Google Git
Sign in
chromium / v8 / v8.git / 42e6b2f51a5fe7171d60fa48151c8c48cfa6904b / . / src / diagnostics / objects-printer.cc
blob: 97422f06e0593205d1ae4e018931fa718536b508 [file] [log] [blame]
// 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 <iomanip>
#include <memory>
#include <optional>
#include "src/api/api-arguments.h"
#include "src/common/assert-scope.h"
#include "src/common/globals.h"
#include "src/diagnostics/disasm.h"
#include "src/diagnostics/disassembler.h"
#include "src/execution/frames-inl.h"
#include "src/execution/isolate-utils-inl.h"
#include "src/heap/heap-inl.h" // For InOldSpace.
#include "src/heap/heap-layout-inl.h"
#include "src/heap/heap-write-barrier-inl.h" // For GetIsolateFromWritableObj.
#include "src/heap/marking-inl.h"
#include "src/ic/handler-configuration-inl.h"
#include "src/init/bootstrapper.h"
#include "src/interpreter/bytecodes.h"
#include "src/objects/all-objects-inl.h"
#include "src/objects/code-kind.h"
#include "src/objects/instance-type.h"
#include "src/objects/js-function-inl.h"
#include "src/objects/js-objects.h"
#include "src/regexp/regexp.h"
#include "src/sandbox/isolate.h"
#include "src/sandbox/js-dispatch-table.h"
#include "src/snapshot/embedded/embedded-data.h"
#include "src/strings/string-stream.h"
#include "src/utils/ostreams.h"
#include "third_party/fp16/src/include/fp16.h"
#include "v8-internal.h"
#if V8_ENABLE_WEBASSEMBLY
#include "src/debug/debug-wasm-objects-inl.h"
#include "src/wasm/wasm-code-manager.h"
#include "src/wasm/wasm-code-pointer-table-inl.h"
#include "src/wasm/wasm-engine.h"
#include "src/wasm/wasm-objects-inl.h"
#endif // V8_ENABLE_WEBASSEMBLY
namespace v8::internal {
namespace {
constexpr char kUnavailableString[] = "unavailable";
} // namespace
#ifdef OBJECT_PRINT
void Print(Tagged<Object> obj) {
// Output into debugger's command window if a debugger is attached.
DbgStdoutStream dbg_os;
Print(obj, dbg_os);
dbg_os << std::flush;
StdoutStream os;
Print(obj, os);
os << std::flush;
}
void Print(Tagged<Object> obj, std::ostream& os) {
if (IsSmi(obj)) {
os << "Smi: " << std::hex << "0x" << Smi::ToInt(obj);
os << std::dec << " (" << Smi::ToInt(obj) << ")\n";
} else {
Cast<HeapObject>(obj)->HeapObjectPrint(os);
}
}
namespace {
#define AS_PTR(x) reinterpret_cast<void*>(x)
#define AS_OBJ(x) Brief(Tagged<Object>(x))
void PrintFunctionCallbackInfo(Address* implicit_args, Address* js_args,
Address length, std::ostream& os) {
using FCA = FunctionCallbackArguments;
static_assert(FCA::kArgsLength == 6);
os << "FunctionCallbackInfo: " //
<< "\n - isolate: " << AS_PTR(implicit_args[FCA::kIsolateIndex])
<< "\n - return_value: " << AS_OBJ(implicit_args[FCA::kReturnValueIndex])
<< "\n - target: " << AS_OBJ(implicit_args[FCA::kTargetIndex])
<< "\n - new_target: " << AS_OBJ(implicit_args[FCA::kNewTargetIndex])
<< "\n - holder: " << AS_OBJ(implicit_args[FCA::kHolderIndex])
<< "\n - argc: " << length //
<< "\n - receiver: " << AS_OBJ(js_args[0]);
constexpr int kMaxArgs = 4;
for (int i = 0; i < std::min(static_cast<int>(length), kMaxArgs); i++) {
os << "\n - arg[" << i << "]: " << AS_OBJ(js_args[i]);
}
os << "\n";
}
void PrintPropertyCallbackInfo(Address* args, std::ostream& os) {
using PCA = internal::PropertyCallbackArguments;
static_assert(PCA::kArgsLength == 8);
os << "PropertyCallbackInfo: " //
<< "\n - isolate: " << AS_PTR(args[PCA::kIsolateIndex])
<< "\n - return_value: " << AS_OBJ(args[PCA::kReturnValueIndex])
<< "\n - should_throw: " << AS_OBJ(args[PCA::kShouldThrowOnErrorIndex])
<< "\n - holder: " << AS_OBJ(args[PCA::kHolderIndex])
<< "\n - holderV2: " << AS_OBJ(args[PCA::kHolderV2Index])
<< "\n - data: " << AS_OBJ(args[PCA::kDataIndex]) //
<< "\n - property_key: " << AS_OBJ(args[PCA::kPropertyKeyIndex])
<< "\n - receiver: " << AS_OBJ(args[PCA::kThisIndex]);
// In case it's a setter call there will be additional |value| parameter,
// print it as a raw pointer to avoid crashing.
os << "\n - value?: " << AS_PTR(args[PCA::kArgsLength]);
os << "\n";
}
#undef AS_PTR
#undef AS_OBJ
} // namespace
void PrintFunctionCallbackInfo(void* function_callback_info) {
using FCI = v8::FunctionCallbackInfo<v8::Value>;
FCI& info = *reinterpret_cast<FCI*>(function_callback_info);
// |values| points to the first argument after the receiver.
Address* js_args = info.values_ - 1;
// Output into debugger's command window if a debugger is attached.
DbgStdoutStream dbg_os;
PrintFunctionCallbackInfo(info.implicit_args_, js_args, info.length_, dbg_os);
dbg_os << std::flush;
StdoutStream os;
PrintFunctionCallbackInfo(info.implicit_args_, js_args, info.length_, os);
os << std::flush;
}
void PrintPropertyCallbackInfo(void* property_callback_info) {
using PCI = v8::PropertyCallbackInfo<v8::Value>;
PCI& info = *reinterpret_cast<PCI*>(property_callback_info);
// Output into debugger's command window if a debugger is attached.
DbgStdoutStream dbg_os;
PrintPropertyCallbackInfo(info.args_, dbg_os);
dbg_os << std::flush;
StdoutStream os;
PrintPropertyCallbackInfo(info.args_, os);
os << std::flush;
}
namespace {
void PrintHeapObjectHeaderWithoutMap(Tagged<HeapObject> object,
std::ostream& os, const char* id) {
PtrComprCageBase cage_base = GetPtrComprCageBase();
os << reinterpret_cast<void*>(object.ptr()) << ": [";
if (id != nullptr) {
os << id;
} else {
os << object->map(cage_base)->instance_type();
}
os << "]";
if (ReadOnlyHeap::Contains(object)) {
os << " in ReadOnlySpace";
}
}
template <typename T>
void PrintDictionaryContents(std::ostream& os, Tagged<T> dict) {
DisallowGarbageCollection no_gc;
ReadOnlyRoots roots = GetReadOnlyRoots();
if (dict->Capacity() == 0) {
return;
}
#ifdef V8_ENABLE_SWISS_NAME_DICTIONARY
Isolate* isolate = GetIsolateFromWritableObject(dict);
// IterateEntries for SwissNameDictionary needs to create a handle.
HandleScope scope(isolate);
#endif
for (InternalIndex i : dict->IterateEntries()) {
Tagged<Object> k;
if (!dict->ToKey(roots, i, &k)) continue;
os << "\n ";
if (IsString(k)) {
Cast<String>(k)->PrintUC16(os);
} else {
os << Brief(k);
}
os << ": " << Brief(dict->ValueAt(i)) << " ";
dict->DetailsAt(i).PrintAsSlowTo(os, !T::kIsOrderedDictionaryType);
}
}
} // namespace
void HeapObjectLayout::PrintHeader(std::ostream& os, const char* id) {
Tagged<HeapObject>(this)->PrintHeader(os, id);
}
void HeapObject::PrintHeader(std::ostream& os, const char* id) {
PrintHeapObjectHeaderWithoutMap(*this, os, id);
PtrComprCageBase cage_base = GetPtrComprCageBase();
if (!SafeEquals(GetReadOnlyRoots().meta_map())) {
os << "\n - map: " << Brief(map(cage_base));
}
}
void HeapObject::HeapObjectPrint(std::ostream& os) {
PtrComprCageBase cage_base = GetPtrComprCageBase();
InstanceType instance_type = map(cage_base)->instance_type();
if (instance_type < FIRST_NONSTRING_TYPE) {
Cast<String>(*this)->StringPrint(os);
os << "\n";
return;
}
// Skip invalid trusted objects. Technically it'd be fine to still handle
// them below since we only print the objects, but such an object will
// quickly lead to out-of-sandbox segfaults and so fuzzers will complain.
if (InstanceTypeChecker::IsTrustedObject(instance_type) &&
!OutsideSandboxOrInReadonlySpace(*this)) {
os << "<Invalid TrustedObject (outside trusted space)>\n";
return;
}
switch (instance_type) {
case AWAIT_CONTEXT_TYPE:
case BLOCK_CONTEXT_TYPE:
case CATCH_CONTEXT_TYPE:
case DEBUG_EVALUATE_CONTEXT_TYPE:
case EVAL_CONTEXT_TYPE:
case FUNCTION_CONTEXT_TYPE:
case MODULE_CONTEXT_TYPE:
case SCRIPT_CONTEXT_TYPE:
case WITH_CONTEXT_TYPE:
Cast<Context>(*this)->ContextPrint(os);
break;
case NATIVE_CONTEXT_TYPE:
Cast<NativeContext>(*this)->NativeContextPrint(os);
break;
case HASH_TABLE_TYPE:
Cast<ObjectHashTable>(*this)->ObjectHashTablePrint(os);
break;
case NAME_TO_INDEX_HASH_TABLE_TYPE:
Cast<NameToIndexHashTable>(*this)->NameToIndexHashTablePrint(os);
break;
case REGISTERED_SYMBOL_TABLE_TYPE:
Cast<RegisteredSymbolTable>(*this)->RegisteredSymbolTablePrint(os);
break;
case ORDERED_HASH_MAP_TYPE:
Cast<OrderedHashMap>(*this)->OrderedHashMapPrint(os);
break;
case ORDERED_HASH_SET_TYPE:
Cast<OrderedHashSet>(*this)->OrderedHashSetPrint(os);
break;
case ORDERED_NAME_DICTIONARY_TYPE:
Cast<OrderedNameDictionary>(*this)->OrderedNameDictionaryPrint(os);
break;
case NAME_DICTIONARY_TYPE:
Cast<NameDictionary>(*this)->NameDictionaryPrint(os);
break;
case GLOBAL_DICTIONARY_TYPE:
Cast<GlobalDictionary>(*this)->GlobalDictionaryPrint(os);
break;
case SIMPLE_NUMBER_DICTIONARY_TYPE:
Cast<FixedArray>(*this)->FixedArrayPrint(os);
break;
case NUMBER_DICTIONARY_TYPE:
Cast<NumberDictionary>(*this)->NumberDictionaryPrint(os);
break;
case EPHEMERON_HASH_TABLE_TYPE:
Cast<EphemeronHashTable>(*this)->EphemeronHashTablePrint(os);
break;
case TRANSITION_ARRAY_TYPE:
Cast<TransitionArray>(*this)->TransitionArrayPrint(os);
break;
case FILLER_TYPE:
os << "filler";
break;
case JS_API_OBJECT_TYPE:
case JS_ARRAY_ITERATOR_PROTOTYPE_TYPE:
case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
case JS_ERROR_TYPE:
case JS_ITERATOR_PROTOTYPE_TYPE:
case JS_MAP_ITERATOR_PROTOTYPE_TYPE:
case JS_OBJECT_PROTOTYPE_TYPE:
case JS_PROMISE_PROTOTYPE_TYPE:
case JS_REG_EXP_PROTOTYPE_TYPE:
case JS_SET_ITERATOR_PROTOTYPE_TYPE:
case JS_SET_PROTOTYPE_TYPE:
case JS_SPECIAL_API_OBJECT_TYPE:
case JS_STRING_ITERATOR_PROTOTYPE_TYPE:
case JS_TYPED_ARRAY_PROTOTYPE_TYPE:
Cast<JSObject>(*this)->JSObjectPrint(os);
break;
#if V8_ENABLE_WEBASSEMBLY
case WASM_TRUSTED_INSTANCE_DATA_TYPE:
Cast<WasmTrustedInstanceData>(*this)->WasmTrustedInstanceDataPrint(os);
break;
case WASM_DISPATCH_TABLE_TYPE:
Cast<WasmDispatchTable>(*this)->WasmDispatchTablePrint(os);
break;
case WASM_VALUE_OBJECT_TYPE:
Cast<WasmValueObject>(*this)->WasmValueObjectPrint(os);
break;
case WASM_EXCEPTION_PACKAGE_TYPE:
Cast<WasmExceptionPackage>(*this)->WasmExceptionPackagePrint(os);
break;
#endif // V8_ENABLE_WEBASSEMBLY
case INSTRUCTION_STREAM_TYPE:
Cast<InstructionStream>(*this)->InstructionStreamPrint(os);
break;
case CODE_TYPE:
Cast<Code>(*this)->CodePrint(os);
break;
case CODE_WRAPPER_TYPE:
Cast<CodeWrapper>(*this)->CodeWrapperPrint(os);
break;
case JS_SET_KEY_VALUE_ITERATOR_TYPE:
case JS_SET_VALUE_ITERATOR_TYPE:
Cast<JSSetIterator>(*this)->JSSetIteratorPrint(os);
break;
case JS_MAP_KEY_ITERATOR_TYPE:
case JS_MAP_KEY_VALUE_ITERATOR_TYPE:
case JS_MAP_VALUE_ITERATOR_TYPE:
Cast<JSMapIterator>(*this)->JSMapIteratorPrint(os);
break;
#define MAKE_TORQUE_CASE(Name, TYPE) \
case TYPE: \
Cast<Name>(*this)->Name##Print(os); \
break;
// Every class that has its fields defined in a .tq file and corresponds
// to exactly one InstanceType value is included in the following list.
TORQUE_INSTANCE_CHECKERS_SINGLE_FULLY_DEFINED(MAKE_TORQUE_CASE)
TORQUE_INSTANCE_CHECKERS_MULTIPLE_FULLY_DEFINED(MAKE_TORQUE_CASE)
#undef MAKE_TORQUE_CASE
case ALLOCATION_SITE_TYPE:
Cast<AllocationSite>(*this)->AllocationSitePrint(os);
break;
case LOAD_HANDLER_TYPE:
Cast<LoadHandler>(*this)->LoadHandlerPrint(os);
break;
case STORE_HANDLER_TYPE:
Cast<StoreHandler>(*this)->StoreHandlerPrint(os);
break;
case FEEDBACK_METADATA_TYPE:
Cast<FeedbackMetadata>(*this)->FeedbackMetadataPrint(os);
break;
case BIG_INT_BASE_TYPE:
Cast<BigIntBase>(*this)->BigIntBasePrint(os);
break;
case JS_CLASS_CONSTRUCTOR_TYPE:
case JS_PROMISE_CONSTRUCTOR_TYPE:
case JS_REG_EXP_CONSTRUCTOR_TYPE:
case JS_ARRAY_CONSTRUCTOR_TYPE:
#define TYPED_ARRAY_CONSTRUCTORS_SWITCH(Type, type, TYPE, Ctype) \
case TYPE##_TYPED_ARRAY_CONSTRUCTOR_TYPE:
TYPED_ARRAYS(TYPED_ARRAY_CONSTRUCTORS_SWITCH)
#undef TYPED_ARRAY_CONSTRUCTORS_SWITCH
Cast<JSFunction>(*this)->JSFunctionPrint(os);
break;
case INTERNALIZED_TWO_BYTE_STRING_TYPE:
case EXTERNAL_INTERNALIZED_TWO_BYTE_STRING_TYPE:
case INTERNALIZED_ONE_BYTE_STRING_TYPE:
case EXTERNAL_INTERNALIZED_ONE_BYTE_STRING_TYPE:
case UNCACHED_EXTERNAL_INTERNALIZED_TWO_BYTE_STRING_TYPE:
case UNCACHED_EXTERNAL_INTERNALIZED_ONE_BYTE_STRING_TYPE:
case SEQ_TWO_BYTE_STRING_TYPE:
case CONS_TWO_BYTE_STRING_TYPE:
case EXTERNAL_TWO_BYTE_STRING_TYPE:
case SLICED_TWO_BYTE_STRING_TYPE:
case THIN_TWO_BYTE_STRING_TYPE:
case SEQ_ONE_BYTE_STRING_TYPE:
case CONS_ONE_BYTE_STRING_TYPE:
case EXTERNAL_ONE_BYTE_STRING_TYPE:
case SLICED_ONE_BYTE_STRING_TYPE:
case THIN_ONE_BYTE_STRING_TYPE:
case UNCACHED_EXTERNAL_TWO_BYTE_STRING_TYPE:
case UNCACHED_EXTERNAL_ONE_BYTE_STRING_TYPE:
case SHARED_SEQ_TWO_BYTE_STRING_TYPE:
case SHARED_SEQ_ONE_BYTE_STRING_TYPE:
case SHARED_EXTERNAL_TWO_BYTE_STRING_TYPE:
case SHARED_EXTERNAL_ONE_BYTE_STRING_TYPE:
case SHARED_UNCACHED_EXTERNAL_TWO_BYTE_STRING_TYPE:
case SHARED_UNCACHED_EXTERNAL_ONE_BYTE_STRING_TYPE:
case JS_LAST_DUMMY_API_OBJECT_TYPE:
// TODO(all): Handle these types too.
