#include <TokenLexer.h>

Public Member Functions
	TokenLexer (Token &Tok, SourceLocation ILEnd, MacroInfo MI, MacroArgs ActualArgs, Preprocessor &pp)
void	Init (Token &Tok, SourceLocation ILEnd, MacroInfo MI, MacroArgs ActualArgs)
	TokenLexer (const Token *TokArray, unsigned NumToks, bool DisableExpansion, bool ownsTokens, Preprocessor &pp)
void	Init (const Token *TokArray, unsigned NumToks, bool DisableMacroExpansion, bool OwnsTokens)
	~TokenLexer ()
unsigned	isNextTokenLParen () const
bool	Lex (Token &Tok)
	Lex - Lex and return a token from this macro stream.
bool	isParsingPreprocessorDirective () const
Friends
class	Preprocessor

Detailed Description

TokenLexer - This implements a lexer that returns tokens from a macro body or token stream instead of lexing from a character buffer. This is used for macro expansion and _Pragma handling, for example.

Definition at line 29 of file TokenLexer.h.

Constructor & Destructor Documentation

clang::TokenLexer::TokenLexer	(	Token &	Tok,
		SourceLocation	ILEnd,
		MacroInfo *	MI,
		MacroArgs *	ActualArgs,
		Preprocessor &	pp
	)		`[inline]`

Create a TokenLexer for the specified macro with the specified actual arguments. Note that this ctor takes ownership of the ActualArgs pointer. ILEnd specifies the location of the ')' for a function-like macro or the identifier for an object-like macro.

Definition at line 109 of file TokenLexer.h.

References Init().

clang::TokenLexer::TokenLexer	(	const Token *	TokArray,
		unsigned	NumToks,
		bool	DisableExpansion,
		bool	ownsTokens,
		Preprocessor &	pp
	)		`[inline]`

Create a TokenLexer for the specified token stream. If 'OwnsTokens' is specified, this takes ownership of the tokens and delete[]'s them when the token lexer is empty.

Definition at line 125 of file TokenLexer.h.

References Init().

clang::TokenLexer::~TokenLexer ( ) [inline]

Definition at line 139 of file TokenLexer.h.

Member Function Documentation

void TokenLexer::Init	(	Token &	Tok,
		SourceLocation	ELEnd,
		MacroInfo *	MI,
		MacroArgs *	Actuals
	)

Init - Initialize this TokenLexer to expand from the specified macro with the specified argument information. Note that this ctor takes ownership of the ActualArgs pointer. ILEnd specifies the location of the ')' for a function-like macro or the identifier for an object-like macro.

Create a TokenLexer for the specified macro with the specified actual arguments. Note that this ctor takes ownership of the ActualArgs pointer.

Definition at line 26 of file TokenLexer.cpp.

References clang::SourceManager::createExpansionLoc(), clang::MacroInfo::DisableMacro(), clang::MacroInfo::getDefinitionLength(), clang::SourceManager::getExpansionLoc(), clang::Token::getLocation(), clang::SourceManager::getNextLocalOffset(), clang::MacroInfo::getNumArgs(), clang::Preprocessor::getSourceManager(), clang::Token::hasLeadingSpace(), clang::Token::isAtStartOfLine(), clang::MacroInfo::isFunctionLike(), clang::SourceLocation::isValid(), SM, clang::MacroInfo::tokens_begin(), and clang::MacroInfo::tokens_end().

Referenced by TokenLexer().

void TokenLexer::Init	(	const Token *	TokArray,
		unsigned	NumToks,
		bool	disableMacroExpansion,
		bool	ownsTokens
	)

Init - Initialize this TokenLexer with the specified token stream. This does not take ownership of the specified token vector.

DisableExpansion is true when macro expansion of tokens lexed from this stream should be disabled.

Create a TokenLexer for the specified token stream. This does not take ownership of the specified token vector.

Definition at line 83 of file TokenLexer.cpp.

References clang::Token::hasLeadingSpace(), and clang::Token::isAtStartOfLine().

unsigned TokenLexer::isNextTokenLParen ( ) const

isNextTokenLParen - If the next token lexed will pop this macro off the expansion stack, return 2. If the next unexpanded token is a '(', return 1, otherwise return 0.

Definition at line 681 of file TokenLexer.cpp.

References clang::Token::is().

bool TokenLexer::isParsingPreprocessorDirective ( ) const

isParsingPreprocessorDirective - Return true if we are in the middle of a preprocessor directive.

Definition at line 690 of file TokenLexer.cpp.

References clang::Token::is().

bool TokenLexer::Lex ( Token & Tok )

Lex - Lex and return a token from this macro stream.

Definition at line 410 of file TokenLexer.cpp.

References clang::SourceManager::createExpansionLoc(), clang::MacroInfo::EnableMacro(), clang::Token::getIdentifierInfo(), clang::Token::getLength(), clang::Token::getLocation(), clang::Preprocessor::getSourceManager(), clang::IdentifierInfo::getTokenID(), clang::Preprocessor::HandleEndOfTokenLexer(), clang::Preprocessor::HandleIdentifier(), clang::Preprocessor::HandlePoisonedIdentifier(), clang::Token::is(), clang::Token::isAnnotation(), clang::SourceManager::isBeforeInSLocAddrSpace(), clang::IdentifierInfo::isHandleIdentifierCase(), clang::IdentifierInfo::isPoisoned(), clang::SourceLocation::isValid(), clang::Token::LeadingEmptyMacro, clang::Token::LeadingSpace, clang::Token::setFlag(), clang::Token::setFlagValue(), clang::Token::setKind(), clang::Token::setLocation(), SM, clang::Token::StartOfLine, and clang::Token::startToken().