MacroInfo.h revision 686775deca8b8685eb90801495880e3abdd844c2
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- MacroInfo.h - Information about #defined identifiers ---*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the MacroInfo interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_MACROINFO_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_MACROINFO_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17d217773f106856a11879ec79dc468efefaf2ee75Chris Lattner#include "clang/Lex/Token.h" 18f46f68b5587b6933a92260220567ea7c36924a80Chris Lattner#include "llvm/ADT/SmallVector.h" 19685befeb5f6472585bae473a6389e47cab9eac67Chris Lattner#include "llvm/Support/Allocator.h" 209dc62f044a6ba21f503bd56607d94b32704e7945Chris Lattner#include <cassert> 215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Preprocessor; 241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// MacroInfo - Each identifier that is #define'd has an instance of this class 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// associated with it, used to implement macro expansion. 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MacroInfo { 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // State set when the macro is defined. 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Location - This is the place the macro is defined. 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Location; 332451b528fe114595d0f10ef2c05047928558ab0fChris Lattner /// EndLocation - The location of the last token in the macro. 342451b528fe114595d0f10ef2c05047928558ab0fChris Lattner SourceLocation EndLocation; 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Arguments - The list of arguments for a function-like macro. This can be 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// empty, for, e.g. "#define X()". In a C99-style variadic macro, this 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// includes the __VA_ARGS__ identifier on the list. 3925c9648909193d380a4e135d2e3d25394ba12922Chris Lattner IdentifierInfo **ArgumentList; 4025c9648909193d380a4e135d2e3d25394ba12922Chris Lattner unsigned NumArguments; 411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ReplacementTokens - This is the list of tokens that the macro is defined 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// to. 44686775deca8b8685eb90801495880e3abdd844c2Chris Lattner SmallVector<Token, 8> ReplacementTokens; 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 46b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis /// \brief Length in characters of the macro definition. 47b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis mutable unsigned DefinitionLength; 48b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis mutable bool IsDefinitionLengthCached : 1; 49b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// IsFunctionLike - True if this macro is a function-like macro, false if it 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// is an object-like macro. 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsFunctionLike : 1; 531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// IsC99Varargs - True if this macro is of the form "#define X(...)" or 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// "#define X(Y,Z,...)". The __VA_ARGS__ token should be replaced with the 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// contents of "..." in an invocation. 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsC99Varargs : 1; 581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// IsGNUVarargs - True if this macro is of the form "#define X(a...)". The 6012fe558612303cb2188c321a77a21f7df23b6ae8Chris Lattner /// "a" identifier in the replacement list will be replaced with all arguments 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the macro starting with the specified one. 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsGNUVarargs : 1; 631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// IsBuiltinMacro - True if this is a builtin macro, such as __LINE__, and if 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// it has not yet been redefined or undefined. 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsBuiltinMacro : 1; 671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 683c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl /// IsFromAST - True if this macro was loaded from an AST file. 693c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl bool IsFromAST : 1; 70083abdf67f157e9d2ab5a8c9d5e71240479d3c99Sebastian Redl 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // State that changes as the macro is used. 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// IsDisabled - True if we have started an expansion of this macro already. 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// This disbles recursive expansion, which would be quite bad for things like 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// #define A A. 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsDisabled : 1; 791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// IsUsed - True if this macro is either defined in the main file and has 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// been used, or if it is not defined in the main file. This is used to 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// emit -Wunused-macros diagnostics. 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsUsed : 1; 841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 85f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner /// AllowRedefinitionsWithoutWarning - True if this macro can be redefined 86f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner /// without emitting a warning. 87f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner bool IsAllowRedefinitionsWithoutWarning : 1; 880827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis 890827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis /// \brief Must warn if the macro is unused at the end of translation unit. 900827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis bool IsWarnIfUnused : 1; 91f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner 92f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner ~MacroInfo() { 930301b3ff132a4d986c092d161cb77d74b04cd2a6Chris Lattner assert(ArgumentList == 0 && "Didn't call destroy before dtor!"); 940301b3ff132a4d986c092d161cb77d74b04cd2a6Chris Lattner } 951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattnerpublic: 97cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner MacroInfo(SourceLocation DefLoc); 98f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner MacroInfo(const MacroInfo &MI, llvm::BumpPtrAllocator &PPAllocator); 99f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner 100cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner /// FreeArgumentList - Free the argument list of the macro, restoring it to a 101cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner /// state where it can be reused for other devious purposes. 