Variable Class Reference

#include <variables.h>

Inheritance diagram for Variable:

Collaboration diagram for Variable:

Public Types
enum	Kind { NORMAL, THIS, ARGUMENTS }
enum	Location {   UNALLOCATED, PARAMETER, LOCAL, CONTEXT,   LOOKUP }

Public Member Functions
	Variable (Scope *scope, Handle< String > name, VariableMode mode, bool is_valid_lhs, Kind kind, InitializationFlag initialization_flag, Interface *interface=Interface::NewValue())
bool	IsValidLeftHandSide ()
Scope *	scope () const
Handle< String >	name () const
VariableMode	mode () const
bool	has_forced_context_allocation () const
void	ForceContextAllocation ()
bool	is_used ()
void	set_is_used (bool flag)
int	initializer_position ()
void	set_initializer_position (int pos)
bool	IsVariable (Handle< String > n) const
bool	IsUnallocated () const
bool	IsParameter () const
bool	IsStackLocal () const
bool	IsStackAllocated () const
bool	IsContextSlot () const
bool	IsLookupSlot () const
bool	IsGlobalObjectProperty () const
bool	is_dynamic () const
bool	is_const_mode () const
bool	binding_needs_init () const
bool	is_this () const
bool	is_arguments () const
bool	is_possibly_eval (Isolate *isolate) const
Variable *	local_if_not_shadowed () const
void	set_local_if_not_shadowed (Variable *local)
Location	location () const
int	index () const
InitializationFlag	initialization_flag () const
Interface *	interface () const
void	AllocateTo (Location location, int index)
Public Member Functions inherited from ZoneObject
	INLINE (void *operator new(size_t size, Zone *zone))
void	operator delete (void *, size_t)
void	operator delete (void *pointer, Zone *zone)

Static Public Member Functions
static const char *	Mode2String (VariableMode mode)
static int	CompareIndex (Variable *const *v, Variable *const *w)

Detailed Description

Definition at line 42 of file variables.h.

Member Enumeration Documentation

enum Kind

Enumerator
NORMAL
THIS
ARGUMENTS

Definition at line 44 of file variables.h.

enum Location

Enumerator
UNALLOCATED
PARAMETER
LOCAL
CONTEXT
LOOKUP

Definition at line 50 of file variables.h.

Constructor & Destructor Documentation

Variable	(	Scope *	scope,
		Handle< String >	name,
		VariableMode	mode,
		bool	is_valid_lhs,
		Kind	kind,
		InitializationFlag	initialization_flag,
		Interface *	interface = Interface::NewValue()
	)

Definition at line 58 of file variables.cc.

References ASSERT, v8::internal::kNeedsInitialization, and v8::internal::VAR.

Member Function Documentation

void AllocateTo ( Location  location, int  index  )

inline

Definition at line 153 of file variables.h.

References Variable::index(), and Variable::location().

Referenced by Scope::AllocateHeapSlot(), Scope::AllocateParameterLocals(), Scope::AllocateStackSlot(), Scope::Initialize(), Scope::LocalLookup(), Scope::LookupFunctionVar(), and Scope::NonLocal().

bool binding_needs_init ( ) const

inline

Definition at line 125 of file variables.h.

References v8::internal::kNeedsInitialization.

int CompareIndex ( Variable *const *  v, Variable *const *  w  )

static

Definition at line 94 of file variables.cc.

Referenced by ScopeInfo::Create().

void ForceContextAllocation ( )

inline

Definition at line 101 of file variables.h.

References ASSERT, and v8::internal::TEMPORARY.

Referenced by Scope::AllocateParameterLocals(), and Scope::LookupRecursive().

bool has_forced_context_allocation ( ) const

inline

Definition at line 98 of file variables.h.

Referenced by Scope::MustAllocate(), and Scope::MustAllocateInContext().

int index ( ) const

inline

Definition at line 147 of file variables.h.

Referenced by Variable::AllocateTo(), ModuleInfo::Create(), and V8_FINAL< kOperandKind, kNumCachedOperands >::IndexFor().

InitializationFlag initialization_flag ( ) const

inline

Definition at line 148 of file variables.h.

Referenced by ScopeInfo::Create().

int initializer_position ( )

inline

Definition at line 108 of file variables.h.

Interface* interface ( ) const

inline

Definition at line 151 of file variables.h.

Referenced by Scope::ResolveVariable(), and Rewriter::Rewrite().

bool is_arguments ( ) const

inline

Definition at line 130 of file variables.h.

References Variable::ARGUMENTS.

Referenced by HOptimizedGraphBuilder::IsEligibleForEnvironmentLivenessAnalysis().

bool is_const_mode ( ) const

inline

Definition at line 124 of file variables.h.

References v8::internal::IsImmutableVariableMode().

Referenced by Scope::ResolveVariable().

bool is_dynamic ( ) const

inline

Definition at line 123 of file variables.h.

References v8::internal::IsDynamicVariableMode().

Referenced by Scope::ResolveVariable().

bool is_possibly_eval ( Isolate *  isolate ) const

inline

Definition at line 133 of file variables.h.

