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// 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/deoptimizer.h"
#include "src/execution/frames.h"
#include "src/execution/isolate.h"
#include "src/execution/v8threads.h"
#include "src/objects/objects.h"
#include "src/wasm/wasm-interpreter.h"
namespace v8 {
namespace internal {
class FrameInspector {
public:
FrameInspector(StandardFrame* frame, int inlined_frame_index,
Isolate* isolate);
~FrameInspector(); // NOLINT (modernize-use-equals-default)
int GetParametersCount();
Handle<JSFunction> GetFunction() const { return function_; }
Handle<Script> GetScript() { return script_; }
Handle<Object> GetParameter(int index);
Handle<Object> GetExpression(int index);
int GetSourcePosition() { return source_position_; }
bool IsConstructor() { return is_constructor_; }
Handle<Object> GetContext();
Handle<Object> GetReceiver() { return receiver_; }
Handle<String> GetFunctionName() { return function_name_; }
bool IsWasm();
bool IsJavaScript();
inline JavaScriptFrame* javascript_frame() {
return frame_->is_arguments_adaptor() ? ArgumentsAdaptorFrame::cast(frame_)
: JavaScriptFrame::cast(frame_);
}
int inlined_frame_index() const { return inlined_frame_index_; }
private:
bool ParameterIsShadowedByContextLocal(Handle<ScopeInfo> info,
Handle<String> parameter_name);
StandardFrame* frame_;
int inlined_frame_index_;
std::unique_ptr<DeoptimizedFrameInfo> deoptimized_frame_;
wasm::WasmInterpreter::FramePtr wasm_interpreted_frame_;
Isolate* isolate_;
Handle<Script> script_;
Handle<Object> receiver_;
Handle<JSFunction> function_;
Handle<String> function_name_;
int source_position_ = -1;
bool is_optimized_ = false;
bool is_interpreted_ = false;
bool has_adapted_arguments_ = false;
bool is_constructor_ = false;
DISALLOW_COPY_AND_ASSIGN(FrameInspector);
};
class RedirectActiveFunctions : public ThreadVisitor {
public:
enum class Mode {
kUseOriginalBytecode,
kUseDebugBytecode,
};
explicit RedirectActiveFunctions(SharedFunctionInfo shared, Mode mode);
void VisitThread(Isolate* isolate, ThreadLocalTop* top) override;
private:
SharedFunctionInfo shared_;
Mode mode_;
DisallowHeapAllocation no_gc_;
};
} // namespace internal
} // namespace v8
#endif // V8_DEBUG_DEBUG_FRAMES_H_