1022c1ab9079cb117dc0470ab423fe0bc5177546339Chris Lattner void FreeArgumentList() { 1030301b3ff132a4d986c092d161cb77d74b04cd2a6Chris Lattner ArgumentList = 0; 104cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner NumArguments = 0; 105cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner } 1061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 107cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner /// Destroy - destroy this MacroInfo object. 1082c1ab9079cb117dc0470ab423fe0bc5177546339Chris Lattner void Destroy() { 1092c1ab9079cb117dc0470ab423fe0bc5177546339Chris Lattner FreeArgumentList(); 110cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner this->~MacroInfo(); 11125c9648909193d380a4e135d2e3d25394ba12922Chris Lattner } 1121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getDefinitionLoc - Return the location that the macro was defined at. 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getDefinitionLoc() const { return Location; } 1162451b528fe114595d0f10ef2c05047928558ab0fChris Lattner 1172451b528fe114595d0f10ef2c05047928558ab0fChris Lattner /// setDefinitionEndLoc - Set the location of the last token in the macro. 1182451b528fe114595d0f10ef2c05047928558ab0fChris Lattner /// 1192451b528fe114595d0f10ef2c05047928558ab0fChris Lattner void setDefinitionEndLoc(SourceLocation EndLoc) { EndLocation = EndLoc; } 1202451b528fe114595d0f10ef2c05047928558ab0fChris Lattner /// getDefinitionEndLoc - Return the location of the last token in the macro. 1212451b528fe114595d0f10ef2c05047928558ab0fChris Lattner /// 1222451b528fe114595d0f10ef2c05047928558ab0fChris Lattner SourceLocation getDefinitionEndLoc() const { return EndLocation; } 123b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis 124b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis /// \brief Get length in characters of the macro definition. 125b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis unsigned getDefinitionLength(SourceManager &SM) const { 126b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis if (IsDefinitionLengthCached) 127b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis return DefinitionLength; 128b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis return getDefinitionLengthSlow(SM); 129b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis } 1302451b528fe114595d0f10ef2c05047928558ab0fChris Lattner 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIdenticalTo - Return true if the specified macro definition is equal to 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this macro in spelling, arguments, and whitespace. This is used to emit 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// duplicate definition warnings. This implements the rules in C99 6.10.3. 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIdenticalTo(const MacroInfo &Other, Preprocessor &PP) const; 1351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// setIsBuiltinMacro - Set or clear the isBuiltinMacro flag. 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void setIsBuiltinMacro(bool Val = true) { 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IsBuiltinMacro = Val; 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// setIsUsed - Set the value of the IsUsed flag. 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void setIsUsed(bool Val) { 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IsUsed = Val; 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 148f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner /// setIsAllowRedefinitionsWithoutWarning - Set the value of the 149f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner /// IsAllowRedefinitionsWithoutWarning flag. 150f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner void setIsAllowRedefinitionsWithoutWarning(bool Val) { 151f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner IsAllowRedefinitionsWithoutWarning = Val; 152f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner } 153f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner 1540827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis /// \brief Set the value of the IsWarnIfUnused flag. 1550827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis void setIsWarnIfUnused(bool val) { 1560827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis IsWarnIfUnused = val; 1570827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis } 1580827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis 15925c9648909193d380a4e135d2e3d25394ba12922Chris Lattner /// setArgumentList - Set the specified list of identifiers as the argument 16025c9648909193d380a4e135d2e3d25394ba12922Chris Lattner /// list for this macro. 161685befeb5f6472585bae473a6389e47cab9eac67Chris Lattner void setArgumentList(IdentifierInfo* const *List, unsigned NumArgs, 162685befeb5f6472585bae473a6389e47cab9eac67Chris Lattner llvm::BumpPtrAllocator &PPAllocator) { 163cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner assert(ArgumentList == 0 && NumArguments == 0 && 164cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner "Argument list already set!"); 16525c9648909193d380a4e135d2e3d25394ba12922Chris Lattner if (NumArgs == 0) return; 1661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16725c9648909193d380a4e135d2e3d25394ba12922Chris Lattner NumArguments = NumArgs; 168685befeb5f6472585bae473a6389e47cab9eac67Chris Lattner ArgumentList = PPAllocator.Allocate<IdentifierInfo*>(NumArgs); 169cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner for (unsigned i = 0; i != NumArgs; ++i) 170cf29e0716bb3ecbbc15b74cd648367d6b075fdf0Chris Lattner ArgumentList[i] = List[i]; 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17325c9648909193d380a4e135d2e3d25394ba12922Chris Lattner /// Arguments - The list of arguments for a function-like macro. This can be 17425c9648909193d380a4e135d2e3d25394ba12922Chris Lattner /// empty, for, e.g. "#define X()". 17525c9648909193d380a4e135d2e3d25394ba12922Chris Lattner typedef IdentifierInfo* const *arg_iterator; 176f73903a1ded46748e1dfda151f5d037b7b3d31f9Chris Lattner bool arg_empty() const { return NumArguments == 0; } 17725c9648909193d380a4e135d2e3d25394ba12922Chris Lattner arg_iterator arg_begin() const { return ArgumentList; } 17825c9648909193d380a4e135d2e3d25394ba12922Chris Lattner arg_iterator arg_end() const { return ArgumentList+NumArguments; } 17925c9648909193d380a4e135d2e3d25394ba12922Chris Lattner unsigned getNumArgs() const { return NumArguments; } 1801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArgumentNum - Return the argument number of the specified identifier, 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// or -1 if the identifier is not a formal argument identifier. 