clang  16.0.0git
Macros | Enumerations | Functions
PPMacroExpansion.cpp File Reference
#include "clang/Basic/AttributeCommonInfo.h"
#include "clang/Basic/Attributes.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/IdentifierTable.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/ObjCRuntime.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/CodeCompletionHandler.h"
#include "clang/Lex/DirectoryLookup.h"
#include "clang/Lex/ExternalPreprocessorSource.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/LexDiagnostic.h"
#include "clang/Lex/LiteralSupport.h"
#include "clang/Lex/MacroArgs.h"
#include "clang/Lex/MacroInfo.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Lex/PreprocessorLexer.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "clang/Lex/Token.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstring>
#include <ctime>
#include <string>
#include <tuple>
#include <utility>
#include "clang/Basic/Features.def"
#include "clang/Basic/TransformTypeTraits.def"
Include dependency graph for PPMacroExpansion.cpp:

Go to the source code of this file.

Macros

#define FEATURE(Name, Predicate)   .Case(#Name, Predicate)
 
#define EXTENSION(Name, Predicate)   .Case(#Name, Predicate)
 
#define TRANSFORM_TYPE_TRAIT_DEF(_, Trait)   .Case("__" #Trait, true)
 

Enumerations

enum  Bracket { Brace, Paren }
 

Functions

static IdentifierInfoRegisterBuiltinMacro (Preprocessor &PP, const char *Name)
 RegisterBuiltinMacro - Register the specified identifier in the identifier table and mark it as a builtin macro to be expanded. More...
 
static bool isTrivialSingleTokenExpansion (const MacroInfo *MI, const IdentifierInfo *MacroIdent, Preprocessor &PP)
 isTrivialSingleTokenExpansion - Return true if MI, which has a single token in its expansion, currently expands to that token literally. More...
 
static bool CheckMatchedBrackets (const SmallVectorImpl< Token > &Tokens)
 CheckMatchedBrackets - Returns true if the braces and parentheses in the token vector are properly nested. More...
 
static bool GenerateNewArgTokens (Preprocessor &PP, SmallVectorImpl< Token > &OldTokens, SmallVectorImpl< Token > &NewTokens, unsigned &NumArgs, SmallVectorImpl< SourceRange > &ParenHints, SmallVectorImpl< SourceRange > &InitLists)
 GenerateNewArgTokens - Returns true if OldTokens can be converted to a new vector of tokens in NewTokens. More...
 
static void ComputeDATE_TIME (SourceLocation &DATELoc, SourceLocation &TIMELoc, Preprocessor &PP)
 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. More...
 
static bool HasFeature (const Preprocessor &PP, StringRef Feature)
 HasFeature - Return true if we recognize and implement the feature specified by the identifier as a standard language feature. More...
 
static bool HasExtension (const Preprocessor &PP, StringRef Extension)
 HasExtension - Return true if we recognize and implement the feature specified by the identifier, either as an extension or a standard language feature. More...
 
static bool EvaluateHasIncludeCommon (Token &Tok, IdentifierInfo *II, Preprocessor &PP, ConstSearchDirIterator LookupFrom, const FileEntry *LookupFromFile)
 EvaluateHasIncludeCommon - Process a '__has_include("path")' or '__has_include_next("path")' expression. More...
 
static void EvaluateFeatureLikeBuiltinMacro (llvm::raw_svector_ostream &OS, Token &Tok, IdentifierInfo *II, Preprocessor &PP, bool ExpandArgs, llvm::function_ref< int(Token &Tok, bool &HasLexedNextTok)> Op)
 Process single-argument builtin feature-like macros that return integer values. More...
 
static IdentifierInfoExpectFeatureIdentifierInfo (Token &Tok, Preprocessor &PP, signed DiagID)
 Helper function to return the IdentifierInfo structure of a Token or generate a diagnostic if none available. More...
 
static bool isTargetArch (const TargetInfo &TI, const IdentifierInfo *II)
 Implements the __is_target_arch builtin macro. More...
 
static bool isTargetVendor (const TargetInfo &TI, const IdentifierInfo *II)
 Implements the __is_target_vendor builtin macro. More...
 
static bool isTargetOS (const TargetInfo &TI, const IdentifierInfo *II)
 Implements the __is_target_os builtin macro. More...
 
static bool isTargetEnvironment (const TargetInfo &TI, const IdentifierInfo *II)
 Implements the __is_target_environment builtin macro. More...
 
static bool isTargetVariantOS (const TargetInfo &TI, const IdentifierInfo *II)
 Implements the __is_target_variant_os builtin macro. More...
 
static bool isTargetVariantEnvironment (const TargetInfo &TI, const IdentifierInfo *II)
 Implements the __is_target_variant_environment builtin macro. More...
 

