IdentifierTable.cpp File Reference

#include "clang/Basic/IdentifierTable.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/DiagnosticLex.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/OperatorKinds.h"
#include "clang/Basic/Specifiers.h"
#include "clang/Basic/TargetBuiltins.h"
#include "clang/Basic/TokenKinds.h"
#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdio>
#include <cstring>
#include <string>
#include "clang/Basic/TokenKinds.def"
#include "clang/Basic/OperatorKinds.def"

Go to the source code of this file.

Macros
#define	KEYWORD(NAME, FLAGS)
#define	ALIAS(NAME, TOK, FLAGS)
#define	CXX_KEYWORD_OPERATOR(NAME, ALIAS)
#define	OBJC_AT_KEYWORD(NAME)
#define	NOTABLE_IDENTIFIER(NAME)    AddNotableIdentifier(StringRef(#NAME), tok::NAME, *this);
#define	TESTING_KEYWORD(NAME, FLAGS)
#define	KEYWORD(NAME, FLAGS)    case tok::kw_##NAME: return getKeywordStatus(LangOpts, FLAGS);
#define	HASH(LEN, FIRST, THIRD)    (LEN << 6) + (((FIRST - 'a') - (THIRD - 'a')) & 63)
#define	CASE(LEN, FIRST, THIRD, NAME)
#define	OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly)    case OO_##Name: return Spelling;
#define	KEYWORD(NAME, FLAGS)   .Case(#NAME, FLAGS)

Functions
static KeywordStatus	getKeywordStatusHelper (const LangOptions &LangOpts, TokenKey Flag)
static KeywordStatus	getKeywordStatus (const LangOptions &LangOpts, unsigned Flags)
	Translates flags as specified in TokenKinds.def into keyword status in the given language standard.
static void	AddKeyword (StringRef Keyword, tok::TokenKind TokenCode, unsigned Flags, const LangOptions &LangOpts, IdentifierTable &Table)
	AddKeyword - This method is used to associate a token ID with specific identifiers because they are language keywords.
static void	AddCXXOperatorKeyword (StringRef Keyword, tok::TokenKind TokenCode, IdentifierTable &Table)
	AddCXXOperatorKeyword - Register a C++ operator keyword alternative representations.
static void	AddObjCKeyword (StringRef Name, tok::ObjCKeywordKind ObjCID, IdentifierTable &Table)
	AddObjCKeyword - Register an Objective-C @keyword like "class" "selector" or "property".
static void	AddNotableIdentifier (StringRef Name, tok::NotableIdentifierKind BTID, IdentifierTable &Table)
static KeywordStatus	getTokenKwStatus (const LangOptions &LangOpts, tok::TokenKind K)
	Checks if the specified token kind represents a keyword in the specified language.
static bool	startsWithWord (StringRef name, StringRef word)
	Interpreting the given string using the normal CamelCase conventions, determine whether the given string starts with the given "word", which is assumed to end in a lowercase letter.
static SelectorTableImpl &	getSelectorTableImpl (void *P)

Macro Definition Documentation

ALIAS

#define ALIAS	(		NAME,
			TOK,
			FLAGS
	)

Value:

  AddKeyword(StringRef(NAME), tok::kw_ ## TOK,  \
             FLAGS, LangOpts, *this);

CASE

#define CASE	(		LEN,
			FIRST,
			THIRD,
			NAME
	)

Value:

  case HASH(LEN, FIRST, THIRD): \
    return memcmp(Name, #NAME, LEN) ? tok::pp_not_keyword : tok::pp_ ## NAME

CXX_KEYWORD_OPERATOR

#define CXX_KEYWORD_OPERATOR	(		NAME,
			ALIAS
	)

Value:

  if (LangOpts.CXXOperatorNames)          \
    AddCXXOperatorKeyword(StringRef(#NAME), tok::ALIAS, *this);

HASH

#define HASH	(		LEN,
			FIRST,
			THIRD
	)		(LEN << 6) + (((FIRST - 'a') - (THIRD - 'a')) & 63)

KEYWORD [1/3]

#define KEYWORD	(		NAME,
			FLAGS
	)

Value:

  AddKeyword(StringRef(#NAME), tok::kw_ ## NAME,  \
             FLAGS, LangOpts, *this);

KEYWORD [2/3]

#define KEYWORD	(		NAME,
			FLAGS
	)		case tok::kw_##NAME: return getKeywordStatus(LangOpts, FLAGS);

KEYWORD [3/3]

