ChoiceNode Class Reference

#include <jsregexp.h>

Inheritance diagram for ChoiceNode:

Collaboration diagram for ChoiceNode:

Public Member Functions
	ChoiceNode (int expected_size, Zone *zone)
virtual void	Accept (NodeVisitor *visitor)
void	AddAlternative (GuardedAlternative node)
ZoneList< GuardedAlternative > *	alternatives ()
DispatchTable *	GetTable (bool ignore_case)
virtual void	Emit (RegExpCompiler *compiler, Trace *trace)
virtual int	EatsAtLeast (int still_to_find, int budget, bool not_at_start)
int	EatsAtLeastHelper (int still_to_find, int budget, RegExpNode *ignore_this_node, bool not_at_start)
virtual void	GetQuickCheckDetails (QuickCheckDetails *details, RegExpCompiler *compiler, int characters_filled_in, bool not_at_start)
virtual void	FillInBMInfo (int offset, int budget, BoyerMooreLookahead *bm, bool not_at_start)
bool	being_calculated ()
bool	not_at_start ()
void	set_not_at_start ()
void	set_being_calculated (bool b)
virtual bool	try_to_emit_quick_check_for_alternative (int i)
virtual RegExpNode *	FilterASCII (int depth, bool ignore_case)
Public Member Functions inherited from RegExpNode
	RegExpNode (Zone *zone)
virtual	~RegExpNode ()
bool	EmitQuickCheck (RegExpCompiler *compiler, Trace *trace, bool preload_has_checked_bounds, Label *on_possible_success, QuickCheckDetails *details_return, bool fall_through_on_failure)
virtual int	GreedyLoopTextLength ()
virtual RegExpNode *	GetSuccessorOfOmnivorousTextNode (RegExpCompiler *compiler)
RegExpNode *	replacement ()
RegExpNode *	set_replacement (RegExpNode *replacement)
void	SaveBMInfo (BoyerMooreLookahead *bm, bool not_at_start, int offset)
Label *	label ()
NodeInfo *	info ()
BoyerMooreLookahead *	bm_info (bool not_at_start)
Zone *	zone () const
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)

Protected Member Functions
int	GreedyLoopTextLengthForAlternative (GuardedAlternative *alternative)
Protected Member Functions inherited from RegExpNode
LimitResult	LimitVersions (RegExpCompiler *compiler, Trace *trace)
void	set_bm_info (bool not_at_start, BoyerMooreLookahead *bm)

Protected Attributes
ZoneList< GuardedAlternative > *	alternatives_
Protected Attributes inherited from RegExpNode
RegExpNode *	replacement_

Friends
class	DispatchTableConstructor
class	Analysis

Additional Inherited Members
Static Public Attributes inherited from RegExpNode
static const int	kNodeIsTooComplexForGreedyLoops = -1
static const int	kRecursionBudget = 200
static const int	kMaxCopiesCodeGenerated = 10
Protected Types inherited from RegExpNode
enum	LimitResult { DONE, CONTINUE }

Detailed Description

Definition at line 1065 of file jsregexp.h.

Constructor & Destructor Documentation

ChoiceNode ( int  expected_size, Zone *  zone  )

inlineexplicit

Definition at line 1067 of file jsregexp.h.

Member Function Documentation

virtual void Accept ( NodeVisitor *  visitor )

virtual

Implements RegExpNode.

Reimplemented in LoopChoiceNode.

void AddAlternative ( GuardedAlternative  node )

inline

Definition at line 1075 of file jsregexp.h.

References ChoiceNode::alternatives(), and RegExpNode::zone().

Referenced by RegExpEngine::Compile(), and NegativeLookaheadChoiceNode::NegativeLookaheadChoiceNode().

ZoneList<GuardedAlternative>* alternatives ( )

inline

Definition at line 1078 of file jsregexp.h.

References ChoiceNode::alternatives_.

Referenced by ChoiceNode::AddAlternative(), DispatchTableConstructor::BuildTable(), ChoiceNode::FillInBMInfo(), and Analysis::VisitLoopChoice().

bool being_calculated ( )

inline

Definition at line 1095 of file jsregexp.h.

int EatsAtLeast ( int  still_to_find, int  budget, bool  not_at_start  )

virtual

Implements RegExpNode.

Reimplemented in LoopChoiceNode, and NegativeLookaheadChoiceNode.

Definition at line 2432 of file jsregexp.cc.

References v8::internal::NULL.

Referenced by ChoiceNode::Emit().

int EatsAtLeastHelper	(	int	still_to_find,
		int	budget,
		RegExpNode *	ignore_this_node,
		bool	not_at_start
	)

Definition at line 2402 of file jsregexp.cc.

References RegExpNode::EatsAtLeast().

void Emit ( RegExpCompiler *  compiler, Trace *  trace  )

virtual

Implements RegExpNode.

Reimplemented in LoopChoiceNode.

Definition at line 3928 of file jsregexp.cc.