Macro Definition Documentation

◆ EXTENSION

#define EXTENSION (   Name,
  Predicate 
)    .Case(#Name, Predicate)

◆ FEATURE

#define FEATURE (   Name,
  Predicate 
)    .Case(#Name, Predicate)

◆ TRANSFORM_TYPE_TRAIT_DEF

#define TRANSFORM_TYPE_TRAIT_DEF (   _,
  Trait 
)    .Case("__" #Trait, true)

Enumeration Type Documentation

◆ Bracket

enum Bracket
Enumerator
Brace 
Paren 

Definition at line 637 of file PPMacroExpansion.cpp.

Function Documentation

◆ CheckMatchedBrackets()

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 644 of file PPMacroExpansion.cpp.

Referenced by GenerateNewArgTokens().

◆ ComputeDATE_TIME()

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 1089 of file PPMacroExpansion.cpp.

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

◆ EvaluateFeatureLikeBuiltinMacro()

static void EvaluateFeatureLikeBuiltinMacro ( llvm::raw_svector_ostream &  OS,
Token Tok,
IdentifierInfo II,
Preprocessor PP,
bool  ExpandArgs,
llvm::function_ref< int(Token &Tok, bool &HasLexedNextTok)>  Op 
)
static

◆ EvaluateHasIncludeCommon()

static bool EvaluateHasIncludeCommon ( Token Tok,
IdentifierInfo II,
Preprocessor PP,
ConstSearchDirIterator  LookupFrom,
const FileEntry LookupFromFile 
)
static

◆ ExpectFeatureIdentifierInfo()

static IdentifierInfo* ExpectFeatureIdentifierInfo ( Token Tok,
Preprocessor PP,
signed  DiagID 
)
static

Helper function to return the IdentifierInfo structure of a Token or generate a diagnostic if none available.

Definition at line 1393 of file PPMacroExpansion.cpp.

References clang::Preprocessor::Diag(), clang::Token::getIdentifierInfo(), clang::Token::getLocation(), and clang::Token::isAnnotation().

◆ GenerateNewArgTokens()

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 673 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().

◆ HasExtension()

static bool HasExtension ( const Preprocessor PP,
StringRef  Extension 
)
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 1153 of file PPMacroExpansion.cpp.

References clang::diag::Error, clang::Preprocessor::getDiagnostics(), clang::DiagnosticsEngine::getExtensionHandlingBehavior(), and HasFeature().

◆ HasFeature()

static bool HasFeature ( const Preprocessor PP,
StringRef  Feature 
)
static

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

Definition at line 1136 of file PPMacroExpansion.cpp.

Referenced by HasExtension().

◆ isTargetArch()

static bool isTargetArch ( const TargetInfo TI,
const IdentifierInfo II 
)
static

Implements the __is_target_arch builtin macro.

Definition at line 1405 of file PPMacroExpansion.cpp.

References clang::IdentifierInfo::getName(), clang::TargetInfo::getTriple(), and string().

◆ isTargetEnvironment()

static bool isTargetEnvironment ( const TargetInfo TI,
const IdentifierInfo II 
)
static

Implements the __is_target_environment builtin macro.

Definition at line 1447 of file PPMacroExpansion.cpp.

References clang::IdentifierInfo::getName(), clang::TargetInfo::getTriple(), and string().

◆ isTargetOS()

static bool isTargetOS ( const TargetInfo TI,
const IdentifierInfo II 
)
static

Implements the __is_target_os builtin macro.

Definition at line 1435 of file PPMacroExpansion.cpp.

References clang::IdentifierInfo::getName(), clang::TargetInfo::getTriple(), and string().

◆ isTargetVariantEnvironment()

static bool isTargetVariantEnvironment ( const TargetInfo TI,
const IdentifierInfo II 
)
static

Implements the __is_target_variant_environment builtin macro.

Definition at line 1479 of file PPMacroExpansion.cpp.

References clang::TargetInfo::getDarwinTargetVariantTriple(), clang::IdentifierInfo::getName(), clang::TargetInfo::getTriple(), and string().

◆ isTargetVariantOS()

static bool isTargetVariantOS ( const TargetInfo TI,
const IdentifierInfo II 
)
static

Implements the __is_target_variant_os builtin macro.

Definition at line 1460 of file PPMacroExpansion.cpp.

References clang::TargetInfo::getDarwinTargetVariantTriple(), clang::IdentifierInfo::getName(), clang::TargetInfo::getTriple(), and string().

◆ isTargetVendor()

static bool isTargetVendor ( const TargetInfo TI,
const IdentifierInfo II 
)
static

Implements the __is_target_vendor builtin macro.

Definition at line 1427 of file PPMacroExpansion.cpp.

References clang::IdentifierInfo::getName(), and clang::TargetInfo::getTriple().

◆ isTrivialSingleTokenExpansion()

static bool isTrivialSingleTokenExpansion ( const MacroInfo MI,
const IdentifierInfo MacroIdent,
Preprocessor PP 
)
static

◆ RegisterBuiltinMacro()

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 327 of file PPMacroExpansion.cpp.