RegExpNode Class Reference

#include <jsregexp.h>

Inheritance diagram for RegExpNode:

Collaboration diagram for RegExpNode:

Public Member Functions
	RegExpNode (Zone *zone)
virtual	~RegExpNode ()
virtual void	Accept (NodeVisitor *visitor)=0
virtual void	Emit (RegExpCompiler *compiler, Trace *trace)=0
virtual int	EatsAtLeast (int still_to_find, int recursion_depth, bool not_at_start)=0
bool	EmitQuickCheck (RegExpCompiler *compiler, Trace *trace, bool preload_has_checked_bounds, Label *on_possible_success, QuickCheckDetails *details_return, bool fall_through_on_failure)
virtual void	GetQuickCheckDetails (QuickCheckDetails *details, RegExpCompiler *compiler, int characters_filled_in, bool not_at_start)=0
virtual int	GreedyLoopTextLength ()
virtual RegExpNode *	GetSuccessorOfOmnivorousTextNode (RegExpCompiler *compiler)
virtual void	FillInBMInfo (int offset, int recursion_depth, int budget, BoyerMooreLookahead *bm, bool not_at_start)
virtual RegExpNode *	FilterASCII (int depth)
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)

Static Public Attributes
static const int	kNodeIsTooComplexForGreedyLoops = -1
static const int	kFillInBMBudget = 200
static const int	kMaxCopiesCodeGenerated = 10

Protected Types
enum	LimitResult { DONE, CONTINUE }

Protected Member Functions
LimitResult	LimitVersions (RegExpCompiler *compiler, Trace *trace)
void	set_bm_info (bool not_at_start, BoyerMooreLookahead *bm)

Protected Attributes
RegExpNode *	replacement_

Detailed Description

Definition at line 568 of file jsregexp.h.

Member Enumeration Documentation

enum LimitResult

protected

Enumerator
DONE
CONTINUE

Definition at line 668 of file jsregexp.h.

Constructor & Destructor Documentation

RegExpNode ( Zone *  zone )

inlineexplicit

Definition at line 570 of file jsregexp.h.

References v8::internal::NULL.

~RegExpNode ( )

virtual

Definition at line 2313 of file jsregexp.cc.

Member Function Documentation

virtual void Accept ( NodeVisitor *  visitor )

pure virtual

Implemented in LoopChoiceNode, ChoiceNode, EndNode, BackReferenceNode, AssertionNode, TextNode, and ActionNode.

Referenced by Analysis::EnsureAnalyzed().

BoyerMooreLookahead* bm_info ( bool  not_at_start )

inline

Definition at line 661 of file jsregexp.h.

Referenced by ChoiceNode::Emit().

virtual int EatsAtLeast ( int  still_to_find, int  recursion_depth, bool  not_at_start  )

pure virtual

Implemented in LoopChoiceNode, NegativeLookaheadChoiceNode, ChoiceNode, EndNode, BackReferenceNode, AssertionNode, TextNode, and ActionNode.

Referenced by NegativeLookaheadChoiceNode::EatsAtLeast(), and ChoiceNode::EatsAtLeastHelper().

virtual void Emit ( RegExpCompiler *  compiler, Trace *  trace  )

pure virtual

Implemented in LoopChoiceNode, ChoiceNode, NegativeSubmatchSuccess, EndNode, BackReferenceNode, AssertionNode, TextNode, and ActionNode.

Referenced by RegExpCompiler::Assemble(), ActionNode::Emit(), BackReferenceNode::Emit(), ChoiceNode::Emit(), and Trace::Flush().

bool EmitQuickCheck	(	RegExpCompiler *	compiler,
		Trace *	trace,
		bool	preload_has_checked_bounds,
		Label *	on_possible_success,
		QuickCheckDetails *	details_return,
		bool	fall_through_on_failure
	)

Definition at line 2536 of file jsregexp.cc.

References RegExpCompiler::ascii(), ASSERT, Trace::at_start(), Trace::backtrack(), QuickCheckDetails::cannot_match(), RegExpMacroAssembler::CanReadUnaligned(), QuickCheckDetails::characters(), Trace::characters_preloaded(), RegExpMacroAssembler::CheckCharacter(), RegExpMacroAssembler::CheckCharacterAfterAnd(), RegExpMacroAssembler::CheckNotCharacter(), RegExpMacroAssembler::CheckNotCharacterAfterAnd(), Trace::cp_offset(), Trace::FALSE, String::kMaxAsciiCharCode, String::kMaxUtf16CodeUnit, RegExpMacroAssembler::LoadCurrentCharacter(), RegExpCompiler::macro_assembler(), QuickCheckDetails::mask(), QuickCheckDetails::Rationalize(), and QuickCheckDetails::value().

Referenced by ChoiceNode::Emit().

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

inlinevirtual

Reimplemented in LoopChoiceNode, NegativeLookaheadChoiceNode, ChoiceNode, EndNode, BackReferenceNode, AssertionNode, TextNode, ActionNode, and SeqRegExpNode.

Definition at line 620 of file jsregexp.h.

References UNREACHABLE.

