackingStore*>(backing_store.release())); |
| } |
| |
| std::unique_ptr<v8::BackingStore> v8::SharedArrayBuffer::NewBackingStore( |
| void* data, size_t byte_length, v8::BackingStore::DeleterCallback deleter, |
| void* deleter_data) { |
| CHECK_LE(byte_length, i::JSArrayBuffer::kMaxByteLength); |
| std::unique_ptr<i::BackingStoreBase> backing_store = |
| i::BackingStore::WrapAllocation(data, byte_length, deleter, deleter_data, |
| i::SharedFlag::kShared); |
| return std::unique_ptr<v8::BackingStore>( |
| static_cast<v8::BackingStore*>(backing_store.release())); |
| } |
| |
| Local<Symbol> v8::Symbol::New(Isolate* isolate, Local<String> name) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, Symbol, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::Symbol> result = i_isolate->factory()->NewSymbol(); |
| if (!name.IsEmpty()) result->set_description(*Utils::OpenHandle(*name)); |
| return Utils::ToLocal(result); |
| } |
| |
| Local<Symbol> v8::Symbol::For(Isolate* isolate, Local<String> name) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Handle<i::String> i_name = Utils::OpenHandle(*name); |
| return Utils::ToLocal( |
| i_isolate->SymbolFor(i::RootIndex::kPublicSymbolTable, i_name, false)); |
| } |
| |
| Local<Symbol> v8::Symbol::ForApi(Isolate* isolate, Local<String> name) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Handle<i::String> i_name = Utils::OpenHandle(*name); |
| return Utils::ToLocal( |
| i_isolate->SymbolFor(i::RootIndex::kApiSymbolTable, i_name, false)); |
| } |
| |
| #define WELL_KNOWN_SYMBOLS(V) \ |
| V(AsyncIterator, async_iterator) \ |
| V(HasInstance, has_instance) \ |
| V(IsConcatSpreadable, is_concat_spreadable) \ |
| V(Iterator, iterator) \ |
| V(Match, match) \ |
| V(Replace, replace) \ |
| V(Search, search) \ |
| V(Split, split) \ |
| V(ToPrimitive, to_primitive) \ |
| V(ToStringTag, to_string_tag) \ |
| V(Unscopables, unscopables) |
| |
| #define SYMBOL_GETTER(Name, name) \ |
| Local<Symbol> v8::Symbol::Get##Name(Isolate* isolate) { \ |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); \ |
| return Utils::ToLocal(i_isolate->factory()->name##_symbol()); \ |
| } |
| |
| WELL_KNOWN_SYMBOLS(SYMBOL_GETTER) |
| |
| #undef SYMBOL_GETTER |
| #undef WELL_KNOWN_SYMBOLS |
| |
| Local<Private> v8::Private::New(Isolate* isolate, Local<String> name) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, Private, New); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::Handle<i::Symbol> symbol = i_isolate->factory()->NewPrivateSymbol(); |
| if (!name.IsEmpty()) symbol->set_description(*Utils::OpenHandle(*name)); |
| Local<Symbol> result = Utils::ToLocal(symbol); |
| return v8::Local<Private>(reinterpret_cast<Private*>(*result)); |
| } |
| |
| Local<Private> v8::Private::ForApi(Isolate* isolate, Local<String> name) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Handle<i::String> i_name = Utils::OpenHandle(*name); |
| Local<Symbol> result = Utils::ToLocal( |
| i_isolate->SymbolFor(i::RootIndex::kApiPrivateSymbolTable, i_name, true)); |
| return v8::Local<Private>(reinterpret_cast<Private*>(*result)); |
| } |
| |
| Local<Number> v8::Number::New(Isolate* isolate, double value) { |
| i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| if (std::isnan(value)) { |
| // Introduce only canonical NaN value into the VM, to avoid signaling NaNs. |
| value = std::numeric_limits<double>::quiet_NaN(); |
| } |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); |
| i::Handle<i::Object> result = internal_isolate->factory()->NewNumber(value); |
| return Utils::NumberToLocal(result); |
| } |
| |
| Local<Integer> v8::Integer::New(Isolate* isolate, int32_t value) { |
| i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| if (i::Smi::IsValid(value)) { |
| return Utils::IntegerToLocal( |
| i::Handle<i::Object>(i::Smi::FromInt(value), internal_isolate)); |
| } |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); |
| i::Handle<i::Object> result = internal_isolate->factory()->NewNumber(value); |
| return Utils::IntegerToLocal(result); |
| } |
| |
| Local<Integer> v8::Integer::NewFromUnsigned(Isolate* isolate, uint32_t value) { |
| i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| bool fits_into_int32_t = (value & (1 << 31)) == 0; |
| if (fits_into_int32_t) { |
| return Integer::New(isolate, static_cast<int32_t>(value)); |
| } |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); |
| i::Handle<i::Object> result = internal_isolate->factory()->NewNumber(value); |
| return Utils::IntegerToLocal(result); |
| } |
| |
| Local<BigInt> v8::BigInt::New(Isolate* isolate, int64_t value) { |
| i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); |
| i::Handle<i::BigInt> result = i::BigInt::FromInt64(internal_isolate, value); |
| return Utils::ToLocal(result); |
| } |
| |
| Local<BigInt> v8::BigInt::NewFromUnsigned(Isolate* isolate, uint64_t value) { |
| i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(internal_isolate); |
| i::Handle<i::BigInt> result = i::BigInt::FromUint64(internal_isolate, value); |
| return Utils::ToLocal(result); |
| } |
| |
| MaybeLocal<BigInt> v8::BigInt::NewFromWords(Local<Context> context, |
| int sign_bit, int word_count, |
| const uint64_t* words) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate()); |
| ENTER_V8_NO_SCRIPT(isolate, context, BigInt, NewFromWords, |
| MaybeLocal<BigInt>(), InternalEscapableScope); |
| i::MaybeHandle<i::BigInt> result = |
| i::BigInt::FromWords64(isolate, sign_bit, word_count, words); |
| has_pending_exception = result.is_null(); |
| RETURN_ON_FAILED_EXECUTION(BigInt); |
| RETURN_ESCAPED(Utils::ToLocal(result.ToHandleChecked())); |
| } |
| |
| uint64_t v8::BigInt::Uint64Value(bool* lossless) const { |
| i::Handle<i::BigInt> handle = Utils::OpenHandle(this); |
| return handle->AsUint64(lossless); |
| } |
| |
| int64_t v8::BigInt::Int64Value(bool* lossless) const { |
| i::Handle<i::BigInt> handle = Utils::OpenHandle(this); |
| return handle->AsInt64(lossless); |
| } |
| |
| int BigInt::WordCount() const { |
| i::Handle<i::BigInt> handle = Utils::OpenHandle(this); |
| return handle->Words64Count(); |
| } |
| |
| void BigInt::ToWordsArray(int* sign_bit, int* word_count, |
| uint64_t* words) const { |
| i::Handle<i::BigInt> handle = Utils::OpenHandle(this); |
| return handle->ToWordsArray64(sign_bit, word_count, words); |
| } |
| |
| void Isolate::ReportExternalAllocationLimitReached() { |
| i::Heap* heap = reinterpret_cast<i::Isolate*>(this)->heap(); |
| if (heap->gc_state() != i::Heap::NOT_IN_GC) return; |
| heap->ReportExternalMemoryPressure(); |
| } |
| |
| HeapProfiler* Isolate::GetHeapProfiler() { |
| i::HeapProfiler* heap_profiler = |
| reinterpret_cast<i::Isolate*>(this)->heap_profiler(); |
| return reinterpret_cast<HeapProfiler*>(heap_profiler); |
| } |
| |
| void Isolate::SetIdle(bool is_idle) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetIdle(is_idle); |
| } |
| |
| ArrayBuffer::Allocator* Isolate::GetArrayBufferAllocator() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->array_buffer_allocator(); |
| } |
| |
| bool Isolate::InContext() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return !isolate->context().is_null(); |
| } |
| |
| void Isolate::ClearKeptObjects() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->ClearKeptObjects(); |
| } |
| |
| v8::Local<v8::Context> Isolate::GetCurrentContext() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Context context = isolate->context(); |
| if (context.is_null()) return Local<Context>(); |
| i::Context native_context = context.native_context(); |
| if (native_context.is_null()) return Local<Context>(); |
| return Utils::ToLocal(i::Handle<i::Context>(native_context, isolate)); |
| } |
| |
| v8::Local<v8::Context> Isolate::GetEnteredOrMicrotaskContext() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Handle<i::Object> last = |
| isolate->handle_scope_implementer()->LastEnteredOrMicrotaskContext(); |
| if (last.is_null()) return Local<Context>(); |
| DCHECK(last->IsNativeContext()); |
| return Utils::ToLocal(i::Handle<i::Context>::cast(last)); |
| } |
| |
| v8::Local<v8::Context> Isolate::GetIncumbentContext() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Handle<i::Context> context = isolate->GetIncumbentContext(); |
| return Utils::ToLocal(context); |
| } |
| |
| v8::Local<Value> Isolate::ThrowError(v8::Local<v8::String> message) { |
| return ThrowException(v8::Exception::Error(message)); |
| } |
| |
| v8::Local<Value> Isolate::ThrowException(v8::Local<v8::Value> value) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| ENTER_V8_DO_NOT_USE(isolate); |
| // If we're passed an empty handle, we throw an undefined exception |
| // to deal more gracefully with out of memory situations. |
| if (value.IsEmpty()) { |
| isolate->ScheduleThrow(i::ReadOnlyRoots(isolate).undefined_value()); |
| } else { |
| isolate->ScheduleThrow(*Utils::OpenHandle(*value)); |
| } |
| return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate)); |
| } |
| |
| void Isolate::AddGCPrologueCallback(GCCallbackWithData callback, void* data, |
| GCType gc_type) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->AddGCPrologueCallback(callback, gc_type, data); |
| } |
| |
| void Isolate::RemoveGCPrologueCallback(GCCallbackWithData callback, |
| void* data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->RemoveGCPrologueCallback(callback, data); |
| } |
| |
| void Isolate::AddGCEpilogueCallback(GCCallbackWithData callback, void* data, |
| GCType gc_type) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->AddGCEpilogueCallback(callback, gc_type, data); |
| } |
| |
| void Isolate::RemoveGCEpilogueCallback(GCCallbackWithData callback, |
| void* data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->RemoveGCEpilogueCallback(callback, data); |
| } |
| |
| static void CallGCCallbackWithoutData(Isolate* isolate, GCType type, |
| GCCallbackFlags flags, void* data) { |
| reinterpret_cast<Isolate::GCCallback>(data)(isolate, type, flags); |
| } |
| |
| void Isolate::AddGCPrologueCallback(GCCallback callback, GCType gc_type) { |
| void* data = reinterpret_cast<void*>(callback); |
| AddGCPrologueCallback(CallGCCallbackWithoutData, data, gc_type); |
| } |
| |
| void Isolate::RemoveGCPrologueCallback(GCCallback callback) { |
| void* data = reinterpret_cast<void*>(callback); |
| RemoveGCPrologueCallback(CallGCCallbackWithoutData, data); |
| } |
| |
| void Isolate::AddGCEpilogueCallback(GCCallback callback, GCType gc_type) { |
| void* data = reinterpret_cast<void*>(callback); |
| AddGCEpilogueCallback(CallGCCallbackWithoutData, data, gc_type); |
| } |
| |
| void Isolate::RemoveGCEpilogueCallback(GCCallback callback) { |
| void* data = reinterpret_cast<void*>(callback); |
| RemoveGCEpilogueCallback(CallGCCallbackWithoutData, data); |
| } |
| |
| void Isolate::SetEmbedderHeapTracer(EmbedderHeapTracer* tracer) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->SetEmbedderHeapTracer(tracer); |
| } |
| |
| EmbedderHeapTracer* Isolate::GetEmbedderHeapTracer() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->heap()->GetEmbedderHeapTracer(); |
| } |
| |
| void Isolate::SetEmbedderRootsHandler(EmbedderRootsHandler* handler) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->SetEmbedderRootsHandler(handler); |
