#include "clang/Lex/Preprocessor.h"
#include "clang/Basic/Attributes.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/CodeCompletionHandler.h"
#include "clang/Lex/ExternalPreprocessorSource.h"
#include "clang/Lex/LexDiagnostic.h"
#include "clang/Lex/MacroArgs.h"
#include "clang/Lex/MacroInfo.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdio>
#include <ctime>

Include dependency graph for PPMacroExpansion.cpp:

Enumerations
enum	Bracket { Brace, Paren }
Functions
static IdentifierInfo *	RegisterBuiltinMacro (Preprocessor &PP, const char *Name)
static bool	isTrivialSingleTokenExpansion (const MacroInfo MI, const IdentifierInfo MacroIdent, Preprocessor &PP)
static bool	CheckMatchedBrackets (const SmallVectorImpl< Token > &Tokens)
static bool	GenerateNewArgTokens (Preprocessor &PP, SmallVectorImpl< Token > &OldTokens, SmallVectorImpl< Token > &NewTokens, unsigned &NumArgs, SmallVectorImpl< SourceRange > &ParenHints, SmallVectorImpl< SourceRange > &InitLists)
static void	ComputeDATE_TIME (SourceLocation &DATELoc, SourceLocation &TIMELoc, Preprocessor &PP)
static bool	HasFeature (const Preprocessor &PP, const IdentifierInfo *II)
static bool	HasExtension (const Preprocessor &PP, const IdentifierInfo *II)
static bool	EvaluateHasIncludeCommon (Token &Tok, IdentifierInfo II, Preprocessor &PP, const DirectoryLookup LookupFrom, const FileEntry *LookupFromFile)
static bool	EvaluateHasInclude (Token &Tok, IdentifierInfo *II, Preprocessor &PP)
static bool	EvaluateHasIncludeNext (Token &Tok, IdentifierInfo *II, Preprocessor &PP)
static bool	EvaluateBuildingModule (Token &Tok, IdentifierInfo *II, Preprocessor &PP)
	Process __building_module(identifier) expression.

Enumeration Type Documentation

enum Bracket

Enumerator:

Brace
Paren

Definition at line 384 of file PPMacroExpansion.cpp.

Function Documentation

static bool CheckMatchedBrackets ( const SmallVectorImpl< Token > & Tokens ) [static]

CheckMatchedBrackets - Returns true if the braces and parentheses in the token vector are properly nested.

Definition at line 391 of file PPMacroExpansion.cpp.

References Brace, and Paren.

Referenced by GenerateNewArgTokens().

static void ComputeDATE_TIME	(	SourceLocation &	DATELoc,
		SourceLocation &	TIMELoc,
		Preprocessor &	PP
	)		`[static]`

ComputeDATE_TIME - Compute the current time, enter it into the specified scratch buffer, then return DATELoc/TIMELoc locations with the position of the identifier tokens inserted.

Definition at line 822 of file PPMacroExpansion.cpp.

References clang::Preprocessor::CreateString(), clang::Token::getLocation(), and clang::Token::startToken().

static bool EvaluateBuildingModule	(	Token &	Tok,
		IdentifierInfo *	II,
		Preprocessor &	PP
	)		`[static]`

Process __building_module(identifier) expression.

Returns:: true if we are building the named module, false otherwise.

Definition at line 1202 of file PPMacroExpansion.cpp.

References clang::LangOptions::CurrentModule, clang::Preprocessor::Diag(), clang::Token::getIdentifierInfo(), clang::Preprocessor::getLangOpts(), clang::Token::getLocation(), clang::IdentifierInfo::getName(), clang::Token::isNot(), and clang::Preprocessor::LexNonComment().

static bool EvaluateHasInclude	(	Token &	Tok,
		IdentifierInfo *	II,
		Preprocessor &	PP
	)		`[static]`

EvaluateHasInclude - Process a '__has_include("path")' expression. Returns true if successful.

Definition at line 1165 of file PPMacroExpansion.cpp.

References EvaluateHasIncludeCommon().

static bool EvaluateHasIncludeCommon	(	Token &	Tok,
		IdentifierInfo *	II,
		Preprocessor &	PP,
		const DirectoryLookup *	LookupFrom,
		const FileEntry *	LookupFromFile
	)		`[static]`

EvaluateHasIncludeCommon - Process a '__has_include("path")' or '__has_include_next("path")' expression. Returns true if successful.

Definition at line 1058 of file PPMacroExpansion.cpp.