Referenced by ChoiceNode::Emit(), SeqRegExpNode::FillInBMInfo(), TextNode::FillInBMInfo(), and ChoiceNode::FillInBMInfo().

virtual RegExpNode* FilterASCII ( int  depth )

inlinevirtual

Reimplemented in LoopChoiceNode, NegativeLookaheadChoiceNode, ChoiceNode, TextNode, and SeqRegExpNode.

Definition at line 631 of file jsregexp.h.

Referenced by RegExpEngine::Compile(), ChoiceNode::FilterASCII(), NegativeLookaheadChoiceNode::FilterASCII(), LoopChoiceNode::FilterASCII(), and SeqRegExpNode::FilterSuccessor().

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

pure virtual

Implemented in LoopChoiceNode, NegativeLookaheadChoiceNode, ChoiceNode, EndNode, BackReferenceNode, AssertionNode, TextNode, and ActionNode.

Referenced by ActionNode::GetQuickCheckDetails(), ChoiceNode::GetQuickCheckDetails(), and NegativeLookaheadChoiceNode::GetQuickCheckDetails().

virtual RegExpNode* GetSuccessorOfOmnivorousTextNode ( RegExpCompiler *  compiler )

inlinevirtual

Reimplemented in TextNode.

Definition at line 609 of file jsregexp.h.

References v8::internal::NULL.

Referenced by ChoiceNode::Emit().

virtual int GreedyLoopTextLength ( )

inlinevirtual

Reimplemented in TextNode, and ActionNode.

Definition at line 606 of file jsregexp.h.

References RegExpNode::kNodeIsTooComplexForGreedyLoops.

Referenced by ChoiceNode::GreedyLoopTextLengthForAlternative().

NodeInfo* info ( )

inline

Definition at line 659 of file jsregexp.h.

Referenced by Analysis::EnsureAnalyzed(), RegExpNode::replacement(), RegExpNode::set_replacement(), and Analysis::VisitLoopChoice().

Label* label ( )

inline

Definition at line 651 of file jsregexp.h.

RegExpNode::LimitResult LimitVersions ( RegExpCompiler *  compiler, Trace *  trace  )

protected

Definition at line 2317 of file jsregexp.cc.

References RegExpCompiler::AddWork(), RegExpMacroAssembler::Bind(), DONE, Trace::Flush(), RegExpMacroAssembler::GoTo(), Trace::is_trivial(), RegExpCompiler::kMaxRecursion, RegExpCompiler::macro_assembler(), v8::internal::NULL, RegExpCompiler::recursion_depth(), and Trace::stop_node().

Referenced by ActionNode::Emit(), BackReferenceNode::Emit(), and ChoiceNode::Emit().

RegExpNode* replacement ( )

inline

Definition at line 633 of file jsregexp.h.

References ASSERT, RegExpNode::info(), and RegExpNode::replacement_.

Referenced by RegExpNode::set_replacement().

void SaveBMInfo ( BoyerMooreLookahead *  bm, bool  not_at_start, int  offset  )

inline

Definition at line 647 of file jsregexp.h.

References RegExpNode::set_bm_info().

Referenced by BackReferenceNode::FillInBMInfo(), and ChoiceNode::FillInBMInfo().

void set_bm_info ( bool  not_at_start, BoyerMooreLookahead *  bm  )

inlineprotected

Definition at line 673 of file jsregexp.h.

Referenced by SeqRegExpNode::FillInBMInfo(), TextNode::FillInBMInfo(), NegativeLookaheadChoiceNode::FillInBMInfo(), and RegExpNode::SaveBMInfo().

RegExpNode* set_replacement ( RegExpNode *  replacement )

inline

Definition at line 637 of file jsregexp.h.

References RegExpNode::info(), RegExpNode::replacement(), RegExpNode::replacement_, and NodeInfo::replacement_calculated.

Zone* zone ( ) const

inline

Definition at line 665 of file jsregexp.h.

Referenced by ChoiceNode::AddAlternative(), AssertionNode::AfterNewline(), AssertionNode::AtBoundary(), AssertionNode::AtEnd(), AssertionNode::AtNonBoundary(), AssertionNode::AtStart(), ActionNode::BeginSubmatch(), ActionNode::ClearCaptures(), ChoiceNode::Emit(), ActionNode::EmptyMatchCheck(), TextNode::FillInBMInfo(), ActionNode::IncrementRegister(), ActionNode::PositiveSubmatchSuccess(), ActionNode::SetRegister(), ActionNode::StorePosition(), and TextNode::TextNode().

Field Documentation

const int kFillInBMBudget = 200

static

Definition at line 619 of file jsregexp.h.

Referenced by ChoiceNode::Emit().

const int kMaxCopiesCodeGenerated = 10

static

Definition at line 657 of file jsregexp.h.

const int kNodeIsTooComplexForGreedyLoops = -1

static

Definition at line 605 of file jsregexp.h.

Referenced by ChoiceNode::Emit(), RegExpNode::GreedyLoopTextLength(), and ActionNode::GreedyLoopTextLength().

RegExpNode* replacement_

protected

Definition at line 669 of file jsregexp.h.

Referenced by RegExpNode::replacement(), and RegExpNode::set_replacement().

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

• src/jsregexp.h
• src/jsregexp.cc