| } |
| |
| void Isolate::AttachCppHeap(CppHeap* cpp_heap) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->AttachCppHeap(cpp_heap); |
| } |
| |
| void Isolate::DetachCppHeap() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->DetachCppHeap(); |
| } |
| |
| CppHeap* Isolate::GetCppHeap() const { |
| const i::Isolate* isolate = reinterpret_cast<const i::Isolate*>(this); |
| return isolate->heap()->cpp_heap(); |
| } |
| |
| void Isolate::SetGetExternallyAllocatedMemoryInBytesCallback( |
| GetExternallyAllocatedMemoryInBytesCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->SetGetExternallyAllocatedMemoryInBytesCallback(callback); |
| } |
| |
| void Isolate::TerminateExecution() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->stack_guard()->RequestTerminateExecution(); |
| } |
| |
| bool Isolate::IsExecutionTerminating() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return IsExecutionTerminatingCheck(isolate); |
| } |
| |
| void Isolate::CancelTerminateExecution() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->stack_guard()->ClearTerminateExecution(); |
| isolate->CancelTerminateExecution(); |
| } |
| |
| void Isolate::RequestInterrupt(InterruptCallback callback, void* data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->RequestInterrupt(callback, data); |
| } |
| |
| bool Isolate::HasPendingBackgroundTasks() { |
| #if V8_ENABLE_WEBASSEMBLY |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return i::wasm::GetWasmEngine()->HasRunningCompileJob(isolate); |
| #else |
| return false; |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| void Isolate::RequestGarbageCollectionForTesting(GarbageCollectionType type) { |
| Utils::ApiCheck(i::FLAG_expose_gc, |
| "v8::Isolate::RequestGarbageCollectionForTesting", |
| "Must use --expose-gc"); |
| if (type == kMinorGarbageCollection) { |
| reinterpret_cast<i::Isolate*>(this)->heap()->CollectGarbage( |
| i::NEW_SPACE, i::GarbageCollectionReason::kTesting, |
| kGCCallbackFlagForced); |
| } else { |
| DCHECK_EQ(kFullGarbageCollection, type); |
| reinterpret_cast<i::Isolate*>(this)->heap()->PreciseCollectAllGarbage( |
| i::Heap::kNoGCFlags, i::GarbageCollectionReason::kTesting, |
| kGCCallbackFlagForced); |
| } |
| } |
| |
| Isolate* Isolate::GetCurrent() { |
| i::Isolate* isolate = i::Isolate::Current(); |
| return reinterpret_cast<Isolate*>(isolate); |
| } |
| |
| Isolate* Isolate::TryGetCurrent() { |
| i::Isolate* isolate = i::Isolate::TryGetCurrent(); |
| return reinterpret_cast<Isolate*>(isolate); |
| } |
| |
| // static |
| Isolate* Isolate::Allocate() { |
| return reinterpret_cast<Isolate*>(i::Isolate::New()); |
| } |
| |
| Isolate::CreateParams::CreateParams() = default; |
| |
| Isolate::CreateParams::~CreateParams() = default; |
| |
| // static |
| // This is separate so that tests can provide a different |isolate|. |
| void Isolate::Initialize(Isolate* isolate, |
| const v8::Isolate::CreateParams& params) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| if (auto allocator = params.array_buffer_allocator_shared) { |
| CHECK(params.array_buffer_allocator == nullptr || |
| params.array_buffer_allocator == allocator.get()); |
| i_isolate->set_array_buffer_allocator(allocator.get()); |
| i_isolate->set_array_buffer_allocator_shared(std::move(allocator)); |
| } else { |
| CHECK_NOT_NULL(params.array_buffer_allocator); |
| i_isolate->set_array_buffer_allocator(params.array_buffer_allocator); |
| } |
| if (params.snapshot_blob != nullptr) { |
| i_isolate->set_snapshot_blob(params.snapshot_blob); |
| } else { |
| i_isolate->set_snapshot_blob(i::Snapshot::DefaultSnapshotBlob()); |
| } |
| if (params.counter_lookup_callback) { |
| isolate->SetCounterFunction(params.counter_lookup_callback); |
| } |
| |
| if (params.create_histogram_callback) { |
| isolate->SetCreateHistogramFunction(params.create_histogram_callback); |
| } |
| |
| if (params.add_histogram_sample_callback) { |
| isolate->SetAddHistogramSampleFunction( |
| params.add_histogram_sample_callback); |
| } |
| |
| i_isolate->set_api_external_references(params.external_references); |
| i_isolate->set_allow_atomics_wait(params.allow_atomics_wait); |
| |
| i_isolate->heap()->ConfigureHeap(params.constraints); |
| if (params.constraints.stack_limit() != nullptr) { |
| uintptr_t limit = |
| reinterpret_cast<uintptr_t>(params.constraints.stack_limit()); |
| i_isolate->stack_guard()->SetStackLimit(limit); |
| } |
| // TODO(jochen): Once we got rid of Isolate::Current(), we can remove this. |
| Isolate::Scope isolate_scope(isolate); |
| if (i_isolate->snapshot_blob() == nullptr) { |
| FATAL( |
| "V8 snapshot blob was not set during initialization. This can mean " |
| "that the snapshot blob file is corrupted or missing."); |
| } |
| if (!i::Snapshot::Initialize(i_isolate)) { |
| // If snapshot data was provided and we failed to deserialize it must |
| // have been corrupted. |
| FATAL( |
| "Failed to deserialize the V8 snapshot blob. This can mean that the " |
| "snapshot blob file is corrupted or missing."); |
| } |
| |
| { |
| // Set up code event handlers. Needs to be after i::Snapshot::Initialize |
| // because that is where we add the isolate to WasmEngine. |
| auto code_event_handler = params.code_event_handler; |
| #ifdef ENABLE_GDB_JIT_INTERFACE |
| if (code_event_handler == nullptr && i::FLAG_gdbjit) { |
| code_event_handler = i::GDBJITInterface::EventHandler; |
| } |
| #endif // ENABLE_GDB_JIT_INTERFACE |
| #if defined(V8_OS_WIN) && defined(V8_ENABLE_SYSTEM_INSTRUMENTATION) |
| if (code_event_handler == nullptr && |
| i::FLAG_enable_system_instrumentation) { |
| code_event_handler = i::ETWJITInterface::EventHandler; |
| } |
| #endif // defined(V8_OS_WIN) |
| |
| if (code_event_handler) { |
| isolate->SetJitCodeEventHandler(kJitCodeEventDefault, code_event_handler); |
| } |
| } |
| |
| i_isolate->set_only_terminate_in_safe_scope( |
| params.only_terminate_in_safe_scope); |
| i_isolate->set_embedder_wrapper_type_index( |
| params.embedder_wrapper_type_index); |
| i_isolate->set_embedder_wrapper_object_index( |
| params.embedder_wrapper_object_index); |
| |
| if (!i::V8::GetCurrentPlatform() |
| ->GetForegroundTaskRunner(isolate) |
| ->NonNestableTasksEnabled()) { |
| FATAL( |
| "The current platform's foreground task runner does not have " |
| "non-nestable tasks enabled. The embedder must provide one."); |
| } |
| } |
| |
| Isolate* Isolate::New(const Isolate::CreateParams& params) { |
| Isolate* isolate = Allocate(); |
| Initialize(isolate, params); |
| return isolate; |
| } |
| |
| void Isolate::Dispose() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| if (!Utils::ApiCheck(!isolate->IsInUse(), "v8::Isolate::Dispose()", |
| "Disposing the isolate that is entered by a thread.")) { |
| return; |
| } |
| i::Isolate::Delete(isolate); |
| } |
| |
| void Isolate::DumpAndResetStats() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->DumpAndResetStats(); |
| } |
| |
| void Isolate::DiscardThreadSpecificMetadata() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->DiscardPerThreadDataForThisThread(); |
| } |
| |
| void Isolate::Enter() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->Enter(); |
| } |
| |
| void Isolate::Exit() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->Exit(); |
| } |
| |
| void Isolate::SetAbortOnUncaughtExceptionCallback( |
| AbortOnUncaughtExceptionCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetAbortOnUncaughtExceptionCallback(callback); |
| } |
| |
| void Isolate::SetHostImportModuleDynamicallyCallback( |
| HostImportModuleDynamicallyWithImportAssertionsCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetHostImportModuleDynamicallyCallback(callback); |
| } |
| |
| void Isolate::SetHostInitializeImportMetaObjectCallback( |
| HostInitializeImportMetaObjectCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetHostInitializeImportMetaObjectCallback(callback); |
| } |
| |
| void Isolate::SetPrepareStackTraceCallback(PrepareStackTraceCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetPrepareStackTraceCallback(callback); |
| } |
| |
| Isolate::DisallowJavascriptExecutionScope::DisallowJavascriptExecutionScope( |
| Isolate* isolate, |
| Isolate::DisallowJavascriptExecutionScope::OnFailure on_failure) |
| : on_failure_(on_failure), isolate_(isolate) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| switch (on_failure_) { |
| case CRASH_ON_FAILURE: |
| i::DisallowJavascriptExecution::Open(i_isolate, |
| &was_execution_allowed_assert_); |
| break; |
| case THROW_ON_FAILURE: |
| i::ThrowOnJavascriptExecution::Open(i_isolate, |
| &was_execution_allowed_throws_); |
| break; |
| case DUMP_ON_FAILURE: |
| i::DumpOnJavascriptExecution::Open(i_isolate, |
| &was_execution_allowed_dump_); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| Isolate::DisallowJavascriptExecutionScope::~DisallowJavascriptExecutionScope() { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate_); |
| switch (on_failure_) { |
| case CRASH_ON_FAILURE: |
| i::DisallowJavascriptExecution::Close(i_isolate, |
| was_execution_allowed_assert_); |
| break; |
| case THROW_ON_FAILURE: |
| i::ThrowOnJavascriptExecution::Close(i_isolate, |
| was_execution_allowed_throws_); |
| break; |
| case DUMP_ON_FAILURE: |
| i::DumpOnJavascriptExecution::Close(i_isolate, |
| was_execution_allowed_dump_); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| Isolate::AllowJavascriptExecutionScope::AllowJavascriptExecutionScope( |
| Isolate* isolate) |
| : isolate_(isolate) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::AllowJavascriptExecution::Open(i_isolate, &was_execution_allowed_assert_); |
| i::NoThrowOnJavascriptExecution::Open(i_isolate, |
| &was_execution_allowed_throws_); |
| i::NoDumpOnJavascriptExecution::Open(i_isolate, &was_execution_allowed_dump_); |
| } |
| |
| Isolate::AllowJavascriptExecutionScope::~AllowJavascriptExecutionScope() { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate_); |
| i::AllowJavascriptExecution::Close(i_isolate, was_execution_allowed_assert_); |
| i::NoThrowOnJavascriptExecution::Close(i_isolate, |
| was_execution_allowed_throws_); |
| i::NoDumpOnJavascriptExecution::Close(i_isolate, was_execution_allowed_dump_); |
| } |
| |
| Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope( |
| Isolate* isolate, MicrotaskQueue* microtask_queue) |
| : isolate_(reinterpret_cast<i::Isolate*>(isolate)), |
| microtask_queue_(microtask_queue |
| ? static_cast<i::MicrotaskQueue*>(microtask_queue) |
| : isolate_->default_microtask_queue()) { |
| isolate_->thread_local_top()->IncrementCallDepth(this); |
| microtask_queue_->IncrementMicrotasksSuppressions(); |
| } |
| |
| Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope() { |
| microtask_queue_->DecrementMicrotasksSuppressions(); |
| isolate_->thread_local_top()->DecrementCallDepth(this); |
| } |
| |
| Isolate::SafeForTerminationScope::SafeForTerminationScope(v8::Isolate* isolate) |
| : isolate_(reinterpret_cast<i::Isolate*>(isolate)), |
| prev_value_(isolate_->next_v8_call_is_safe_for_termination()) { |
| isolate_->set_next_v8_call_is_safe_for_termination(true); |
| } |
| |
| Isolate::SafeForTerminationScope::~SafeForTerminationScope() { |