18325c9648909193d380a4e135d2e3d25394ba12922Chris Lattner int getArgumentNum(IdentifierInfo *Arg) const { 18425c9648909193d380a4e135d2e3d25394ba12922Chris Lattner for (arg_iterator I = arg_begin(), E = arg_end(); I != E; ++I) 18525c9648909193d380a4e135d2e3d25394ba12922Chris Lattner if (*I == Arg) return I-arg_begin(); 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return -1; 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Function/Object-likeness. Keep track of whether this macro has formal 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// parameters. 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void setIsFunctionLike() { IsFunctionLike = true; } 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFunctionLike() const { return IsFunctionLike; } 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isObjectLike() const { return !IsFunctionLike; } 1941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Varargs querying methods. This can only be set for function-like macros. 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void setIsC99Varargs() { IsC99Varargs = true; } 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void setIsGNUVarargs() { IsGNUVarargs = true; } 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isC99Varargs() const { return IsC99Varargs; } 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isGNUVarargs() const { return IsGNUVarargs; } 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isVariadic() const { return IsC99Varargs | IsGNUVarargs; } 2011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isBuiltinMacro - Return true if this macro is a builtin macro, such as 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// __LINE__, which requires processing before expansion. 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBuiltinMacro() const { return IsBuiltinMacro; } 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2063c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl /// isFromAST - Return true if this macro was loaded from an AST file. 2073c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl bool isFromAST() const { return IsFromAST; } 208083abdf67f157e9d2ab5a8c9d5e71240479d3c99Sebastian Redl 2093c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl /// setIsFromAST - Set whether this macro was loaded from an AST file. 2103c7f4134603d04b44f997b43c0a9def270f25386Sebastian Redl void setIsFromAST(bool FromAST = true) { IsFromAST = FromAST; } 211083abdf67f157e9d2ab5a8c9d5e71240479d3c99Sebastian Redl 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isUsed - Return false if this macro is defined in the main file and has 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// not yet been used. 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isUsed() const { return IsUsed; } 2151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 216f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner /// isAllowRedefinitionsWithoutWarning - Return true if this macro can be 217f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner /// redefined without warning. 218f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner bool isAllowRedefinitionsWithoutWarning() const { 219f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner return IsAllowRedefinitionsWithoutWarning; 220f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner } 221f47724bf78299c7a50f008e0443c5f9f9f279ddcChris Lattner 2220827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis /// \brief Return true if we should emit a warning if the macro is unused. 2230827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis bool isWarnIfUnused() const { 2240827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis return IsWarnIfUnused; 2250827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis } 2260827408865e32789e0ec4b8113a302ccdc531423Argyrios Kyrtzidis 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumTokens - Return the number of tokens that this macro expands to. 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumTokens() const { 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ReplacementTokens.size(); 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 233d217773f106856a11879ec79dc468efefaf2ee75Chris Lattner const Token &getReplacementToken(unsigned Tok) const { 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Tok < ReplacementTokens.size() && "Invalid token #"); 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ReplacementTokens[Tok]; 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 238686775deca8b8685eb90801495880e3abdd844c2Chris Lattner typedef SmallVector<Token, 8>::const_iterator tokens_iterator; 239c215bd659d8266a1d6b66ce231a63405a4c61dafChris Lattner tokens_iterator tokens_begin() const { return ReplacementTokens.begin(); } 240c215bd659d8266a1d6b66ce231a63405a4c61dafChris Lattner tokens_iterator tokens_end() const { return ReplacementTokens.end(); } 241f73903a1ded46748e1dfda151f5d037b7b3d31f9Chris Lattner bool tokens_empty() const { return ReplacementTokens.empty(); } 2421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// AddTokenToBody - Add the specified token to the replacement text for the 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// macro. 245d217773f106856a11879ec79dc468efefaf2ee75Chris Lattner void AddTokenToBody(const Token &Tok) { 246b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis assert(!IsDefinitionLengthCached && 247b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis "Changing replacement tokens after definition length got calculated"); 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReplacementTokens.push_back(Tok); 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isEnabled - Return true if this macro is enabled: in other words, that we 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// are not currently in an expansion of this macro. 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEnabled() const { return !IsDisabled; } 2541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EnableMacro() { 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(IsDisabled && "Cannot enable an already-enabled macro!"); 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IsDisabled = false; 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void DisableMacro() { 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!IsDisabled && "Cannot disable an already-disabled macro!"); 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IsDisabled = true; 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 264b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis 265b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidisprivate: 266b73377eeb3eff76be134203aebb6068244b177f3Argyrios Kyrtzidis unsigned getDefinitionLengthSlow(SourceManager &SM) const; 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 272