os << "UNKNOWN TYPE " << map()->instance_type();
UNREACHABLE();
}
}
template <typename T>
void PrintByteArrayElements(std::ostream& os, const T* array) {
int length = array->length();
int i = 0;
while (i < length) {
os << " 0x" << std::setfill('0') << std::setw(4) << std::hex << i << ":";
int line_end = std::min(i + 16, length);
for (; i < line_end; ++i) {
os << " " << std::setfill('0') << std::setw(2) << std::hex
<< static_cast<int>(array->get(i));
}
os << "\n";
}
}
void ByteArray::ByteArrayPrint(std::ostream& os) {
PrintHeader(os, "ByteArray");
os << "\n - length: " << length()
<< "\n - begin: " << static_cast<void*>(begin()) << "\n";
PrintByteArrayElements(os, this);
}
void TrustedByteArray::TrustedByteArrayPrint(std::ostream& os) {
PrintHeader(os, "TrustedByteArray");
os << "\n - length: " << length()
<< "\n - begin: " << static_cast<void*>(begin()) << "\n";
PrintByteArrayElements(os, this);
}
void BytecodeArray::BytecodeArrayPrint(std::ostream& os) {
PrintHeader(os, "BytecodeArray");
os << "\n";
Disassemble(os);
}
void BytecodeWrapper::BytecodeWrapperPrint(std::ostream& os) {
PrintHeader(os, "BytecodeWrapper");
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
os << "\n bytecode: " << Brief(bytecode(isolate));
}
void FreeSpace::FreeSpacePrint(std::ostream& os) {
os << "free space, size " << Size() << "\n";
}
bool JSObject::PrintProperties(std::ostream& os) {
if (HasFastProperties()) {
Tagged<DescriptorArray> descs = map()->instance_descriptors(GetIsolate());
int nof_inobject_properties = map()->GetInObjectProperties();
for (InternalIndex i : map()->IterateOwnDescriptors()) {
os << "\n ";
descs->GetKey(i)->NamePrint(os);
os << ": ";
PropertyDetails details = descs->GetDetails(i);
switch (details.location()) {
case PropertyLocation::kField: {
FieldIndex field_index = FieldIndex::ForDetails(map(), details);
os << Brief(RawFastPropertyAt(field_index));
break;
}
case PropertyLocation::kDescriptor:
os << Brief(descs->GetStrongValue(i));
break;
}
os << " ";
details.PrintAsFastTo(os, PropertyDetails::kForProperties);
if (details.location() == PropertyLocation::kField) {
os << " @ ";
FieldType::PrintTo(descs->GetFieldType(i), os);
int field_index = details.field_index();
if (field_index < nof_inobject_properties) {
os << ", location: in-object";
} else {
field_index -= nof_inobject_properties;
os << ", location: properties[" << field_index << "]";
}
} else {
os << ", location: descriptor";
}
}
return map()->NumberOfOwnDescriptors() > 0;
} else if (IsJSGlobalObject(*this)) {
PrintDictionaryContents(
os, Cast<JSGlobalObject>(*this)->global_dictionary(kAcquireLoad));
} else if constexpr (V8_ENABLE_SWISS_NAME_DICTIONARY_BOOL) {
PrintDictionaryContents(os, property_dictionary_swiss());
} else {
PrintDictionaryContents(os, property_dictionary());
}
return true;
}
namespace {
template <class T>
bool IsTheHoleAt(Tagged<T> array, int index) {
return false;
}
template <>
bool IsTheHoleAt(Tagged<FixedDoubleArray> array, int index) {
return array->is_the_hole(index);
}
#ifdef V8_ENABLE_EXPERIMENTAL_UNDEFINED_DOUBLE
template <class T>
bool IsUndefinedAt(Tagged<T> array, int index) {
return false;
}
template <>
bool IsUndefinedAt(Tagged<FixedDoubleArray> array, int index) {
return array->is_undefined(index);
}
#endif // V8_ENABLE_EXPERIMENTAL_UNDEFINED_DOUBLE
template <class T>
double GetScalarElement(Tagged<T> array, int index) {
if (IsTheHoleAt(array, index)) {
return std::numeric_limits<double>::quiet_NaN();
}
return array->get_scalar(index);
}
template <class T>
void DoPrintElements(std::ostream& os, Tagged<Object> object, int length) {
const bool print_the_hole = std::is_same_v<T, FixedDoubleArray>;
Tagged<T> array = Cast<T>(object);
if (length == 0) return;
int previous_index = 0;
uint64_t previous_representation = array->get_representation(0);
uint64_t representation = 0;
int i;
for (i = 1; i <= length; i++) {
if (i < length) {
representation = array->get_representation(i);
if (previous_representation == representation) continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": ";
if (print_the_hole && IsTheHoleAt(array, i - 1)) {
os << "<the_hole>";
#ifdef V8_ENABLE_EXPERIMENTAL_UNDEFINED_DOUBLE
} else if (IsUndefinedAt(array, i - 1)) {
os << "undefined";
#endif // V8_ENABLE_EXPERIMENTAL_UNDEFINED_DOUBLE
} else {
os << GetScalarElement(array, i - 1);
}
previous_index = i;
previous_representation = representation;
}
}
struct Fp16Printer {
uint16_t val;
explicit Fp16Printer(float f) : val(fp16_ieee_from_fp32_value(f)) {}
operator float() const { return fp16_ieee_to_fp32_value(val); }
};
template <typename ElementType>
void PrintTypedArrayElements(std::ostream& os, const ElementType* data_ptr,
size_t length, bool is_on_heap) {
if (length == 0) return;
size_t previous_index = 0;
if (i::v8_flags.mock_arraybuffer_allocator && !is_on_heap) {
// Don't try to print data that's not actually allocated.
os << "\n 0-" << length << ": <mocked array buffer bytes>";
return;
}
ElementType previous_value = data_ptr[0];
ElementType value{0};
for (size_t i = 1; i <= length; i++) {
if (i < length) value = data_ptr[i];
if (i != length && previous_value == value) {
continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": " << +previous_value;
previous_index = i;
previous_value = value;
}
}
template <typename T>
void PrintFixedArrayElements(std::ostream& os, Tagged<T> array, int capacity,
Tagged<Object> (*get)(Tagged<T>, int)) {
// Print in array notation for non-sparse arrays.
if (capacity == 0) return;
Tagged<Object> previous_value = get(array, 0);
Tagged<Object> value;
int previous_index = 0;
int i;
for (i = 1; i <= capacity; i++) {
if (i < capacity) value = get(array, i);
if (previous_value == value && i != capacity) {
continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": " << Brief(previous_value);
previous_index = i;
previous_value = value;
}
}
template <typename T>
void PrintFixedArrayElements(std::ostream& os, Tagged<T> array) {
PrintFixedArrayElements<T>(
os, array, array->length(),
[](Tagged<T> xs, int i) { return Cast<Object>(xs->get(i)); });
}
void PrintDictionaryElements(std::ostream& os,
Tagged<FixedArrayBase> elements) {
// Print some internal fields
Tagged<NumberDictionary> dict = Cast<NumberDictionary>(elements);
if (dict->requires_slow_elements()) {
os << "\n - requires_slow_elements";
} else {
os << "\n - max_number_key: " << dict->max_number_key();
}
PrintDictionaryContents(os, dict);
}
void PrintSloppyArgumentElements(std::ostream& os, ElementsKind kind,
Tagged<SloppyArgumentsElements> elements) {
Tagged<FixedArray> arguments_store = elements->arguments();
os << "\n 0: context: " << Brief(elements->context())
<< "\n 1: arguments_store: " << Brief(arguments_store)
<< "\n parameter to context slot map:";
for (int i = 0; i < elements->length(); i++) {
Tagged<Object> mapped_entry = elements->mapped_entries(i, kRelaxedLoad);
os << "\n " << i << ": param(" << i << "): " << Brief(mapped_entry);
if (IsTheHole(mapped_entry)) {
os << " in the arguments_store[" << i << "]";
} else {
os << " in the context";
}
}
if (arguments_store->length() == 0) return;
os << "\n }"
<< "\n - arguments_store: " << Brief(arguments_store) << " "
<< ElementsKindToString(arguments_store->map()->elements_kind()) << " {";
if (kind == FAST_SLOPPY_ARGUMENTS_ELEMENTS) {
PrintFixedArrayElements(os, arguments_store);
} else {
DCHECK_EQ(kind, SLOW_SLOPPY_ARGUMENTS_ELEMENTS);
PrintDictionaryElements(os, arguments_store);
}
}
void PrintEmbedderData(IsolateForSandbox isolate, std::ostream& os,
EmbedderDataSlot slot) {
DisallowGarbageCollection no_gc;
Tagged<Object> value = slot.load_tagged();
os << Brief(value);
void* raw_pointer;
if (slot.ToAlignedPointer(isolate, &raw_pointer)) {
os << ", aligned pointer: " << raw_pointer;
}
}
} // namespace
void JSObject::PrintElements(std::ostream& os) {
// Don't call GetElementsKind, its validation code can cause the printer to
// fail when debugging.
os << " - elements: " << Brief(elements()) << " {";
switch (map()->elements_kind()) {
case HOLEY_SMI_ELEMENTS:
case PACKED_SMI_ELEMENTS:
case HOLEY_ELEMENTS:
case HOLEY_FROZEN_ELEMENTS:
case HOLEY_SEALED_ELEMENTS:
case HOLEY_NONEXTENSIBLE_ELEMENTS:
case PACKED_ELEMENTS:
case PACKED_FROZEN_ELEMENTS:
case PACKED_SEALED_ELEMENTS:
case PACKED_NONEXTENSIBLE_ELEMENTS:
case FAST_STRING_WRAPPER_ELEMENTS:
case SHARED_ARRAY_ELEMENTS: {
PrintFixedArrayElements(os, Cast<FixedArray>(elements()));
break;
}
case HOLEY_DOUBLE_ELEMENTS:
case PACKED_DOUBLE_ELEMENTS: {
DoPrintElements<FixedDoubleArray>(os, elements(), elements()->length());
break;
}
#define PRINT_ELEMENTS(Type, type, TYPE, elementType) \
case TYPE##_ELEMENTS: { \
size_t length = Cast<JSTypedArray>(*this)->GetLength(); \
bool is_on_heap = Cast<JSTypedArray>(*this)->is_on_heap(); \
const elementType* data_ptr = \
static_cast<const elementType*>(Cast<JSTypedArray>(*this)->DataPtr()); \
PrintTypedArrayElements<elementType>(os, data_ptr, length, is_on_heap); \
break; \
}
TYPED_ARRAYS(PRINT_ELEMENTS)
RAB_GSAB_TYPED_ARRAYS(PRINT_ELEMENTS)
#undef PRINT_ELEMENTS
case DICTIONARY_ELEMENTS:
case SLOW_STRING_WRAPPER_ELEMENTS:
PrintDictionaryElements(os, elements());
break;
case FAST_SLOPPY_ARGUMENTS_ELEMENTS:
case SLOW_SLOPPY_ARGUMENTS_ELEMENTS:
PrintSloppyArgumentElements(os, map()->elements_kind(),
Cast<SloppyArgumentsElements>(elements()));
break;
case WASM_ARRAY_ELEMENTS:
// WasmArrayPrint() should be called instead.
UNREACHABLE();
case NO_ELEMENTS:
break;
}
os << "\n }\n";
}
namespace {
void JSObjectPrintHeader(std::ostream& os, Tagged<JSObject> obj,
const char* id) {
Isolate* isolate = obj->GetIsolate();
obj->PrintHeader(os, id);
// Don't call GetElementsKind, its validation code can cause the printer to
// fail when debugging.
os << " [";
if (obj->HasFastProperties()) {
os << "FastProperties";
} else {
os << "DictionaryProperties";
}
PrototypeIterator iter(isolate, obj);
os << "]\n - prototype: " << Brief(iter.GetCurrent());
os << "\n - elements: " << Brief(obj->elements()) << " ["
<< ElementsKindToString(obj->map()->elements_kind());
if (obj->elements()->IsCowArray()) os << " (COW)";
os << "]";
Tagged<Object> hash = Object::GetHash(obj);
if (IsSmi(hash)) {
os << "\n - hash: " << Brief(hash);
}
if (obj->GetEmbedderFieldCount() > 0) {
os << "\n - embedder fields: " << obj->GetEmbedderFieldCount();
}
}
void JSAPIObjectWithEmbedderSlotsPrintHeader(std::ostream& os,
Tagged<JSObject> obj,
const char* id = nullptr) {
JSObjectPrintHeader(os, obj, id);
os << "\n - cpp_heap_wrappable: "
<< obj->ReadField<uint32_t>(
JSAPIObjectWithEmbedderSlots::kCppHeapWrappableOffset);
}
void JSObjectPrintBody(std::ostream& os, Tagged<JSObject> obj,
bool print_elements = true) {
os << "\n - properties: ";
Tagged<Object> properties_or_hash = obj->raw_properties_or_hash(kRelaxedLoad);
if (!IsSmi(properties_or_hash)) {
os << Brief(properties_or_hash);
}
os << "\n - All own properties (excluding elements): {";
if (obj->PrintProperties(os)) os << "\n ";
os << "}\n";
if (print_elements) {
size_t length = IsJSTypedArray(obj) ? Cast<JSTypedArray>(obj)->GetLength()
: obj->elements()->length();
if (length > 0) obj->PrintElements(os);
}
int embedder_fields = obj->GetEmbedderFieldCount();
if (embedder_fields > 0) {
IsolateForSandbox isolate = GetIsolateForSandbox(obj);
os << " - embedder fields = {";
for (int i = 0; i < embedder_fields; i++) {
os << "\n ";
PrintEmbedderData(isolate, os, EmbedderDataSlot(obj, i));
}
os << "\n }\n";
}
}
} // namespace
void JSObject::JSObjectPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, nullptr);
JSObjectPrintBody(os, *this);
}
void JSExternalObject::JSExternalObjectPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, nullptr);
os << "\n - external value: " << value();
JSObjectPrintBody(os, *this);
}
void JSGeneratorObject::JSGeneratorObjectPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSGeneratorObject");
os << "\n - function: " << Brief(function());
os << "\n - context: " << Brief(context());
os << "\n - receiver: " << Brief(receiver());
if (is_executing() || is_closed()) {
os << "\n - input: " << Brief(input_or_debug_pos());
} else {
DCHECK(is_suspended());
os << "\n - debug pos: " << Brief(input_or_debug_pos());
}
const char* mode = "(invalid)";
switch (resume_mode()) {
case kNext:
mode = ".next()";
break;
case kReturn:
mode = ".return()";
break;
case kThrow:
mode = ".throw()";
break;
}
os << "\n - resume mode: " << mode;
os << "\n - continuation: " << continuation();
if (is_closed()) os << " (closed)";
if (is_executing()) os << " (executing)";
if (is_suspended()) os << " (suspended)";
if (is_suspended()) {
DisallowGarbageCollection no_gc;
Tagged<SharedFunctionInfo> fun_info = function()->shared();
if (fun_info->HasSourceCode()) {
Tagged<Script> script = Cast<Script>(fun_info->script());
Tagged<String> script_name = IsString(script->name())
? Cast<String>(script->name())
: GetReadOnlyRoots().empty_string();
os << "\n - source position: ";
// Can't collect source positions here if not available as that would
// allocate memory.
Isolate* isolate = GetIsolate();
if (fun_info->HasBytecodeArray() &&
fun_info->GetBytecodeArray(isolate)->HasSourcePositionTable()) {
os << source_position();
os << " (";
script_name->PrintUC16(os);
Script::PositionInfo info;
script->GetPositionInfo(source_position(), &info);
os << ", line " << info.line + 1;
os << ", column " << info.column + 1;
} else {
os << kUnavailableString;
}
os << ")";
}
}
os << "\n - register file: " << Brief(parameters_and_registers());
JSObjectPrintBody(os, *this);
}
void JSArray::JSArrayPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSArray");
os << "\n - length: " << Brief(this->length());
JSObjectPrintBody(os, *this);
}
void JSPromise::JSPromisePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSPromise");
os << "\n - status: " << JSPromise::Status(status());
if (status() == Promise::kPending) {
os << "\n - reactions: " << Brief(reactions());
} else {
os << "\n - result: " << Brief(result());
}
os << "\n - has_handler: " << has_handler();
os << "\n - is_silent: " << is_silent();
JSObjectPrintBody(os, *this);
}
void JSRegExp::JSRegExpPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSRegExp");
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
os << "\n - data: " << Brief(data(isolate));
os << "\n - source: " << Brief(source());
FlagsBuffer buffer;
os << "\n - flags: " << JSRegExp::FlagsToString(flags(), &buffer);
JSObjectPrintBody(os, *this);
}
void RegExpData::RegExpDataPrint(std::ostream& os) {
switch (type_tag()) {
case RegExpData::Type::ATOM:
PrintHeader(os, "AtomRegExpData");
break;
case RegExpData::Type::IRREGEXP:
PrintHeader(os, "IrRegExpData");
break;
case RegExpData::Type::EXPERIMENTAL:
PrintHeader(os, "IrRegExpData");
break;
default:
UNREACHABLE();
}
os << "\n - source: " << source();
JSRegExp::FlagsBuffer buffer;
os << "\n - flags: " << JSRegExp::FlagsToString(flags(), &buffer);
}
void AtomRegExpData::AtomRegExpDataPrint(std::ostream& os) {
RegExpDataPrint(os);
os << "\n - pattern: " << pattern();
os << "\n";
}
void IrRegExpData::IrRegExpDataPrint(std::ostream& os) {
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
RegExpDataPrint(os);
if (has_latin1_bytecode()) {
os << "\n - latin1_bytecode: " << Brief(latin1_bytecode());
}
if (has_uc16_bytecode()) {
os << "\n - uc16_bytecode: " << Brief(uc16_bytecode());
}
if (has_latin1_code()) {
os << "\n - latin1_code: " << Brief(latin1_code(isolate));
}
if (has_uc16_code()) {
os << "\n - uc16_code: " << Brief(uc16_code(isolate));
}
os << "\n - capture_name_map: " << Brief(capture_name_map());
os << "\n - max_register_count: " << max_register_count();
os << "\n - capture_count: " << max_register_count();
os << "\n - ticks_until_tier_up: " << max_register_count();
os << "\n - backtrack_limit: " << max_register_count();
os << "\n";
}
void RegExpDataWrapper::RegExpDataWrapperPrint(std::ostream& os) {
PrintHeader(os, "RegExpDataWrapper");
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
os << "\n data: " << Brief(data(isolate));
os << "\n";
}
void JSRegExpStringIterator::JSRegExpStringIteratorPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSRegExpStringIterator");
os << "\n - regex: " << Brief(iterating_reg_exp());
os << "\n - string: " << Brief(iterated_string());
os << "\n - done: " << done();
os << "\n - global: " << global();
os << "\n - unicode: " << unicode();
JSObjectPrintBody(os, *this);
}
void Symbol::SymbolPrint(std::ostream& os) {
PrintHeader(os, "Symbol");
os << "\n - hash: " << hash();
os << "\n - description: " << Brief(description());
if (IsUndefined(description())) {
os << " (" << PrivateSymbolToName() << ")";
}
os << "\n - private: " << is_private();
os << "\n - private_name: " << is_private_name();
os << "\n - private_brand: " << is_private_brand();
os << "\n - is_interesting_symbol: " << is_interesting_symbol();
os << "\n - is_well_known_symbol: " << is_well_known_symbol();
os << "\n";
}
void DescriptorArray::DescriptorArrayPrint(std::ostream& os) {
PrintHeader(os, "DescriptorArray");
os << "\n - enum_cache: ";
if (enum_cache()->keys()->length() == 0) {
os << "empty";
} else {
os << enum_cache()->keys()->length();
os << "\n - keys: " << Brief(enum_cache()->keys());
os << "\n - indices: " << Brief(enum_cache()->indices());
}
os << "\n - nof slack descriptors: " << number_of_slack_descriptors();
os << "\n - nof descriptors: " << number_of_descriptors();
const auto raw = raw_gc_state(kRelaxedLoad);
os << "\n - raw gc state: mc epoch "
<< DescriptorArrayMarkingState::Epoch::decode(raw) << ", marked "
<< DescriptorArrayMarkingState::Marked::decode(raw) << ", delta "
<< DescriptorArrayMarkingState::Delta::decode(raw);
PrintDescriptors(os);
}
namespace {
template <typename T>
void PrintFixedArrayWithHeader(std::ostream& os, T* array, const char* type) {
array->PrintHeader(os, type);
os << "\n - length: " << array->length();
PrintFixedArrayElements(os, Tagged(array));
os << "\n";
}
template <typename T>
void PrintWeakArrayElements(std::ostream& os, T* array) {
// Print in array notation for non-sparse arrays.