| isolate_->set_next_v8_call_is_safe_for_termination(prev_value_); |
| } |
| |
| i::Address* Isolate::GetDataFromSnapshotOnce(size_t index) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this); |
| i::FixedArray list = i_isolate->heap()->serialized_objects(); |
| return GetSerializedDataFromFixedArray(i_isolate, list, index); |
| } |
| |
| void Isolate::GetHeapStatistics(HeapStatistics* heap_statistics) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Heap* heap = isolate->heap(); |
| |
| // The order of acquiring memory statistics is important here. We query in |
| // this order because of concurrent allocation: 1) used memory 2) comitted |
| // physical memory 3) committed memory. Therefore the condition used <= |
| // committed physical <= committed should hold. |
| heap_statistics->used_global_handles_size_ = heap->UsedGlobalHandlesSize(); |
| heap_statistics->total_global_handles_size_ = heap->TotalGlobalHandlesSize(); |
| DCHECK_LE(heap_statistics->used_global_handles_size_, |
| heap_statistics->total_global_handles_size_); |
| |
| heap_statistics->used_heap_size_ = heap->SizeOfObjects(); |
| heap_statistics->total_physical_size_ = heap->CommittedPhysicalMemory(); |
| heap_statistics->total_heap_size_ = heap->CommittedMemory(); |
| |
| heap_statistics->total_available_size_ = heap->Available(); |
| |
| if (!i::ReadOnlyHeap::IsReadOnlySpaceShared()) { |
| i::ReadOnlySpace* ro_space = heap->read_only_space(); |
| heap_statistics->used_heap_size_ += ro_space->Size(); |
| heap_statistics->total_physical_size_ += |
| ro_space->CommittedPhysicalMemory(); |
| heap_statistics->total_heap_size_ += ro_space->CommittedMemory(); |
| } |
| |
| // TODO(dinfuehr): Right now used <= committed physical does not hold. Fix |
| // this and add DCHECK. |
| DCHECK_LE(heap_statistics->used_heap_size_, |
| heap_statistics->total_heap_size_); |
| |
| heap_statistics->total_heap_size_executable_ = |
| heap->CommittedMemoryExecutable(); |
| heap_statistics->heap_size_limit_ = heap->MaxReserved(); |
| // TODO(7424): There is no public API for the {WasmEngine} yet. Once such an |
| // API becomes available we should report the malloced memory separately. For |
| // now we just add the values, thereby over-approximating the peak slightly. |
| heap_statistics->malloced_memory_ = |
| isolate->allocator()->GetCurrentMemoryUsage() + |
| isolate->string_table()->GetCurrentMemoryUsage(); |
| // On 32-bit systems backing_store_bytes() might overflow size_t temporarily |
| // due to concurrent array buffer sweeping. |
| heap_statistics->external_memory_ = |
| isolate->heap()->backing_store_bytes() < SIZE_MAX |
| ? static_cast<size_t>(isolate->heap()->backing_store_bytes()) |
| : SIZE_MAX; |
| heap_statistics->peak_malloced_memory_ = |
| isolate->allocator()->GetMaxMemoryUsage(); |
| heap_statistics->number_of_native_contexts_ = heap->NumberOfNativeContexts(); |
| heap_statistics->number_of_detached_contexts_ = |
| heap->NumberOfDetachedContexts(); |
| heap_statistics->does_zap_garbage_ = heap->ShouldZapGarbage(); |
| |
| #if V8_ENABLE_WEBASSEMBLY |
| heap_statistics->malloced_memory_ += |
| i::wasm::GetWasmEngine()->allocator()->GetCurrentMemoryUsage(); |
| heap_statistics->peak_malloced_memory_ += |
| i::wasm::GetWasmEngine()->allocator()->GetMaxMemoryUsage(); |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| size_t Isolate::NumberOfHeapSpaces() { |
| return i::LAST_SPACE - i::FIRST_SPACE + 1; |
| } |
| |
| bool Isolate::GetHeapSpaceStatistics(HeapSpaceStatistics* space_statistics, |
| size_t index) { |
| if (!space_statistics) return false; |
| if (!i::Heap::IsValidAllocationSpace(static_cast<i::AllocationSpace>(index))) |
| return false; |
| |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Heap* heap = isolate->heap(); |
| |
| i::AllocationSpace allocation_space = static_cast<i::AllocationSpace>(index); |
| space_statistics->space_name_ = i::BaseSpace::GetSpaceName(allocation_space); |
| |
| if (allocation_space == i::RO_SPACE) { |
| if (i::ReadOnlyHeap::IsReadOnlySpaceShared()) { |
| // RO_SPACE memory is accounted for elsewhere when ReadOnlyHeap is shared. |
| space_statistics->space_size_ = 0; |
| space_statistics->space_used_size_ = 0; |
| space_statistics->space_available_size_ = 0; |
| space_statistics->physical_space_size_ = 0; |
| } else { |
| i::ReadOnlySpace* space = heap->read_only_space(); |
| space_statistics->space_size_ = space->CommittedMemory(); |
| space_statistics->space_used_size_ = space->Size(); |
| space_statistics->space_available_size_ = 0; |
| space_statistics->physical_space_size_ = space->CommittedPhysicalMemory(); |
| } |
| } else { |
| i::Space* space = heap->space(static_cast<int>(index)); |
| space_statistics->space_size_ = space ? space->CommittedMemory() : 0; |
| space_statistics->space_used_size_ = space ? space->SizeOfObjects() : 0; |
| space_statistics->space_available_size_ = space ? space->Available() : 0; |
| space_statistics->physical_space_size_ = |
| space ? space->CommittedPhysicalMemory() : 0; |
| } |
| return true; |
| } |
| |
| size_t Isolate::NumberOfTrackedHeapObjectTypes() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Heap* heap = isolate->heap(); |
| return heap->NumberOfTrackedHeapObjectTypes(); |
| } |
| |
| bool Isolate::GetHeapObjectStatisticsAtLastGC( |
| HeapObjectStatistics* object_statistics, size_t type_index) { |
| if (!object_statistics) return false; |
| if (V8_LIKELY(!i::TracingFlags::is_gc_stats_enabled())) return false; |
| |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Heap* heap = isolate->heap(); |
| if (type_index >= heap->NumberOfTrackedHeapObjectTypes()) return false; |
| |
| const char* object_type; |
| const char* object_sub_type; |
| size_t object_count = heap->ObjectCountAtLastGC(type_index); |
| size_t object_size = heap->ObjectSizeAtLastGC(type_index); |
| if (!heap->GetObjectTypeName(type_index, &object_type, &object_sub_type)) { |
| // There should be no objects counted when the type is unknown. |
| DCHECK_EQ(object_count, 0U); |
| DCHECK_EQ(object_size, 0U); |
| return false; |
| } |
| |
| object_statistics->object_type_ = object_type; |
| object_statistics->object_sub_type_ = object_sub_type; |
| object_statistics->object_count_ = object_count; |
| object_statistics->object_size_ = object_size; |
| return true; |
| } |
| |
| bool Isolate::GetHeapCodeAndMetadataStatistics( |
| HeapCodeStatistics* code_statistics) { |
| if (!code_statistics) return false; |
| |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->CollectCodeStatistics(); |
| |
| code_statistics->code_and_metadata_size_ = isolate->code_and_metadata_size(); |
| code_statistics->bytecode_and_metadata_size_ = |
| isolate->bytecode_and_metadata_size(); |
| code_statistics->external_script_source_size_ = |
| isolate->external_script_source_size(); |
| return true; |
| } |
| |
| bool Isolate::MeasureMemory(std::unique_ptr<MeasureMemoryDelegate> delegate, |
| MeasureMemoryExecution execution) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->heap()->MeasureMemory(std::move(delegate), execution); |
| } |
| |
| std::unique_ptr<MeasureMemoryDelegate> MeasureMemoryDelegate::Default( |
| Isolate* isolate, Local<Context> context, |
| Local<Promise::Resolver> promise_resolver, MeasureMemoryMode mode) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| i::Handle<i::NativeContext> native_context = |
| handle(Utils::OpenHandle(*context)->native_context(), i_isolate); |
| i::Handle<i::JSPromise> js_promise = |
| i::Handle<i::JSPromise>::cast(Utils::OpenHandle(*promise_resolver)); |
| return i_isolate->heap()->MeasureMemoryDelegate(native_context, js_promise, |
| mode); |
| } |
| |
| void Isolate::GetStackSample(const RegisterState& state, void** frames, |
| size_t frames_limit, SampleInfo* sample_info) { |
| RegisterState regs = state; |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| if (i::TickSample::GetStackSample(isolate, ®s, |
| i::TickSample::kSkipCEntryFrame, frames, |
| frames_limit, sample_info)) { |
| return; |
| } |
| sample_info->frames_count = 0; |
| sample_info->vm_state = OTHER; |
| sample_info->external_callback_entry = nullptr; |
| } |
| |
| size_t Isolate::NumberOfPhantomHandleResetsSinceLastCall() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->global_handles()->GetAndResetGlobalHandleResetCount(); |
| } |
| |
| int64_t Isolate::AdjustAmountOfExternalAllocatedMemory( |
| int64_t change_in_bytes) { |
| // Try to check for unreasonably large or small values from the embedder. |
| const int64_t kMaxReasonableBytes = int64_t(1) << 60; |
| const int64_t kMinReasonableBytes = -kMaxReasonableBytes; |
| STATIC_ASSERT(kMaxReasonableBytes >= i::JSArrayBuffer::kMaxByteLength); |
| |
| CHECK(kMinReasonableBytes <= change_in_bytes && |
| change_in_bytes < kMaxReasonableBytes); |
| |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this); |
| int64_t amount = i_isolate->heap()->update_external_memory(change_in_bytes); |
| |
| if (change_in_bytes <= 0) return amount; |
| |
| if (amount > i_isolate->heap()->external_memory_limit()) { |
| ReportExternalAllocationLimitReached(); |
| } |
| return amount; |
| } |
| |
| void Isolate::SetEventLogger(LogEventCallback that) { |
| // Do not overwrite the event logger if we want to log explicitly. |
| if (i::FLAG_log_internal_timer_events) return; |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->set_event_logger(that); |
| } |
| |
| void Isolate::AddBeforeCallEnteredCallback(BeforeCallEnteredCallback callback) { |
| if (callback == nullptr) return; |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->AddBeforeCallEnteredCallback(callback); |
| } |
| |
| void Isolate::RemoveBeforeCallEnteredCallback( |
| BeforeCallEnteredCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->RemoveBeforeCallEnteredCallback(callback); |
| } |
| |
| void Isolate::AddCallCompletedCallback(CallCompletedCallback callback) { |
| if (callback == nullptr) return; |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->AddCallCompletedCallback(callback); |
| } |
| |
| void Isolate::RemoveCallCompletedCallback(CallCompletedCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->RemoveCallCompletedCallback(callback); |
| } |
| |
| void Isolate::AtomicsWaitWakeHandle::Wake() { |
| reinterpret_cast<i::AtomicsWaitWakeHandle*>(this)->Wake(); |
| } |
| |
| void Isolate::SetAtomicsWaitCallback(AtomicsWaitCallback callback, void* data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetAtomicsWaitCallback(callback, data); |
| } |
| |
| void Isolate::SetPromiseHook(PromiseHook hook) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetPromiseHook(hook); |
| } |
| |
| void Isolate::SetPromiseRejectCallback(PromiseRejectCallback callback) { |
| if (callback == nullptr) return; |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetPromiseRejectCallback(callback); |
| } |
| |
| void Isolate::PerformMicrotaskCheckpoint() { |
| DCHECK_NE(MicrotasksPolicy::kScoped, GetMicrotasksPolicy()); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->default_microtask_queue()->PerformCheckpoint(this); |
| } |
| |
| void Isolate::EnqueueMicrotask(Local<Function> v8_function) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::Handle<i::JSReceiver> function = Utils::OpenHandle(*v8_function); |