Referenced by EvaluateHasInclude(), and EvaluateHasIncludeNext().

static bool EvaluateHasIncludeNext	(	Token &	Tok,
		IdentifierInfo *	II,
		Preprocessor &	PP
	)		`[static]`

EvaluateHasIncludeNext - Process '__has_include_next("path")' expression. Returns true if successful.

Definition at line 1172 of file PPMacroExpansion.cpp.

References clang::Preprocessor::Diag(), EvaluateHasIncludeCommon(), clang::Preprocessor::GetCurDirLookup(), clang::Preprocessor::getCurrentLexer(), clang::Preprocessor::getCurrentSubmodule(), clang::PreprocessorLexer::getFileEntry(), and clang::Preprocessor::isInPrimaryFile().

static bool GenerateNewArgTokens	(	Preprocessor &	PP,
		SmallVectorImpl< Token > &	OldTokens,
		SmallVectorImpl< Token > &	NewTokens,
		unsigned &	NumArgs,
		SmallVectorImpl< SourceRange > &	ParenHints,
		SmallVectorImpl< SourceRange > &	InitLists
	)		`[static]`

GenerateNewArgTokens - Returns true if OldTokens can be converted to a new vector of tokens in NewTokens. The new number of arguments will be placed in NumArgs and the ranges which need to surrounded in parentheses will be in ParenHints. Returns false if the token stream cannot be changed. If this is because of an initializer list starting a macro argument, the range of those initializer lists will be place in InitLists.

Definition at line 422 of file PPMacroExpansion.cpp.

References CheckMatchedBrackets(), clang::comments::tok::eof, clang::Preprocessor::getLocForEndOfToken(), clang::Token::setKind(), clang::Token::setLength(), clang::Token::setLocation(), and clang::Token::startToken().

static bool HasExtension	(	const Preprocessor &	PP,
		const IdentifierInfo *	II
	)		`[static]`

HasExtension - Return true if we recognize and implement the feature specified by the identifier, either as an extension or a standard language feature.

Definition at line 1010 of file PPMacroExpansion.cpp.

References clang::diag::Error, clang::Preprocessor::getDiagnostics(), clang::DiagnosticsEngine::getExtensionHandlingBehavior(), clang::Preprocessor::getLangOpts(), clang::IdentifierInfo::getName(), clang::Preprocessor::getTargetInfo(), HasFeature(), and clang::TargetInfo::isTLSSupported().

static bool HasFeature	(	const Preprocessor &	PP,
		const IdentifierInfo *	II
	)		`[static]`

HasFeature - Return true if we recognize and implement the feature specified by the identifier as a standard language feature.

Definition at line 857 of file PPMacroExpansion.cpp.

References clang::Preprocessor::getLangOpts(), clang::IdentifierInfo::getName(), clang::Preprocessor::getTargetInfo(), clang::SanitizerSet::has(), clang::ObjCRuntime::hasWeakClassImport(), clang::ObjCRuntime::isNonFragile(), clang::TargetInfo::isTLSSupported(), clang::LangOptions::ObjCRuntime, and clang::LangOptions::Sanitize.

Referenced by HasExtension().

static bool isTrivialSingleTokenExpansion	(	const MacroInfo *	MI,
		const IdentifierInfo *	MacroIdent,
		Preprocessor &	PP
	)		`[static]`

isTrivialSingleTokenExpansion - Return true if MI, which has a single token in its expansion, currently expands to that token literally.

Definition at line 143 of file PPMacroExpansion.cpp.

References clang::MacroInfo::arg_begin(), clang::MacroInfo::arg_end(), clang::Preprocessor::getExternalSource(), clang::Token::getIdentifierInfo(), clang::Preprocessor::getMacroInfo(), clang::MacroInfo::getReplacementToken(), clang::IdentifierInfo::hasMacroDefinition(), clang::MacroInfo::isEnabled(), clang::MacroInfo::isObjectLike(), clang::IdentifierInfo::isOutOfDate(), and clang::ExternalPreprocessorSource::updateOutOfDateIdentifier().

static IdentifierInfo* RegisterBuiltinMacro	(	Preprocessor &	PP,
		const char *	Name
	)		`[static]`

RegisterBuiltinMacro - Register the specified identifier in the identifier table and mark it as a builtin macro to be expanded.

Definition at line 77 of file PPMacroExpansion.cpp.

References clang::Preprocessor::AllocateMacroInfo(), clang::Preprocessor::appendDefMacroDirective(), clang::Preprocessor::getIdentifierInfo(), and clang::MacroInfo::setIsBuiltinMacro().

Enumerations

Functions

Enumeration Type Documentation

Function Documentation