Tagged<MaybeObject> previous_value =
array->length() > 0 ? array->get(0) : Tagged<MaybeObject>(kNullAddress);
Tagged<MaybeObject> value;
int previous_index = 0;
int i;
for (i = 1; i <= array->length(); i++) {
if (i < array->length()) value = array->get(i);
if (previous_value == value && i != array->length()) {
continue;
}
os << "\n";
std::stringstream ss;
ss << previous_index;
if (previous_index != i - 1) {
ss << '-' << (i - 1);
}
os << std::setw(12) << ss.str() << ": " << Brief(previous_value);
previous_index = i;
previous_value = value;
}
}
} // namespace
void ObjectBoilerplateDescription::ObjectBoilerplateDescriptionPrint(
std::ostream& os) {
PrintHeader(os, "ObjectBoilerplateDescription");
os << "\n - capacity: " << capacity();
os << "\n - backing_store_size: " << backing_store_size();
os << "\n - flags: " << flags();
os << "\n - elements:";
PrintFixedArrayElements<ObjectBoilerplateDescription>(
os, this, capacity(), [](Tagged<ObjectBoilerplateDescription> xs, int i) {
return xs->get(i);
});
os << "\n";
}
void ClassBoilerplate::ClassBoilerplatePrint(std::ostream& os) {
PrintHeader(os, "ClassBoilerplate");
os << "\n - arguments_count: " << arguments_count();
os << "\n - static_properties_template: " << static_properties_template();
os << "\n - static_elements_template: " << static_elements_template();
os << "\n - static_computed_properties: " << static_computed_properties();
os << "\n - instance_properties_template: " << instance_properties_template();
os << "\n - instance_elements_template: " << instance_elements_template();
os << "\n - instance_computed_properties: " << instance_computed_properties();
os << "\n";
}
void RegExpBoilerplateDescription::RegExpBoilerplateDescriptionPrint(
std::ostream& os) {
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
PrintHeader(os, "RegExpBoilerplate");
os << "\n - data: " << Brief(data(isolate));
os << "\n - source: " << source();
os << "\n - flags: " << flags();
os << "\n";
}
void EmbedderDataArray::EmbedderDataArrayPrint(std::ostream& os) {
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
PrintHeader(os, "EmbedderDataArray");
os << "\n - length: " << length();
EmbedderDataSlot start(*this, 0);
EmbedderDataSlot end(*this, length());
for (EmbedderDataSlot slot = start; slot < end; ++slot) {
os << "\n ";
PrintEmbedderData(isolate, os, slot);
}
os << "\n";
}
void FixedArray::FixedArrayPrint(std::ostream& os) {
PrintFixedArrayWithHeader(os, this, "FixedArray");
}
void TrustedFixedArray::TrustedFixedArrayPrint(std::ostream& os) {
PrintFixedArrayWithHeader(os, this, "TrustedFixedArray");
}
void ProtectedFixedArray::ProtectedFixedArrayPrint(std::ostream& os) {
PrintFixedArrayWithHeader(os, this, "ProtectedFixedArray");
}
void ArrayList::ArrayListPrint(std::ostream& os) {
PrintHeader(os, "ArrayList");
os << "\n - capacity: " << capacity();
os << "\n - length: " << length();
os << "\n - elements:";
PrintFixedArrayElements<ArrayList>(
os, this, length(),
[](Tagged<ArrayList> xs, int i) { return xs->get(i); });
os << "\n";
}
void ScriptContextTable::ScriptContextTablePrint(std::ostream& os) {
PrintHeader(os, "ScriptContextTable");
os << "\n - capacity: " << capacity();
os << "\n - length: " << length(kAcquireLoad);
os << "\n - names_to_context_index: " << names_to_context_index();
os << "\n - elements:";
PrintFixedArrayElements<ScriptContextTable>(
os, this, length(kAcquireLoad), [](Tagged<ScriptContextTable> xs, int i) {
return Cast<Object>(xs->get(i));
});
os << "\n";
}
void RegExpMatchInfo::RegExpMatchInfoPrint(std::ostream& os) {
PrintHeader(os, "RegExpMatchInfo");
os << "\n - capacity: " << capacity();
os << "\n - number_of_capture_registers: " << number_of_capture_registers();
os << "\n - last_subject: " << last_subject();
os << "\n - last_input: " << last_input();
os << "\n - captures:";
PrintFixedArrayElements<RegExpMatchInfo>(
os, this, capacity(), [](Tagged<RegExpMatchInfo> xs, int i) {
return Cast<Object>(xs->get(i));
});
os << "\n";
}
void SloppyArgumentsElements::SloppyArgumentsElementsPrint(std::ostream& os) {
PrintHeader(os, "SloppyArgumentsElements");
os << "\n - length: " << length();
os << "\n - context: " << Brief(context());
os << "\n - arguments: " << Brief(arguments());
os << "\n - mapped_entries:";
PrintFixedArrayElements<SloppyArgumentsElements>(
os, this, length(), [](Tagged<SloppyArgumentsElements> xs, int i) {
return Cast<Object>(xs->mapped_entries(i, kRelaxedLoad));
});
os << '\n';
}
namespace {
const char* SideEffectType2String(SideEffectType type) {
switch (type) {
case SideEffectType::kHasSideEffect:
return "kHasSideEffect";
case SideEffectType::kHasNoSideEffect:
return "kHasNoSideEffect";
case SideEffectType::kHasSideEffectToReceiver:
return "kHasSideEffectToReceiver";
}
}
} // namespace
void AccessorInfo::AccessorInfoPrint(std::ostream& os) {
TorqueGeneratedAccessorInfo<AccessorInfo, HeapObject>::AccessorInfoPrint(os);
os << " - is_sloppy: " << is_sloppy();
os << "\n - replace_on_access: " << replace_on_access();
os << "\n - getter_side_effect_type: "
<< SideEffectType2String(getter_side_effect_type());
os << "\n - setter_side_effect_type: "
<< SideEffectType2String(setter_side_effect_type());
os << "\n - initial_attributes: " << initial_property_attributes();
Isolate* isolate;
if (GetIsolateFromHeapObject(*this, &isolate)) {
os << "\n - getter: " << reinterpret_cast<void*>(getter(isolate));
if (USE_SIMULATOR_BOOL) {
os << "\n - maybe_redirected_getter: "
<< reinterpret_cast<void*>(maybe_redirected_getter(isolate));
}
os << "\n - setter: " << reinterpret_cast<void*>(setter(isolate));
} else {
os << "\n - getter: " << kUnavailableString;
os << "\n - maybe_redirected_getter: " << kUnavailableString;
os << "\n - setter: " << kUnavailableString;
}
os << '\n';
}
void FunctionTemplateInfo::FunctionTemplateInfoPrint(std::ostream& os) {
TorqueGeneratedFunctionTemplateInfo<
FunctionTemplateInfo, TemplateInfo>::FunctionTemplateInfoPrint(os);
Isolate* isolate;
if (GetIsolateFromHeapObject(*this, &isolate)) {
os << " - callback: " << reinterpret_cast<void*>(callback(isolate));
if (USE_SIMULATOR_BOOL) {
os << "\n - maybe_redirected_callback: "
<< reinterpret_cast<void*>(maybe_redirected_callback(isolate));
}
} else {
os << "\n - callback: " << kUnavailableString;
os << "\n - maybe_redirected_callback: " << kUnavailableString;
}
os << "\n --- flags: ";
if (is_object_template_call_handler()) {
os << "\n - is_object_template_call_handler";
}
if (has_side_effects()) os << "\n - has_side_effects";
if (undetectable()) os << "\n - undetectable";
if (needs_access_check()) os << "\n - needs_access_check";
if (read_only_prototype()) os << "\n - read_only_prototype";
if (remove_prototype()) os << "\n - remove_prototype";
if (accept_any_receiver()) os << "\n - accept_any_receiver";
if (published()) os << "\n - published";
if (allowed_receiver_instance_type_range_start() ||
allowed_receiver_instance_type_range_end()) {
os << "\n - allowed_receiver_instance_type_range: ["
<< allowed_receiver_instance_type_range_start() << ", "
<< allowed_receiver_instance_type_range_end() << "]";
}
os << '\n';
}
namespace {
void PrintContextWithHeader(std::ostream& os, Tagged<Context> context,
const char* type) {
context->PrintHeader(os, type);
os << "\n - type: " << context->map()->instance_type();
os << "\n - scope_info: " << Brief(context->scope_info());
os << "\n - previous: " << Brief(context->unchecked_previous());
os << "\n - native_context: " << Brief(context->native_context());
if (context->scope_info()->HasContextExtensionSlot()) {
os << "\n - extension: " << context->extension();
}
os << "\n - length: " << context->length();
os << "\n - elements:";
PrintFixedArrayElements(os, context);
os << "\n";
}
} // namespace
void Context::ContextPrint(std::ostream& os) {
PrintContextWithHeader(os, *this, "Context");
}
void NativeContext::NativeContextPrint(std::ostream& os) {
PrintContextWithHeader(os, *this, "NativeContext");
os << " - microtask_queue: " << microtask_queue() << "\n";
}
namespace {
using DataPrinter = std::function<void(InternalIndex)>;
// Prints the data associated with each key (but no headers or other meta
// data) in a hash table. Works on different hash table types, like the
// subtypes of HashTable and OrderedHashTable. |print_data_at| is given an
// index into the table (where a valid key resides) and prints the data at
// that index, like just the value (in case of a hash map), or value and
// property details (in case of a property dictionary). No leading space
// required or trailing newline required. It can be null/non-callable
// std::function to indicate that there is no associated data to be printed
// (for example in case of a hash set).
template <typename T>
void PrintTableContentsGeneric(std::ostream& os, T* dict,
DataPrinter print_data_at) {
DisallowGarbageCollection no_gc;
ReadOnlyRoots roots = GetReadOnlyRoots();
for (InternalIndex i : dict->IterateEntries()) {
Tagged<Object> k;
if (!dict->ToKey(roots, i, &k)) continue;
os << "\n " << std::setw(12) << i.as_int() << ": ";
if (IsString(k)) {
Cast<String>(k)->PrintUC16(os);
} else {
os << Brief(k);
}
if (print_data_at) {
os << " -> ";
print_data_at(i);
}
}
}
void PrintNameDictionaryFlags(std::ostream& os, Tagged<NameDictionary> dict) {
if (dict->may_have_interesting_properties()) {
os << "\n - may_have_interesting_properties";
}
}
// Used for ordered and unordered dictionaries.
template <typename T>
void PrintDictionaryContentsFull(std::ostream& os, T* dict) {
os << "\n - elements: {";
auto print_value_and_property_details = [&](InternalIndex i) {
os << Brief(dict->ValueAt(i)) << " ";
dict->DetailsAt(i).PrintAsSlowTo(os, !T::kIsOrderedDictionaryType);
};
PrintTableContentsGeneric(os, dict, print_value_and_property_details);
os << "\n }\n";
}
// Used for ordered and unordered hash maps.
template <typename T>
void PrintHashMapContentsFull(std::ostream& os, T* dict) {
os << "\n - elements: {";
auto print_value = [&](InternalIndex i) { os << Brief(dict->ValueAt(i)); };
PrintTableContentsGeneric(os, dict, print_value);
os << "\n }\n";
}
// Used for ordered and unordered hash sets.
template <typename T>
void PrintHashSetContentsFull(std::ostream& os, T* dict) {
os << "\n - elements: {";
// Passing non-callable std::function as there are no values to print.
PrintTableContentsGeneric(os, dict, nullptr);
os << "\n }\n";
}
// Used for subtypes of OrderedHashTable.
template <typename T>
void PrintOrderedHashTableHeaderAndBuckets(std::ostream& os, T* table,
const char* type) {
DisallowGarbageCollection no_gc;
PrintHeapObjectHeaderWithoutMap(table, os, type);
os << "\n - FixedArray length: " << table->length();
os << "\n - elements: " << table->NumberOfElements();
os << "\n - deleted: " << table->NumberOfDeletedElements();
os << "\n - buckets: " << table->NumberOfBuckets();
os << "\n - capacity: " << table->Capacity();
os << "\n - buckets: {";
for (int bucket = 0; bucket < table->NumberOfBuckets(); bucket++) {
Tagged<Object> entry = table->get(T::HashTableStartIndex() + bucket);
DCHECK(IsSmi(entry));
os << "\n " << std::setw(12) << bucket << ": " << Brief(entry);
}
os << "\n }";
}
// Used for subtypes of HashTable.
template <typename T>
void PrintHashTableHeader(std::ostream& os, T* table, const char* type) {
PrintHeapObjectHeaderWithoutMap(table, os, type);
os << "\n - FixedArray length: " << table->length();
os << "\n - elements: " << table->NumberOfElements();
os << "\n - deleted: " << table->NumberOfDeletedElements();
os << "\n - capacity: " << table->Capacity();
}
} // namespace
void ObjectHashTable::ObjectHashTablePrint(std::ostream& os) {
PrintHashTableHeader(os, this, "ObjectHashTable");
PrintHashMapContentsFull(os, this);
}
void NameToIndexHashTable::NameToIndexHashTablePrint(std::ostream& os) {
PrintHashTableHeader(os, this, "NameToIndexHashTable");
PrintHashMapContentsFull(os, this);
}
void RegisteredSymbolTable::RegisteredSymbolTablePrint(std::ostream& os) {
PrintHashTableHeader(os, this, "RegisteredSymbolTable");
PrintHashMapContentsFull(os, this);
}
void NumberDictionary::NumberDictionaryPrint(std::ostream& os) {
PrintHashTableHeader(os, this, "NumberDictionary");
PrintDictionaryContentsFull(os, this);
}
void EphemeronHashTable::EphemeronHashTablePrint(std::ostream& os) {
PrintHashTableHeader(os, this, "EphemeronHashTable");
PrintHashMapContentsFull(os, this);
}
void NameDictionary::NameDictionaryPrint(std::ostream& os) {
PrintHashTableHeader(os, this, "NameDictionary");
PrintNameDictionaryFlags(os, this);
PrintDictionaryContentsFull(os, this);
}
void GlobalDictionary::GlobalDictionaryPrint(std::ostream& os) {
PrintHashTableHeader(os, this, "GlobalDictionary");
PrintDictionaryContentsFull(os, this);
}
void SmallOrderedHashSet::SmallOrderedHashSetPrint(std::ostream& os) {
PrintHeader(os, "SmallOrderedHashSet");
// TODO(turbofan): Print all fields.
}
void SmallOrderedHashMap::SmallOrderedHashMapPrint(std::ostream& os) {
PrintHeader(os, "SmallOrderedHashMap");
// TODO(turbofan): Print all fields.
}
void SmallOrderedNameDictionary::SmallOrderedNameDictionaryPrint(
std::ostream& os) {
PrintHeader(os, "SmallOrderedNameDictionary");
// TODO(turbofan): Print all fields.
}
void OrderedHashSet::OrderedHashSetPrint(std::ostream& os) {
PrintOrderedHashTableHeaderAndBuckets(os, this, "OrderedHashSet");
PrintHashSetContentsFull(os, this);
}
void OrderedHashMap::OrderedHashMapPrint(std::ostream& os) {
PrintOrderedHashTableHeaderAndBuckets(os, this, "OrderedHashMap");
PrintHashMapContentsFull(os, this);
}
void OrderedNameDictionary::OrderedNameDictionaryPrint(std::ostream& os) {
PrintOrderedHashTableHeaderAndBuckets(os, this, "OrderedNameDictionary");
PrintDictionaryContentsFull(os, this);
}
void print_hex_byte(std::ostream& os, int value) {
os << "0x" << std::setfill('0') << std::setw(2) << std::right << std::hex
<< (value & 0xff) << std::setfill(' ');
}
void SwissNameDictionary::SwissNameDictionaryPrint(std::ostream& os) {
this->PrintHeader(os, "SwissNameDictionary");
os << "\n - meta table ByteArray: "
<< reinterpret_cast<void*>(this->meta_table().ptr());
os << "\n - capacity: " << this->Capacity();
os << "\n - elements: " << this->NumberOfElements();
os << "\n - deleted: " << this->NumberOfDeletedElements();
std::ios_base::fmtflags sav_flags = os.flags();
os << "\n - ctrl table (omitting buckets where key is hole value): {";
for (int i = 0; i < this->Capacity() + kGroupWidth; i++) {
ctrl_t ctrl = CtrlTable()[i];
if (ctrl == Ctrl::kEmpty) continue;
os << "\n " << std::setw(12) << std::dec << i << ": ";
switch (ctrl) {
case Ctrl::kEmpty:
UNREACHABLE();
case Ctrl::kDeleted:
print_hex_byte(os, ctrl);
os << " (= kDeleted)";
break;
case Ctrl::kSentinel:
print_hex_byte(os, ctrl);
os << " (= kSentinel)";
break;
default:
print_hex_byte(os, ctrl);
os << " (= H2 of a key)";
break;
}
}
os << "\n }";
os << "\n - enumeration table: {";
for (int enum_index = 0; enum_index < this->UsedCapacity(); enum_index++) {
int entry = EntryForEnumerationIndex(enum_index);
os << "\n " << std::setw(12) << std::dec << enum_index << ": " << entry;
}
os << "\n }";
os << "\n - data table (omitting slots where key is the hole): {";
for (int bucket = 0; bucket < this->Capacity(); ++bucket) {
Tagged<Object> k;
if (!this->ToKey(GetReadOnlyRoots(), bucket, &k)) continue;
Tagged<Object> value = this->ValueAtRaw(bucket);
PropertyDetails details = this->DetailsAt(bucket);
os << "\n " << std::setw(12) << std::dec << bucket << ": ";
if (IsString(k)) {
Cast<String>(k)->PrintUC16(os);
} else {
os << Brief(k);
}
os << " -> " << Brief(value);
details.PrintAsSlowTo(os, false);
}
os << "\n }\n";
os.flags(sav_flags);
}
void PropertyArray::PropertyArrayPrint(std::ostream& os) {
PrintHeader(os, "PropertyArray");
os << "\n - length: " << length();
os << "\n - hash: " << Hash();
PrintFixedArrayElements(os, Tagged(*this));
os << "\n";
}
void FixedDoubleArray::FixedDoubleArrayPrint(std::ostream& os) {
PrintHeader(os, "FixedDoubleArray");
os << "\n - length: " << length();
DoPrintElements<FixedDoubleArray>(os, this, length());
os << "\n";
}
void WeakFixedArray::WeakFixedArrayPrint(std::ostream& os) {
PrintHeader(os, "WeakFixedArray");
os << "\n - length: " << length();
PrintWeakArrayElements(os, this);
os << "\n";
}
void TrustedWeakFixedArray::TrustedWeakFixedArrayPrint(std::ostream& os) {
PrintHeader(os, "TrustedWeakFixedArray");
os << "\n - length: " << length();
PrintWeakArrayElements(os, this);
os << "\n";
}
void ProtectedWeakFixedArray::ProtectedWeakFixedArrayPrint(std::ostream& os) {
PrintHeader(os, "ProtectedWeakFixedArray");
os << "\n - length: " << length();
PrintWeakArrayElements(os, this);
os << "\n";
}
void WeakArrayList::WeakArrayListPrint(std::ostream& os) {
PrintHeader(os, "WeakArrayList");
os << "\n - capacity: " << capacity();
os << "\n - length: " << length();
PrintWeakArrayElements(os, this);
os << "\n";
}
void TransitionArray::TransitionArrayPrint(std::ostream& os) {
PrintHeader(os, "TransitionArray");
PrintInternal(os);
os << "\n";
}
void FeedbackCell::FeedbackCellPrint(std::ostream& os) {
PrintHeader(os, "FeedbackCell");
ReadOnlyRoots roots = GetReadOnlyRoots();
if (map() == roots.no_closures_cell_map()) {
os << "\n - no closures";
} else if (map() == roots.one_closure_cell_map()) {
os << "\n - one closure";
} else if (map() == roots.many_closures_cell_map()) {
os << "\n - many closures";
} else {
os << "\n - Invalid FeedbackCell map";
}
os << "\n - value: " << Brief(value());
os << "\n - interrupt_budget: " << interrupt_budget();
#ifdef V8_ENABLE_LEAPTIERING
os << "\n - dispatch_handle: 0x" << std::hex << dispatch_handle() << std::dec;
JSDispatchTable* jdt = IsolateGroup::current()->js_dispatch_table();
if (dispatch_handle() != kNullJSDispatchHandle &&
jdt->IsTieringRequested(dispatch_handle())) {
os << "\n - tiering request ";
if (Tagged<FeedbackVector> fbv;
TryCast(value(), &fbv) && fbv->tiering_in_progress()) {
os << "in_progress ";
}
jdt->PrintCurrentTieringRequest(dispatch_handle(),
GetIsolateFromWritableObject(*this), os);
}
#endif // V8_ENABLE_LEAPTIERING
os << "\n";
}
void FeedbackVectorSpec::Print() {
StdoutStream os;
FeedbackVectorSpecPrint(os);
os << std::flush;
}
void FeedbackVectorSpec::FeedbackVectorSpecPrint(std::ostream& os) {
os << " - slot_count: " << slot_count();
if (slot_count() == 0) {
os << " (empty)\n";
return;
}
for (int slot = 0; slot < slot_count();) {
FeedbackSlotKind kind = GetKind(FeedbackSlot(slot));
int entry_size = FeedbackMetadata::GetSlotSize(kind);
DCHECK_LT(0, entry_size);
os << "\n Slot #" << slot << " " << kind;
slot += entry_size;
}
os << "\n";
}
void FeedbackMetadata::FeedbackMetadataPrint(std::ostream& os) {
PrintHeader(os, "FeedbackMetadata");
os << "\n - slot_count: " << slot_count();
os << "\n - create_closure_slot_count: " << create_closure_slot_count();
FeedbackMetadataIterator iter(*this);
while (iter.HasNext()) {
FeedbackSlot slot = iter.Next();
FeedbackSlotKind kind = iter.kind();
os << "\n Slot " << slot << " " << kind;
}
os << "\n";
}
void ClosureFeedbackCellArray::ClosureFeedbackCellArrayPrint(std::ostream& os) {
PrintHeader(os, "ClosureFeedbackCellArray");
os << "\n - length: " << length();
os << "\n - elements:";
PrintFixedArrayElements<ClosureFeedbackCellArray>(os, this);
os << "\n";
}
void FeedbackVector::FeedbackVectorPrint(std::ostream& os) {
PrintHeader(os, "FeedbackVector");
os << "\n - length: " << length();
if (length() == 0) {
os << " (empty)\n";
return;
}
os << "\n - shared function info: " << Brief(shared_function_info());
#ifdef V8_ENABLE_LEAPTIERING
os << "\n - tiering_in_progress: " << tiering_in_progress();
#else
os << "\n - tiering state: " << tiering_state();
if (has_optimized_code()) {
os << "\n - optimized code: "
<< Brief(optimized_code(GetIsolateForSandbox(*this)));
} else {
os << "\n - no optimized code";
}
os << "\n - maybe has maglev code: " << maybe_has_maglev_code();
os << "\n - maybe has turbofan code: " << maybe_has_turbofan_code();
#endif // !V8_ENABLE_LEAPTIERING
os << "\n - osr_tiering_in_progress: " << osr_tiering_in_progress();
os << "\n - invocation count: " << invocation_count();
os << "\n - closure feedback cell array: ";
closure_feedback_cell_array()->ClosureFeedbackCellArrayPrint(os);
FeedbackMetadataIterator iter(metadata());
while (iter.HasNext()) {
FeedbackSlot slot = iter.Next();
FeedbackSlotKind kind = iter.kind();
os << "\n - slot " << slot << " " << kind << " ";
FeedbackSlotPrint(os, slot);
int entry_size = iter.entry_size();
if (entry_size > 0) os << " {";
for (int i = 0; i < entry_size; i++) {
FeedbackSlot slot_with_offset = slot.WithOffset(i);
os << "\n [" << slot_with_offset.ToInt()
<< "]: " << Brief(Get(slot_with_offset));
}
if (entry_size > 0) os << "\n }";
}
os << "\n";
}
void FeedbackVector::FeedbackSlotPrint(std::ostream& os, FeedbackSlot slot) {
FeedbackNexus nexus(GetIsolate(), *this, slot);
nexus.Print(os);
}
void FeedbackNexus::Print(std::ostream& os) {
auto slot_kind = kind();
switch (slot_kind) {
case FeedbackSlotKind::kCall:
case FeedbackSlotKind::kCloneObject:
case FeedbackSlotKind::kHasKeyed:
case FeedbackSlotKind::kInstanceOf:
case FeedbackSlotKind::kTypeOf:
case FeedbackSlotKind::kDefineKeyedOwnPropertyInLiteral:
case FeedbackSlotKind::kStoreInArrayLiteral: {
os << InlineCacheState2String(ic_state());
break;
}
case FeedbackSlotKind::kLoadGlobalInsideTypeof:
case FeedbackSlotKind::kLoadGlobalNotInsideTypeof:
case FeedbackSlotKind::kStoreGlobalSloppy:
case FeedbackSlotKind::kStoreGlobalStrict: {
os << InlineCacheState2String(ic_state());
if (ic_state() == InlineCacheState::MONOMORPHIC) {
os << "\n ";
if (GetFeedback().IsCleared()) {
// Handler mode: feedback is the cleared value, extra is the handler.