| i::Handle<i::NativeContext> handler_context; |
| if (!i::JSReceiver::GetContextForMicrotask(function).ToHandle( |
| &handler_context)) |
| handler_context = isolate->native_context(); |
| MicrotaskQueue* microtask_queue = handler_context->microtask_queue(); |
| if (microtask_queue) microtask_queue->EnqueueMicrotask(this, v8_function); |
| } |
| |
| void Isolate::EnqueueMicrotask(MicrotaskCallback callback, void* data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->default_microtask_queue()->EnqueueMicrotask(this, callback, data); |
| } |
| |
| void Isolate::SetMicrotasksPolicy(MicrotasksPolicy policy) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->default_microtask_queue()->set_microtasks_policy(policy); |
| } |
| |
| MicrotasksPolicy Isolate::GetMicrotasksPolicy() const { |
| i::Isolate* isolate = |
| reinterpret_cast<i::Isolate*>(const_cast<Isolate*>(this)); |
| return isolate->default_microtask_queue()->microtasks_policy(); |
| } |
| |
| void Isolate::AddMicrotasksCompletedCallback( |
| MicrotasksCompletedCallbackWithData callback, void* data) { |
| DCHECK(callback); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->default_microtask_queue()->AddMicrotasksCompletedCallback(callback, |
| data); |
| } |
| |
| void Isolate::RemoveMicrotasksCompletedCallback( |
| MicrotasksCompletedCallbackWithData callback, void* data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->default_microtask_queue()->RemoveMicrotasksCompletedCallback( |
| callback, data); |
| } |
| |
| void Isolate::SetUseCounterCallback(UseCounterCallback callback) { |
| reinterpret_cast<i::Isolate*>(this)->SetUseCounterCallback(callback); |
| } |
| |
| void Isolate::SetCounterFunction(CounterLookupCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->counters()->ResetCounterFunction(callback); |
| } |
| |
| void Isolate::SetCreateHistogramFunction(CreateHistogramCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->counters()->ResetCreateHistogramFunction(callback); |
| } |
| |
| void Isolate::SetAddHistogramSampleFunction( |
| AddHistogramSampleCallback callback) { |
| reinterpret_cast<i::Isolate*>(this) |
| ->counters() |
| ->SetAddHistogramSampleFunction(callback); |
| } |
| |
| void Isolate::SetMetricsRecorder( |
| const std::shared_ptr<metrics::Recorder>& metrics_recorder) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->metrics_recorder()->SetEmbedderRecorder(isolate, metrics_recorder); |
| } |
| |
| void Isolate::SetAddCrashKeyCallback(AddCrashKeyCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetAddCrashKeyCallback(callback); |
| } |
| |
| bool Isolate::IdleNotificationDeadline(double deadline_in_seconds) { |
| // Returning true tells the caller that it need not |
| // continue to call IdleNotification. |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| if (!i::FLAG_use_idle_notification) return true; |
| return isolate->heap()->IdleNotification(deadline_in_seconds); |
| } |
| |
| void Isolate::LowMemoryNotification() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| { |
| i::NestedTimedHistogramScope idle_notification_scope( |
| isolate->counters()->gc_low_memory_notification()); |
| TRACE_EVENT0("v8", "V8.GCLowMemoryNotification"); |
| isolate->heap()->CollectAllAvailableGarbage( |
| i::GarbageCollectionReason::kLowMemoryNotification); |
| } |
| } |
| |
| int Isolate::ContextDisposedNotification(bool dependant_context) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| #if V8_ENABLE_WEBASSEMBLY |
| if (!dependant_context) { |
| if (!isolate->context().is_null()) { |
| // We left the current context, we can abort all WebAssembly compilations |
| // of that context. |
| // A handle scope for the native context. |
| i::HandleScope handle_scope(isolate); |
| i::wasm::GetWasmEngine()->DeleteCompileJobsOnContext( |
| isolate->native_context()); |
| } |
| } |
| #endif // V8_ENABLE_WEBASSEMBLY |
| // TODO(ahaas): move other non-heap activity out of the heap call. |
| return isolate->heap()->NotifyContextDisposed(dependant_context); |
| } |
| |
| void Isolate::IsolateInForegroundNotification() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->IsolateInForegroundNotification(); |
| } |
| |
| void Isolate::IsolateInBackgroundNotification() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->IsolateInBackgroundNotification(); |
| } |
| |
| void Isolate::MemoryPressureNotification(MemoryPressureLevel level) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| bool on_isolate_thread = |
| v8::Locker::IsActive() |
| ? isolate->thread_manager()->IsLockedByCurrentThread() |
| : i::ThreadId::Current() == isolate->thread_id(); |
| isolate->heap()->MemoryPressureNotification(level, on_isolate_thread); |
| } |
| |
| void Isolate::ClearCachesForTesting() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->AbortConcurrentOptimization(i::BlockingBehavior::kBlock); |
| isolate->ClearSerializerData(); |
| } |
| |
| void Isolate::EnableMemorySavingsMode() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->EnableMemorySavingsMode(); |
| } |
| |
| void Isolate::DisableMemorySavingsMode() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->DisableMemorySavingsMode(); |
| } |
| |
| void Isolate::SetRAILMode(RAILMode rail_mode) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->SetRAILMode(rail_mode); |
| } |
| |
| void Isolate::UpdateLoadStartTime() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->UpdateLoadStartTime(); |
| } |
| |
| void Isolate::IncreaseHeapLimitForDebugging() { |
| // No-op. |
| } |
| |
| void Isolate::RestoreOriginalHeapLimit() { |
| // No-op. |
| } |
| |
| bool Isolate::IsHeapLimitIncreasedForDebugging() { return false; } |
| |
| void Isolate::SetJitCodeEventHandler(JitCodeEventOptions options, |
| JitCodeEventHandler event_handler) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| // Ensure that logging is initialized for our isolate. |
| isolate->InitializeLoggingAndCounters(); |
| isolate->logger()->SetCodeEventHandler(options, event_handler); |
| } |
| |
| void Isolate::SetStackLimit(uintptr_t stack_limit) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| CHECK(stack_limit); |
| isolate->stack_guard()->SetStackLimit(stack_limit); |
| } |
| |
| void Isolate::GetCodeRange(void** start, size_t* length_in_bytes) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| const base::AddressRegion& code_region = isolate->heap()->code_region(); |
| *start = reinterpret_cast<void*>(code_region.begin()); |
| *length_in_bytes = code_region.size(); |
| } |
| |
| void Isolate::GetEmbeddedCodeRange(const void** start, |
| size_t* length_in_bytes) { |
| // Note, we should return the embedded code rande from the .text section here. |
| i::EmbeddedData d = i::EmbeddedData::FromBlob(); |
| *start = reinterpret_cast<const void*>(d.code()); |
| *length_in_bytes = d.code_size(); |
| } |
| |
| JSEntryStubs Isolate::GetJSEntryStubs() { |
| JSEntryStubs entry_stubs; |
| |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| std::array<std::pair<i::Builtin, JSEntryStub*>, 3> stubs = { |
| {{i::Builtin::kJSEntry, &entry_stubs.js_entry_stub}, |
| {i::Builtin::kJSConstructEntry, &entry_stubs.js_construct_entry_stub}, |
| {i::Builtin::kJSRunMicrotasksEntry, |
| &entry_stubs.js_run_microtasks_entry_stub}}}; |
| for (auto& pair : stubs) { |
| i::Code js_entry = isolate->heap()->builtin(pair.first); |
| pair.second->code.start = |
| reinterpret_cast<const void*>(js_entry.InstructionStart()); |
| pair.second->code.length_in_bytes = js_entry.InstructionSize(); |
| } |
| |
| return entry_stubs; |
| } |
| |
| size_t Isolate::CopyCodePages(size_t capacity, MemoryRange* code_pages_out) { |
| #if !defined(V8_TARGET_ARCH_64_BIT) && !defined(V8_TARGET_ARCH_ARM) |
| // Not implemented on other platforms. |
| UNREACHABLE(); |
| #else |
| |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| std::vector<MemoryRange>* code_pages = isolate->GetCodePages(); |
| |
| DCHECK_NOT_NULL(code_pages); |
| |
| // Copy as many elements into the output vector as we can. If the |
| // caller-provided buffer is not big enough, we fill it, and the caller can |
| // provide a bigger one next time. We do it this way because allocation is not |
| // allowed in signal handlers. |
| size_t limit = std::min(capacity, code_pages->size()); |
| for (size_t i = 0; i < limit; i++) { |
| code_pages_out[i] = code_pages->at(i); |
| } |
| return code_pages->size(); |
| #endif |
| } |
| |
| #define CALLBACK_SETTER(ExternalName, Type, InternalName) \ |
| void Isolate::Set##ExternalName(Type callback) { \ |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); \ |
| isolate->set_##InternalName(callback); \ |
| } |
| |
| CALLBACK_SETTER(FatalErrorHandler, FatalErrorCallback, exception_behavior) |
| CALLBACK_SETTER(OOMErrorHandler, OOMErrorCallback, oom_behavior) |
| CALLBACK_SETTER(ModifyCodeGenerationFromStringsCallback, |
| ModifyCodeGenerationFromStringsCallback2, |
| modify_code_gen_callback2) |
| CALLBACK_SETTER(AllowWasmCodeGenerationCallback, |
| AllowWasmCodeGenerationCallback, allow_wasm_code_gen_callback) |
| |
| CALLBACK_SETTER(WasmModuleCallback, ExtensionCallback, wasm_module_callback) |
| CALLBACK_SETTER(WasmInstanceCallback, ExtensionCallback, wasm_instance_callback) |
| |
| CALLBACK_SETTER(WasmStreamingCallback, WasmStreamingCallback, |
| wasm_streaming_callback) |
| |
| CALLBACK_SETTER(WasmLoadSourceMapCallback, WasmLoadSourceMapCallback, |
| wasm_load_source_map_callback) |
| |
| CALLBACK_SETTER(WasmSimdEnabledCallback, WasmSimdEnabledCallback, |
| wasm_simd_enabled_callback) |
| |
| CALLBACK_SETTER(WasmExceptionsEnabledCallback, WasmExceptionsEnabledCallback, |
| wasm_exceptions_enabled_callback) |
| |
| CALLBACK_SETTER(SharedArrayBufferConstructorEnabledCallback, |
| SharedArrayBufferConstructorEnabledCallback, |
| sharedarraybuffer_constructor_enabled_callback) |
| |
| void Isolate::InstallConditionalFeatures(Local<Context> context) { |
| v8::HandleScope handle_scope(this); |
| v8::Context::Scope context_scope(context); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->InstallConditionalFeatures(Utils::OpenHandle(*context)); |
| #if V8_ENABLE_WEBASSEMBLY |
| if (i::FLAG_expose_wasm) { |
| i::WasmJs::InstallConditionalFeatures(isolate, Utils::OpenHandle(*context)); |
| } |
| #endif // V8_ENABLE_WEBASSEMBLY |
| } |
| |
| void Isolate::AddNearHeapLimitCallback(v8::NearHeapLimitCallback callback, |
| void* data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->AddNearHeapLimitCallback(callback, data); |
| } |
| |
| void Isolate::RemoveNearHeapLimitCallback(v8::NearHeapLimitCallback callback, |
| size_t heap_limit) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->RemoveNearHeapLimitCallback(callback, heap_limit); |
| } |
| |
| void Isolate::AutomaticallyRestoreInitialHeapLimit(double threshold_percent) { |
| DCHECK_GT(threshold_percent, 0.0); |
| DCHECK_LT(threshold_percent, 1.0); |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->AutomaticallyRestoreInitialHeapLimit(threshold_percent); |
| } |
| |
| bool Isolate::IsDead() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->IsDead(); |
| } |
| |
| bool Isolate::AddMessageListener(MessageCallback that, Local<Value> data) { |
| return AddMessageListenerWithErrorLevel(that, kMessageError, data); |
