clang  14.0.0git
Classes | Enumerations | Functions
PPDirectives.cpp File Reference
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/IdentifierTable.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/Module.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TokenKinds.h"
#include "clang/Lex/CodeCompletionHandler.h"
#include "clang/Lex/HeaderSearch.h"
#include "clang/Lex/LexDiagnostic.h"
#include "clang/Lex/LiteralSupport.h"
#include "clang/Lex/MacroInfo.h"
#include "clang/Lex/ModuleLoader.h"
#include "clang/Lex/ModuleMap.h"
#include "clang/Lex/PPCallbacks.h"
#include "clang/Lex/Pragma.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "clang/Lex/Token.h"
#include "clang/Lex/VariadicMacroSupport.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/ScopeExit.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/AlignOf.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Path.h"
#include <algorithm>
#include <cassert>
#include <cstring>
#include <new>
#include <string>
#include <utility>
Include dependency graph for PPDirectives.cpp:

Go to the source code of this file.

Classes

class  clang::Preprocessor::ResetMacroExpansionHelper
 

Enumerations

enum  MacroDiag { MD_NoWarn, MD_KeywordDef, MD_ReservedMacro }
 Enumerates possible cases of #define/#undef a reserved identifier. More...
 
enum  PPElifDiag { PED_Elif, PED_Elifdef, PED_Elifndef }
 Enumerates possible select values for the pp_err_elif_after_else and pp_err_elif_without_if diagnostics. More...
 

Functions

static bool isForModuleBuilding (Module *M, StringRef CurrentModule, StringRef ModuleName)
 
static MacroDiag shouldWarnOnMacroDef (Preprocessor &PP, IdentifierInfo *II)
 
static MacroDiag shouldWarnOnMacroUndef (Preprocessor &PP, IdentifierInfo *II)
 
static bool warnByDefaultOnWrongCase (StringRef Include)
 
static bool GetLineValue (Token &DigitTok, unsigned &Val, unsigned DiagID, Preprocessor &PP, bool IsGNULineDirective=false)
 GetLineValue - Convert a numeric token into an unsigned value, emitting Diagnostic DiagID if it is invalid, and returning the value in Val. More...
 
static bool ReadLineMarkerFlags (bool &IsFileEntry, bool &IsFileExit, SrcMgr::CharacteristicKind &FileKind, Preprocessor &PP)
 ReadLineMarkerFlags - Parse and validate any flags at the end of a GNU line marker directive. More...
 
static void diagnoseAutoModuleImport (Preprocessor &PP, SourceLocation HashLoc, Token &IncludeTok, ArrayRef< std::pair< IdentifierInfo *, SourceLocation >> Path, SourceLocation PathEnd)
 Produce a diagnostic informing the user that a include or similar was implicitly treated as a module import. More...
 
static bool trySimplifyPath (SmallVectorImpl< StringRef > &Components, StringRef RealPathName)
 
static bool isConfigurationPattern (Token &MacroName, MacroInfo *MI, const LangOptions &LOptions)
 

Detailed Description

Implements # directive processing for the Preprocessor.

Definition in file PPDirectives.cpp.

Enumeration Type Documentation

◆ MacroDiag

enum MacroDiag

Enumerates possible cases of #define/#undef a reserved identifier.

Enumerator
MD_NoWarn 
MD_KeywordDef 
MD_ReservedMacro 

Definition at line 97 of file PPDirectives.cpp.

◆ PPElifDiag

enum PPElifDiag

Enumerates possible select values for the pp_err_elif_after_else and pp_err_elif_without_if diagnostics.

Enumerator
PED_Elif 
PED_Elifdef 
PED_Elifndef 

Definition at line 105 of file PPDirectives.cpp.

Function Documentation

◆ diagnoseAutoModuleImport()

static void diagnoseAutoModuleImport ( Preprocessor PP,
SourceLocation  HashLoc,
Token IncludeTok,
ArrayRef< std::pair< IdentifierInfo *, SourceLocation >>  Path,
SourceLocation  PathEnd 
)
static

◆ GetLineValue()

static bool GetLineValue ( Token DigitTok,
unsigned Val,
unsigned  DiagID,
Preprocessor PP,
bool  IsGNULineDirective = false 
)
static

GetLineValue - Convert a numeric token into an unsigned value, emitting Diagnostic DiagID if it is invalid, and returning the value in Val.

Definition at line 1192 of file PPDirectives.cpp.

References clang::Preprocessor::AdvanceToTokenCharacter(), clang::Preprocessor::Diag(), clang::Preprocessor::DiscardUntilEndOfDirective(), clang::Token::getLength(), clang::Token::getLocation(), clang::Preprocessor::getSpelling(), clang::isDigit(), and clang::Token::isNot().

Referenced by ReadLineMarkerFlags().

◆ isConfigurationPattern()

static bool isConfigurationPattern ( Token MacroName,
MacroInfo MI,
const LangOptions LOptions 
)
static

◆ isForModuleBuilding()

static bool isForModuleBuilding ( Module M,
StringRef  CurrentModule,
StringRef  ModuleName 
)
static

◆ ReadLineMarkerFlags()

static bool ReadLineMarkerFlags ( bool IsFileEntry,
bool IsFileExit,
SrcMgr::CharacteristicKind FileKind,
Preprocessor PP 
)
static

◆ shouldWarnOnMacroDef()

static MacroDiag shouldWarnOnMacroDef ( Preprocessor PP,
IdentifierInfo II 
)
static

◆ shouldWarnOnMacroUndef()

static MacroDiag shouldWarnOnMacroUndef ( Preprocessor PP,
IdentifierInfo II 
)
static

◆ trySimplifyPath()

static bool trySimplifyPath ( SmallVectorImpl< StringRef > &  Components,
StringRef  RealPathName 
)
static

Definition at line 1717 of file PPDirectives.cpp.

◆ warnByDefaultOnWrongCase()

static bool warnByDefaultOnWrongCase ( StringRef  Include)
static

Definition at line 196 of file PPDirectives.cpp.