if (IsLoadGlobalICKind(slot_kind)) {
LoadHandler::PrintHandler(GetFeedbackExtra().GetHeapObjectOrSmi(),
os);
} else {
StoreHandler::PrintHandler(GetFeedbackExtra().GetHeapObjectOrSmi(),
os);
}
} else if (IsPropertyCell(GetFeedback().GetHeapObjectOrSmi())) {
os << Brief(GetFeedback());
} else {
// Lexical variable mode: the variable location is encoded in the SMI.
int handler = GetFeedback().GetHeapObjectOrSmi().ToSmi().value();
os << (IsLoadGlobalICKind(slot_kind) ? "Load" : "Store");
os << "Handler(Lexical variable mode)(context ix = "
<< FeedbackNexus::ContextIndexBits::decode(handler)
<< ", slot ix = " << FeedbackNexus::SlotIndexBits::decode(handler)
<< ")";
}
}
break;
}
case FeedbackSlotKind::kLoadKeyed:
case FeedbackSlotKind::kLoadProperty: {
os << InlineCacheState2String(ic_state());
if (ic_state() == InlineCacheState::MONOMORPHIC) {
os << "\n " << Brief(GetFeedback()) << ": ";
if (GetFeedbackExtra().IsCleared()) {
os << " <cleared>\n";
break;
}
Tagged<Object> handler = GetFeedbackExtra().GetHeapObjectOrSmi();
if (IsWeakFixedArray(handler) &&
!Cast<WeakFixedArray>(handler)->get(0).IsCleared()) {
handler = Cast<WeakFixedArray>(handler)->get(0).GetHeapObjectOrSmi();
}
LoadHandler::PrintHandler(handler, os);
} else if (ic_state() == InlineCacheState::POLYMORPHIC) {
Tagged<HeapObject> feedback = GetFeedback().GetHeapObject();
Tagged<WeakFixedArray> array;
if (IsName(feedback)) {
os << " with name " << Brief(feedback);
array = Cast<WeakFixedArray>(GetFeedbackExtra().GetHeapObject());
} else {
array = Cast<WeakFixedArray>(feedback);
}
for (int i = 0; i < array->length(); i += 2) {
os << "\n " << Brief(array->get(i)) << ": ";
LoadHandler::PrintHandler(array->get(i + 1).GetHeapObjectOrSmi(), os);
}
}
break;
}
case FeedbackSlotKind::kDefineNamedOwn:
case FeedbackSlotKind::kDefineKeyedOwn:
case FeedbackSlotKind::kSetNamedSloppy:
case FeedbackSlotKind::kSetNamedStrict:
case FeedbackSlotKind::kSetKeyedSloppy:
case FeedbackSlotKind::kSetKeyedStrict: {
os << InlineCacheState2String(ic_state());
if (GetFeedback().IsCleared()) {
os << "\n [cleared]";
break;
}
if (ic_state() == InlineCacheState::MONOMORPHIC) {
Tagged<HeapObject> feedback = GetFeedback().GetHeapObject();
if (GetFeedbackExtra().IsCleared()) {
os << " [cleared]\n";
break;
}
if (IsName(feedback)) {
os << " with name " << Brief(feedback);
Tagged<WeakFixedArray> array =
Cast<WeakFixedArray>(GetFeedbackExtra().GetHeapObject());
os << "\n " << Brief(array->get(0)) << ": ";
if (array->get(1).IsCleared()) {
os << "[cleared]\n";
} else {
Tagged<Object> handler = array->get(1).GetHeapObjectOrSmi();
StoreHandler::PrintHandler(handler, os);
}
} else {
os << "\n " << Brief(feedback) << ": ";
StoreHandler::PrintHandler(GetFeedbackExtra().GetHeapObjectOrSmi(),
os);
}
} else if (ic_state() == InlineCacheState::POLYMORPHIC) {
Tagged<HeapObject> feedback = GetFeedback().GetHeapObject();
Tagged<WeakFixedArray> array;
if (IsName(feedback)) {
os << " with name " << Brief(feedback);
array = Cast<WeakFixedArray>(GetFeedbackExtra().GetHeapObject());
} else {
array = Cast<WeakFixedArray>(feedback);
}
for (int i = 0; i < array->length(); i += 2) {
os << "\n " << Brief(array->get(i)) << ": ";
if (!array->get(i + 1).IsCleared()) {
StoreHandler::PrintHandler(array->get(i + 1).GetHeapObjectOrSmi(),
os);
}
}
}
break;
}
case FeedbackSlotKind::kBinaryOp: {
os << "BinaryOp:" << GetBinaryOperationFeedback();
break;
}
case FeedbackSlotKind::kCompareOp: {
os << "CompareOp:" << GetCompareOperationFeedback();
break;
}
case FeedbackSlotKind::kForIn: {
os << "ForIn:" << GetForInFeedback();
break;
}
case FeedbackSlotKind::kLiteral:
break;
case FeedbackSlotKind::kJumpLoop:
os << "JumpLoop";
break;
case FeedbackSlotKind::kInvalid:
UNREACHABLE();
}
}
void Oddball::OddballPrint(std::ostream& os) {
PrintHeapObjectHeaderWithoutMap(Tagged<HeapObject>(this), os, "Oddball");
os << ": ";
Tagged<String> s = to_string();
os << s->PrefixForDebugPrint();
s->PrintUC16(os);
os << s->SuffixForDebugPrint();
os << std::endl;
}
void Hole::HolePrint(std::ostream& os) {
PrintHeapObjectHeaderWithoutMap(*this, os, "Hole");
ReadOnlyRoots roots = GetReadOnlyRoots();
#define PRINT_SPECIFIC_HOLE(type, name, CamelName) \
if (*this == roots.name()) { \
os << "\n <" #name ">"; \
}
HOLE_LIST(PRINT_SPECIFIC_HOLE);
#undef PRINT_SPECIFIC_HOLE
os << std::endl;
}
void JSAsyncFunctionObject::JSAsyncFunctionObjectPrint(std::ostream& os) {
JSGeneratorObjectPrint(os);
}
void JSAsyncGeneratorObject::JSAsyncGeneratorObjectPrint(std::ostream& os) {
JSGeneratorObjectPrint(os);
}
void JSArgumentsObject::JSArgumentsObjectPrint(std::ostream& os) {
JSObjectPrint(os);
}
void JSStringIterator::JSStringIteratorPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSStringIterator");
os << "\n - string: " << Brief(string());
os << "\n - index: " << index();
JSObjectPrintBody(os, *this);
}
void JSAsyncFromSyncIterator::JSAsyncFromSyncIteratorPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSAsyncFromSyncIterator");
os << "\n - sync_iterator: " << Brief(sync_iterator());
os << "\n - next: " << Brief(next());
JSObjectPrintBody(os, *this);
}
void JSValidIteratorWrapper::JSValidIteratorWrapperPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSValidIteratorWrapper");
os << "\n - underlying.object: " << Brief(underlying_object());
os << "\n - underlying.next: " << Brief(underlying_next());
JSObjectPrintBody(os, *this);
}
void JSPrimitiveWrapper::JSPrimitiveWrapperPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSPrimitiveWrapper");
os << "\n - value: " << Brief(value());
JSObjectPrintBody(os, *this);
}
void JSMessageObject::JSMessageObjectPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSMessageObject");
os << "\n - type: " << static_cast<int>(type());
os << "\n - arguments: " << Brief(argument());
os << "\n - script: " << Brief(script());
os << "\n - stack_trace: " << Brief(stack_trace());
os << "\n - shared_info: " << Brief(shared_info());
if (shared_info() == Smi::zero()) {
os << " (cleared after calculating line ends)";
} else if (shared_info() == Smi::FromInt(-1)) {
os << "(no line ends needed)";
}
os << "\n - bytecode_offset: " << bytecode_offset();
os << "\n - start_position: " << start_position();
os << "\n - end_position: " << end_position();
os << "\n - error_level: " << error_level();
JSObjectPrintBody(os, *this);
}
void String::StringPrint(std::ostream& os) {
PrintHeapObjectHeaderWithoutMap(this, os, "String");
os << ": ";
os << PrefixForDebugPrint();
PrintUC16(os, 0, length());
os << SuffixForDebugPrint();
}
void Name::NamePrint(std::ostream& os) {
if (IsString(this)) {
Cast<String>(this)->StringPrint(os);
} else {
os << Brief(this);
}
}
static const char* const weekdays[] = {"???", "Sun", "Mon", "Tue",
"Wed", "Thu", "Fri", "Sat"};
void JSDate::JSDatePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSDate");
os << "\n - value: " << value();
if (!IsSmi(year())) {
os << "\n - time = NaN\n";
} else {
// TODO(svenpanne) Add some basic formatting to our streams.
base::ScopedVector<char> buf(100);
SNPrintF(buf, "\n - time = %s %04d/%02d/%02d %02d:%02d:%02d\n",
weekdays[IsSmi(weekday()) ? Smi::ToInt(weekday()) + 1 : 0],
IsSmi(year()) ? Smi::ToInt(year()) : -1,
IsSmi(month()) ? Smi::ToInt(month()) : -1,
IsSmi(day()) ? Smi::ToInt(day()) : -1,
IsSmi(hour()) ? Smi::ToInt(hour()) : -1,
IsSmi(min()) ? Smi::ToInt(min()) : -1,
IsSmi(sec()) ? Smi::ToInt(sec()) : -1);
os << buf.begin();
}
JSObjectPrintBody(os, *this);
}
void JSSet::JSSetPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSSet");
os << "\n - table: " << Brief(table());
JSObjectPrintBody(os, *this);
}
void JSMap::JSMapPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSMap");
os << "\n - table: " << Brief(table());
JSObjectPrintBody(os, *this);
}
void JSCollectionIterator::JSCollectionIteratorPrint(std::ostream& os,
const char* name) {
JSObjectPrintHeader(os, *this, name);
os << "\n - table: " << Brief(table());
os << "\n - index: " << Brief(index());
JSObjectPrintBody(os, *this);
}
void JSSetIterator::JSSetIteratorPrint(std::ostream& os) {
JSCollectionIteratorPrint(os, "JSSetIterator");
}
void JSMapIterator::JSMapIteratorPrint(std::ostream& os) {
JSCollectionIteratorPrint(os, "JSMapIterator");
}
void JSWeakRef::JSWeakRefPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSWeakRef");
os << "\n - target: " << Brief(target());
JSObjectPrintBody(os, *this);
}
void JSShadowRealm::JSShadowRealmPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSShadowRealm");
os << "\n - native_context: " << Brief(native_context());
JSObjectPrintBody(os, *this);
}
void JSWrappedFunction::JSWrappedFunctionPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSWrappedFunction");
os << "\n - wrapped_target_function: " << Brief(wrapped_target_function());
JSObjectPrintBody(os, *this);
}
void JSFinalizationRegistry::JSFinalizationRegistryPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSFinalizationRegistry");
os << "\n - native_context: " << Brief(native_context());
os << "\n - cleanup: " << Brief(cleanup());
os << "\n - active_cells: " << Brief(active_cells());
Tagged<Object> active_cell = active_cells();
while (IsWeakCell(active_cell)) {
os << "\n - " << Brief(active_cell);
active_cell = Cast<WeakCell>(active_cell)->next();
}
os << "\n - cleared_cells: " << Brief(cleared_cells());
Tagged<Object> cleared_cell = cleared_cells();
while (IsWeakCell(cleared_cell)) {
os << "\n - " << Brief(cleared_cell);
cleared_cell = Cast<WeakCell>(cleared_cell)->next();
}
os << "\n - key_map: " << Brief(key_map());
JSObjectPrintBody(os, *this);
}
void JSSharedArray::JSSharedArrayPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSSharedArray");
Isolate* isolate = GetIsolateFromWritableObject(*this);
os << "\n - isolate: " << isolate;
if (HeapLayout::InWritableSharedSpace(*this)) os << " (shared)";
JSObjectPrintBody(os, *this);
}
void JSSharedStruct::JSSharedStructPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSSharedStruct");
Isolate* isolate = GetIsolateFromWritableObject(*this);
os << "\n - isolate: " << isolate;
if (HeapLayout::InWritableSharedSpace(*this)) os << " (shared)";
JSObjectPrintBody(os, *this);
}
void JSAtomicsMutex::JSAtomicsMutexPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSAtomicsMutex");
Isolate* isolate = GetIsolateFromWritableObject(*this);
os << "\n - isolate: " << isolate;
if (HeapLayout::InWritableSharedSpace(*this)) os << " (shared)";
os << "\n - state: " << this->state();
os << "\n - owner_thread_id: " << this->owner_thread_id();
JSObjectPrintBody(os, *this);
}
void JSAtomicsCondition::JSAtomicsConditionPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSAtomicsCondition");
Isolate* isolate = GetIsolateFromWritableObject(*this);
os << "\n - isolate: " << isolate;
if (HeapLayout::InWritableSharedSpace(*this)) os << " (shared)";
os << "\n - state: " << this->state();
JSObjectPrintBody(os, *this);
}
std::ostream& operator<<(std::ostream& os, DisposableStackState state) {
switch (state) {
case DisposableStackState::kPending:
return os << "Pending";
case DisposableStackState::kDisposed:
return os << "Disposed";
}
UNREACHABLE();
}
void JSDisposableStackBase::JSDisposableStackBasePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSDisposableStack");
os << "\n - stack: " << Brief(stack());
os << "\n - length: " << length();
os << "\n - state: " << state();
os << "\n - needs_await: " << needs_await();
os << "\n - has_awaited: " << has_awaited();
os << "\n - suppressed_error_created: " << suppressed_error_created();
os << "\n - error: " << error();
os << "\n - error_message: " << error_message();
JSObjectPrintBody(os, *this);
}
void JSAsyncDisposableStack::JSAsyncDisposableStackPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSAsyncDisposableStack");
os << "\n - stack: " << Brief(stack());
os << "\n - length: " << length();
os << "\n - state: " << state();
os << "\n - needs_await: " << needs_await();
os << "\n - has_awaited: " << has_awaited();
os << "\n - suppressed_error_created: " << suppressed_error_created();
os << "\n - error: " << error();
os << "\n - error_message: " << error_message();
JSObjectPrintBody(os, *this);
}
void JSIteratorHelper::JSIteratorHelperPrintHeader(std::ostream& os,
const char* helper_name) {
JSObjectPrintHeader(os, *this, helper_name);
os << "\n - underlying.object: " << Brief(underlying_object());
os << "\n - underlying.next: " << Brief(underlying_next());
}
void JSIteratorMapHelper::JSIteratorMapHelperPrint(std::ostream& os) {
JSIteratorHelperPrintHeader(os, "JSIteratorMapHelper");
os << "\n - mapper: " << Brief(mapper());
os << "\n - counter: " << counter();
JSObjectPrintBody(os, *this);
}
void JSIteratorFilterHelper::JSIteratorFilterHelperPrint(std::ostream& os) {
JSIteratorHelperPrintHeader(os, "JSIteratorFilterHelper");
os << "\n - predicate: " << Brief(predicate());
os << "\n - counter: " << counter();
JSObjectPrintBody(os, *this);
}
void JSIteratorTakeHelper::JSIteratorTakeHelperPrint(std::ostream& os) {
JSIteratorHelperPrintHeader(os, "JSIteratorTakeHelper");
os << "\n - remaining: " << remaining();
JSObjectPrintBody(os, *this);
}
void JSIteratorDropHelper::JSIteratorDropHelperPrint(std::ostream& os) {
JSIteratorHelperPrintHeader(os, "JSIteratorDropHelper");
os << "\n - remaining: " << remaining();
JSObjectPrintBody(os, *this);
}
void JSIteratorFlatMapHelper::JSIteratorFlatMapHelperPrint(std::ostream& os) {
JSIteratorHelperPrintHeader(os, "JSIteratorFlatMapHelper");
os << "\n - mapper: " << Brief(mapper());
os << "\n - counter: " << counter();
os << "\n - innerIterator.object" << Brief(innerIterator_object());
os << "\n - innerIterator.next" << Brief(innerIterator_next());
os << "\n - innerAlive" << innerAlive();
JSObjectPrintBody(os, *this);
}
void JSWeakMap::JSWeakMapPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSWeakMap");
os << "\n - table: " << Brief(table());
JSObjectPrintBody(os, *this);
}
void JSWeakSet::JSWeakSetPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSWeakSet");
os << "\n - table: " << Brief(table());
JSObjectPrintBody(os, *this);
}
void JSArrayBuffer::JSArrayBufferPrint(std::ostream& os) {
JSAPIObjectWithEmbedderSlotsPrintHeader(os, *this, "JSArrayBuffer");
os << "\n - backing_store: " << backing_store();
os << "\n - byte_length: " << byte_length();
os << "\n - max_byte_length: " << max_byte_length();
os << "\n - detach key: " << detach_key();
if (is_external()) os << "\n - external";
if (is_detachable()) os << "\n - detachable";
if (was_detached()) os << "\n - detached";
if (is_shared()) os << "\n - shared";
if (is_resizable_by_js()) os << "\n - resizable_by_js";
JSObjectPrintBody(os, *this, !was_detached());
}
void JSTypedArray::JSTypedArrayPrint(std::ostream& os) {
JSAPIObjectWithEmbedderSlotsPrintHeader(os, *this, "JSTypedArray");
os << "\n - buffer: " << Brief(buffer());
os << "\n - byte_offset: " << byte_offset();
os << "\n - byte_length: " << byte_length();
os << "\n - length: " << GetLength();
os << "\n - data_ptr: " << DataPtr();
Tagged_t base_ptr = static_cast<Tagged_t>(base_pointer().ptr());
os << "\n - base_pointer: "
<< reinterpret_cast<void*>(static_cast<Address>(base_ptr));
os << "\n - external_pointer: "
<< reinterpret_cast<void*>(external_pointer());
if (!IsJSArrayBuffer(buffer())) {
os << "\n <invalid buffer>\n";
return;
}
if (WasDetached()) os << "\n - detached";
if (is_length_tracking()) os << "\n - length-tracking";
if (is_backed_by_rab()) os << "\n - backed-by-rab";
JSObjectPrintBody(os, *this, !WasDetached());
}
void JSArrayIterator::JSArrayIteratorPrint(std::ostream& os) { // NOLING
JSObjectPrintHeader(os, *this, "JSArrayIterator");
os << "\n - iterated_object: " << Brief(iterated_object());
os << "\n - next_index: " << Brief(next_index());
os << "\n - kind: " << kind();
JSObjectPrintBody(os, *this);
}
void JSDataView::JSDataViewPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSDataView");
os << "\n - buffer =" << Brief(buffer());
os << "\n - byte_offset: " << byte_offset();
os << "\n - byte_length: " << byte_length();
if (!IsJSArrayBuffer(buffer())) {
os << "\n <invalid buffer>";
return;
}
if (WasDetached()) os << "\n - detached";
JSObjectPrintBody(os, *this, !WasDetached());
}
void JSRabGsabDataView::JSRabGsabDataViewPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSRabGsabDataView");
os << "\n - buffer =" << Brief(buffer());
os << "\n - byte_offset: " << byte_offset();
os << "\n - byte_length: " << byte_length();
if (is_length_tracking()) os << "\n - length-tracking";
if (is_backed_by_rab()) os << "\n - backed-by-rab";
if (!IsJSArrayBuffer(buffer())) {
os << "\n <invalid buffer>";
return;
}
if (WasDetached()) os << "\n - detached";
JSObjectPrintBody(os, *this, !WasDetached());
}
void JSBoundFunction::JSBoundFunctionPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSBoundFunction");
os << "\n - bound_target_function: " << Brief(bound_target_function());
os << "\n - bound_this: " << Brief(bound_this());
os << "\n - bound_arguments: " << Brief(bound_arguments());
JSObjectPrintBody(os, *this);
}
void JSFunction::JSFunctionPrint(std::ostream& os) {
Isolate* isolate = GetIsolate();
JSObjectPrintHeader(os, *this, "Function");
os << "\n - function prototype: ";
if (has_prototype_slot()) {
if (has_prototype()) {
os << Brief(prototype());
if (map()->has_non_instance_prototype()) {
os << " (non-instance prototype)";
}
}
os << "\n - initial_map: ";
if (has_initial_map()) os << Brief(initial_map());
} else {
os << "<no-prototype-slot>";
}
os << "\n - shared_info: " << Brief(shared());
os << "\n - name: " << Brief(shared()->Name());
// Print Builtin name for builtin functions
Builtin builtin = code(isolate)->builtin_id();
if (Builtins::IsBuiltinId(builtin)) {
os << "\n - builtin: " << isolate->builtins()->name(builtin);
}
os << "\n - formal_parameter_count: ";
int formal_parameter_count =
shared()->internal_formal_parameter_count_with_receiver();
if (formal_parameter_count == kDontAdaptArgumentsSentinel) {
os << "kDontAdaptArgumentsSentinel";
} else {
os << formal_parameter_count;
}
os << "\n - kind: " << shared()->kind();
os << "\n - context: " << Brief(context());
os << "\n - code: " << Brief(code(isolate));