| } |
| |
| bool Isolate::AddMessageListenerWithErrorLevel(MessageCallback that, |
| int message_levels, |
| Local<Value> data) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| i::Handle<i::TemplateList> list = isolate->factory()->message_listeners(); |
| i::Handle<i::FixedArray> listener = isolate->factory()->NewFixedArray(3); |
| i::Handle<i::Foreign> foreign = |
| isolate->factory()->NewForeign(FUNCTION_ADDR(that)); |
| listener->set(0, *foreign); |
| listener->set(1, data.IsEmpty() ? i::ReadOnlyRoots(isolate).undefined_value() |
| : *Utils::OpenHandle(*data)); |
| listener->set(2, i::Smi::FromInt(message_levels)); |
| list = i::TemplateList::Add(isolate, list, listener); |
| isolate->heap()->SetMessageListeners(*list); |
| return true; |
| } |
| |
| void Isolate::RemoveMessageListeners(MessageCallback that) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| i::HandleScope scope(isolate); |
| i::DisallowGarbageCollection no_gc; |
| i::TemplateList listeners = isolate->heap()->message_listeners(); |
| for (int i = 0; i < listeners.length(); i++) { |
| if (listeners.get(i).IsUndefined(isolate)) continue; // skip deleted ones |
| i::FixedArray listener = i::FixedArray::cast(listeners.get(i)); |
| i::Foreign callback_obj = i::Foreign::cast(listener.get(0)); |
| if (callback_obj.foreign_address() == FUNCTION_ADDR(that)) { |
| listeners.set(i, i::ReadOnlyRoots(isolate).undefined_value()); |
| } |
| } |
| } |
| |
| void Isolate::SetFailedAccessCheckCallbackFunction( |
| FailedAccessCheckCallback callback) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetFailedAccessCheckCallback(callback); |
| } |
| |
| void Isolate::SetCaptureStackTraceForUncaughtExceptions( |
| bool capture, int frame_limit, StackTrace::StackTraceOptions options) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->SetCaptureStackTraceForUncaughtExceptions(capture, frame_limit, |
| options); |
| } |
| |
| void Isolate::VisitExternalResources(ExternalResourceVisitor* visitor) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->heap()->VisitExternalResources(visitor); |
| } |
| |
| bool Isolate::IsInUse() { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| return isolate->IsInUse(); |
| } |
| |
| void Isolate::VisitHandlesWithClassIds(PersistentHandleVisitor* visitor) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::DisallowGarbageCollection no_gc; |
| isolate->global_handles()->IterateAllRootsWithClassIds(visitor); |
| } |
| |
| void Isolate::VisitWeakHandles(PersistentHandleVisitor* visitor) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| i::DisallowGarbageCollection no_gc; |
| isolate->global_handles()->IterateYoungWeakRootsWithClassIds(visitor); |
| } |
| |
| void Isolate::SetAllowAtomicsWait(bool allow) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(this); |
| isolate->set_allow_atomics_wait(allow); |
| } |
| |
| void v8::Isolate::DateTimeConfigurationChangeNotification( |
| TimeZoneDetection time_zone_detection) { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this); |
| LOG_API(i_isolate, Isolate, DateTimeConfigurationChangeNotification); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i_isolate->date_cache()->ResetDateCache( |
| static_cast<base::TimezoneCache::TimeZoneDetection>(time_zone_detection)); |
| #ifdef V8_INTL_SUPPORT |
| i_isolate->clear_cached_icu_object( |
| i::Isolate::ICUObjectCacheType::kDefaultSimpleDateFormat); |
| i_isolate->clear_cached_icu_object( |
| i::Isolate::ICUObjectCacheType::kDefaultSimpleDateFormatForTime); |
| i_isolate->clear_cached_icu_object( |
| i::Isolate::ICUObjectCacheType::kDefaultSimpleDateFormatForDate); |
| #endif // V8_INTL_SUPPORT |
| } |
| |
| void v8::Isolate::LocaleConfigurationChangeNotification() { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(this); |
| LOG_API(i_isolate, Isolate, LocaleConfigurationChangeNotification); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| |
| #ifdef V8_INTL_SUPPORT |
| i_isolate->ResetDefaultLocale(); |
| i_isolate->clear_cached_icu_objects(); |
| #endif // V8_INTL_SUPPORT |
| } |
| |
| bool v8::Object::IsCodeLike(v8::Isolate* isolate) const { |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| LOG_API(i_isolate, Object, IsCodeLike); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::HandleScope scope(i_isolate); |
| return Utils::OpenHandle(this)->IsCodeLike(i_isolate); |
| } |
| |
| // static |
| std::unique_ptr<MicrotaskQueue> MicrotaskQueue::New(Isolate* isolate, |
| MicrotasksPolicy policy) { |
| auto microtask_queue = |
| i::MicrotaskQueue::New(reinterpret_cast<i::Isolate*>(isolate)); |
| microtask_queue->set_microtasks_policy(policy); |
| std::unique_ptr<MicrotaskQueue> ret(std::move(microtask_queue)); |
| return ret; |
| } |
| |
| MicrotasksScope::MicrotasksScope(Isolate* isolate, MicrotasksScope::Type type) |
| : MicrotasksScope(isolate, nullptr, type) {} |
| |
| MicrotasksScope::MicrotasksScope(Isolate* isolate, |
| MicrotaskQueue* microtask_queue, |
| MicrotasksScope::Type type) |
| : isolate_(reinterpret_cast<i::Isolate*>(isolate)), |
| microtask_queue_(microtask_queue |
| ? static_cast<i::MicrotaskQueue*>(microtask_queue) |
| : isolate_->default_microtask_queue()), |
| run_(type == MicrotasksScope::kRunMicrotasks) { |
| if (run_) microtask_queue_->IncrementMicrotasksScopeDepth(); |
| #ifdef DEBUG |
| if (!run_) microtask_queue_->IncrementDebugMicrotasksScopeDepth(); |
| #endif |
| } |
| |
| MicrotasksScope::~MicrotasksScope() { |
| if (run_) { |
| microtask_queue_->DecrementMicrotasksScopeDepth(); |
| if (MicrotasksPolicy::kScoped == microtask_queue_->microtasks_policy() && |
| !isolate_->has_scheduled_exception()) { |
| DCHECK_IMPLIES(isolate_->has_scheduled_exception(), |
| isolate_->scheduled_exception() == |
| i::ReadOnlyRoots(isolate_).termination_exception()); |
| microtask_queue_->PerformCheckpoint(reinterpret_cast<Isolate*>(isolate_)); |
| } |
| } |
| #ifdef DEBUG |
| if (!run_) microtask_queue_->DecrementDebugMicrotasksScopeDepth(); |
| #endif |
| } |
| |
| // static |
| void MicrotasksScope::PerformCheckpoint(Isolate* v8_isolate) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| auto* microtask_queue = isolate->default_microtask_queue(); |
| microtask_queue->PerformCheckpoint(v8_isolate); |
| } |
| |
| // static |
| int MicrotasksScope::GetCurrentDepth(Isolate* v8_isolate) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| auto* microtask_queue = isolate->default_microtask_queue(); |
| return microtask_queue->GetMicrotasksScopeDepth(); |
| } |
| |
| // static |
| bool MicrotasksScope::IsRunningMicrotasks(Isolate* v8_isolate) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(v8_isolate); |
| auto* microtask_queue = isolate->default_microtask_queue(); |
| return microtask_queue->IsRunningMicrotasks(); |
| } |
| |
| String::Utf8Value::Utf8Value(v8::Isolate* isolate, v8::Local<v8::Value> obj) |
| : str_(nullptr), length_(0) { |
| if (obj.IsEmpty()) return; |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_DO_NOT_USE(i_isolate); |
| i::HandleScope scope(i_isolate); |
| Local<Context> context = isolate->GetCurrentContext(); |
| TryCatch try_catch(isolate); |
| Local<String> str; |
| if (!obj->ToString(context).ToLocal(&str)) return; |
| length_ = str->Utf8Length(isolate); |
| str_ = i::NewArray<char>(length_ + 1); |
| str->WriteUtf8(isolate, str_); |
| } |
| |
| String::Utf8Value::~Utf8Value() { i::DeleteArray(str_); } |
| |
| String::Value::Value(v8::Isolate* isolate, v8::Local<v8::Value> obj) |
| : str_(nullptr), length_(0) { |
| if (obj.IsEmpty()) return; |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_DO_NOT_USE(i_isolate); |
| i::HandleScope scope(i_isolate); |
| Local<Context> context = isolate->GetCurrentContext(); |
| TryCatch try_catch(isolate); |
| Local<String> str; |
| if (!obj->ToString(context).ToLocal(&str)) return; |
| length_ = str->Length(); |
| str_ = i::NewArray<uint16_t>(length_ + 1); |
| str->Write(isolate, str_); |
| } |
| |
| String::Value::~Value() { i::DeleteArray(str_); } |
| |
| #define DEFINE_ERROR(NAME, name) \ |
| Local<Value> Exception::NAME(v8::Local<v8::String> raw_message) { \ |
| i::Isolate* isolate = i::Isolate::Current(); \ |
| LOG_API(isolate, NAME, New); \ |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); \ |
| i::Object error; \ |
| { \ |
| i::HandleScope scope(isolate); \ |
| i::Handle<i::String> message = Utils::OpenHandle(*raw_message); \ |
| i::Handle<i::JSFunction> constructor = isolate->name##_function(); \ |
| error = *isolate->factory()->NewError(constructor, message); \ |
| } \ |
| i::Handle<i::Object> result(error, isolate); \ |
| return Utils::ToLocal(result); \ |
| } |
| |
| DEFINE_ERROR(RangeError, range_error) |
| DEFINE_ERROR(ReferenceError, reference_error) |
| DEFINE_ERROR(SyntaxError, syntax_error) |
| DEFINE_ERROR(TypeError, type_error) |
| DEFINE_ERROR(WasmCompileError, wasm_compile_error) |
| DEFINE_ERROR(WasmLinkError, wasm_link_error) |
| DEFINE_ERROR(WasmRuntimeError, wasm_runtime_error) |
| DEFINE_ERROR(Error, error) |
| |
| #undef DEFINE_ERROR |
| |
| Local<Message> Exception::CreateMessage(Isolate* isolate, |
| Local<Value> exception) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(*exception); |
| i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); |
| i::HandleScope scope(i_isolate); |
| return Utils::MessageToLocal( |
| scope.CloseAndEscape(i_isolate->CreateMessage(obj, nullptr))); |
| } |
| |
| Local<StackTrace> Exception::GetStackTrace(Local<Value> exception) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(*exception); |
| if (!obj->IsJSObject()) return Local<StackTrace>(); |
| i::Handle<i::JSObject> js_obj = i::Handle<i::JSObject>::cast(obj); |
| i::Isolate* isolate = js_obj->GetIsolate(); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| return Utils::StackTraceToLocal(isolate->GetDetailedStackTrace(js_obj)); |
| } |
| |
| v8::MaybeLocal<v8::Array> v8::Object::PreviewEntries(bool* is_key_value) { |
| if (IsMap()) { |
| *is_key_value = true; |
| return Map::Cast(this)->AsArray(); |
| } |
| if (IsSet()) { |
| *is_key_value = false; |
| return Set::Cast(this)->AsArray(); |
| } |
| |
| i::Handle<i::JSReceiver> object = Utils::OpenHandle(this); |
| i::Isolate* isolate = object->GetIsolate(); |
| Isolate* v8_isolate = reinterpret_cast<Isolate*>(isolate); |
| ENTER_V8_NO_SCRIPT_NO_EXCEPTION(isolate); |
| if (object->IsJSWeakCollection()) { |
| *is_key_value = object->IsJSWeakMap(); |
| return Utils::ToLocal(i::JSWeakCollection::GetEntries( |
| i::Handle<i::JSWeakCollection>::cast(object), 0)); |
| } |
| if (object->IsJSMapIterator()) { |
| i::Handle<i::JSMapIterator> it = i::Handle<i::JSMapIterator>::cast(object); |
| MapAsArrayKind const kind = |
| static_cast<MapAsArrayKind>(it->map().instance_type()); |
| *is_key_value = kind == MapAsArrayKind::kEntries; |
| if (!it->HasMore()) return v8::Array::New(v8_isolate); |
| return Utils::ToLocal( |
| MapAsArray(isolate, it->table(), i::Smi::ToInt(it->index()), kind)); |
| } |
| if (object->IsJSSetIterator()) { |
| i::Handle<i::JSSetIterator> it = i::Handle<i::JSSetIterator>::cast(object); |
| SetAsArrayKind const kind = |
| static_cast<SetAsArrayKind>(it->map().instance_type()); |
| *is_key_value = kind == SetAsArrayKind::kEntries; |