#define KEYWORD	(		NAME,
			FLAGS
	)		.Case(#NAME, FLAGS)

NOTABLE_IDENTIFIER

#define NOTABLE_IDENTIFIER

(

NAME

)

AddNotableIdentifier(StringRef(#NAME), tok::NAME, *this);

OBJC_AT_KEYWORD

#define OBJC_AT_KEYWORD

(

NAME

)

Value:

  if (LangOpts.ObjC)           \
    AddObjCKeyword(StringRef(#NAME), tok::objc_##NAME, *this);

OVERLOADED_OPERATOR

#define OVERLOADED_OPERATOR	(		Name,
			Spelling,
			Token,
			Unary,
			Binary,
			MemberOnly
	)		case OO_##Name: return Spelling;

TESTING_KEYWORD

#define TESTING_KEYWORD	(		NAME,
			FLAGS
	)

Function Documentation

AddCXXOperatorKeyword()

static void AddCXXOperatorKeyword ( StringRef  Keyword, tok::TokenKind  TokenCode, IdentifierTable &  Table  )

static

AddCXXOperatorKeyword - Register a C++ operator keyword alternative representations.

Definition at line 272 of file IdentifierTable.cpp.

References clang::IdentifierTable::get(), and clang::IdentifierInfo::setIsCPlusPlusOperatorKeyword().

AddKeyword()

static void AddKeyword ( StringRef  Keyword, tok::TokenKind  TokenCode, unsigned  Flags, const LangOptions &  LangOpts, IdentifierTable &  Table  )

static

AddKeyword - This method is used to associate a token ID with specific identifiers because they are language keywords.

This causes the lexer to automatically map matching identifiers to specialized token codes.

Definition at line 256 of file IdentifierTable.cpp.

References clang::IdentifierTable::get(), getKeywordStatus(), clang::IdentifierInfo::setIsExtensionToken(), and clang::IdentifierInfo::setIsFutureCompatKeyword().

Referenced by clang::IdentifierTable::AddKeywords().

AddNotableIdentifier()

static void AddNotableIdentifier ( StringRef  Name, tok::NotableIdentifierKind  BTID, IdentifierTable &  Table  )

static

Definition at line 287 of file IdentifierTable.cpp.

References clang::IdentifierTable::get(), and clang::IdentifierInfo::setNotableIdentifierID().

AddObjCKeyword()

static void AddObjCKeyword ( StringRef  Name, tok::ObjCKeywordKind  ObjCID, IdentifierTable &  Table  )

static

AddObjCKeyword - Register an Objective-C @keyword like "class" "selector" or "property".

Definition at line 281 of file IdentifierTable.cpp.

References clang::IdentifierTable::get(), and clang::IdentifierInfo::setObjCKeywordID().

getKeywordStatus()

static KeywordStatus getKeywordStatus ( const LangOptions &  LangOpts, unsigned  Flags  )

static

Translates flags as specified in TokenKinds.def into keyword status in the given language standard.

Definition at line 226 of file IdentifierTable.cpp.

References getKeywordStatusHelper(), clang::LangOptions::isCompatibleWithMSVC(), and clang::LangOptionsBase::MSVC2015.

Referenced by AddKeyword().

getKeywordStatusHelper()

static KeywordStatus getKeywordStatusHelper ( const LangOptions &  LangOpts, TokenKey  Flag  )

static

Definition at line 138 of file IdentifierTable.cpp.

References clang::LangOptions::isSYCL().

Referenced by getKeywordStatus().

getSelectorTableImpl()

static SelectorTableImpl & getSelectorTableImpl ( void *  P )

static

Definition at line 727 of file IdentifierTable.cpp.

References P.

Referenced by clang::SelectorTable::getSelector(), clang::SelectorTable::getTotalMemory(), and clang::SelectorTable::~SelectorTable().

getTokenKwStatus()

static KeywordStatus getTokenKwStatus ( const LangOptions &  LangOpts, tok::TokenKind  K  )

static

Checks if the specified token kind represents a keyword in the specified language.

Returns

Status of the keyword in the language.

Definition at line 336 of file IdentifierTable.cpp.

Referenced by clang::IdentifierInfo::isKeyword().

startsWithWord()

static bool startsWithWord ( StringRef  name, StringRef  word  )

static

Interpreting the given string using the normal CamelCase conventions, determine whether the given string starts with the given "word", which is assumed to end in a lowercase letter.

Definition at line 610 of file IdentifierTable.cpp.

References clang::isLowercase().

Referenced by clang::Selector::getInstTypeMethodFamily().