#ifdef V8_ENABLE_LEAPTIERING
os << "\n - dispatch_handle: 0x" << std::hex << dispatch_handle() << std::dec;
if (has_feedback_vector() &&
raw_feedback_cell()->dispatch_handle() != dispatch_handle()) {
os << "\n - canonical feedback cell dispatch_handle: 0x" << std::hex
<< raw_feedback_cell()->dispatch_handle() << std::dec;
}
if (IsTieringRequestedOrInProgress()) {
os << "\n - tiering request ";
if (tiering_in_progress()) {
os << "in_progress ";
}
IsolateGroup::current()->js_dispatch_table()->PrintCurrentTieringRequest(
dispatch_handle(), GetIsolate(), os);
}
#endif // V8_ENABLE_LEAPTIERING
if (code(isolate)->kind() == CodeKind::FOR_TESTING) {
os << "\n - FOR_TESTING";
} else if (ActiveTierIsIgnition(isolate)) {
os << "\n - interpreted";
if (shared()->HasBytecodeArray()) {
os << "\n - bytecode: " << shared()->GetBytecodeArray(isolate);
}
}
#if V8_ENABLE_WEBASSEMBLY
if (WasmExportedFunction::IsWasmExportedFunction(*this)) {
Tagged<WasmExportedFunction> function = Cast<WasmExportedFunction>(*this);
Tagged<WasmExportedFunctionData> data =
function->shared()->wasm_exported_function_data();
os << "\n - Wasm instance data: " << Brief(data->instance_data());
os << "\n - Wasm function index: " << data->function_index();
}
if (WasmJSFunction::IsWasmJSFunction(*this)) {
Tagged<WasmJSFunction> function = Cast<WasmJSFunction>(*this);
os << "\n - Wasm wrapper around: "
<< Brief(function->shared()->wasm_js_function_data()->GetCallable());
}
#endif // V8_ENABLE_WEBASSEMBLY
shared()->PrintSourceCode(os);
JSObjectPrintBody(os, *this);
os << " - feedback vector: ";
if (!shared()->HasFeedbackMetadata()) {
os << "feedback metadata is not available in SFI\n";
} else if (has_feedback_vector()) {
feedback_vector()->FeedbackVectorPrint(os);
} else if (has_closure_feedback_cell_array()) {
os << "No feedback vector, but we have a closure feedback cell array\n";
closure_feedback_cell_array()->ClosureFeedbackCellArrayPrint(os);
} else {
os << "not available\n";
}
}
void SharedFunctionInfo::PrintSourceCode(std::ostream& os) {
if (HasSourceCode()) {
os << "\n - source code: ";
Tagged<String> source = Cast<String>(Cast<Script>(script())->source());
int start = StartPosition();
int length = EndPosition() - start;
std::unique_ptr<char[]> source_string = source->ToCString(start, length);
os << source_string.get();
}
}
void SharedFunctionInfo::SharedFunctionInfoPrint(std::ostream& os) {
PrintHeader(os, "SharedFunctionInfo");
os << "\n - name: ";
if (HasSharedName()) {
os << Brief(Name());
} else {
os << "<no-shared-name>";
}
if (HasInferredName()) {
os << "\n - inferred name: " << Brief(inferred_name());
}
if (class_scope_has_private_brand()) {
os << "\n - class_scope_has_private_brand";
}
if (has_static_private_methods_or_accessors()) {
os << "\n - has_static_private_methods_or_accessors";
}
if (private_name_lookup_skips_outer_class()) {
os << "\n - private_name_lookup_skips_outer_class";
}
os << "\n - kind: " << kind();
os << "\n - syntax kind: " << syntax_kind();
os << "\n - function_map_index: " << function_map_index();
os << "\n - formal_parameter_count: ";
int formal_parameter_count = internal_formal_parameter_count_with_receiver();
if (formal_parameter_count == kDontAdaptArgumentsSentinel) {
os << "kDontAdaptArgumentsSentinel";
} else {
os << formal_parameter_count;
}
os << "\n - expected_nof_properties: "
<< static_cast<int>(expected_nof_properties());
os << "\n - language_mode: " << language_mode();
if (HasTrustedData()) {
os << "\n - trusted_function_data: "
<< Brief(GetTrustedData(GetIsolateForSandbox(*this)));
} else {
os << "\n - trusted_function_data: <empty>";
}
os << "\n - untrusted_function_data: " << Brief(GetUntrustedData());
os << "\n - code (from function_data): ";
Isolate* isolate;
if (GetIsolateFromHeapObject(*this, &isolate)) {
os << Brief(GetCode(isolate));
} else {
os << kUnavailableString;
}
PrintSourceCode(os);
// Script files are often large, thus only print their {Brief} representation.
os << "\n - script: " << Brief(script());
os << "\n - function token position: " << function_token_position();
os << "\n - start position: " << StartPosition();
os << "\n - end position: " << EndPosition();
os << "\n - scope info: " << Brief(scope_info());
if (HasOuterScopeInfo()) {
os << "\n - outer scope info: " << Brief(GetOuterScopeInfo());
}
os << "\n - length: " << length();
os << "\n - feedback_metadata: ";
if (HasFeedbackMetadata()) {
feedback_metadata()->FeedbackMetadataPrint(os);
} else {
os << "<none>";
}
os << "\n - function_literal_id: " << function_literal_id();
os << "\n - unique_id: " << unique_id();
os << "\n - age: " << age();
os << "\n";
}
void SharedFunctionInfoWrapper::SharedFunctionInfoWrapperPrint(
std::ostream& os) {
PrintHeader(os, "SharedFunctionInfoWrapper");
os << "\n sfi: " << Brief(shared_info());
}
void JSGlobalProxy::JSGlobalProxyPrint(std::ostream& os) {
JSAPIObjectWithEmbedderSlotsPrintHeader(os, *this, "JSGlobalProxy");
JSObjectPrintBody(os, *this);
}
void JSGlobalObject::JSGlobalObjectPrint(std::ostream& os) {
JSAPIObjectWithEmbedderSlotsPrintHeader(os, *this, "JSGlobalObject");
os << "\n - global proxy: " << Brief(global_proxy());
JSObjectPrintBody(os, *this);
}
void PropertyCell::PropertyCellPrint(std::ostream& os) {
PrintHeader(os, "PropertyCell");
os << "\n - name: ";
name()->NamePrint(os);
os << "\n - value: " << Brief(value(kAcquireLoad));
os << "\n - details: ";
PropertyDetails details = property_details(kAcquireLoad);
details.PrintAsSlowTo(os, true);
os << "\n - cell_type: " << details.cell_type();
os << "\n - dependent code: " << dependent_code();
os << "\n";
}
void ContextSidePropertyCell::ContextSidePropertyCellPrint(std::ostream& os) {
PrintHeader(os, "ContextSidePropertyCell");
os << "\n - dependent code: " << dependent_code();
os << "\n - cell_type: " << context_side_property_raw(kAcquireLoad);
os << "\n";
}
void InstructionStream::InstructionStreamPrint(std::ostream& os) {
code(kAcquireLoad)->CodePrint(os);
}
void Code::CodePrint(std::ostream& os, const char* name, Address current_pc) {
// This prints the entire {Code,InstructionStream} composite object.
//
// First, Code:
PrintHeader(os, "Code");
os << "\n - kind: " << CodeKindToString(kind());
if (is_builtin()) {
os << "\n - builtin_id: " << Builtins::name(builtin_id());
}
os << "\n - deoptimization_data_or_interpreter_data: "
<< Brief(raw_deoptimization_data_or_interpreter_data());
os << "\n - position_table: " << Brief(raw_position_table());
os << "\n - parameter_count: " << parameter_count();
os << "\n - instruction_stream: " << Brief(raw_instruction_stream());
os << "\n - instruction_start: "
<< reinterpret_cast<void*>(instruction_start());
os << "\n - is_turbofanned: " << is_turbofanned();
os << "\n - stack_slots: " << stack_slots();
os << "\n - marked_for_deoptimization: " << marked_for_deoptimization();
os << "\n - embedded_objects_cleared: " << embedded_objects_cleared();
os << "\n - can_have_weak_objects: " << can_have_weak_objects();
os << "\n - instruction_size: " << instruction_size();
os << "\n - metadata_size: " << metadata_size();
if (kind() != CodeKind::WASM_TO_JS_FUNCTION) {
os << "\n - inlined_bytecode_size: " << inlined_bytecode_size();
} else {
os << "\n - wasm_js_tagged_parameter_count: "
<< wasm_js_tagged_parameter_count();
os << "\n - wasm_js_first_tagged_parameter: "
<< wasm_js_first_tagged_parameter();
}
os << "\n - osr_offset: " << osr_offset();
os << "\n - handler_table_offset: " << handler_table_offset();
os << "\n - unwinding_info_offset: " << unwinding_info_offset();
if (V8_EMBEDDED_CONSTANT_POOL_BOOL) {
os << "\n - constant_pool_offset: " << constant_pool_offset();
}
os << "\n - code_comments_offset: " << code_comments_offset();
// Then, InstructionStream:
if (has_instruction_stream()) {
Tagged<InstructionStream> istream = instruction_stream();
os << "\n - instruction_stream.relocation_info: "
<< Brief(istream->relocation_info());
os << "\n - instruction_stream.body_size: " << istream->body_size();
}
os << "\n";
// Finally, the disassembly:
#ifdef ENABLE_DISASSEMBLER
os << "\n--- Disassembly: ---\n";
Disassemble(name, os, Isolate::Current(), current_pc);
#endif
}
void CodeWrapper::CodeWrapperPrint(std::ostream& os) {
PrintHeader(os, "CodeWrapper");
os << "\n - code: " << Brief(code(Isolate::Current()));
os << "\n";
}
void Foreign::ForeignPrint(std::ostream& os) {
PrintHeader(os, "Foreign");
os << "\n - foreign address: "
<< reinterpret_cast<void*>(foreign_address_unchecked());
os << "\n";
}
void TrustedForeign::TrustedForeignPrint(std::ostream& os) {
PrintHeader(os, "TrustedForeign");
os << "\n - foreign address: " << reinterpret_cast<void*>(foreign_address());
os << "\n";
}
void AsyncGeneratorRequest::AsyncGeneratorRequestPrint(std::ostream& os) {
PrintHeader(os, "AsyncGeneratorRequest");
const char* mode = "Invalid!";
switch (resume_mode()) {
case JSGeneratorObject::kNext:
mode = ".next()";
break;
case JSGeneratorObject::kReturn:
mode = ".return()";
break;
case JSGeneratorObject::kThrow:
mode = ".throw()";
break;
}
os << "\n - resume mode: " << mode;
os << "\n - value: " << Brief(value());
os << "\n - next: " << Brief(next());
os << "\n";
}
static void PrintModuleFields(Tagged<Module> module, std::ostream& os) {
os << "\n - exports: " << Brief(module->exports());
os << "\n - status: " << module->status();
os << "\n - exception: " << Brief(module->exception());
}
void Module::ModulePrint(std::ostream& os) {
if (IsSourceTextModule(*this)) {
Cast<SourceTextModule>(*this)->SourceTextModulePrint(os);
} else if (IsSyntheticModule(*this)) {
Cast<SyntheticModule>(*this)->SyntheticModulePrint(os);
} else {
UNREACHABLE();
}
}
void SourceTextModule::SourceTextModulePrint(std::ostream& os) {
PrintHeader(os, "SourceTextModule");
PrintModuleFields(*this, os);
os << "\n - sfi/code/info: " << Brief(code());
Tagged<Script> script = GetScript();
os << "\n - script: " << Brief(script);
os << "\n - origin: " << Brief(script->GetNameOrSourceURL());
os << "\n - requested_modules: " << Brief(requested_modules());
os << "\n - import_meta: " << Brief(import_meta(kAcquireLoad));
os << "\n - cycle_root: " << Brief(cycle_root());
os << "\n - has_toplevel_await: " << has_toplevel_await();
os << "\n - async_evaluation_ordinal: " << async_evaluation_ordinal();
os << "\n";
}
void JSModuleNamespace::JSModuleNamespacePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSModuleNamespace");
os << "\n - module: " << Brief(module());
JSObjectPrintBody(os, *this);
}
void PrototypeInfo::PrototypeInfoPrint(std::ostream& os) {
PrintHeader(os, "PrototypeInfo");
os << "\n - module namespace: " << Brief(module_namespace());
os << "\n - prototype users: " << Brief(prototype_users());
os << "\n - registry slot: " << registry_slot();
os << "\n - derived maps: " << Brief(derived_maps());
os << "\n - should_be_fast_map: " << should_be_fast_map();
os << "\n";
}
void ArrayBoilerplateDescription::ArrayBoilerplateDescriptionPrint(
std::ostream& os) {
PrintHeader(os, "ArrayBoilerplateDescription");
os << "\n - elements kind: " << ElementsKindToString(elements_kind());
os << "\n - constant elements: " << Brief(constant_elements());
os << "\n";
}
#if V8_ENABLE_WEBASSEMBLY
void AsmWasmData::AsmWasmDataPrint(std::ostream& os) {
PrintHeader(os, "AsmWasmData");
os << "\n - native module: " << Brief(managed_native_module());
os << "\n - uses bitset: " << uses_bitset()->value();
os << "\n";
}
void WasmTypeInfo::WasmTypeInfoPrint(std::ostream& os) {
PrintHeader(os, "WasmTypeInfo");
os << "\n - canonical type index: " << canonical_type_index();
os << "\n - element type: " << element_type().name();
os << "\n - supertypes: ";
for (int i = 0; i < supertypes_length(); i++) {
os << "\n - " << Brief(supertypes(i));
}
os << "\n";
}
void WasmStruct::WasmStructPrint(std::ostream& os) {
PrintHeader(os, "WasmStruct");
const wasm::CanonicalStructType* struct_type =
wasm::GetTypeCanonicalizer()->LookupStruct(
map()->wasm_type_info()->type_index());
os << "\n - fields (" << struct_type->field_count() << "):";
for (uint32_t i = 0; i < struct_type->field_count(); i++) {
wasm::CanonicalValueType field = struct_type->field(i);
os << "\n - " << field.short_name() << ": ";
uint32_t field_offset = struct_type->field_offset(i);
Address field_address = RawFieldAddress(field_offset);
switch (field.kind()) {
case wasm::kI32:
os << base::ReadUnalignedValue<int32_t>(field_address);
break;
case wasm::kI64:
os << base::ReadUnalignedValue<int64_t>(field_address);
break;
case wasm::kF16:
os << fp16_ieee_to_fp32_value(
base::ReadUnalignedValue<uint16_t>(field_address));
break;
case wasm::kF32:
os << base::ReadUnalignedValue<float>(field_address);
break;
case wasm::kF64:
os << base::ReadUnalignedValue<double>(field_address);
break;
case wasm::kI8:
os << base::ReadUnalignedValue<int8_t>(field_address);
break;
case wasm::kI16:
os << base::ReadUnalignedValue<int16_t>(field_address);
break;
case wasm::kRef:
case wasm::kRefNull:
case wasm::kRtt: {
Tagged_t raw = base::ReadUnalignedValue<Tagged_t>(field_address);
#if V8_COMPRESS_POINTERS
Address obj = V8HeapCompressionScheme::DecompressTagged(address(), raw);
#else
Address obj = raw;
#endif
os << Brief(Tagged<Object>(obj));
break;
}
case wasm::kS128:
os << "0x" << std::hex << std::setfill('0');
#ifdef V8_TARGET_BIG_ENDIAN
for (int j = 0; j < kSimd128Size; j++) {
#else
for (int j = kSimd128Size - 1; j >= 0; j--) {
#endif
os << std::setw(2)
<< static_cast<int>(reinterpret_cast<uint8_t*>(field_address)[j]);
}
os << std::dec << std::setfill(' ');
break;
case wasm::kTop:
case wasm::kBottom:
case wasm::kVoid:
UNREACHABLE();
}
}
os << "\n";
}
void WasmArray::WasmArrayPrint(std::ostream& os) {
PrintHeader(os, "WasmArray");
const wasm::CanonicalValueType element_type =
map()->wasm_type_info()->element_type();
uint32_t len = length();
os << "\n - element type: " << element_type.name();
os << "\n - length: " << len;
Address data_ptr = ptr() + WasmArray::kHeaderSize - kHeapObjectTag;
switch (element_type.kind()) {
case wasm::kI32:
PrintTypedArrayElements(os, reinterpret_cast<int32_t*>(data_ptr), len,
true);
break;
case wasm::kI64:
PrintTypedArrayElements(os, reinterpret_cast<int64_t*>(data_ptr), len,
true);
break;
case wasm::kF16:
PrintTypedArrayElements(os, reinterpret_cast<Fp16Printer*>(data_ptr), len,
true);
break;
case wasm::kF32:
PrintTypedArrayElements(os, reinterpret_cast<float*>(data_ptr), len,
true);
break;
case wasm::kF64:
PrintTypedArrayElements(os, reinterpret_cast<double*>(data_ptr), len,
true);
break;
case wasm::kI8:
PrintTypedArrayElements(os, reinterpret_cast<int8_t*>(data_ptr), len,
true);
break;
case wasm::kI16:
PrintTypedArrayElements(os, reinterpret_cast<int16_t*>(data_ptr), len,
true);
break;
case wasm::kRef:
case wasm::kRefNull: {
os << "\n - elements:";
constexpr uint32_t kWasmArrayMaximumPrintedElements = 5;
for (uint32_t i = 0;
i < std::min(this->length(), kWasmArrayMaximumPrintedElements);
i++) {
os << "\n " << static_cast<int>(i) << " - "
<< Brief(TaggedField<Object>::load(*this, this->element_offset(i)));
}
if (this->length() > kWasmArrayMaximumPrintedElements) os << "\n ...";
break;
}
case wasm::kS128: {
os << "\n - elements:";
constexpr uint32_t kWasmArrayMaximumPrintedElements = 5;
for (uint32_t i = 0;
i < std::min(this->length(), kWasmArrayMaximumPrintedElements);
i++) {
os << "\n " << static_cast<int>(i) << " - 0x" << std::hex
<< std::setfill('0');
#ifdef V8_TARGET_BIG_ENDIAN
for (int j = 0; j < kSimd128Size; j++) {
#else
for (int j = kSimd128Size - 1; j >= 0; j--) {
#endif
os << std::setw(2)
<< static_cast<int>(
reinterpret_cast<uint8_t*>(this->ElementAddress(i))[j]);
}
os << std::dec << std::setfill(' ');
}
if (this->length() > kWasmArrayMaximumPrintedElements) os << "\n ...";
break;
}
case wasm::kRtt:
case wasm::kTop:
case wasm::kBottom:
case wasm::kVoid:
UNREACHABLE();
}
os << "\n";
}
void WasmContinuationObject::WasmContinuationObjectPrint(std::ostream& os) {
PrintHeader(os, "WasmContinuationObject");
os << "\n - parent: " << parent();
os << "\n - jmpbuf: " << jmpbuf();
os << "\n - stack: " << stack();
os << "\n";
}
void WasmSuspenderObject::WasmSuspenderObjectPrint(std::ostream& os) {
PrintHeader(os, "WasmSuspenderObject");
os << "\n - continuation: " << continuation();
os << "\n - parent: " << parent();
os << "\n - promise: " << promise();
os << "\n - resume: " << resume();
os << "\n - reject: " << reject();
os << "\n - state: " << state();
os << "\n";
}
void WasmSuspendingObject::WasmSuspendingObjectPrint(std::ostream& os) {
PrintHeader(os, "WasmSuspendingObject");
os << "\n - callable: " << callable();
os << "\n";
}
void WasmInstanceObject::WasmInstanceObjectPrint(std::ostream& os) {
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
JSObjectPrintHeader(os, *this, "WasmInstanceObject");
os << "\n - trusted_data: " << Brief(trusted_data(isolate));
os << "\n - module_object: " << Brief(module_object());
os << "\n - exports_object: " << Brief(exports_object());
JSObjectPrintBody(os, *this);
os << "\n";
}
void WasmTrustedInstanceData::WasmTrustedInstanceDataPrint(std::ostream& os) {
#define PRINT_WASM_INSTANCE_FIELD(name, convert) \
os << "\n - " #name ": " << convert(name());
#define PRINT_OPTIONAL_WASM_INSTANCE_FIELD(name, convert) \
if (has_##name()) os << "\n - " #name ": " << convert(name());
auto to_void_ptr = [](auto value) {
static_assert(sizeof(value) == kSystemPointerSize);
return reinterpret_cast<void*>(value);
};
PrintHeader(os, "WasmTrustedInstanceData");
PRINT_OPTIONAL_WASM_INSTANCE_FIELD(instance_object, Brief);
PRINT_WASM_INSTANCE_FIELD(native_context, Brief);
PRINT_WASM_INSTANCE_FIELD(shared_part, Brief);
PRINT_WASM_INSTANCE_FIELD(memory_objects, Brief);
PRINT_OPTIONAL_WASM_INSTANCE_FIELD(untagged_globals_buffer, Brief);
PRINT_OPTIONAL_WASM_INSTANCE_FIELD(tagged_globals_buffer, Brief);
PRINT_OPTIONAL_WASM_INSTANCE_FIELD(imported_mutable_globals_buffers, Brief);
#if V8_ENABLE_DRUMBRAKE
PRINT_OPTIONAL_WASM_INSTANCE_FIELD(interpreter_object, Brief);
#endif // V8_ENABLE_DRUMBRAKE
PRINT_OPTIONAL_WASM_INSTANCE_FIELD(tables, Brief);
PRINT_WASM_INSTANCE_FIELD(dispatch_table0, Brief);
PRINT_WASM_INSTANCE_FIELD(dispatch_tables, Brief);
PRINT_WASM_INSTANCE_FIELD(dispatch_table_for_imports, Brief);
