clang  3.7.0
Public Member Functions | Static Public Member Functions | List of all members
clang::MacroArgs Class Reference

#include <MacroArgs.h>

Public Member Functions

void destroy (Preprocessor &PP)
 
bool ArgNeedsPreexpansion (const Token *ArgTok, Preprocessor &PP) const
 
const TokengetUnexpArgument (unsigned Arg) const
 
const std::vector< Token > & getPreExpArgument (unsigned Arg, const MacroInfo *MI, Preprocessor &PP)
 
const TokengetStringifiedArgument (unsigned ArgNo, Preprocessor &PP, SourceLocation ExpansionLocStart, SourceLocation ExpansionLocEnd)
 
unsigned getNumArguments () const
 
bool isVarargsElidedUse () const
 
MacroArgsdeallocate ()
 

Static Public Member Functions

static MacroArgscreate (const MacroInfo *MI, ArrayRef< Token > UnexpArgTokens, bool VarargsElided, Preprocessor &PP)
 MacroArgs ctor function - This destroys the vector passed in. More...
 
static unsigned getArgLength (const Token *ArgPtr)
 
static Token StringifyArgument (const Token *ArgToks, Preprocessor &PP, bool Charify, SourceLocation ExpansionLocStart, SourceLocation ExpansionLocEnd)
 

Detailed Description

MacroArgs - An instance of this class captures information about the formal arguments specified to a function-like macro invocation.

Definition at line 29 of file MacroArgs.h.

Member Function Documentation

bool MacroArgs::ArgNeedsPreexpansion ( const Token ArgTok,
Preprocessor PP 
) const

ArgNeedsPreexpansion - If we can prove that the argument won't be affected by pre-expansion, return false. Otherwise, conservatively return true.

Definition at line 131 of file MacroArgs.cpp.

References clang::comments::tok::eof, clang::Token::getIdentifierInfo(), and clang::Token::isNot().

MacroArgs * MacroArgs::create ( const MacroInfo MI,
ArrayRef< Token UnexpArgTokens,
bool  VarargsElided,
Preprocessor PP 
)
static

MacroArgs ctor function - This destroys the vector passed in.

MacroArgs ctor function - Create a new MacroArgs object with the specified macro and argument info.

Definition at line 25 of file MacroArgs.cpp.

References getUnexpArgument(), clang::MacroInfo::isFunctionLike(), clang::Result, and Token.

MacroArgs * MacroArgs::deallocate ( )

deallocate - This should only be called by the Preprocessor when managing its freelist.

Definition at line 88 of file MacroArgs.cpp.

References Next.

void MacroArgs::destroy ( Preprocessor PP)

destroy - Destroy and deallocate the memory for this object.

Definition at line 73 of file MacroArgs.cpp.

References clang::clear().

unsigned MacroArgs::getArgLength ( const Token ArgPtr)
static

getArgLength - Given a pointer to an expanded or unexpanded argument, return the number of tokens, not counting the EOF, that make up the argument.

Definition at line 103 of file MacroArgs.cpp.

References clang::comments::tok::eof, and clang::Token::isNot().

Referenced by getPreExpArgument().

unsigned clang::MacroArgs::getNumArguments ( ) const
inline

getNumArguments - Return the number of arguments passed into this macro invocation.

Definition at line 99 of file MacroArgs.h.

Referenced by getStringifiedArgument().

const std::vector< Token > & MacroArgs::getPreExpArgument ( unsigned  Arg,
const MacroInfo MI,
Preprocessor PP 
)
const Token & MacroArgs::getStringifiedArgument ( unsigned  ArgNo,
Preprocessor PP,
SourceLocation  ExpansionLocStart,
SourceLocation  ExpansionLocEnd 
)

getStringifiedArgument - Compute, cache, and return the specified argument that has been 'stringified' as required by the # operator.

Definition at line 297 of file MacroArgs.cpp.

References getNumArguments(), getUnexpArgument(), and StringifyArgument().

const Token * MacroArgs::getUnexpArgument ( unsigned  Arg) const

getUnexpArgument - Return a pointer to the first token of the unexpanded token list for the specified formal.

getUnexpArgument - Return the unexpanded tokens for the specified formal.

Definition at line 113 of file MacroArgs.cpp.

References clang::comments::tok::eof, clang::Token::is(), and clang::Result.

Referenced by create(), getPreExpArgument(), and getStringifiedArgument().

bool clang::MacroArgs::isVarargsElidedUse ( ) const
inline

isVarargsElidedUse - Return true if this is a C99 style varargs macro invocation and there was no argument specified for the "..." argument. If the argument was specified (even empty) or this isn't a C99 style varargs function, or if in strict mode and the C99 varargs macro had only a ... argument, this returns false.

Definition at line 107 of file MacroArgs.h.

Token MacroArgs::StringifyArgument ( const Token ArgToks,
Preprocessor PP,
bool  Charify,
SourceLocation  ExpansionLocStart,
SourceLocation  ExpansionLocEnd 
)
static

StringifyArgument - Implement C99 6.10.3.2p2, converting a sequence of tokens into the literal string token that should be produced by the C # preprocessor operator. If Charify is true, then it should be turned into a character literal for the Microsoft charize (#@) extension.

Definition at line 194 of file MacroArgs.cpp.

References clang::Preprocessor::CodeCompleteNaturalLanguage(), clang::Preprocessor::CreateString(), clang::Preprocessor::Diag(), clang::comments::tok::eof, clang::Token::getKind(), clang::Token::getLength(), clang::Preprocessor::getSpelling(), clang::Token::hasLeadingSpace(), clang::Token::is(), clang::Token::isAtStartOfLine(), clang::Token::isNot(), clang::tok::isStringLiteral(), clang::Result, clang::Token::setKind(), clang::Token::startToken(), and clang::Lexer::Stringify().

Referenced by getStringifiedArgument().


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