1 //===--- LangStandard.h -----------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_CLANG_FRONTEND_LANGSTANDARD_H 11 #define LLVM_CLANG_FRONTEND_LANGSTANDARD_H 12 13 #include "clang/Basic/LLVM.h" 14 #include "llvm/ADT/StringRef.h" 15 16 namespace clang { 17 18 namespace frontend { 19 20 enum LangFeatures { 21 LineComment = (1 << 0), 22 C89 = (1 << 1), 23 C99 = (1 << 2), 24 C11 = (1 << 3), 25 CPlusPlus = (1 << 4), 26 CPlusPlus11 = (1 << 5), 27 CPlusPlus14 = (1 << 6), 28 CPlusPlus1z = (1 << 7), 29 Digraphs = (1 << 8), 30 GNUMode = (1 << 9), 31 HexFloat = (1 << 10), 32 ImplicitInt = (1 << 11) 33 }; 34 35 } 36 37 /// LangStandard - Information about the properties of a particular language 38 /// standard. 39 struct LangStandard { 40 enum Kind { 41 #define LANGSTANDARD(id, name, desc, features) \ 42 lang_##id, 43 #include "clang/Frontend/LangStandards.def" 44 lang_unspecified 45 }; 46 47 const char *ShortName; 48 const char *Description; 49 unsigned Flags; 50 51 public: 52 /// getName - Get the name of this standard. 53 const char *getName() const { return ShortName; } 54 55 /// getDescription - Get the description of this standard. 56 const char *getDescription() const { return Description; } 57 58 /// Language supports '//' comments. 59 bool hasLineComments() const { return Flags & frontend::LineComment; } 60 61 /// isC89 - Language is a superset of C89. 62 bool isC89() const { return Flags & frontend::C89; } 63 64 /// isC99 - Language is a superset of C99. 65 bool isC99() const { return Flags & frontend::C99; } 66 67 /// isC11 - Language is a superset of C11. 68 bool isC11() const { return Flags & frontend::C11; } 69 70 /// isCPlusPlus - Language is a C++ variant. 71 bool isCPlusPlus() const { return Flags & frontend::CPlusPlus; } 72 73 /// isCPlusPlus11 - Language is a C++11 variant (or later). 74 bool isCPlusPlus11() const { return Flags & frontend::CPlusPlus11; } 75 76 /// isCPlusPlus14 - Language is a C++14 variant (or later). 77 bool isCPlusPlus14() const { return Flags & frontend::CPlusPlus14; } 78 79 /// isCPlusPlus1z - Language is a C++17 variant (or later). 80 bool isCPlusPlus1z() const { return Flags & frontend::CPlusPlus1z; } 81 82 /// hasDigraphs - Language supports digraphs. 83 bool hasDigraphs() const { return Flags & frontend::Digraphs; } 84 85 /// isGNUMode - Language includes GNU extensions. 86 bool isGNUMode() const { return Flags & frontend::GNUMode; } 87 88 /// hasHexFloats - Language supports hexadecimal float constants. 89 bool hasHexFloats() const { return Flags & frontend::HexFloat; } 90 91 /// hasImplicitInt - Language allows variables to be typed as int implicitly. 92 bool hasImplicitInt() const { return Flags & frontend::ImplicitInt; } 93 94 static const LangStandard &getLangStandardForKind(Kind K); 95 static const LangStandard *getLangStandardForName(StringRef Name); 96 }; 97 98 } // end namespace clang 99 100 #endif 101
