v8::internal::DeoptimizedFrameInfo Class Reference

#include <deoptimizer.h>

Inheritance diagram for v8::internal::DeoptimizedFrameInfo:

Collaboration diagram for v8::internal::DeoptimizedFrameInfo:

Public Member Functions
	DeoptimizedFrameInfo (Deoptimizer *deoptimizer, int frame_index, bool has_arguments_adaptor, bool has_construct_stub)
virtual	~DeoptimizedFrameInfo ()
void	Iterate (ObjectVisitor *v)
int	parameters_count ()
int	expression_count ()
JSFunction *	GetFunction ()
Object *	GetContext ()
bool	HasConstructStub ()
Object *	GetParameter (int index)
Object *	GetExpression (int index)
int	GetSourcePosition ()
Public Member Functions inherited from v8::internal::Malloced
void *	operator new (size_t size)
void	operator delete (void *p)

Private Member Functions
void	SetParameter (int index, Object *obj)
void	SetExpression (int index, Object *obj)

Private Attributes
JSFunction *	function_
Object *	context_
bool	has_construct_stub_
int	parameters_count_
int	expression_count_
Object **	parameters_
Object **	expression_stack_
int	source_position_

Friends
class	Deoptimizer

Additional Inherited Members
Static Public Member Functions inherited from v8::internal::Malloced
static void	FatalProcessOutOfMemory ()
static void *	New (size_t size)
static void	Delete (void *p)

Detailed Description

Definition at line 916 of file deoptimizer.h.

Constructor & Destructor Documentation

DeoptimizedFrameInfo()

v8::internal::DeoptimizedFrameInfo::DeoptimizedFrameInfo	(	Deoptimizer *	deoptimizer,
		int	frame_index,
		bool	has_arguments_adaptor,
		bool	has_construct_stub
	)

Definition at line 3592 of file deoptimizer.cc.

                                                                    {
  FrameDescription* output_frame = deoptimizer->output_[frame_index];
  function_ = output_frame->GetFunction();
  context_ = reinterpret_cast<Object*>(output_frame->GetContext());
  has_construct_stub_ = has_construct_stub;
  expression_count_ = output_frame->GetExpressionCount();
  expression_stack_ = new Object*[expression_count_];
  // Get the source position using the unoptimized code.
  Address pc = reinterpret_cast<Address>(output_frame->GetPc());
  Code* code = Code::cast(deoptimizer->isolate()->FindCodeObject(pc));
  source_position_ = code->SourcePosition(pc);
 
  for (int i = 0; i < expression_count_; i++) {
    SetExpression(i, output_frame->GetExpression(i));
  }
 
  if (has_arguments_adaptor) {
    output_frame = deoptimizer->output_[frame_index - 1];
    CHECK_EQ(output_frame->GetFrameType(), StackFrame::ARGUMENTS_ADAPTOR);
  }
 
  parameters_count_ = output_frame->ComputeParametersCount();
  parameters_ = new Object*[parameters_count_];
  for (int i = 0; i < parameters_count_; i++) {
    SetParameter(i, output_frame->GetParameter(i));
  }
}

References v8::internal::compiler::ARGUMENTS_ADAPTOR, CHECK_EQ, v8::internal::FrameDescription::ComputeParametersCount(), context_, expression_count_, expression_stack_, v8::internal::Isolate::FindCodeObject(), function_, v8::internal::FrameDescription::GetContext(), v8::internal::FrameDescription::GetExpression(), v8::internal::FrameDescription::GetExpressionCount(), v8::internal::FrameDescription::GetFrameType(), v8::internal::FrameDescription::GetFunction(), v8::internal::FrameDescription::GetParameter(), v8::internal::FrameDescription::GetPc(), has_construct_stub_, v8::internal::Deoptimizer::isolate(), v8::internal::Deoptimizer::output_, parameters_, parameters_count_, v8::internal::pc, SetExpression(), SetParameter(), source_position_, and v8::internal::Code::SourcePosition().

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~DeoptimizedFrameInfo()

v8::internal::DeoptimizedFrameInfo::~DeoptimizedFrameInfo ( )

virtual

Definition at line 3624 of file deoptimizer.cc.

                                            {
  delete[] expression_stack_;
  delete[] parameters_;
}

References expression_stack_, and parameters_.

Member Function Documentation

expression_count()

int v8::internal::DeoptimizedFrameInfo::expression_count ( )

inline

Definition at line 931 of file deoptimizer.h.

{ return expression_count_; }

References expression_count_.

Referenced by v8::internal::Deoptimizer::DebuggerInspectableFrame(), v8::internal::FrameInspector::expression_count(), GetExpression(), v8::internal::Deoptimizer::MaterializeHeapNumbersForDebuggerInspectableFrame(), and SetExpression().

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GetContext()

Object* v8::internal::DeoptimizedFrameInfo::GetContext ( )

inline

Definition at line 939 of file deoptimizer.h.

{ return context_; }

References context_.

Referenced by v8::internal::FrameInspector::GetContext().

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GetExpression()

Object* v8::internal::DeoptimizedFrameInfo::GetExpression ( int  index )

inline

Definition at line 954 of file deoptimizer.h.