| if (!it->HasMore()) return v8::Array::New(v8_isolate); |
| return Utils::ToLocal( |
| SetAsArray(isolate, it->table(), i::Smi::ToInt(it->index()), kind)); |
| } |
| return v8::MaybeLocal<v8::Array>(); |
| } |
| |
| Local<String> CpuProfileNode::GetFunctionName() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| i::Isolate* isolate = node->isolate(); |
| const i::CodeEntry* entry = node->entry(); |
| i::Handle<i::String> name = |
| isolate->factory()->InternalizeUtf8String(entry->name()); |
| return ToApiHandle<String>(name); |
| } |
| |
| const char* CpuProfileNode::GetFunctionNameStr() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| return node->entry()->name(); |
| } |
| |
| int CpuProfileNode::GetScriptId() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| const i::CodeEntry* entry = node->entry(); |
| return entry->script_id(); |
| } |
| |
| Local<String> CpuProfileNode::GetScriptResourceName() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| i::Isolate* isolate = node->isolate(); |
| return ToApiHandle<String>(isolate->factory()->InternalizeUtf8String( |
| node->entry()->resource_name())); |
| } |
| |
| const char* CpuProfileNode::GetScriptResourceNameStr() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| return node->entry()->resource_name(); |
| } |
| |
| bool CpuProfileNode::IsScriptSharedCrossOrigin() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| return node->entry()->is_shared_cross_origin(); |
| } |
| |
| int CpuProfileNode::GetLineNumber() const { |
| return reinterpret_cast<const i::ProfileNode*>(this)->line_number(); |
| } |
| |
| int CpuProfileNode::GetColumnNumber() const { |
| return reinterpret_cast<const i::ProfileNode*>(this) |
| ->entry() |
| ->column_number(); |
| } |
| |
| unsigned int CpuProfileNode::GetHitLineCount() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| return node->GetHitLineCount(); |
| } |
| |
| bool CpuProfileNode::GetLineTicks(LineTick* entries, |
| unsigned int length) const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| return node->GetLineTicks(entries, length); |
| } |
| |
| const char* CpuProfileNode::GetBailoutReason() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| return node->entry()->bailout_reason(); |
| } |
| |
| unsigned CpuProfileNode::GetHitCount() const { |
| return reinterpret_cast<const i::ProfileNode*>(this)->self_ticks(); |
| } |
| |
| unsigned CpuProfileNode::GetNodeId() const { |
| return reinterpret_cast<const i::ProfileNode*>(this)->id(); |
| } |
| |
| CpuProfileNode::SourceType CpuProfileNode::GetSourceType() const { |
| return reinterpret_cast<const i::ProfileNode*>(this)->source_type(); |
| } |
| |
| int CpuProfileNode::GetChildrenCount() const { |
| return static_cast<int>( |
| reinterpret_cast<const i::ProfileNode*>(this)->children()->size()); |
| } |
| |
| const CpuProfileNode* CpuProfileNode::GetChild(int index) const { |
| const i::ProfileNode* child = |
| reinterpret_cast<const i::ProfileNode*>(this)->children()->at(index); |
| return reinterpret_cast<const CpuProfileNode*>(child); |
| } |
| |
| const CpuProfileNode* CpuProfileNode::GetParent() const { |
| const i::ProfileNode* parent = |
| reinterpret_cast<const i::ProfileNode*>(this)->parent(); |
| return reinterpret_cast<const CpuProfileNode*>(parent); |
| } |
| |
| const std::vector<CpuProfileDeoptInfo>& CpuProfileNode::GetDeoptInfos() const { |
| const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this); |
| return node->deopt_infos(); |
| } |
| |
| void CpuProfile::Delete() { |
| i::CpuProfile* profile = reinterpret_cast<i::CpuProfile*>(this); |
| i::CpuProfiler* profiler = profile->cpu_profiler(); |
| DCHECK_NOT_NULL(profiler); |
| profiler->DeleteProfile(profile); |
| } |
| |
| Local<String> CpuProfile::GetTitle() const { |
| const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); |
| i::Isolate* isolate = profile->top_down()->isolate(); |
| return ToApiHandle<String>( |
| isolate->factory()->InternalizeUtf8String(profile->title())); |
| } |
| |
| const CpuProfileNode* CpuProfile::GetTopDownRoot() const { |
| const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); |
| return reinterpret_cast<const CpuProfileNode*>(profile->top_down()->root()); |
| } |
| |
| const CpuProfileNode* CpuProfile::GetSample(int index) const { |
| const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); |
| return reinterpret_cast<const CpuProfileNode*>(profile->sample(index).node); |
| } |
| |
| const int CpuProfileNode::kNoLineNumberInfo; |
| const int CpuProfileNode::kNoColumnNumberInfo; |
| |
| int64_t CpuProfile::GetSampleTimestamp(int index) const { |
| const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); |
| return profile->sample(index).timestamp.since_origin().InMicroseconds(); |
| } |
| |
| int64_t CpuProfile::GetStartTime() const { |
| const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); |
| return profile->start_time().since_origin().InMicroseconds(); |
| } |
| |
| int64_t CpuProfile::GetEndTime() const { |
| const i::CpuProfile* profile = reinterpret_cast<const i::CpuProfile*>(this); |
| return profile->end_time().since_origin().InMicroseconds(); |
| } |
| |
| int CpuProfile::GetSamplesCount() const { |
| return reinterpret_cast<const i::CpuProfile*>(this)->samples_count(); |
| } |
| |
| CpuProfiler* CpuProfiler::New(Isolate* isolate, |
| CpuProfilingNamingMode naming_mode, |
| CpuProfilingLoggingMode logging_mode) { |
| return reinterpret_cast<CpuProfiler*>(new i::CpuProfiler( |
| reinterpret_cast<i::Isolate*>(isolate), naming_mode, logging_mode)); |
| } |
| |
| CpuProfilingOptions::CpuProfilingOptions(CpuProfilingMode mode, |
| unsigned max_samples, |
| int sampling_interval_us, |
| MaybeLocal<Context> filter_context) |
| : mode_(mode), |
| max_samples_(max_samples), |
| sampling_interval_us_(sampling_interval_us) { |
| if (!filter_context.IsEmpty()) { |
| Local<Context> local_filter_context = filter_context.ToLocalChecked(); |
| filter_context_.Reset(local_filter_context->GetIsolate(), |
| local_filter_context); |
| filter_context_.SetWeak(); |
| } |
| } |
| |
| void* CpuProfilingOptions::raw_filter_context() const { |
| return reinterpret_cast<void*>( |
| i::Context::cast(*Utils::OpenPersistent(filter_context_)) |
| .native_context() |
| .address()); |
| } |
| |
| void CpuProfiler::Dispose() { delete reinterpret_cast<i::CpuProfiler*>(this); } |
| |
| // static |
| void CpuProfiler::CollectSample(Isolate* isolate) { |
| i::CpuProfiler::CollectSample(reinterpret_cast<i::Isolate*>(isolate)); |
| } |
| |
| void CpuProfiler::SetSamplingInterval(int us) { |
| DCHECK_GE(us, 0); |
| return reinterpret_cast<i::CpuProfiler*>(this)->set_sampling_interval( |
| base::TimeDelta::FromMicroseconds(us)); |
| } |
| |
| void CpuProfiler::SetUsePreciseSampling(bool use_precise_sampling) { |
| reinterpret_cast<i::CpuProfiler*>(this)->set_use_precise_sampling( |
| use_precise_sampling); |
| } |
| |
| CpuProfilingStatus CpuProfiler::StartProfiling( |
| Local<String> title, CpuProfilingOptions options, |
| std::unique_ptr<DiscardedSamplesDelegate> delegate) { |
| return reinterpret_cast<i::CpuProfiler*>(this)->StartProfiling( |
| *Utils::OpenHandle(*title), options, std::move(delegate)); |
| } |
| |
| CpuProfilingStatus CpuProfiler::StartProfiling(Local<String> title, |
| bool record_samples) { |
| CpuProfilingOptions options( |
| kLeafNodeLineNumbers, |
| record_samples ? CpuProfilingOptions::kNoSampleLimit : 0); |
| return reinterpret_cast<i::CpuProfiler*>(this)->StartProfiling( |
| *Utils::OpenHandle(*title), options); |
| } |
| |
| CpuProfilingStatus CpuProfiler::StartProfiling(Local<String> title, |
| CpuProfilingMode mode, |
| bool record_samples, |
| unsigned max_samples) { |
| CpuProfilingOptions options(mode, record_samples ? max_samples : 0); |
| return reinterpret_cast<i::CpuProfiler*>(this)->StartProfiling( |
| *Utils::OpenHandle(*title), options); |
| } |
| |
| CpuProfile* CpuProfiler::StopProfiling(Local<String> title) { |
| return reinterpret_cast<CpuProfile*>( |
| reinterpret_cast<i::CpuProfiler*>(this)->StopProfiling( |
| *Utils::OpenHandle(*title))); |
| } |
| |
| void CpuProfiler::UseDetailedSourcePositionsForProfiling(Isolate* isolate) { |
| reinterpret_cast<i::Isolate*>(isolate) |
| ->SetDetailedSourcePositionsForProfiling(true); |
| } |
| |
| uintptr_t CodeEvent::GetCodeStartAddress() { |
| return reinterpret_cast<i::CodeEvent*>(this)->code_start_address; |
| } |
| |
| size_t CodeEvent::GetCodeSize() { |
| return reinterpret_cast<i::CodeEvent*>(this)->code_size; |
| } |
| |
| Local<String> CodeEvent::GetFunctionName() { |
| return ToApiHandle<String>( |
| reinterpret_cast<i::CodeEvent*>(this)->function_name); |
| } |
| |
| Local<String> CodeEvent::GetScriptName() { |
| return ToApiHandle<String>( |
| reinterpret_cast<i::CodeEvent*>(this)->script_name); |
| } |
| |
| int CodeEvent::GetScriptLine() { |
| return reinterpret_cast<i::CodeEvent*>(this)->script_line; |
| } |
| |
| int CodeEvent::GetScriptColumn() { |
| return reinterpret_cast<i::CodeEvent*>(this)->script_column; |
| } |
| |
| CodeEventType CodeEvent::GetCodeType() { |
| return reinterpret_cast<i::CodeEvent*>(this)->code_type; |
| } |
| |
| const char* CodeEvent::GetComment() { |
| return reinterpret_cast<i::CodeEvent*>(this)->comment; |
| } |
| |
| uintptr_t CodeEvent::GetPreviousCodeStartAddress() { |
| return reinterpret_cast<i::CodeEvent*>(this)->previous_code_start_address; |
| } |
| |
| const char* CodeEvent::GetCodeEventTypeName(CodeEventType code_event_type) { |
| switch (code_event_type) { |
| case kUnknownType: |
| return "Unknown"; |
| #define V(Name) \ |
| case k##Name##Type: \ |
| return #Name; |
| CODE_EVENTS_LIST(V) |
| #undef V |
| } |
| // The execution should never pass here |
| UNREACHABLE(); |
| } |
| |
| CodeEventHandler::CodeEventHandler(Isolate* isolate) { |
| internal_listener_ = |
| new i::ExternalCodeEventListener(reinterpret_cast<i::Isolate*>(isolate)); |
| } |
| |
| CodeEventHandler::~CodeEventHandler() { |
| delete reinterpret_cast<i::ExternalCodeEventListener*>(internal_listener_); |
| } |
| |
| void CodeEventHandler::Enable() { |
| reinterpret_cast<i::ExternalCodeEventListener*>(internal_listener_) |
| ->StartListening(this); |
| } |
| |
| void CodeEventHandler::Disable() { |
| reinterpret_cast<i::ExternalCodeEventListener*>(internal_listener_) |
| ->StopListening(); |
| } |
| |
| static i::HeapGraphEdge* ToInternal(const HeapGraphEdge* edge) { |
| return const_cast<i::HeapGraphEdge*>( |
| reinterpret_cast<const i::HeapGraphEdge*>(edge)); |
| } |
| |
| HeapGraphEdge::Type HeapGraphEdge::GetType() const { |
| return static_cast<HeapGraphEdge::Type>(ToInternal(this)->type()); |
| } |
| |
| Local<Value> HeapGraphEdge::GetName() const { |
| i::HeapGraphEdge* edge = ToInternal(this); |
| i::Isolate* isolate = edge->isolate(); |
| switch (edge->type()) { |
| case i::HeapGraphEdge::kContextVariable: |
| case i::HeapGraphEdge::kInternal: |
| case i::HeapGraphEdge::kProperty: |
| case i::HeapGraphEdge::kShortcut: |
| case i::HeapGraphEdge::kWeak: |
| return ToApiHandle<String>( |
| isolate->factory()->InternalizeUtf8String(edge->name())); |
| case i::HeapGraphEdge::kElement: |
| case i::HeapGraphEdge::kHidden: |
| return ToApiHandle<Number>( |