PRINT_OPTIONAL_WASM_INSTANCE_FIELD(tags_table, Brief);
PRINT_WASM_INSTANCE_FIELD(func_refs, Brief);
PRINT_WASM_INSTANCE_FIELD(managed_object_maps, Brief);
PRINT_WASM_INSTANCE_FIELD(feedback_vectors, Brief);
PRINT_WASM_INSTANCE_FIELD(well_known_imports, Brief);
PRINT_WASM_INSTANCE_FIELD(memory0_start, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(memory0_size, +);
PRINT_WASM_INSTANCE_FIELD(new_allocation_limit_address, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(new_allocation_top_address, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(old_allocation_limit_address, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(old_allocation_top_address, to_void_ptr);
#if V8_ENABLE_DRUMBRAKE
PRINT_WASM_INSTANCE_FIELD(imported_function_indices, Brief);
#endif // V8_ENABLE_DRUMBRAKE
PRINT_WASM_INSTANCE_FIELD(globals_start, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(imported_mutable_globals, Brief);
PRINT_WASM_INSTANCE_FIELD(jump_table_start, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(data_segment_starts, Brief);
PRINT_WASM_INSTANCE_FIELD(data_segment_sizes, Brief);
PRINT_WASM_INSTANCE_FIELD(element_segments, Brief);
PRINT_WASM_INSTANCE_FIELD(hook_on_function_call_address, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(tiering_budget_array, to_void_ptr);
PRINT_WASM_INSTANCE_FIELD(memory_bases_and_sizes, Brief);
PRINT_WASM_INSTANCE_FIELD(break_on_entry, static_cast<int>);
os << "\n";
#undef PRINT_OPTIONAL_WASM_INSTANCE_FIELD
#undef PRINT_WASM_INSTANCE_FIELD
}
void WasmDispatchTable::WasmDispatchTablePrint(std::ostream& os) {
PrintHeader(os, "WasmDispatchTable");
int len = length();
os << "\n - length: " << len;
os << "\n - capacity: " << capacity();
Tagged<ProtectedWeakFixedArray> uses = protected_uses();
os << "\n - uses: " << Brief(uses);
os << "\n - table type: " << table_type().name();
// Only print up to 55 elements; otherwise print the first 50 and "[...]".
int printed = len > 55 ? 50 : len;
for (int i = 0; i < printed; ++i) {
os << "\n " << std::setw(8) << i << ": sig: " << sig(i)
<< "; target: " << AsHex::Address(target(i).value())
<< "; implicit_arg: " << Brief(implicit_arg(i));
}
if (printed != len) os << "\n [...]";
os << "\n";
}
// Never called directly, as WasmFunctionData is an "abstract" class.
void WasmFunctionData::WasmFunctionDataPrint(std::ostream& os) {
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
os << "\n - func_ref: " << Brief(func_ref());
os << "\n - internal: " << Brief(internal());
os << "\n - wrapper_code: " << Brief(wrapper_code(isolate));
os << "\n - js_promise_flags: " << js_promise_flags();
// No newline here; the caller prints it after printing additional fields.
}
void WasmExportedFunctionData::WasmExportedFunctionDataPrint(std::ostream& os) {
PrintHeader(os, "WasmExportedFunctionData");
WasmFunctionDataPrint(os);
os << "\n - instance_data: " << Brief(instance_data());
os << "\n - function_index: " << function_index();
os << "\n - signature: " << reinterpret_cast<const void*>(sig());
os << "\n - wrapper_budget: " << wrapper_budget()->value();
os << "\n";
}
void WasmJSFunctionData::WasmJSFunctionDataPrint(std::ostream& os) {
PrintHeader(os, "WasmJSFunctionData");
WasmFunctionDataPrint(os);
os << "\n - canonical_sig_index: " << canonical_sig_index();
os << "\n";
}
void WasmResumeData::WasmResumeDataPrint(std::ostream& os) {
PrintHeader(os, "WasmResumeData");
os << "\n - suspender: " << Brief(suspender());
os << '\n';
}
void WasmImportData::WasmImportDataPrint(std::ostream& os) {
PrintHeader(os, "WasmImportData");
os << "\n - native_context: " << Brief(native_context());
os << "\n - callable: " << Brief(callable());
os << "\n - instance_data: ";
if (has_instance_data()) {
os << Brief(instance_data());
} else {
os << "<empty>";
}
os << "\n - suspend: " << static_cast<int>(suspend());
os << "\n - wrapper_budget: " << wrapper_budget();
if (has_call_origin()) {
os << "\n - call_origin: " << Brief(call_origin());
}
os << "\n - sig: " << sig() << " (" << sig()->parameter_count() << " params, "
<< sig()->return_count() << " returns)";
os << "\n";
}
void WasmInternalFunction::WasmInternalFunctionPrint(std::ostream& os) {
PrintHeader(os, "WasmInternalFunction");
os << "\n - call target: "
<< wasm::GetProcessWideWasmCodePointerTable()
->GetEntrypointWithoutSignatureCheck(call_target());
os << "\n - implicit arg: " << Brief(implicit_arg());
os << "\n - external: " << Brief(external());
os << "\n";
}
void WasmFuncRef::WasmFuncRefPrint(std::ostream& os) {
PrintHeader(os, "WasmFuncRef");
IsolateForSandbox isolate = GetIsolateForSandbox(*this);
os << "\n - internal: " << Brief(internal(isolate));
os << "\n";
}
void WasmCapiFunctionData::WasmCapiFunctionDataPrint(std::ostream& os) {
PrintHeader(os, "WasmCapiFunctionData");
WasmFunctionDataPrint(os);
os << "\n - canonical_sig_index: " << canonical_sig_index();
os << "\n - embedder_data: " << Brief(embedder_data());
os << "\n - sig: " << sig();
os << "\n";
}
void WasmExceptionPackage::WasmExceptionPackagePrint(std::ostream& os) {
PrintHeader(os, "WasmExceptionPackage");
os << "\n";
}
void WasmModuleObject::WasmModuleObjectPrint(std::ostream& os) {
PrintHeader(os, "WasmModuleObject");
os << "\n - module: " << module();
os << "\n - native module: " << native_module();
os << "\n - script: " << Brief(script());
os << "\n";
}
void WasmGlobalObject::WasmGlobalObjectPrint(std::ostream& os) {
PrintHeader(os, "WasmGlobalObject");
if (type().is_reference()) {
os << "\n - tagged_buffer: " << Brief(tagged_buffer());
} else {
os << "\n - untagged_buffer: " << Brief(untagged_buffer());
}
os << "\n - offset: " << offset();
os << "\n - raw_type: " << raw_type();
os << "\n - is_mutable: " << is_mutable();
os << "\n - type: " << type();
os << "\n - is_mutable: " << is_mutable();
os << "\n";
}
void WasmValueObject::WasmValueObjectPrint(std::ostream& os) {
PrintHeader(os, "WasmValueObject");
os << "\n - value: " << Brief(value());
os << "\n";
}
#endif // V8_ENABLE_WEBASSEMBLY
void LoadHandler::LoadHandlerPrint(std::ostream& os) {
PrintHeader(os, "LoadHandler");
// TODO(ishell): implement printing based on handler kind
os << "\n - handler: " << Brief(smi_handler());
os << "\n - validity_cell: " << Brief(validity_cell());
int data_count = data_field_count();
if (data_count >= 1) {
os << "\n - data1: " << Brief(data1());
}
if (data_count >= 2) {
os << "\n - data2: " << Brief(data2());
}
if (data_count >= 3) {
os << "\n - data3: " << Brief(data3());
}
os << "\n";
}
void StoreHandler::StoreHandlerPrint(std::ostream& os) {
PrintHeader(os, "StoreHandler");
// TODO(ishell): implement printing based on handler kind
os << "\n - handler: " << Brief(smi_handler());
os << "\n - validity_cell: " << Brief(validity_cell());
int data_count = data_field_count();
if (data_count >= 1) {
os << "\n - data1: " << Brief(data1());
}
if (data_count >= 2) {
os << "\n - data2: " << Brief(data2());
}
if (data_count >= 3) {
os << "\n - data3: " << Brief(data3());
}
os << "\n";
}
void AllocationSite::AllocationSitePrint(std::ostream& os) {
PrintHeader(os, "AllocationSite");
if (this->HasWeakNext()) os << "\n - weak_next: " << Brief(weak_next());
os << "\n - dependent code: " << Brief(dependent_code());
os << "\n - nested site: " << Brief(nested_site());
os << "\n - memento found count: "
<< Brief(Smi::FromInt(memento_found_count()));
os << "\n - memento create count: "
<< Brief(Smi::FromInt(memento_create_count()));
os << "\n - pretenure decision: "
<< Brief(Smi::FromInt(pretenure_decision()));
os << "\n - transition_info: ";
if (!PointsToLiteral()) {
ElementsKind kind = GetElementsKind();
os << "Array allocation with ElementsKind " << ElementsKindToString(kind);
} else if (IsJSArray(boilerplate())) {
os << "Array literal with boilerplate " << Brief(boilerplate());
} else {
os << "Object literal with boilerplate " << Brief(boilerplate());
}
os << "\n";
}
void AllocationMemento::AllocationMementoPrint(std::ostream& os) {
PrintHeader(os, "AllocationMemento");
os << "\n - allocation site: ";
if (IsValid()) {
GetAllocationSite()->AllocationSitePrint(os);
} else {
os << "<invalid>\n";
}
}
void ScriptOrModule::ScriptOrModulePrint(std::ostream& os) {
PrintHeader(os, "ScriptOrModule");
os << "\n - host_defined_options: " << Brief(host_defined_options());
os << "\n - resource_name: " << Brief(resource_name());
}
void Script::ScriptPrint(std::ostream& os) {
PrintHeader(os, "Script");
os << "\n - source: " << Brief(source());
os << "\n - name: " << Brief(name());
os << "\n - line_offset: " << line_offset();
os << "\n - column_offset: " << column_offset();
os << "\n - context data: " << Brief(context_data());
os << "\n - type: " << static_cast<int>(type());
os << "\n - line ends: " << Brief(line_ends());
if (!has_line_ends()) os << " (not set)";
os << "\n - id: " << id();
os << "\n - source_url: " << Brief(source_url());
os << "\n - source_mapping_url: " << Brief(source_mapping_url());
os << "\n - host_defined_options: " << Brief(host_defined_options());
os << "\n - compilation type: " << static_cast<int>(compilation_type());
os << "\n - compiled lazy function positions: "
<< compiled_lazy_function_positions();
bool is_wasm = false;
#if V8_ENABLE_WEBASSEMBLY
if ((is_wasm = (type() == Type::kWasm))) {
if (has_wasm_breakpoint_infos()) {
os << "\n - wasm_breakpoint_infos: " << Brief(wasm_breakpoint_infos());
}
}
#endif // V8_ENABLE_WEBASSEMBLY
if (!is_wasm) {
if (has_eval_from_shared()) {
os << "\n - eval from shared: " << Brief(eval_from_shared());
} else if (is_wrapped()) {
os << "\n - wrapped arguments: " << Brief(wrapped_arguments());
}
os << "\n - eval from position: " << eval_from_position();
}
os << "\n - infos: " << Brief(infos());
os << "\n";
}
void JSTemporalPlainDate::JSTemporalPlainDatePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalPlainDate");
JSObjectPrintBody(os, *this);
}
void JSTemporalPlainTime::JSTemporalPlainTimePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalPlainTime");
JSObjectPrintBody(os, *this);
}
void JSTemporalPlainDateTime::JSTemporalPlainDateTimePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalPlainDateTime");
JSObjectPrintBody(os, *this);
}
void JSTemporalZonedDateTime::JSTemporalZonedDateTimePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalZonedDateTime");
JSObjectPrintBody(os, *this);
}
void JSTemporalDuration::JSTemporalDurationPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalDuration");
JSObjectPrintBody(os, *this);
}
void JSTemporalInstant::JSTemporalInstantPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalInstant");
JSObjectPrintBody(os, *this);
}
void JSTemporalPlainYearMonth::JSTemporalPlainYearMonthPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalPlainYearMonth");
JSObjectPrintBody(os, *this);
}
void JSTemporalPlainMonthDay::JSTemporalPlainMonthDayPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalPlainMonthDay");
JSObjectPrintBody(os, *this);
}
void JSTemporalTimeZone::JSTemporalTimeZonePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalTimeZone");
JSObjectPrintBody(os, *this);
}
void JSTemporalCalendar::JSTemporalCalendarPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSTemporalCalendar");
JSObjectPrintBody(os, *this);
}
void JSRawJson::JSRawJsonPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSRawJson");
JSObjectPrintBody(os, *this);
}
#ifdef V8_INTL_SUPPORT
void JSV8BreakIterator::JSV8BreakIteratorPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSV8BreakIterator");
os << "\n - locale: " << Brief(locale());
os << "\n - break iterator: " << Brief(break_iterator());
os << "\n - unicode string: " << Brief(unicode_string());
os << "\n - bound adopt text: " << Brief(bound_adopt_text());
os << "\n - bound first: " << Brief(bound_first());
os << "\n - bound next: " << Brief(bound_next());
os << "\n - bound current: " << Brief(bound_current());
os << "\n - bound break type: " << Brief(bound_break_type());
os << "\n";
}
void JSCollator::JSCollatorPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSCollator");
os << "\n - icu collator: " << Brief(icu_collator());
os << "\n - bound compare: " << Brief(bound_compare());
JSObjectPrintBody(os, *this);
}
void JSDateTimeFormat::JSDateTimeFormatPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSDateTimeFormat");
os << "\n - locale: " << Brief(locale());
os << "\n - icu locale: " << Brief(icu_locale());
os << "\n - icu simple date format: " << Brief(icu_simple_date_format());
os << "\n - icu date interval format: " << Brief(icu_date_interval_format());
os << "\n - bound format: " << Brief(bound_format());
os << "\n - hour cycle: " << HourCycleAsString(GetIsolate());
JSObjectPrintBody(os, *this);
}
void JSDisplayNames::JSDisplayNamesPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSDisplayNames");
os << "\n - internal: " << Brief(internal());
os << "\n - style: " << StyleAsString(GetIsolate());
os << "\n - fallback: " << FallbackAsString(GetIsolate());
JSObjectPrintBody(os, *this);
}
void JSDurationFormat::JSDurationFormatPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSDurationFormat");
os << "\n - style_flags: " << style_flags();
os << "\n - display_flags: " << display_flags();
os << "\n - icu locale: " << Brief(icu_locale());
os << "\n - icu number formatter: " << Brief(icu_number_formatter());
JSObjectPrintBody(os, *this);
}
void JSListFormat::JSListFormatPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSListFormat");
os << "\n - locale: " << Brief(locale());
os << "\n - style: " << StyleAsString(GetIsolate());
os << "\n - type: " << TypeAsString(GetIsolate());
os << "\n - icu formatter: " << Brief(icu_formatter());
JSObjectPrintBody(os, *this);
}
void JSLocale::JSLocalePrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSLocale");
os << "\n - icu locale: " << Brief(icu_locale());
JSObjectPrintBody(os, *this);
}
void JSNumberFormat::JSNumberFormatPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSNumberFormat");
os << "\n - locale: " << Brief(locale());
os << "\n - icu_number_formatter: " << Brief(icu_number_formatter());
os << "\n - bound_format: " << Brief(bound_format());
JSObjectPrintBody(os, *this);
}
void JSPluralRules::JSPluralRulesPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSPluralRules");
os << "\n - locale: " << Brief(locale());
os << "\n - type: " << TypeAsString(GetIsolate());
os << "\n - icu plural rules: " << Brief(icu_plural_rules());
os << "\n - icu_number_formatter: " << Brief(icu_number_formatter());
JSObjectPrintBody(os, *this);
}
void JSRelativeTimeFormat::JSRelativeTimeFormatPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSRelativeTimeFormat");
os << "\n - locale: " << Brief(locale());
os << "\n - numberingSystem: " << Brief(numberingSystem());
os << "\n - numeric: " << NumericAsString(GetIsolate());
os << "\n - icu formatter: " << Brief(icu_formatter());
os << "\n";
}
void JSSegmentIterator::JSSegmentIteratorPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSSegmentIterator");
os << "\n - icu break iterator: " << Brief(icu_break_iterator());
os << "\n - granularity: " << GranularityAsString(GetIsolate());
os << "\n";
}
void JSSegmenter::JSSegmenterPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSSegmenter");
os << "\n - locale: " << Brief(locale());
os << "\n - granularity: " << GranularityAsString(GetIsolate());
os << "\n - icu break iterator: " << Brief(icu_break_iterator());
JSObjectPrintBody(os, *this);
}
void JSSegments::JSSegmentsPrint(std::ostream& os) {
JSObjectPrintHeader(os, *this, "JSSegments");
os << "\n - icu break iterator: " << Brief(icu_break_iterator());
os << "\n - unicode string: " << Brief(unicode_string());
os << "\n - granularity: " << GranularityAsString(GetIsolate());
JSObjectPrintBody(os, *this);
}
#endif // V8_INTL_SUPPORT
namespace {
void PrintScopeInfoList(Tagged<ScopeInfo> scope_info, std::ostream& os,
const char* list_name, int length) {
DisallowGarbageCollection no_gc;
if (length <= 0) return;
os << "\n - " << list_name;
os << " {\n";
for (auto it : ScopeInfo::IterateLocalNames(scope_info, no_gc)) {
os << " - " << it->index() << ": " << it->name() << "\n";
}
os << " }";
}
} // namespace
void ScopeInfo::ScopeInfoPrint(std::ostream& os) {
PrintHeader(os, "ScopeInfo");
if (this->IsEmpty()) {
os << "\n - empty\n";
return;
}
int flags = Flags();
os << "\n - parameters: " << ParameterCount();
os << "\n - context locals : " << ContextLocalCount();
if (HasInlinedLocalNames()) {
os << "\n - inlined local names";
} else {
os << "\n - local names in a hashtable: "
<< Brief(context_local_names_hashtable());
}
os << "\n - scope type: " << scope_type();
if (SloppyEvalCanExtendVars()) {
os << "\n - sloppy eval";
os << "\n - dependent code: " << Brief(dependent_code());
}
os << "\n - language mode: " << language_mode();
if (is_declaration_scope()) os << "\n - declaration scope";
if (HasReceiver()) {
os << "\n - receiver: " << ReceiverVariableBits::decode(flags);
}
if (ClassScopeHasPrivateBrand()) os << "\n - class scope has private brand";
if (HasSavedClassVariable()) os << "\n - has saved class variable";
if (HasNewTarget()) os << "\n - needs new target";
if (HasFunctionName()) {
os << "\n - function name(" << FunctionVariableBits::decode(flags) << "): ";
ShortPrint(FunctionName(), os);
}
if (IsAsmModule()) os << "\n - asm module";
if (HasSimpleParameters()) os << "\n - simple parameters";
if (PrivateNameLookupSkipsOuterClass())
os << "\n - private name lookup skips outer class";
os << "\n - function kind: " << function_kind();
if (HasOuterScopeInfo()) {
os << "\n - outer scope info: " << Brief(OuterScopeInfo());
}
if (HasFunctionName()) {
os << "\n - function name: " << Brief(FunctionName());
}
if (HasInferredFunctionName()) {
os << "\n - inferred function name: " << Brief(InferredFunctionName());
}
if (HasContextExtensionSlot()) {
os << "\n - has context extension slot";
}
if (HasPositionInfo()) {
os << "\n - start position: " << StartPosition();
os << "\n - end position: " << EndPosition();
}
os << "\n - length: " << length();
if (length() > 0) {
PrintScopeInfoList(*this, os, "context slots", ContextLocalCount());
// TODO(neis): Print module stuff if present.