                                   {
    DCHECK(0 <= index && index < expression_count());
    return expression_stack_[index];
  }

References DCHECK, expression_count(), and expression_stack_.

Referenced by v8::internal::FrameInspector::GetExpression().

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GetFunction()

JSFunction* v8::internal::DeoptimizedFrameInfo::GetFunction ( )

inline

Definition at line 934 of file deoptimizer.h.

                            {
    return function_;
  }

References function_.

Referenced by v8::internal::FrameInspector::GetFunction().

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GetParameter()

Object* v8::internal::DeoptimizedFrameInfo::GetParameter ( int  index )

inline

Definition at line 948 of file deoptimizer.h.

                                  {
    DCHECK(0 <= index && index < parameters_count());
    return parameters_[index];
  }

References DCHECK, parameters_, and parameters_count().

Referenced by v8::internal::FrameInspector::GetParameter().

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GetSourcePosition()

int v8::internal::DeoptimizedFrameInfo::GetSourcePosition ( )

inline

Definition at line 959 of file deoptimizer.h.

                          {
    return source_position_;
  }

References source_position_.

Referenced by v8::internal::FrameInspector::GetSourcePosition().

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HasConstructStub()

bool v8::internal::DeoptimizedFrameInfo::HasConstructStub ( )

inline

Definition at line 943 of file deoptimizer.h.

                          {
    return has_construct_stub_;
  }

References has_construct_stub_.

Referenced by v8::internal::FrameInspector::IsConstructor().

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Iterate()

void v8::internal::DeoptimizedFrameInfo::Iterate

(

ObjectVisitor *

v

)

Definition at line 3630 of file deoptimizer.cc.

                                                   {
  v->VisitPointer(bit_cast<Object**>(&function_));
  v->VisitPointer(&context_);
  v->VisitPointers(parameters_, parameters_ + parameters_count_);
  v->VisitPointers(expression_stack_, expression_stack_ + expression_count_);
}

References context_, expression_count_, expression_stack_, function_, parameters_, and parameters_count_.

Referenced by v8::internal::DeoptimizerData::Iterate().

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parameters_count()

int v8::internal::DeoptimizedFrameInfo::parameters_count ( )

inline

Definition at line 928 of file deoptimizer.h.

{ return parameters_count_; }

References parameters_count_.

Referenced by v8::internal::Deoptimizer::DebuggerInspectableFrame(), GetParameter(), v8::internal::FrameInspector::GetParametersCount(), v8::internal::Deoptimizer::MaterializeHeapNumbersForDebuggerInspectableFrame(), and SetParameter().

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SetExpression()

void v8::internal::DeoptimizedFrameInfo::SetExpression ( int  index, Object *  obj  )

inlineprivate

Definition at line 971 of file deoptimizer.h.

                                             {
    DCHECK(0 <= index && index < expression_count());
    expression_stack_[index] = obj;
  }

References DCHECK, expression_count(), and expression_stack_.

Referenced by DeoptimizedFrameInfo(), and v8::internal::Deoptimizer::MaterializeHeapNumbersForDebuggerInspectableFrame().

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SetParameter()

void v8::internal::DeoptimizedFrameInfo::SetParameter ( int  index, Object *  obj  )

inlineprivate

Definition at line 965 of file deoptimizer.h.

                                            {
    DCHECK(0 <= index && index < parameters_count());
    parameters_[index] = obj;
  }

References DCHECK, parameters_, and parameters_count().

Referenced by DeoptimizedFrameInfo(), and v8::internal::Deoptimizer::MaterializeHeapNumbersForDebuggerInspectableFrame().

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Friends And Related Function Documentation

Deoptimizer

friend class Deoptimizer

friend

Definition at line 985 of file deoptimizer.h.

Member Data Documentation

context_

Object* v8::internal::DeoptimizedFrameInfo::context_

private

Definition at line 977 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), GetContext(), and Iterate().

expression_count_

int v8::internal::DeoptimizedFrameInfo::expression_count_

private

Definition at line 980 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), expression_count(), and Iterate().

expression_stack_

Object** v8::internal::DeoptimizedFrameInfo::expression_stack_

private

Definition at line 982 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), GetExpression(), Iterate(), SetExpression(), and ~DeoptimizedFrameInfo().

function_

JSFunction* v8::internal::DeoptimizedFrameInfo::function_

private

Definition at line 976 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), GetFunction(), and Iterate().

has_construct_stub_

bool v8::internal::DeoptimizedFrameInfo::has_construct_stub_

private

Definition at line 978 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), and HasConstructStub().

parameters_

Object** v8::internal::DeoptimizedFrameInfo::parameters_

private

Definition at line 981 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), GetParameter(), Iterate(), SetParameter(), and ~DeoptimizedFrameInfo().

parameters_count_

int v8::internal::DeoptimizedFrameInfo::parameters_count_

private

Definition at line 979 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), Iterate(), and parameters_count().

source_position_

int v8::internal::DeoptimizedFrameInfo::source_position_

private

Definition at line 983 of file deoptimizer.h.

Referenced by DeoptimizedFrameInfo(), and GetSourcePosition().

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The documentation for this class was generated from the following files:

• /mnt/V8SourceCode/src/deoptimizer.h
• /mnt/V8SourceCode/src/deoptimizer.cc