| isolate->factory()->NewNumberFromInt(edge->index())); |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| const HeapGraphNode* HeapGraphEdge::GetFromNode() const { |
| const i::HeapEntry* from = ToInternal(this)->from(); |
| return reinterpret_cast<const HeapGraphNode*>(from); |
| } |
| |
| const HeapGraphNode* HeapGraphEdge::GetToNode() const { |
| const i::HeapEntry* to = ToInternal(this)->to(); |
| return reinterpret_cast<const HeapGraphNode*>(to); |
| } |
| |
| static i::HeapEntry* ToInternal(const HeapGraphNode* entry) { |
| return const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(entry)); |
| } |
| |
| HeapGraphNode::Type HeapGraphNode::GetType() const { |
| return static_cast<HeapGraphNode::Type>(ToInternal(this)->type()); |
| } |
| |
| Local<String> HeapGraphNode::GetName() const { |
| i::Isolate* isolate = ToInternal(this)->isolate(); |
| return ToApiHandle<String>( |
| isolate->factory()->InternalizeUtf8String(ToInternal(this)->name())); |
| } |
| |
| SnapshotObjectId HeapGraphNode::GetId() const { return ToInternal(this)->id(); } |
| |
| size_t HeapGraphNode::GetShallowSize() const { |
| return ToInternal(this)->self_size(); |
| } |
| |
| int HeapGraphNode::GetChildrenCount() const { |
| return ToInternal(this)->children_count(); |
| } |
| |
| const HeapGraphEdge* HeapGraphNode::GetChild(int index) const { |
| return reinterpret_cast<const HeapGraphEdge*>(ToInternal(this)->child(index)); |
| } |
| |
| static i::HeapSnapshot* ToInternal(const HeapSnapshot* snapshot) { |
| return const_cast<i::HeapSnapshot*>( |
| reinterpret_cast<const i::HeapSnapshot*>(snapshot)); |
| } |
| |
| void HeapSnapshot::Delete() { |
| i::Isolate* isolate = ToInternal(this)->profiler()->isolate(); |
| if (isolate->heap_profiler()->GetSnapshotsCount() > 1 || |
| isolate->heap_profiler()->IsTakingSnapshot()) { |
| ToInternal(this)->Delete(); |
| } else { |
| // If this is the last snapshot, clean up all accessory data as well. |
| isolate->heap_profiler()->DeleteAllSnapshots(); |
| } |
| } |
| |
| const HeapGraphNode* HeapSnapshot::GetRoot() const { |
| return reinterpret_cast<const HeapGraphNode*>(ToInternal(this)->root()); |
| } |
| |
| const HeapGraphNode* HeapSnapshot::GetNodeById(SnapshotObjectId id) const { |
| return reinterpret_cast<const HeapGraphNode*>( |
| ToInternal(this)->GetEntryById(id)); |
| } |
| |
| int HeapSnapshot::GetNodesCount() const { |
| return static_cast<int>(ToInternal(this)->entries().size()); |
| } |
| |
| const HeapGraphNode* HeapSnapshot::GetNode(int index) const { |
| return reinterpret_cast<const HeapGraphNode*>( |
| &ToInternal(this)->entries().at(index)); |
| } |
| |
| SnapshotObjectId HeapSnapshot::GetMaxSnapshotJSObjectId() const { |
| return ToInternal(this)->max_snapshot_js_object_id(); |
| } |
| |
| void HeapSnapshot::Serialize(OutputStream* stream, |
| HeapSnapshot::SerializationFormat format) const { |
| Utils::ApiCheck(format == kJSON, "v8::HeapSnapshot::Serialize", |
| "Unknown serialization format"); |
| Utils::ApiCheck(stream->GetChunkSize() > 0, "v8::HeapSnapshot::Serialize", |
| "Invalid stream chunk size"); |
| i::HeapSnapshotJSONSerializer serializer(ToInternal(this)); |
| serializer.Serialize(stream); |
| } |
| |
| // static |
| STATIC_CONST_MEMBER_DEFINITION const SnapshotObjectId |
| HeapProfiler::kUnknownObjectId; |
| |
| int HeapProfiler::GetSnapshotCount() { |
| return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotsCount(); |
| } |
| |
| const HeapSnapshot* HeapProfiler::GetHeapSnapshot(int index) { |
| return reinterpret_cast<const HeapSnapshot*>( |
| reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshot(index)); |
| } |
| |
| SnapshotObjectId HeapProfiler::GetObjectId(Local<Value> value) { |
| i::Handle<i::Object> obj = Utils::OpenHandle(*value); |
| return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotObjectId(obj); |
| } |
| |
| SnapshotObjectId HeapProfiler::GetObjectId(NativeObject value) { |
| return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotObjectId(value); |
| } |
| |
| Local<Value> HeapProfiler::FindObjectById(SnapshotObjectId id) { |
| i::Handle<i::Object> obj = |
| reinterpret_cast<i::HeapProfiler*>(this)->FindHeapObjectById(id); |
| if (obj.is_null()) return Local<Value>(); |
| return Utils::ToLocal(obj); |
| } |
| |
| void HeapProfiler::ClearObjectIds() { |
| reinterpret_cast<i::HeapProfiler*>(this)->ClearHeapObjectMap(); |
| } |
| |
| const HeapSnapshot* HeapProfiler::TakeHeapSnapshot( |
| ActivityControl* control, ObjectNameResolver* resolver, |
| bool treat_global_objects_as_roots, bool capture_numeric_value) { |
| return reinterpret_cast<const HeapSnapshot*>( |
| reinterpret_cast<i::HeapProfiler*>(this)->TakeSnapshot( |
| control, resolver, treat_global_objects_as_roots, |
| capture_numeric_value)); |
| } |
| |
| void HeapProfiler::StartTrackingHeapObjects(bool track_allocations) { |
| reinterpret_cast<i::HeapProfiler*>(this)->StartHeapObjectsTracking( |
| track_allocations); |
| } |
| |
| void HeapProfiler::StopTrackingHeapObjects() { |
| reinterpret_cast<i::HeapProfiler*>(this)->StopHeapObjectsTracking(); |
| } |
| |
| SnapshotObjectId HeapProfiler::GetHeapStats(OutputStream* stream, |
| int64_t* timestamp_us) { |
| i::HeapProfiler* heap_profiler = reinterpret_cast<i::HeapProfiler*>(this); |
| return heap_profiler->PushHeapObjectsStats(stream, timestamp_us); |
| } |
| |
| bool HeapProfiler::StartSamplingHeapProfiler(uint64_t sample_interval, |
| int stack_depth, |
| SamplingFlags flags) { |
| return reinterpret_cast<i::HeapProfiler*>(this)->StartSamplingHeapProfiler( |
| sample_interval, stack_depth, flags); |
| } |
| |
| void HeapProfiler::StopSamplingHeapProfiler() { |
| reinterpret_cast<i::HeapProfiler*>(this)->StopSamplingHeapProfiler(); |
| } |
| |
| AllocationProfile* HeapProfiler::GetAllocationProfile() { |
| return reinterpret_cast<i::HeapProfiler*>(this)->GetAllocationProfile(); |
| } |
| |
| void HeapProfiler::DeleteAllHeapSnapshots() { |
| reinterpret_cast<i::HeapProfiler*>(this)->DeleteAllSnapshots(); |
| } |
| |
| void HeapProfiler::AddBuildEmbedderGraphCallback( |
| BuildEmbedderGraphCallback callback, void* data) { |
| reinterpret_cast<i::HeapProfiler*>(this)->AddBuildEmbedderGraphCallback( |
| callback, data); |
| } |
| |
| void HeapProfiler::RemoveBuildEmbedderGraphCallback( |
| BuildEmbedderGraphCallback callback, void* data) { |
| reinterpret_cast<i::HeapProfiler*>(this)->RemoveBuildEmbedderGraphCallback( |
| callback, data); |
| } |
| |
| void HeapProfiler::SetGetDetachednessCallback(GetDetachednessCallback callback, |
| void* data) { |
| reinterpret_cast<i::HeapProfiler*>(this)->SetGetDetachednessCallback(callback, |
| data); |
| } |
| |
| void EmbedderHeapTracer::SetStackStart(void* stack_start) { |
| CHECK(isolate_); |
| reinterpret_cast<i::Isolate*>(isolate_)->global_handles()->SetStackStart( |
| stack_start); |
| } |
| |
| void EmbedderHeapTracer::NotifyEmptyEmbedderStack() { |
| CHECK(isolate_); |
| reinterpret_cast<i::Isolate*>(isolate_) |
| ->heap() |
| ->local_embedder_heap_tracer() |
| ->NotifyEmptyEmbedderStack(); |
| } |
| |
| void EmbedderHeapTracer::FinalizeTracing() { |
| if (isolate_) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(isolate_); |
| if (isolate->heap()->incremental_marking()->IsMarking()) { |
| isolate->heap()->FinalizeIncrementalMarkingAtomically( |
| i::GarbageCollectionReason::kExternalFinalize); |
| } |
| } |
| } |
| |
| void EmbedderHeapTracer::GarbageCollectionForTesting( |
| EmbedderStackState stack_state) { |
| CHECK(isolate_); |
| Utils::ApiCheck(i::FLAG_expose_gc, |
| "v8::EmbedderHeapTracer::GarbageCollectionForTesting", |
| "Must use --expose-gc"); |
| i::Heap* const heap = reinterpret_cast<i::Isolate*>(isolate_)->heap(); |
| heap->SetEmbedderStackStateForNextFinalization(stack_state); |
| heap->PreciseCollectAllGarbage(i::Heap::kNoGCFlags, |
| i::GarbageCollectionReason::kTesting, |
| kGCCallbackFlagForced); |
| } |
| |
| void EmbedderHeapTracer::IncreaseAllocatedSize(size_t bytes) { |
| if (isolate_) { |
| i::LocalEmbedderHeapTracer* const tracer = |
| reinterpret_cast<i::Isolate*>(isolate_) |
| ->heap() |
| ->local_embedder_heap_tracer(); |
| DCHECK_NOT_NULL(tracer); |
| tracer->IncreaseAllocatedSize(bytes); |
| } |
| } |
| |
| void EmbedderHeapTracer::DecreaseAllocatedSize(size_t bytes) { |
| if (isolate_) { |
| i::LocalEmbedderHeapTracer* const tracer = |
| reinterpret_cast<i::Isolate*>(isolate_) |
| ->heap() |
| ->local_embedder_heap_tracer(); |
| DCHECK_NOT_NULL(tracer); |
| tracer->DecreaseAllocatedSize(bytes); |
| } |
| } |
| |
| void EmbedderHeapTracer::RegisterEmbedderReference( |
| const BasicTracedReference<v8::Data>& ref) { |
| if (ref.IsEmpty()) return; |
| |
| i::Heap* const heap = reinterpret_cast<i::Isolate*>(isolate_)->heap(); |
| heap->RegisterExternallyReferencedObject( |
| reinterpret_cast<i::Address*>(ref.val_)); |
| } |
| |
| void EmbedderHeapTracer::IterateTracedGlobalHandles( |
| TracedGlobalHandleVisitor* visitor) { |
| i::Isolate* isolate = reinterpret_cast<i::Isolate*>(isolate_); |
| i::DisallowGarbageCollection no_gc; |
| isolate->global_handles()->IterateTracedNodes(visitor); |
| } |
| |
| bool EmbedderHeapTracer::IsRootForNonTracingGC( |
| const v8::TracedReference<v8::Value>& handle) { |
| return true; |
| } |
| |
| bool EmbedderHeapTracer::IsRootForNonTracingGC( |
| const v8::TracedGlobal<v8::Value>& handle) { |
| return true; |
| } |
| |
| void EmbedderHeapTracer::ResetHandleInNonTracingGC( |
| const v8::TracedReference<v8::Value>& handle) { |
| UNREACHABLE(); |
| } |
| |
| void TracedReferenceBase::CheckValue() const { |
| #ifdef V8_HOST_ARCH_64_BIT |
| if (!val_) return; |
| |
| CHECK_NE(internal::kGlobalHandleZapValue, *reinterpret_cast<uint64_t*>(val_)); |
| #endif // V8_HOST_ARCH_64_BIT |
| } |
| |
| CFunction::CFunction(const void* address, const CFunctionInfo* type_info) |
| : address_(address), type_info_(type_info) { |
| CHECK_NOT_NULL(address_); |
| CHECK_NOT_NULL(type_info_); |
| } |
| |
| CFunctionInfo::CFunctionInfo(const CTypeInfo& return_info, |
| unsigned int arg_count, const CTypeInfo* arg_info) |
| : return_info_(return_info), arg_count_(arg_count), arg_info_(arg_info) { |
| if (arg_count_ > 0) { |
| for (unsigned int i = 0; i < arg_count_ - 1; ++i) { |
| DCHECK(arg_info_[i].GetType() != CTypeInfo::kCallbackOptionsType); |
| } |
| } |
| } |
| |
| const CTypeInfo& CFunctionInfo::ArgumentInfo(unsigned int index) const { |
| DCHECK_LT(index, ArgumentCount()); |
| return arg_info_[index]; |
| } |
| |
| void FastApiTypedArrayBase::ValidateIndex(size_t index) const { |
| DCHECK_LT(index, length_); |
| } |
| |
| RegisterState::RegisterState() |
| : pc(nullptr), sp(nullptr), fp(nullptr), lr(nullptr) {} |
| RegisterState::~RegisterState() = default; |
| |
| RegisterState::RegisterState(const RegisterState& other) { *this = other; } |
| |
| RegisterState& RegisterState::operator=(const RegisterState& other) { |
| if (&other != this) { |
| pc = other.pc; |
| sp = other.sp; |
| fp = other.fp; |
| lr = other.lr; |
| if (other.callee_saved) { |
| // Make a deep copy if {other.callee_saved} is non-null. |
| callee_saved = |
| std::make_unique<CalleeSavedRegisters>(*(other.callee_saved)); |
| } else { |