References Isolate::factory(), and Variable::IsVariable().

bool is_this ( ) const

inline

Definition at line 129 of file variables.h.

References Variable::THIS.

Referenced by HOptimizedGraphBuilder::IsEligibleForEnvironmentLivenessAnalysis(), Variable::IsVariable(), Scope::MustAllocate(), and HOptimizedGraphBuilder::VisitDelete().

bool is_used ( )

inline

Definition at line 105 of file variables.h.

Referenced by Scope::CollectStackAndContextLocals(), ScopeInfo::Create(), and Scope::MustAllocate().

bool IsContextSlot ( ) const

inline

Definition at line 119 of file variables.h.

References Variable::CONTEXT.

Referenced by Scope::AllocateParameterLocals(), Scope::CollectStackAndContextLocals(), ScopeInfo::Create(), V8_FINAL< kOperandKind, kNumCachedOperands >::HLoadContextSlot(), and HOptimizedGraphBuilder::VisitDelete().

bool IsGlobalObjectProperty

(

)

const

Definition at line 85 of file variables.cc.

References Scope::is_global_scope(), v8::internal::IsDeclaredVariableMode(), v8::internal::IsDynamicVariableMode(), v8::internal::IsLexicalVariableMode(), and v8::internal::NULL.

Referenced by Scope::MustAllocate(), and Scope::ResolveVariable().

bool IsLookupSlot ( ) const

inline

Definition at line 120 of file variables.h.

References Variable::LOOKUP.

bool IsParameter ( ) const

inline

Definition at line 116 of file variables.h.

References Variable::PARAMETER.

Referenced by Scope::AllocateParameterLocals(), V8_FINAL< kOperandKind, kNumCachedOperands >::IndexFor(), and Variable::IsStackAllocated().

bool IsStackAllocated ( ) const

inline

Definition at line 118 of file variables.h.

References Variable::IsParameter(), and Variable::IsStackLocal().

Referenced by V8_FINAL< kOperandKind, kNumCachedOperands >::IndexFor(), HOptimizedGraphBuilder::SetUpScope(), and HOptimizedGraphBuilder::VisitDelete().

bool IsStackLocal ( ) const

inline

Definition at line 117 of file variables.h.

References Variable::LOCAL.

Referenced by Scope::AllocateNonParameterLocal(), Scope::CollectStackAndContextLocals(), ScopeInfo::Create(), and Variable::IsStackAllocated().

bool IsUnallocated ( ) const

inline

Definition at line 115 of file variables.h.

References Variable::UNALLOCATED.

Referenced by Scope::AllocateNonParameterLocal(), Scope::AllocateParameterLocals(), and HOptimizedGraphBuilder::VisitDelete().

bool IsValidLeftHandSide ( )

inline

Definition at line 88 of file variables.h.

bool IsVariable ( Handle< String >  n ) const

inline

Definition at line 111 of file variables.h.

References Variable::is_this(), and Variable::name().

Referenced by Scope::AllocateNonParameterLocal(), and Variable::is_possibly_eval().

Variable* local_if_not_shadowed ( ) const

inline

Definition at line 137 of file variables.h.

References ASSERT, v8::internal::DYNAMIC_LOCAL, and v8::internal::NULL.

Location location ( ) const

inline

Definition at line 146 of file variables.h.

Referenced by Variable::AllocateTo(), and Expression::IsUndefinedLiteral().

VariableMode mode ( ) const

inline

Definition at line 97 of file variables.h.

Referenced by Scope::CheckConflictingVarDeclarations(), ModuleInfo::Create(), ScopeInfo::Create(), V8_FINAL< kOperandKind, kNumCachedOperands >::HLoadContextSlot(), and Scope::MustAllocateInContext().

const char * Mode2String ( VariableMode  mode )

static

Definition at line 40 of file variables.cc.

References v8::internal::CONST, v8::internal::CONST_LEGACY, v8::internal::DYNAMIC, v8::internal::DYNAMIC_GLOBAL, v8::internal::DYNAMIC_LOCAL, v8::internal::INTERNAL, v8::internal::LET, v8::internal::MODULE, v8::internal::NULL, v8::internal::TEMPORARY, UNREACHABLE, and v8::internal::VAR.

Handle<String> name ( ) const

inline

Definition at line 96 of file variables.h.

Referenced by ScopeInfo::Create(), Variable::IsVariable(), Scope::MustAllocate(), Scope::ResolveVariable(), and Rewriter::Rewrite().

Scope* scope ( ) const

inline

Definition at line 94 of file variables.h.

Referenced by Scope::AllocateNonParameterLocal(), and Scope::AllocateParameterLocals().

void set_initializer_position ( int  pos )

inline

Definition at line 109 of file variables.h.

void set_is_used ( bool  flag )

inline

Definition at line 106 of file variables.h.

References v8::internal::flag.

Referenced by Scope::MustAllocate().

void set_local_if_not_shadowed ( Variable *  local )

inline

Definition at line 142 of file variables.h.

Referenced by Scope::ResolveVariable().

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

• src/variables.h
• src/variables.cc