}
os << "\n";
}
void PreparseData::PreparseDataPrint(std::ostream& os) {
PrintHeader(os, "PreparseData");
os << "\n - data_length: " << data_length();
os << "\n - children_length: " << children_length();
if (data_length() > 0) {
os << "\n - data-start: " << (address() + kDataStartOffset);
}
if (children_length() > 0) {
os << "\n - children-start: " << inner_start_offset();
}
for (int i = 0; i < children_length(); ++i) {
os << "\n - [" << i << "]: " << Brief(get_child(i));
}
os << "\n";
}
void HeapNumber::HeapNumberPrint(std::ostream& os) {
PrintHeader(os, "HeapNumber");
os << "\n - value: ";
HeapNumberShortPrint(os);
os << "\n";
}
#endif // OBJECT_PRINT
void HeapObject::Print() { Print(*this); }
// static
void HeapObject::Print(Tagged<Object> obj) { v8::internal::Print(obj); }
// static
void HeapObject::Print(Tagged<Object> obj, std::ostream& os) {
v8::internal::Print(obj, os);
}
void HeapObject::HeapObjectShortPrint(std::ostream& os) {
PtrComprCageBase cage_base = GetPtrComprCageBase();
os << AsHex::Address(this->ptr()) << " ";
if (IsString(*this, cage_base)) {
HeapStringAllocator allocator;
StringStream accumulator(&allocator);
Cast<String>(*this)->StringShortPrint(&accumulator);
os << accumulator.ToCString().get();
return;
}
if (IsJSObject(*this, cage_base)) {
HeapStringAllocator allocator;
StringStream accumulator(&allocator);
Cast<JSObject>(*this)->JSObjectShortPrint(&accumulator);
os << accumulator.ToCString().get();
return;
}
InstanceType instance_type = map(cage_base)->instance_type();
// Skip invalid trusted objects. Technically it'd be fine to still handle
// them below since we only print the objects, but such an object will
// quickly lead to out-of-sandbox segfaults and so fuzzers will complain.
if (InstanceTypeChecker::IsTrustedObject(instance_type) &&
!OutsideSandboxOrInReadonlySpace(*this)) {
os << "<Invalid TrustedObject (outside trusted space)>\n";
return;
}
switch (instance_type) {
case MAP_TYPE: {
Tagged<Map> map = Cast<Map>(*this);
if (map->instance_type() == MAP_TYPE) {
// This is one of the meta maps, print only relevant fields.
os << "<MetaMap (" << Brief(map->native_context_or_null()) << ")>";
} else {
os << "<Map";
if (map->instance_size() != kVariableSizeSentinel) {
os << "[" << map->instance_size() << "]";
}
os << "(";
if (IsJSObjectMap(map)) {
os << ElementsKindToString(map->elements_kind());
} else {
os << map->instance_type();
}
os << ")>";
}
} break;
case AWAIT_CONTEXT_TYPE: {
os << "<AwaitContext generator= ";
HeapStringAllocator allocator;
StringStream accumulator(&allocator);
ShortPrint(Cast<Context>(*this)->extension(), &accumulator);
os << accumulator.ToCString().get();
os << '>';
break;
}
case BLOCK_CONTEXT_TYPE:
os << "<BlockContext[" << Cast<Context>(*this)->length() << "]>";
break;
case CATCH_CONTEXT_TYPE:
os << "<CatchContext[" << Cast<Context>(*this)->length() << "]>";
break;
case DEBUG_EVALUATE_CONTEXT_TYPE:
os << "<DebugEvaluateContext[" << Cast<Context>(*this)->length() << "]>";
break;
case EVAL_CONTEXT_TYPE:
os << "<EvalContext[" << Cast<Context>(*this)->length() << "]>";
break;
case FUNCTION_CONTEXT_TYPE:
os << "<FunctionContext[" << Cast<Context>(*this)->length() << "]>";
break;
case MODULE_CONTEXT_TYPE:
os << "<ModuleContext[" << Cast<Context>(*this)->length() << "]>";
break;
case NATIVE_CONTEXT_TYPE:
os << "<NativeContext[" << Cast<Context>(*this)->length() << "]>";
break;
case SCRIPT_CONTEXT_TYPE:
os << "<ScriptContext[" << Cast<Context>(*this)->length() << "]>";
break;
case WITH_CONTEXT_TYPE:
os << "<WithContext[" << Cast<Context>(*this)->length() << "]>";
break;
case SCRIPT_CONTEXT_TABLE_TYPE:
os << "<ScriptContextTable["
<< Cast<ScriptContextTable>(*this)->capacity() << "]>";
break;
case HASH_TABLE_TYPE:
os << "<HashTable[" << Cast<FixedArray>(*this)->length() << "]>";
break;
case ORDERED_HASH_MAP_TYPE:
os << "<OrderedHashMap[" << Cast<FixedArray>(*this)->length() << "]>";
break;
case ORDERED_HASH_SET_TYPE:
os << "<OrderedHashSet[" << Cast<FixedArray>(*this)->length() << "]>";
break;
case ORDERED_NAME_DICTIONARY_TYPE:
os << "<OrderedNameDictionary[" << Cast<FixedArray>(*this)->length()
<< "]>";
break;
case NAME_DICTIONARY_TYPE:
os << "<NameDictionary[" << Cast<FixedArray>(*this)->length() << "]>";
break;
case SWISS_NAME_DICTIONARY_TYPE:
os << "<SwissNameDictionary["
<< Cast<SwissNameDictionary>(*this)->Capacity() << "]>";
break;
case GLOBAL_DICTIONARY_TYPE:
os << "<GlobalDictionary[" << Cast<FixedArray>(*this)->length() << "]>";
break;
case NUMBER_DICTIONARY_TYPE:
os << "<NumberDictionary[" << Cast<FixedArray>(*this)->length() << "]>";
break;
case SIMPLE_NUMBER_DICTIONARY_TYPE:
os << "<SimpleNumberDictionary[" << Cast<FixedArray>(*this)->length()
<< "]>";
break;
case FIXED_ARRAY_TYPE:
os << "<FixedArray[" << Cast<FixedArray>(*this)->length() << "]>";
break;
case OBJECT_BOILERPLATE_DESCRIPTION_TYPE:
os << "<ObjectBoilerplateDescription["
<< Cast<ObjectBoilerplateDescription>(*this)->capacity() << "]>";
break;
case FIXED_DOUBLE_ARRAY_TYPE:
os << "<FixedDoubleArray[" << Cast<FixedDoubleArray>(*this)->length()
<< "]>";
break;
case BYTE_ARRAY_TYPE:
os << "<ByteArray[" << Cast<ByteArray>(*this)->length() << "]>";
break;
case BYTECODE_ARRAY_TYPE:
os << "<BytecodeArray[" << Cast<BytecodeArray>(*this)->length() << "]>";
break;
case DESCRIPTOR_ARRAY_TYPE:
os << "<DescriptorArray["
<< Cast<DescriptorArray>(*this)->number_of_descriptors() << "]>";
break;
case WEAK_FIXED_ARRAY_TYPE:
os << "<WeakFixedArray[" << Cast<WeakFixedArray>(*this)->length() << "]>";
break;
case TRUSTED_FIXED_ARRAY_TYPE:
os << "<TrustedFixedArray[" << Cast<TrustedFixedArray>(*this)->length()
<< "]>";
break;
case TRUSTED_WEAK_FIXED_ARRAY_TYPE:
os << "<TrustedWeakFixedArray["
<< Cast<TrustedWeakFixedArray>(*this)->length() << "]>";
break;
case PROTECTED_FIXED_ARRAY_TYPE:
os << "<ProtectedFixedArray["
<< Cast<ProtectedFixedArray>(*this)->length() << "]>";
break;
case PROTECTED_WEAK_FIXED_ARRAY_TYPE:
os << "<ProtectedWeakFixedArray["
<< Cast<ProtectedWeakFixedArray>(*this)->length() << "]>";
break;
case TRANSITION_ARRAY_TYPE:
os << "<TransitionArray[" << Cast<TransitionArray>(*this)->length()
<< "]>";
break;
case PROPERTY_ARRAY_TYPE:
os << "<PropertyArray[" << Cast<PropertyArray>(*this)->length() << "]>";
break;
case FEEDBACK_CELL_TYPE: {
{
ReadOnlyRoots roots = GetReadOnlyRoots();
os << "<FeedbackCell[";
if (map() == roots.no_closures_cell_map()) {
os << "no feedback";
} else if (map() == roots.one_closure_cell_map()) {
os << "one closure";
} else if (map() == roots.many_closures_cell_map()) {
os << "many closures";
} else {
os << "!!!INVALID MAP!!!";
}
os << "]>";
}
break;
}
case CLOSURE_FEEDBACK_CELL_ARRAY_TYPE:
os << "<ClosureFeedbackCellArray["
<< Cast<ClosureFeedbackCellArray>(*this)->length() << "]>";
break;
case FEEDBACK_VECTOR_TYPE:
os << "<FeedbackVector[" << Cast<FeedbackVector>(*this)->length() << "]>";
break;
case FREE_SPACE_TYPE:
os << "<FreeSpace[" << Cast<FreeSpace>(*this)->size(kRelaxedLoad) << "]>";
break;
case PREPARSE_DATA_TYPE: {
Tagged<PreparseData> data = Cast<PreparseData>(*this);
os << "<PreparseData[data=" << data->data_length()
<< " children=" << data->children_length() << "]>";
break;
}
case UNCOMPILED_DATA_WITHOUT_PREPARSE_DATA_TYPE: {
Tagged<UncompiledDataWithoutPreparseData> data =
Cast<UncompiledDataWithoutPreparseData>(*this);
os << "<UncompiledDataWithoutPreparseData (" << data->start_position()
<< ", " << data->end_position() << ")]>";
break;
}
case UNCOMPILED_DATA_WITH_PREPARSE_DATA_TYPE: {
Tagged<UncompiledDataWithPreparseData> data =
Cast<UncompiledDataWithPreparseData>(*this);
os << "<UncompiledDataWithPreparseData (" << data->start_position()
<< ", " << data->end_position()
<< ") preparsed=" << Brief(data->preparse_data()) << ">";
break;
}
case SHARED_FUNCTION_INFO_TYPE: {
Tagged<SharedFunctionInfo> shared = Cast<SharedFunctionInfo>(*this);
std::unique_ptr<char[]> debug_name = shared->DebugNameCStr();
if (debug_name[0] != '\0') {
os << "<SharedFunctionInfo " << debug_name.get() << ">";
} else {
os << "<SharedFunctionInfo>";
}
break;
}
case JS_MESSAGE_OBJECT_TYPE:
os << "<JSMessageObject>";
break;
#define MAKE_STRUCT_CASE(TYPE, Name, name) \
case TYPE: \
os << "<" #Name; \
Cast<Name>(*this)->BriefPrintDetails(os); \
os << ">"; \
break;
STRUCT_LIST(MAKE_STRUCT_CASE)
#undef MAKE_STRUCT_CASE
case ALLOCATION_SITE_TYPE: {
os << "<AllocationSite";
Cast<AllocationSite>(*this)->BriefPrintDetails(os);
os << ">";
break;
}
case SCOPE_INFO_TYPE: {
Tagged<ScopeInfo> scope = Cast<ScopeInfo>(*this);
os << "<ScopeInfo";
if (!scope->IsEmpty()) os << " " << scope->scope_type();
os << ">";
break;
}
case CODE_TYPE: {
Tagged<Code> code = Cast<Code>(*this);
os << "<Code " << CodeKindToString(code->kind());
if (code->is_builtin()) {
os << " " << Builtins::name(code->builtin_id());
}
os << ">";
break;
}
case HOLE_TYPE: {
#define PRINT_HOLE(Type, Value, _) \
if (Is##Type(*this)) { \
os << "<" #Value ">"; \
break; \
}
HOLE_LIST(PRINT_HOLE)
#undef PRINT_HOLE
UNREACHABLE();
}
case INSTRUCTION_STREAM_TYPE: {
Tagged<InstructionStream> istream = Cast<InstructionStream>(*this);
Tagged<Code> code = istream->code(kAcquireLoad);
os << "<InstructionStream " << CodeKindToString(code->kind());
if (code->is_builtin()) {
os << " " << Builtins::name(code->builtin_id());
}
os << ">";
break;
}
case ODDBALL_TYPE: {
if (IsUndefined(*this)) {
os << "<undefined>";
} else if (IsNull(*this)) {
os << "<null>";
} else if (IsTrue(*this)) {
os << "<true>";
} else if (IsFalse(*this)) {
os << "<false>";
} else {
os << "<Odd Oddball: ";
os << Cast<Oddball>(*this)->to_string()->ToCString().get();
os << ">";
}
break;
}
case SYMBOL_TYPE: {
Tagged<Symbol> symbol = Cast<Symbol>(*this);
symbol->SymbolShortPrint(os);
break;
}
case HEAP_NUMBER_TYPE: {
os << "<HeapNumber ";
Cast<HeapNumber>(*this)->HeapNumberShortPrint(os);
os << ">";
break;
}
case BIGINT_TYPE: {
os << "<BigInt ";
Cast<BigInt>(*this)->BigIntShortPrint(os);
os << ">";
break;
}
case JS_PROXY_TYPE:
os << "<JSProxy>";
break;
case FOREIGN_TYPE:
os << "<Foreign>";
break;
case CELL_TYPE: {
os << "<Cell value= ";
HeapStringAllocator allocator;
StringStream accumulator(&allocator);
ShortPrint(Cast<Cell>(*this)->value(), &accumulator);
os << accumulator.ToCString().get();
os << '>';
break;
}
case PROPERTY_CELL_TYPE: {
Tagged<PropertyCell> cell = Cast<PropertyCell>(*this);
os << "<PropertyCell name=";
ShortPrint(cell->name(), os);
os << " value=";
HeapStringAllocator allocator;
StringStream accumulator(&allocator);
ShortPrint(cell->value(kAcquireLoad), &accumulator);
os << accumulator.ToCString().get();
os << '>';
break;
}
case CONTEXT_SIDE_PROPERTY_CELL_TYPE: {
os << "<ContextSidePropertyCell>";
break;
}
case ACCESSOR_INFO_TYPE: {
Tagged<AccessorInfo> info = Cast<AccessorInfo>(*this);
os << "<AccessorInfo ";
os << "name= " << Brief(info->name());
os << ", data= " << Brief(info->data());
os << ">";
break;
}
case FUNCTION_TEMPLATE_INFO_TYPE: {
Tagged<FunctionTemplateInfo> info = Cast<FunctionTemplateInfo>(*this);
os << "<FunctionTemplateInfo ";
Isolate* isolate;
if (GetIsolateFromHeapObject(*this, &isolate)) {
os << "callback= " << reinterpret_cast<void*>(info->callback(isolate));
} else {
os << "callback= " << kUnavailableString;
}
os << ", data= " << Brief(info->callback_data(kAcquireLoad));
os << ", has_side_effects= ";
if (info->has_side_effects()) {
os << "true>";
} else {
os << "false>";
}
break;
}
#if V8_ENABLE_WEBASSEMBLY
case WASM_DISPATCH_TABLE_TYPE:
os << "<WasmDispatchTable[" << Cast<WasmDispatchTable>(*this)->length()
<< "]>";
break;
#endif // V8_ENABLE_WEBASSEMBLY
default:
os << "<Other heap object (" << map()->instance_type() << ")>";
break;
}
}
void HeapNumber::HeapNumberShortPrint(std::ostream& os) {
double val = value();
if (i::IsMinusZero(val)) {
os << "-0.0";
} else if (val == DoubleToInteger(val) && val >= kMinSafeInteger &&
val <= kMaxSafeInteger) {
// Print integer HeapNumbers in safe integer range with max precision: as
// 9007199254740991.0 instead of 9.0072e+15
int64_t i = static_cast<int64_t>(val);
os << i << ".0";
} else {
os << val;
}
}
// TODO(cbruni): remove once the new maptracer is in place.
void Name::NameShortPrint() {
if (IsString(this)) {
PrintF("%s", Cast<String>(this)->ToCString().get());
} else {
DCHECK(IsSymbol(this));
Tagged<Symbol> s = Cast<Symbol>(this);
if (IsUndefined(s->description())) {
PrintF("#<%s>", s->PrivateSymbolToName());
} else {
PrintF("<%s>", Cast<String>(s->description())->ToCString().get());
}
}
}
// TODO(cbruni): remove once the new maptracer is in place.
