v8::internal::compiler::LoopBuilder Class Reference

#include <control-builders.h>

Inheritance diagram for v8::internal::compiler::LoopBuilder:

Collaboration diagram for v8::internal::compiler::LoopBuilder:

Public Member Functions
	LoopBuilder (StructuredGraphBuilder *builder)
void	BeginLoop ()
void	EndBody ()
void	EndLoop ()
virtual void	Continue ()
virtual void	Break ()
void	BreakUnless (Node *condition)
Public Member Functions inherited from v8::internal::compiler::ControlBuilder
	ControlBuilder (StructuredGraphBuilder *builder)
virtual	~ControlBuilder ()

Private Attributes
Environment *	loop_environment_
Environment *	continue_environment_
Environment *	break_environment_

Additional Inherited Members
Protected Types inherited from v8::internal::compiler::ControlBuilder
typedef StructuredGraphBuilder	Builder
typedef StructuredGraphBuilder::Environment	Environment
Protected Member Functions inherited from v8::internal::compiler::ControlBuilder
Zone *	zone () const
Environment *	environment ()
void	set_environment (Environment *env)
Protected Attributes inherited from v8::internal::compiler::ControlBuilder
Builder *	builder_

Detailed Description

Definition at line 64 of file control-builders.h.

Constructor & Destructor Documentation

LoopBuilder()

v8::internal::compiler::LoopBuilder::LoopBuilder ( StructuredGraphBuilder *  builder )

inlineexplicit

Definition at line 66 of file control-builders.h.

      : ControlBuilder(builder),
        loop_environment_(NULL),
        continue_environment_(NULL),
        break_environment_(NULL) {}

Member Function Documentation

BeginLoop()

void v8::internal::compiler::LoopBuilder::BeginLoop

(

)

Definition at line 35 of file control-builders.cc.

                            {
  builder_->NewLoop();
  loop_environment_ = environment()->CopyForLoop();
  continue_environment_ = environment()->CopyAsUnreachable();
  break_environment_ = environment()->CopyAsUnreachable();
}

References break_environment_, v8::internal::compiler::ControlBuilder::builder_, continue_environment_, v8::internal::compiler::StructuredGraphBuilder::Environment::CopyAsUnreachable(), v8::internal::compiler::StructuredGraphBuilder::Environment::CopyForLoop(), v8::internal::compiler::ControlBuilder::environment(), loop_environment_, and v8::internal::compiler::StructuredGraphBuilder::NewLoop().

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Break()

void v8::internal::compiler::LoopBuilder::Break ( )

virtual

Reimplemented from v8::internal::compiler::ControlBuilder.

Definition at line 49 of file control-builders.cc.

                        {
  break_environment_->Merge(environment());
  environment()->MarkAsUnreachable();
}

References break_environment_, v8::internal::compiler::ControlBuilder::environment(), v8::internal::compiler::StructuredGraphBuilder::Environment::MarkAsUnreachable(), and v8::internal::compiler::StructuredGraphBuilder::Environment::Merge().

Referenced by BreakUnless().

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BreakUnless()

void v8::internal::compiler::LoopBuilder::BreakUnless

(

Node *

condition

)

Definition at line 67 of file control-builders.cc.

                                             {
  IfBuilder control_if(builder_);
  control_if.If(condition);
  control_if.Then();
  control_if.Else();
  Break();
  control_if.End();
}

References Break(), v8::internal::compiler::ControlBuilder::builder_, v8::internal::compiler::IfBuilder::Else(), v8::internal::compiler::IfBuilder::End(), v8::internal::compiler::IfBuilder::If(), and v8::internal::compiler::IfBuilder::Then().

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Continue()

void v8::internal::compiler::LoopBuilder::Continue ( )

virtual

Reimplemented from v8::internal::compiler::ControlBuilder.

Definition at line 43 of file control-builders.cc.

                           {
  continue_environment_->Merge(environment());
  environment()->MarkAsUnreachable();
}

References continue_environment_, v8::internal::compiler::ControlBuilder::environment(), v8::internal::compiler::StructuredGraphBuilder::Environment::MarkAsUnreachable(), and v8::internal::compiler::StructuredGraphBuilder::Environment::Merge().

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EndBody()

void v8::internal::compiler::LoopBuilder::EndBody

(

)

Definition at line 55 of file control-builders.cc.

                          {
  continue_environment_->Merge(environment());
  set_environment(continue_environment_);
}

References continue_environment_, v8::internal::compiler::ControlBuilder::environment(), v8::internal::compiler::StructuredGraphBuilder::Environment::Merge(), and v8::internal::compiler::ControlBuilder::set_environment().

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EndLoop()

void v8::internal::compiler::LoopBuilder::EndLoop

(

)

Definition at line 61 of file control-builders.cc.

                          {
  loop_environment_->Merge(environment());
  set_environment(break_environment_);
}

References break_environment_, v8::internal::compiler::ControlBuilder::environment(), loop_environment_, v8::internal::compiler::StructuredGraphBuilder::Environment::Merge(), and v8::internal::compiler::ControlBuilder::set_environment().

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Member Data Documentation

break_environment_

Environment* v8::internal::compiler::LoopBuilder::break_environment_

private

Definition at line 87 of file control-builders.h.

Referenced by BeginLoop(), Break(), and EndLoop().

continue_environment_

Environment* v8::internal::compiler::LoopBuilder::continue_environment_

private

Definition at line 86 of file control-builders.h.

Referenced by BeginLoop(), Continue(), and EndBody().

loop_environment_

Environment* v8::internal::compiler::LoopBuilder::loop_environment_

private

Definition at line 85 of file control-builders.h.

Referenced by BeginLoop(), and EndLoop().

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

• /mnt/V8SourceCode/src/compiler/control-builders.h
• /mnt/V8SourceCode/src/compiler/control-builders.cc