| // Otherwise, set {callee_saved} to null to match {other}. |
| callee_saved.reset(); |
| } |
| } |
| return *this; |
| } |
| |
| #if !V8_ENABLE_WEBASSEMBLY |
| // If WebAssembly is disabled, we still need to provide an implementation of the |
| // WasmStreaming API. Since {WasmStreaming::Unpack} will always fail, all |
| // methods are unreachable. |
| |
| class WasmStreaming::WasmStreamingImpl {}; |
| |
| WasmStreaming::WasmStreaming(std::unique_ptr<WasmStreamingImpl>) { |
| UNREACHABLE(); |
| } |
| |
| WasmStreaming::~WasmStreaming() = default; |
| |
| void WasmStreaming::OnBytesReceived(const uint8_t* bytes, size_t size) { |
| UNREACHABLE(); |
| } |
| |
| void WasmStreaming::Finish() { UNREACHABLE(); } |
| |
| void WasmStreaming::Abort(MaybeLocal<Value> exception) { UNREACHABLE(); } |
| |
| bool WasmStreaming::SetCompiledModuleBytes(const uint8_t* bytes, size_t size) { |
| UNREACHABLE(); |
| } |
| |
| void WasmStreaming::SetClient(std::shared_ptr<Client> client) { UNREACHABLE(); } |
| |
| void WasmStreaming::SetUrl(const char* url, size_t length) { UNREACHABLE(); } |
| |
| // static |
| std::shared_ptr<WasmStreaming> WasmStreaming::Unpack(Isolate* isolate, |
| Local<Value> value) { |
| FATAL("WebAssembly is disabled"); |
| } |
| #endif // !V8_ENABLE_WEBASSEMBLY |
| |
| namespace internal { |
| |
| const size_t HandleScopeImplementer::kEnteredContextsOffset = |
| offsetof(HandleScopeImplementer, entered_contexts_); |
| const size_t HandleScopeImplementer::kIsMicrotaskContextOffset = |
| offsetof(HandleScopeImplementer, is_microtask_context_); |
| |
| void HandleScopeImplementer::FreeThreadResources() { Free(); } |
| |
| char* HandleScopeImplementer::ArchiveThread(char* storage) { |
| HandleScopeData* current = isolate_->handle_scope_data(); |
| handle_scope_data_ = *current; |
| MemCopy(storage, this, sizeof(*this)); |
| |
| ResetAfterArchive(); |
| current->Initialize(); |
| |
| return storage + ArchiveSpacePerThread(); |
| } |
| |
| int HandleScopeImplementer::ArchiveSpacePerThread() { |
| return sizeof(HandleScopeImplementer); |
| } |
| |
| char* HandleScopeImplementer::RestoreThread(char* storage) { |
| MemCopy(this, storage, sizeof(*this)); |
| *isolate_->handle_scope_data() = handle_scope_data_; |
| return storage + ArchiveSpacePerThread(); |
| } |
| |
| void HandleScopeImplementer::IterateThis(RootVisitor* v) { |
| #ifdef DEBUG |
| bool found_block_before_deferred = false; |
| #endif |
| // Iterate over all handles in the blocks except for the last. |
| for (int i = static_cast<int>(blocks()->size()) - 2; i >= 0; --i) { |
| Address* block = blocks()->at(i); |
| // Cast possibly-unrelated pointers to plain Address before comparing them |
| // to avoid undefined behavior. |
| if (last_handle_before_deferred_block_ != nullptr && |
| (reinterpret_cast<Address>(last_handle_before_deferred_block_) <= |
| reinterpret_cast<Address>(&block[kHandleBlockSize])) && |
| (reinterpret_cast<Address>(last_handle_before_deferred_block_) >= |
| reinterpret_cast<Address>(block))) { |
| v->VisitRootPointers(Root::kHandleScope, nullptr, FullObjectSlot(block), |
| FullObjectSlot(last_handle_before_deferred_block_)); |
| DCHECK(!found_block_before_deferred); |
| #ifdef DEBUG |
| found_block_before_deferred = true; |
| #endif |
| } else { |
| v->VisitRootPointers(Root::kHandleScope, nullptr, FullObjectSlot(block), |
| FullObjectSlot(&block[kHandleBlockSize])); |
| } |
| } |
| |
| DCHECK(last_handle_before_deferred_block_ == nullptr || |
| found_block_before_deferred); |
| |
| // Iterate over live handles in the last block (if any). |
| if (!blocks()->empty()) { |
| v->VisitRootPointers(Root::kHandleScope, nullptr, |
| FullObjectSlot(blocks()->back()), |
| FullObjectSlot(handle_scope_data_.next)); |
| } |
| |
| DetachableVector<Context>* context_lists[2] = {&saved_contexts_, |
| &entered_contexts_}; |
| for (unsigned i = 0; i < arraysize(context_lists); i++) { |
| context_lists[i]->shrink_to_fit(); |
| if (context_lists[i]->empty()) continue; |
| FullObjectSlot start(&context_lists[i]->front()); |
| v->VisitRootPointers(Root::kHandleScope, nullptr, start, |
| start + static_cast<int>(context_lists[i]->size())); |
| } |
| } |
| |
| void HandleScopeImplementer::Iterate(RootVisitor* v) { |
| HandleScopeData* current = isolate_->handle_scope_data(); |
| handle_scope_data_ = *current; |
| IterateThis(v); |
| } |
| |
| char* HandleScopeImplementer::Iterate(RootVisitor* v, char* storage) { |
| HandleScopeImplementer* scope_implementer = |
| reinterpret_cast<HandleScopeImplementer*>(storage); |
| scope_implementer->IterateThis(v); |
| return storage + ArchiveSpacePerThread(); |
| } |
| |
| std::unique_ptr<PersistentHandles> HandleScopeImplementer::DetachPersistent( |
| Address* prev_limit) { |
| std::unique_ptr<PersistentHandles> ph(new PersistentHandles(isolate())); |
| DCHECK_NOT_NULL(prev_limit); |
| |
| while (!blocks_.empty()) { |
| Address* block_start = blocks_.back(); |
| Address* block_limit = &block_start[kHandleBlockSize]; |
| // We should not need to check for SealHandleScope here. Assert this. |
| DCHECK_IMPLIES(block_start <= prev_limit && prev_limit <= block_limit, |
| prev_limit == block_limit); |
| if (prev_limit == block_limit) break; |
| ph->blocks_.push_back(blocks_.back()); |
| #if DEBUG |
| ph->ordered_blocks_.insert(blocks_.back()); |
| #endif |
| blocks_.pop_back(); |
| } |
| |
| // ph->blocks_ now contains the blocks installed on the |
| // HandleScope stack since BeginDeferredScope was called, but in |
| // reverse order. |
| |
| // Switch first and last blocks, such that the last block is the one |
| // that is potentially half full. |
| DCHECK(!blocks_.empty() && !ph->blocks_.empty()); |
| std::swap(ph->blocks_.front(), ph->blocks_.back()); |
| |
| ph->block_next_ = isolate()->handle_scope_data()->next; |
| Address* block_start = ph->blocks_.back(); |
| ph->block_limit_ = block_start + kHandleBlockSize; |
| |
| DCHECK_NOT_NULL(last_handle_before_deferred_block_); |
| last_handle_before_deferred_block_ = nullptr; |
| return ph; |
| } |
| |
| void HandleScopeImplementer::BeginDeferredScope() { |
| DCHECK_NULL(last_handle_before_deferred_block_); |
| last_handle_before_deferred_block_ = isolate()->handle_scope_data()->next; |
| } |
| |
| void InvokeAccessorGetterCallback( |
| v8::Local<v8::Name> property, |
| const v8::PropertyCallbackInfo<v8::Value>& info, |
| v8::AccessorNameGetterCallback getter) { |
| // Leaving JavaScript. |
| Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate()); |
| RCS_SCOPE(isolate, RuntimeCallCounterId::kAccessorGetterCallback); |
| Address getter_address = reinterpret_cast<Address>(getter); |
| ExternalCallbackScope call_scope(isolate, getter_address); |
| getter(property, info); |
| } |
| |
| void InvokeFunctionCallback(const v8::FunctionCallbackInfo<v8::Value>& info, |
| v8::FunctionCallback callback) { |
| Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate()); |
| RCS_SCOPE(isolate, RuntimeCallCounterId::kFunctionCallback); |
| Address callback_address = reinterpret_cast<Address>(callback); |
| ExternalCallbackScope call_scope(isolate, callback_address); |
| callback(info); |
| } |
| |
| void InvokeFinalizationRegistryCleanupFromTask( |
| Handle<Context> context, |
| Handle<JSFinalizationRegistry> finalization_registry, |
| Handle<Object> callback) { |
| Isolate* isolate = finalization_registry->native_context().GetIsolate(); |
| RCS_SCOPE(isolate, |
| RuntimeCallCounterId::kFinalizationRegistryCleanupFromTask); |
| // Do not use ENTER_V8 because this is always called from a running |
| // FinalizationRegistryCleanupTask within V8 and we should not log it as an |
| // API call. This method is implemented here to avoid duplication of the |
| // exception handling and microtask running logic in CallDepthScope. |
| if (IsExecutionTerminatingCheck(isolate)) return; |
| Local<v8::Context> api_context = Utils::ToLocal(context); |
| CallDepthScope<true> call_depth_scope(isolate, api_context); |
| VMState<OTHER> state(isolate); |
| Handle<Object> argv[] = {callback}; |
| if (Execution::CallBuiltin(isolate, |
| isolate->finalization_registry_cleanup_some(), |
| finalization_registry, arraysize(argv), argv) |
| .is_null()) { |
| call_depth_scope.Escape(); |
| } |
| } |
| |
| template <> |
| EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) |
| int32_t ConvertDouble(double d) { |
| return internal::DoubleToInt32(d); |
| } |
| |
| template <> |
| EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) |
| uint32_t ConvertDouble(double d) { |
| return internal::DoubleToUint32(d); |
| } |
| |
| template <> |
| EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) |
| float ConvertDouble(double d) { |
| return internal::DoubleToFloat32(d); |
| } |
| |
| template <> |
| EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) |
| double ConvertDouble(double d) { |
| return d; |
| } |
| |
| template <> |
| EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) |
| int64_t ConvertDouble(double d) { |
| return internal::DoubleToWebIDLInt64(d); |
| } |
| |
| template <> |
| EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) |
| uint64_t ConvertDouble(double d) { |
| return internal::DoubleToWebIDLUint64(d); |
| } |
| |
| template <> |
| EXPORT_TEMPLATE_DEFINE(V8_EXPORT_PRIVATE) |
| bool ConvertDouble(double d) { |
| // Implements https://tc39.es/ecma262/#sec-toboolean. |
| return !std::isnan(d) && d != 0; |
| } |
| |
| // Undefine macros for jumbo build. |
| #undef SET_FIELD_WRAPPED |
| #undef NEW_STRING |
| #undef CALLBACK_SETTER |
| |
| } // namespace internal |
| |
| template <> |
| bool V8_EXPORT V8_WARN_UNUSED_RESULT TryToCopyAndConvertArrayToCppBuffer< |
| internal::CTypeInfoBuilder<int32_t>::Build().GetId(), int32_t>( |
| Local<Array> src, int32_t* dst, uint32_t max_length) { |
| return CopyAndConvertArrayToCppBuffer< |
| CTypeInfo(CTypeInfo::Type::kInt32, CTypeInfo::SequenceType::kIsSequence) |
| .GetId(), |
| int32_t>(src, dst, max_length); |
| } |
| |
| template <> |
| bool V8_EXPORT V8_WARN_UNUSED_RESULT TryToCopyAndConvertArrayToCppBuffer< |
| internal::CTypeInfoBuilder<uint32_t>::Build().GetId(), uint32_t>( |
| Local<Array> src, uint32_t* dst, uint32_t max_length) { |
| return CopyAndConvertArrayToCppBuffer< |
| CTypeInfo(CTypeInfo::Type::kUint32, CTypeInfo::SequenceType::kIsSequence) |
| .GetId(), |
| uint32_t>(src, dst, max_length); |
| } |
| |
| template <> |
| bool V8_EXPORT V8_WARN_UNUSED_RESULT TryToCopyAndConvertArrayToCppBuffer< |
| internal::CTypeInfoBuilder<float>::Build().GetId(), float>( |
| Local<Array> src, float* dst, uint32_t max_length) { |
| return CopyAndConvertArrayToCppBuffer< |
| CTypeInfo(CTypeInfo::Type::kFloat32, CTypeInfo::SequenceType::kIsSequence) |
| .GetId(), |
| float>(src, dst, max_length); |
| } |
| |
| template <> |
| bool V8_EXPORT V8_WARN_UNUSED_RESULT TryToCopyAndConvertArrayToCppBuffer< |
| internal::CTypeInfoBuilder<double>::Build().GetId(), double>( |
| Local<Array> src, double* dst, uint32_t max_length) { |
| return CopyAndConvertArrayToCppBuffer< |
| CTypeInfo(CTypeInfo::Type::kFloat64, CTypeInfo::SequenceType::kIsSequence) |
| .GetId(), |
| double>(src, dst, max_length); |
| } |
| |
| } // namespace v8 |
| |
| #undef TRACE_BS |
| #include "src/api/api-macros-undef.h" |