int Name::NameShortPrint(base::Vector<char> str) {
if (IsString(this)) {
return SNPrintF(str, "%s", Cast<String>(this)->ToCString().get());
} else {
DCHECK(IsSymbol(this));
Tagged<Symbol> s = Cast<Symbol>(this);
if (IsUndefined(s->description())) {
return SNPrintF(str, "#<%s>", s->PrivateSymbolToName());
} else {
return SNPrintF(str, "<%s>",
Cast<String>(s->description())->ToCString().get());
}
}
}
void Symbol::SymbolShortPrint(std::ostream& os) {
os << "<Symbol:";
if (!IsUndefined(description())) {
os << " ";
Tagged<String> description_as_string = Cast<String>(description());
description_as_string->PrintUC16(os, 0, description_as_string->length());
} else {
os << " (" << PrivateSymbolToName() << ")";
}
os << ">";
}
void Map::PrintMapDetails(std::ostream& os) {
DisallowGarbageCollection no_gc;
this->MapPrint(os);
instance_descriptors()->PrintDescriptors(os);
}
void Map::MapPrint(std::ostream& os) {
bool is_meta_map = instance_type() == MAP_TYPE;
#ifdef OBJECT_PRINT
PrintHeader(os, is_meta_map ? "MetaMap" : "Map");
#else
os << (is_meta_map ? "MetaMap=" : "Map=") << reinterpret_cast<void*>(ptr());
#endif
os << "\n - type: " << instance_type();
os << "\n - instance size: ";
if (instance_size() == kVariableSizeSentinel) {
os << "variable";
} else {
os << instance_size();
}
if (is_meta_map) {
// This is one of the meta maps, print only relevant fields.
os << "\n - native_context: " << Brief(native_context_or_null());
os << "\n";
return;
}
if (IsJSObjectMap(*this)) {
os << "\n - inobject properties: " << GetInObjectProperties();
os << "\n - unused property fields: " << UnusedPropertyFields();
}
os << "\n - elements kind: " << ElementsKindToString(elements_kind());
os << "\n - enum length: ";
if (EnumLength() == kInvalidEnumCacheSentinel) {
os << "invalid";
} else {
os << EnumLength();
}
if (is_deprecated()) os << "\n - deprecated_map";
if (is_stable()) os << "\n - stable_map";
if (is_migration_target()) os << "\n - migration_target";
if (is_dictionary_map()) os << "\n - dictionary_map";
if (has_named_interceptor()) os << "\n - named_interceptor";
if (has_indexed_interceptor()) os << "\n - indexed_interceptor";
if (may_have_interesting_properties())
os << "\n - may_have_interesting_properties";
if (is_undetectable()) os << "\n - undetectable";
if (is_callable()) os << "\n - callable";
if (is_constructor()) os << "\n - constructor";
if (has_prototype_slot()) {
os << "\n - has_prototype_slot";
if (has_non_instance_prototype()) os << " (non-instance prototype)";
}
if (is_access_check_needed()) os << "\n - access_check_needed";
if (!is_extensible()) os << "\n - non-extensible";
if (IsContextMap(*this)) {
os << "\n - native context: " << Brief(native_context());
} else if (is_prototype_map()) {
os << "\n - prototype_map";
os << "\n - prototype info: " << Brief(prototype_info());
} else {
os << "\n - back pointer: " << Brief(GetBackPointer());
}
os << "\n - prototype_validity cell: "
<< Brief(prototype_validity_cell(kRelaxedLoad));
os << "\n - instance descriptors " << (owns_descriptors() ? "(own) " : "")
<< "#" << NumberOfOwnDescriptors() << ": "
<< Brief(instance_descriptors());
// Read-only maps can't have transitions, which is fortunate because we need
// the isolate to iterate over the transitions.
if (!HeapLayout::InReadOnlySpace(*this)) {
Isolate* isolate = GetIsolateFromWritableObject(*this);
TransitionsAccessor transitions(isolate, *this);
int nof_transitions = transitions.NumberOfTransitions();
if (nof_transitions > 0 || transitions.HasPrototypeTransitions() ||
transitions.HasSideStepTransitions()) {
os << "\n - transitions #" << nof_transitions << ": ";
Tagged<HeapObject> heap_object;
Tagged<Smi> smi;
if (raw_transitions().ToSmi(&smi)) {
os << Brief(smi);
} else if (raw_transitions().GetHeapObject(&heap_object)) {
os << Brief(heap_object);
}
#ifdef OBJECT_PRINT
transitions.PrintTransitions(os);
#endif // OBJECT_PRINT
}
}
os << "\n - prototype: " << Brief(prototype());
if (has_non_instance_prototype()) {
os << "\n - non-instance prototype: " << Brief(GetNonInstancePrototype());
}
if (!IsContextMap(*this)) {
os << "\n - constructor: " << Brief(GetConstructor());
}
os << "\n - dependent code: " << Brief(dependent_code());
os << "\n - construction counter: " << construction_counter();
os << "\n";
}
void DescriptorArray::PrintDescriptors(std::ostream& os) {
for (InternalIndex i : InternalIndex::Range(number_of_descriptors())) {
Tagged<Name> key = GetKey(i);
os << "\n [" << i.as_int() << "]: ";
#ifdef OBJECT_PRINT
key->NamePrint(os);
#else
ShortPrint(key, os);
#endif
os << " ";
PrintDescriptorDetails(os, i, PropertyDetails::kPrintFull);
}
os << "\n";
}
void DescriptorArray::PrintDescriptorDetails(std::ostream& os,
InternalIndex descriptor,
PropertyDetails::PrintMode mode) {
PropertyDetails details = GetDetails(descriptor);
details.PrintAsFastTo(os, mode);
os << " @ ";
switch (details.location()) {
case PropertyLocation::kField: {
Tagged<FieldType> field_type = GetFieldType(descriptor);
FieldType::PrintTo(field_type, os);
break;
}
case PropertyLocation::kDescriptor:
Tagged<Object> value = GetStrongValue(descriptor);
os << Brief(value);
if (IsAccessorPair(value)) {
Tagged<AccessorPair> pair = Cast<AccessorPair>(value);
os << "(get: " << Brief(pair->getter())
<< ", set: " << Brief(pair->setter()) << ")";
}
break;
}
}
#if defined(DEBUG) || defined(OBJECT_PRINT)
// This method is only meant to be called from gdb for debugging purposes.
// Since the string can also be in two-byte encoding, non-Latin1 characters
// will be ignored in the output.
char* String::ToAsciiArray() {
// Static so that subsequent calls frees previously allocated space.
// This also means that previous results will be overwritten.
static char* buffer = nullptr;
if (buffer != nullptr) delete[] buffer;
buffer = new char[length() + 1];
WriteToFlat(this, reinterpret_cast<uint8_t*>(buffer), 0, length());
buffer[length()] = 0;
return buffer;
}
// static
void TransitionsAccessor::PrintOneTransition(std::ostream& os, Tagged<Name> key,
Tagged<Map> target) {
os << "\n ";
#ifdef OBJECT_PRINT
key->NamePrint(os);
#else
ShortPrint(key, os);
#endif
os << ": ";
ReadOnlyRoots roots = GetReadOnlyRoots();
if (key == roots.nonextensible_symbol()) {
os << "(transition to non-extensible)";
} else if (key == roots.sealed_symbol()) {
os << "(transition to sealed)";
} else if (key == roots.frozen_symbol()) {
os << "(transition to frozen)";
} else if (key == roots.elements_transition_symbol()) {
os << "(transition to " << ElementsKindToString(target->elements_kind())
<< ")";
} else if (key == roots.strict_function_transition_symbol()) {
os << " (transition to strict function)";
} else {
DCHECK(!IsSpecialTransition(roots, key));
os << "(transition to ";
InternalIndex descriptor = target->LastAdded();
Tagged<DescriptorArray> descriptors = target->instance_descriptors();
descriptors->PrintDescriptorDetails(os, descriptor,
PropertyDetails::kForTransitions);
os << ")";
}
os << " -> " << Brief(target);
}
void TransitionArray::PrintInternal(std::ostream& os) {
{
int num_transitions = number_of_transitions();
os << "\n Transitions #" << num_transitions << ":";
for (int i = 0; i < num_transitions; i++) {
Tagged<Name> key = GetKey(i);
Tagged<Map> target;
GetTargetIfExists(i, GetIsolateFromWritableObject(*this), &target);
TransitionsAccessor::PrintOneTransition(os, key, target);
}
}
if (HasPrototypeTransitions()) {
auto prototype_transitions = GetPrototypeTransitions();
int num_transitions = NumberOfPrototypeTransitions(prototype_transitions);
os << "\n Prototype transitions #" << num_transitions << ": "
<< Brief(prototype_transitions);
for (int i = 0; i < num_transitions; i++) {
auto maybe = prototype_transitions->get(
TransitionArray::kProtoTransitionHeaderSize + i);
Tagged<HeapObject> target;
if (maybe.GetHeapObjectIfWeak(&target)) {
auto map = Cast<Map>(target);
os << "\n " << Brief(map->prototype()) << " -> "
<< Brief(Cast<Map>(target));
}
}
}
if (HasSideStepTransitions()) {
auto sidestep_transitions = GetSideStepTransitions();
int num_transitions = sidestep_transitions->length();
os << "\n Sidestep transitions #" << num_transitions << ": "
<< Brief(sidestep_transitions);
for (int i = 0; i < num_transitions; i++) {
SideStepTransition::Kind kind = static_cast<SideStepTransition::Kind>(i);
auto maybe_target = sidestep_transitions->get(i);
os << "\n " << kind << " -> " << Brief(maybe_target);
}
}
}
void TransitionsAccessor::PrintTransitions(std::ostream& os) {
switch (encoding()) {
case kPrototypeInfo:
case kUninitialized:
case kMigrationTarget:
return;
case kWeakRef: {
Tagged<Map> target =
Cast<Map>(raw_transitions_.GetHeapObjectAssumeWeak());
Tagged<Name> key = GetSimpleTransitionKey(target);
PrintOneTransition(os, key, target);
break;
}
case kFullTransitionArray:
return transitions()->PrintInternal(os);
}
}
void TransitionsAccessor::PrintTransitionTree() {
StdoutStream os;
os << (IsUndefined(map_->GetBackPointer()) ? "root_" : "")
<< "map= " << Brief(map_);
DisallowGarbageCollection no_gc;
PrintTransitionTree(os, 0, &no_gc);
os << "\n" << std::flush;
}
void TransitionsAccessor::PrintTransitionTree(
std::ostream& os, int level, DisallowGarbageCollection* no_gc) {
ReadOnlyRoots roots = ReadOnlyRoots(isolate_);
int pos = 0;
int proto_pos = 0;
ForEachTransitionWithKey(
no_gc,
[&](Tagged<Name> key, Tagged<Map> target) {
os << std::endl
<< " " << level << "/" << pos << ":" << std::setw(level * 2 + 2)
<< " ";
pos++;
std::stringstream ss;
ss << Brief(target);
os << std::left << std::setw(50) << ss.str() << ": ";
if (key == roots.nonextensible_symbol()) {
os << "to non-extensible";
} else if (key == roots.sealed_symbol()) {
os << "to sealed ";
} else if (key == roots.frozen_symbol()) {
os << "to frozen";
} else if (key == roots.elements_transition_symbol()) {
os << "to " << ElementsKindToString(target->elements_kind());
} else if (key == roots.strict_function_transition_symbol()) {
os << "to strict function";
} else {
#ifdef OBJECT_PRINT
key->NamePrint(os);
#else
ShortPrint(key, os);
#endif
os << " ";
DCHECK(!IsSpecialTransition(ReadOnlyRoots(isolate_), key));
os << "to ";
InternalIndex descriptor = target->LastAdded();
Tagged<DescriptorArray> descriptors =
target->instance_descriptors(isolate_);
descriptors->PrintDescriptorDetails(os, descriptor,
PropertyDetails::kForTransitions);
}
TransitionsAccessor transitions(isolate_, target);
transitions.PrintTransitionTree(os, level + 1, no_gc);
},
[&](Tagged<Map> target) {
os << std::endl
<< " " << level << "/p" << proto_pos << ":"
<< std::setw(level * 2 + 2) << " ";
proto_pos++;
std::stringstream ss;
ss << Brief(target);
os << std::left << std::setw(50) << ss.str() << ": to proto ";
ShortPrint(target->prototype(), os);
TransitionsAccessor transitions(isolate_, target);
transitions.PrintTransitionTree(os, level + 1, no_gc);
},
[&](SideStepTransition::Kind kind, Tagged<Object> side_step) {
os << std::endl
<< " " << level << "/s:" << std::setw(level * 2 + 2) << " ";
std::stringstream ss;
ss << Brief(side_step);
os << std::left << std::setw(50) << ss.str() << ": sidestep " << kind;
});
}
void JSObject::PrintTransitions(std::ostream& os) {
TransitionsAccessor ta(GetIsolate(), map());
if (ta.NumberOfTransitions() != 0 || ta.HasPrototypeTransitions()) {
os << "\n - transitions";
ta.PrintTransitions(os);
}
}
#endif // defined(DEBUG) || defined(OBJECT_PRINT)
} // namespace v8::internal
namespace {
inline i::Tagged<i::Object> GetObjectFromRaw(void* object) {
i::Address object_ptr = reinterpret_cast<i::Address>(object);
#ifdef V8_COMPRESS_POINTERS
if (RoundDown<i::kPtrComprCageBaseAlignment>(object_ptr) == i::kNullAddress) {
// Try to decompress pointer.
i::Isolate* isolate = i::Isolate::TryGetCurrent();
if (isolate != nullptr) {
object_ptr = i::V8HeapCompressionScheme::DecompressTagged(
isolate, static_cast<i::Tagged_t>(object_ptr));
} else {
i::PtrComprCageBase cage_base = i::GetPtrComprCageBase();
object_ptr = i::V8HeapCompressionScheme::DecompressTagged(
cage_base, static_cast<i::Tagged_t>(object_ptr));
}
}
#endif
return i::Tagged<i::Object>(object_ptr);
}
} // namespace
//
// The following functions are used by our gdb macros.
//
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern i::Tagged<i::Object> _v8_internal_Get_Object(
void* object) {
return GetObjectFromRaw(object);
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_Object(void* object) {
i::AllowHandleDereference allow_deref;
i::AllowHandleUsageOnAllThreads allow_deref_all_threads;
i::Print(GetObjectFromRaw(object));
}
// Used by lldb_visualizers.py to create a representation of a V8 object.
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern std::string _v8_internal_Print_Object_To_String(
void* object) {
std::stringstream strm;
i::Print(GetObjectFromRaw(object), strm);
return strm.str();
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_LoadHandler(void* object) {
#ifdef OBJECT_PRINT
i::StdoutStream os;
i::LoadHandler::PrintHandler(GetObjectFromRaw(object), os);
os << std::endl << std::flush;
#endif
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_StoreHandler(void* object) {
#ifdef OBJECT_PRINT
i::StdoutStream os;
i::StoreHandler::PrintHandler(GetObjectFromRaw(object), os);
os << std::flush;
#endif
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_Code(void* object) {
i::Address address = reinterpret_cast<i::Address>(object);
i::Isolate* isolate = i::Isolate::Current();
#if V8_ENABLE_WEBASSEMBLY
{
if (auto* wasm_code =
i::wasm::GetWasmCodeManager()->LookupCode(isolate, address)) {
i::StdoutStream os;
wasm_code->Disassemble(nullptr, os, address);
return;
}
}
#endif // V8_ENABLE_WEBASSEMBLY
std::optional<i::Tagged<i::Code>> lookup_result =
isolate->heap()->TryFindCodeForInnerPointerForPrinting(address);
if (!lookup_result.has_value()) {
i::PrintF(
"%p is not within the current isolate's code or embedded spaces\n",
object);
return;
}
#if defined(OBJECT_PRINT)
i::StdoutStream os;
lookup_result.value()->CodePrint(os, nullptr, address);
#elif defined(ENABLE_DISASSEMBLER)
i::StdoutStream os;
lookup_result.value()->Disassemble(nullptr, os, isolate, address);
#else
i::Print(lookup_result.value());
#endif
}
#ifdef V8_ENABLE_LEAPTIERING
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_Dispatch_Handle(
uint32_t handle) {
i::IsolateGroup::current()->js_dispatch_table()->PrintEntry(
i::JSDispatchHandle(handle));
}
#endif // V8_ENABLE_LEAPTIERING
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_OnlyCode(void* object,
size_t range_limit) {
i::Address address = reinterpret_cast<i::Address>(object);
i::Isolate* isolate = i::Isolate::Current();
#if V8_ENABLE_WEBASSEMBLY
{
if (i::wasm::GetWasmCodeManager()->LookupCode(isolate, address)) {
i::PrintF("Not supported on wasm code");
return;
}
}
#endif // V8_ENABLE_WEBASSEMBLY
std::optional<i::Tagged<i::Code>> lookup_result =
isolate->heap()->TryFindCodeForInnerPointerForPrinting(address);
if (!lookup_result.has_value()) {
i::PrintF(
"%p is not within the current isolate's code or embedded spaces\n",
object);
return;
}
#if defined(ENABLE_DISASSEMBLER)
i::StdoutStream os;
lookup_result.value()->DisassembleOnlyCode(nullptr, os, isolate, address,
range_limit);
#endif
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_StackTrace() {
i::Isolate* isolate = i::Isolate::Current();
isolate->PrintStack(stdout);
}
namespace _v8_internal_debugonly {
// This class is easy to navigate in a GUI debugger and not intended for
// use elsewhere.
struct StackTraceDebugDetails {
i::StackFrame::Type type;
std::string summary;
std::vector<i::Tagged<i::SharedFunctionInfo>> functions;
std::vector<i::Tagged<i::Object>> expressions;
};
} // namespace _v8_internal_debugonly
// Used by lldb_visualizers.py to create a representation of the V8 stack.
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern std::vector<
_v8_internal_debugonly::StackTraceDebugDetails>
_v8_internal_Expand_StackTrace(i::Isolate* isolate) {
std::vector<_v8_internal_debugonly::StackTraceDebugDetails> stack;
i::DisallowGarbageCollection no_gc;
int frame_index = 0;
for (i::StackFrameIterator it(isolate); !it.done(); it.Advance()) {
i::CommonFrame* frame = i::CommonFrame::cast(it.frame());
_v8_internal_debugonly::StackTraceDebugDetails details;
details.type = frame->type();
if (frame->is_javascript()) {
i::JavaScriptFrame::cast(frame)->GetFunctions(&details.functions);
if (!frame->is_optimized_js()) {
int exprcount = frame->ComputeExpressionsCount();
for (int i = 0; i < exprcount; i++) {
details.expressions.push_back(frame->GetExpression(i));
}
}
}
i::HandleScope scope(isolate);
i::StringStream::ClearMentionedObjectCache(isolate);
i::HeapStringAllocator allocator;
i::StringStream accumulator(&allocator);
frame->Print(&accumulator, i::StackFrame::OVERVIEW, frame_index++);
std::unique_ptr<char[]> overview = accumulator.ToCString();
details.summary = overview.get();
stack.push_back(std::move(details));
}
return stack;
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_TransitionTree(
void* object, bool start_at_root = false) {
i::Tagged<i::Object> o(GetObjectFromRaw(object));
if (!IsMap(o)) {
printf("Please provide a valid Map\n");
} else {
#if defined(DEBUG) || defined(OBJECT_PRINT)
i::Tagged<i::Map> map = i::UncheckedCast<i::Map>(o);
i::TransitionsAccessor transitions(
i::Isolate::Current(),
start_at_root ? map->FindRootMap(GetPtrComprCageBase(map)) : map);
transitions.PrintTransitionTree();
#endif
}
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE extern void _v8_internal_Print_Object_MarkBit(void* object) {
#ifdef OBJECT_PRINT
const auto mark_bit =
v8::internal::MarkBit::From(reinterpret_cast<i::Address>(object));
i::StdoutStream os;
os << "Object " << object << " is "
<< (mark_bit.Get() ? "marked" : "unmarked") << std::endl;
os << " mark-bit cell: " << mark_bit.CellAddress()
<< ", mask: " << mark_bit.Mask() << std::endl;
#endif
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE void _v8_internal_Print_FunctionCallbackInfo(
void* function_callback_info) {
#ifdef OBJECT_PRINT
i::PrintFunctionCallbackInfo(function_callback_info);
#endif
}
V8_DONT_STRIP_SYMBOL
V8_EXPORT_PRIVATE void _v8_internal_Print_PropertyCallbackInfo(
void* property_callback_info) {
#ifdef OBJECT_PRINT
i::PrintPropertyCallbackInfo(property_callback_info);
#endif
}