clang
3.9.0
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TokenLexer - This implements a lexer that returns tokens from a macro body or token stream instead of lexing from a character buffer. More...
#include <TokenLexer.h>
Public Member Functions | |
TokenLexer (Token &Tok, SourceLocation ILEnd, MacroInfo *MI, MacroArgs *ActualArgs, Preprocessor &pp) | |
Create a TokenLexer for the specified macro with the specified actual arguments. More... | |
void | Init (Token &Tok, SourceLocation ILEnd, MacroInfo *MI, MacroArgs *ActualArgs) |
Init - Initialize this TokenLexer to expand from the specified macro with the specified argument information. More... | |
TokenLexer (const Token *TokArray, unsigned NumToks, bool DisableExpansion, bool ownsTokens, Preprocessor &pp) | |
Create a TokenLexer for the specified token stream. More... | |
void | Init (const Token *TokArray, unsigned NumToks, bool DisableMacroExpansion, bool OwnsTokens) |
Init - Initialize this TokenLexer with the specified token stream. More... | |
~TokenLexer () | |
unsigned | isNextTokenLParen () const |
isNextTokenLParen - If the next token lexed will pop this macro off the expansion stack, return 2. More... | |
bool | Lex (Token &Tok) |
Lex - Lex and return a token from this macro stream. More... | |
bool | isParsingPreprocessorDirective () const |
isParsingPreprocessorDirective - Return true if we are in the middle of a preprocessor directive. More... | |
Friends | |
class | Preprocessor |
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.
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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().
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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().
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inline |
Definition at line 139 of file TokenLexer.h.
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.
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.
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.
Create a TokenLexer for 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.
This does not take ownership of the specified token vector.
Definition at line 81 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 705 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 714 of file TokenLexer.cpp.
References clang::Token::is().
Lex - Lex and return a token from this macro stream.
Definition at line 419 of file TokenLexer.cpp.
References clang::SourceManager::createExpansionLoc(), clang::MacroInfo::EnableMacro(), clang::Token::getIdentifierInfo(), clang::Preprocessor::getLangOpts(), 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(), isWideStringLiteralFromMacro(), 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().
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Definition at line 52 of file TokenLexer.h.