References Trace::actions(), RegExpMacroAssembler::AdvanceCurrentPosition(), AlternativeGeneration::after, ChoiceNode::alternatives_, RegExpCompiler::ascii(), ASSERT, List< T, ZoneAllocationPolicy >::at(), AlternativeGenerationList::at(), Trace::at_start(), Trace::backtrack(), RegExpMacroAssembler::Bind(), RegExpNode::bm_info(), QuickCheckDetails::cannot_match(), Trace::characters_preloaded(), RegExpMacroAssembler::CheckGreedyLoop(), QuickCheckDetails::Clear(), RegExpNode::CONTINUE, RegExpNode::DONE, ChoiceNode::EatsAtLeast(), RegExpNode::Emit(), RegExpNode::EmitQuickCheck(), BoyerMooreLookahead::EmitSkipInstructions(), AlternativeGeneration::expects_preload, Trace::FALSE_VALUE, RegExpNode::FillInBMInfo(), Trace::Flush(), Trace::flush_budget(), RegExpNode::GetSuccessorOfOmnivorousTextNode(), RegExpMacroAssembler::GoTo(), ChoiceNode::GreedyLoopTextLengthForAlternative(), GuardedAlternative::guards(), Trace::InvalidateCurrentCharacter(), Trace::is_trivial(), v8::internal::kMaxLookaheadForBoyerMoore, RegExpNode::kNodeIsTooComplexForGreedyLoops, RegExpNode::kRecursionBudget, RegExpNode::LimitVersions(), RegExpCompiler::macro_assembler(), Trace::mentions_reg(), v8::internal::Min(), GuardedAlternative::node(), ChoiceNode::not_at_start(), v8::internal::NULL, AlternativeGeneration::possible_success, RegExpMacroAssembler::PushCurrentPosition(), AlternativeGeneration::quick_check_details, Trace::quick_check_performed(), Trace::set_at_start(), Trace::set_backtrack(), Trace::set_bound_checked_up_to(), QuickCheckDetails::set_characters(), Trace::set_characters_preloaded(), Trace::set_flush_budget(), Trace::set_loop_label(), Trace::set_quick_check_performed(), Trace::set_stop_node(), Trace::stop_node(), ChoiceNode::try_to_emit_quick_check_for_alternative(), and RegExpNode::zone().

Referenced by LoopChoiceNode::Emit().

void FillInBMInfo ( int  offset, int  budget, BoyerMooreLookahead *  bm, bool  not_at_start  )

virtual

Reimplemented from RegExpNode.

Reimplemented in LoopChoiceNode, and NegativeLookaheadChoiceNode.

Definition at line 5803 of file jsregexp.cc.

References ChoiceNode::alternatives(), List< T, ZoneAllocationPolicy >::at(), RegExpNode::FillInBMInfo(), GuardedAlternative::guards(), GuardedAlternative::node(), v8::internal::NULL, RegExpNode::SaveBMInfo(), and BoyerMooreLookahead::SetRest().

Referenced by LoopChoiceNode::FillInBMInfo().

RegExpNode * FilterASCII ( int  depth, bool  ignore_case  )

virtual

Reimplemented from RegExpNode.

Reimplemented in LoopChoiceNode, and NegativeLookaheadChoiceNode.

Definition at line 2885 of file jsregexp.cc.

References List< T, ZoneAllocationPolicy >::Add(), ASSERT, RegExpNode::FilterASCII(), GuardedAlternative::guards(), v8::internal::info, GuardedAlternative::node(), and v8::internal::NULL.

Referenced by LoopChoiceNode::FilterASCII().

void GetQuickCheckDetails ( QuickCheckDetails *  details, RegExpCompiler *  compiler, int  characters_filled_in, bool  not_at_start  )

virtual

Implements RegExpNode.

Reimplemented in LoopChoiceNode, and NegativeLookaheadChoiceNode.

Definition at line 2986 of file jsregexp.cc.

References ASSERT, QuickCheckDetails::characters(), RegExpNode::GetQuickCheckDetails(), and QuickCheckDetails::Merge().

Referenced by LoopChoiceNode::GetQuickCheckDetails().

DispatchTable * GetTable

(

bool

ignore_case

)

Definition at line 962 of file jsregexp.cc.

References DispatchTableConstructor::BuildTable(), and v8::internal::NULL.

int GreedyLoopTextLengthForAlternative ( GuardedAlternative *  alternative )

protected

Definition at line 3476 of file jsregexp.cc.

References RegExpNode::GreedyLoopTextLength(), RegExpCompiler::kMaxRecursion, GuardedAlternative::node(), and SeqRegExpNode::on_success().

Referenced by ChoiceNode::Emit().

bool not_at_start ( )

inline

Definition at line 1096 of file jsregexp.h.

Referenced by ChoiceNode::Emit().

void set_being_calculated ( bool  b )

inline

Definition at line 1098 of file jsregexp.h.

Referenced by DispatchTableConstructor::BuildTable().

void set_not_at_start ( )

inline

Definition at line 1097 of file jsregexp.h.

virtual bool try_to_emit_quick_check_for_alternative ( int  i )

inlinevirtual

Reimplemented in NegativeLookaheadChoiceNode.

Definition at line 1099 of file jsregexp.h.

Referenced by ChoiceNode::Emit().

Friends And Related Function Documentation

friend class Analysis

friend

Definition at line 1108 of file jsregexp.h.

friend class DispatchTableConstructor

friend

Definition at line 1107 of file jsregexp.h.

Field Documentation

ZoneList<GuardedAlternative>* alternatives_

protected

Definition at line 1104 of file jsregexp.h.

Referenced by ChoiceNode::alternatives(), ChoiceNode::Emit(), and NegativeLookaheadChoiceNode::FillInBMInfo().

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

• src/jsregexp.h
• src/jsregexp.cc