| // Copyright 2018 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. |
| |
| #ifndef V8_OBJECTS_STACK_FRAME_INFO_H_ |
| #define V8_OBJECTS_STACK_FRAME_INFO_H_ |
| |
| #include "src/objects/struct.h" |
| |
| // Has to be the last include (doesn't have include guards): |
| #include "src/objects/object-macros.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class FrameArray; |
| |
| class StackFrameInfo : public Struct { |
| public: |
| NEVER_READ_ONLY_SPACE |
| DECL_INT_ACCESSORS(line_number) |
| DECL_INT_ACCESSORS(column_number) |
| DECL_INT_ACCESSORS(script_id) |
| DECL_ACCESSORS(script_name, Object) |
| DECL_ACCESSORS(script_name_or_source_url, Object) |
| DECL_ACCESSORS(function_name, Object) |
| DECL_BOOLEAN_ACCESSORS(is_eval) |
| DECL_BOOLEAN_ACCESSORS(is_constructor) |
| DECL_BOOLEAN_ACCESSORS(is_wasm) |
| DECL_INT_ACCESSORS(flag) |
| |
| DECL_CAST(StackFrameInfo) |
| |
| // Dispatched behavior. |
| DECL_PRINTER(StackFrameInfo) |
| DECL_VERIFIER(StackFrameInfo) |
| |
| DEFINE_FIELD_OFFSET_CONSTANTS(Struct::kHeaderSize, |
| TORQUE_GENERATED_STACK_FRAME_INFO_FIELDS) |
| |
| private: |
| // Bit position in the flag, from least significant bit position. |
| static const int kIsEvalBit = 0; |
| static const int kIsConstructorBit = 1; |
| static const int kIsWasmBit = 2; |
| |
| OBJECT_CONSTRUCTORS(StackFrameInfo, Struct); |
| }; |
| |
| // This class is used to lazily initialize a StackFrameInfo object from |
| // a FrameArray plus an index. |
| // The first time any of the Get* or Is* methods is called, a |
| // StackFrameInfo object is allocated and all necessary information |
| // retrieved. |
| class StackTraceFrame : public Struct { |
| public: |
| NEVER_READ_ONLY_SPACE |
| DECL_ACCESSORS(frame_array, Object) |
| DECL_INT_ACCESSORS(frame_index) |
| DECL_ACCESSORS(frame_info, Object) |
| DECL_INT_ACCESSORS(id) |
| |
| DECL_CAST(StackTraceFrame) |
| |
| // Dispatched behavior. |
| DECL_PRINTER(StackTraceFrame) |
| DECL_VERIFIER(StackTraceFrame) |
| |
| // Layout description. |
| #define STACK_FRAME_FIELDS(V) \ |
| V(kFrameArrayOffset, kTaggedSize) \ |
| V(kFrameIndexOffset, kTaggedSize) \ |
| V(kFrameInfoOffset, kTaggedSize) \ |
| V(kIdOffset, kTaggedSize) \ |
| /* Total size. */ \ |
| V(kSize, 0) |
| |
| DEFINE_FIELD_OFFSET_CONSTANTS(Struct::kHeaderSize, STACK_FRAME_FIELDS) |
| #undef STACK_FRAME_FIELDS |
| |
| static int GetLineNumber(Handle<StackTraceFrame> frame); |
| static int GetColumnNumber(Handle<StackTraceFrame> frame); |
| static int GetScriptId(Handle<StackTraceFrame> frame); |
| |
| static Handle<Object> GetFileName(Handle<StackTraceFrame> frame); |
| static Handle<Object> GetScriptNameOrSourceUrl(Handle<StackTraceFrame> frame); |
| static Handle<Object> GetFunctionName(Handle<StackTraceFrame> frame); |
| |
| static bool IsEval(Handle<StackTraceFrame> frame); |
| static bool IsConstructor(Handle<StackTraceFrame> frame); |
| static bool IsWasm(Handle<StackTraceFrame> frame); |
| |
| private: |
| OBJECT_CONSTRUCTORS(StackTraceFrame, Struct); |
| |
| static Handle<StackFrameInfo> GetFrameInfo(Handle<StackTraceFrame> frame); |
| static void InitializeFrameInfo(Handle<StackTraceFrame> frame); |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #include "src/objects/object-macros-undef.h" |
| |
| #endif // V8_OBJECTS_STACK_FRAME_INFO_H_ |