| // Copyright 2015 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_DEBUG_DEBUG_FRAMES_H_ |
| #define V8_DEBUG_DEBUG_FRAMES_H_ |
| |
| #include "src/deoptimizer.h" |
| #include "src/frames.h" |
| #include "src/isolate.h" |
| #include "src/objects.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class FrameInspector { |
| public: |
| FrameInspector(JavaScriptFrame* frame, int inlined_jsframe_index, |
| Isolate* isolate); |
| |
| ~FrameInspector(); |
| |
| int GetParametersCount(); |
| Object* GetFunction(); |
| Object* GetParameter(int index); |
| Object* GetExpression(int index); |
| int GetSourcePosition(); |
| bool IsConstructor(); |
| Object* GetContext(); |
| |
| JavaScriptFrame* GetArgumentsFrame() { return frame_; } |
| void SetArgumentsFrame(JavaScriptFrame* frame); |
| |
| void MaterializeStackLocals(Handle<JSObject> target, |
| Handle<ScopeInfo> scope_info); |
| |
| void MaterializeStackLocals(Handle<JSObject> target, |
| Handle<JSFunction> function); |
| |
| void UpdateStackLocalsFromMaterializedObject(Handle<JSObject> object, |
| Handle<ScopeInfo> scope_info); |
| |
| private: |
| bool ParameterIsShadowedByContextLocal(Handle<ScopeInfo> info, |
| Handle<String> parameter_name); |
| |
| JavaScriptFrame* frame_; |
| DeoptimizedFrameInfo* deoptimized_frame_; |
| Isolate* isolate_; |
| bool is_optimized_; |
| bool is_bottommost_; |
| bool has_adapted_arguments_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FrameInspector); |
| }; |
| |
| |
| class DebugFrameHelper : public AllStatic { |
| public: |
| static SaveContext* FindSavedContextForFrame(Isolate* isolate, |
| JavaScriptFrame* frame); |
| // Advances the iterator to the frame that matches the index and returns the |
| // inlined frame index, or -1 if not found. Skips native JS functions. |
| static int FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, int index); |
| |
| // Helper functions for wrapping and unwrapping stack frame ids. |
| static Smi* WrapFrameId(StackFrame::Id id) { |
| DCHECK(IsAligned(OffsetFrom(id), static_cast<intptr_t>(4))); |
| return Smi::FromInt(id >> 2); |
| } |
| |
| static StackFrame::Id UnwrapFrameId(int wrapped) { |
| return static_cast<StackFrame::Id>(wrapped << 2); |
| } |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_DEBUG_DEBUG_FRAMES_H_ |