1 //===--- Types.cpp - Driver input & temporary type information ------------===// 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 #include "clang/Driver/Types.h" 11 12 #include "llvm/ADT/StringSwitch.h" 13 #include <string.h> 14 #include <cassert> 15 16 using namespace clang::driver; 17 using namespace clang::driver::types; 18 19 struct TypeInfo { 20 const char *Name; 21 const char *Flags; 22 const char *TempSuffix; 23 ID PreprocessedType; 24 }; 25 26 static const TypeInfo TypeInfos[] = { 27 #define TYPE(NAME, ID, PP_TYPE, TEMP_SUFFIX, FLAGS) \ 28 { NAME, FLAGS, TEMP_SUFFIX, TY_##PP_TYPE, }, 29 #include "clang/Driver/Types.def" 30 #undef TYPE 31 }; 32 static const unsigned numTypes = sizeof(TypeInfos) / sizeof(TypeInfos[0]); 33 34 static const TypeInfo &getInfo(unsigned id) { 35 assert(id > 0 && id - 1 < numTypes && "Invalid Type ID."); 36 return TypeInfos[id - 1]; 37 } 38 39 const char *types::getTypeName(ID Id) { 40 return getInfo(Id).Name; 41 } 42 43 types::ID types::getPreprocessedType(ID Id) { 44 return getInfo(Id).PreprocessedType; 45 } 46 47 const char *types::getTypeTempSuffix(ID Id) { 48 return getInfo(Id).TempSuffix; 49 } 50 51 bool types::onlyAssembleType(ID Id) { 52 return strchr(getInfo(Id).Flags, 'a'); 53 } 54 55 bool types::onlyPrecompileType(ID Id) { 56 return strchr(getInfo(Id).Flags, 'p'); 57 } 58 59 bool types::canTypeBeUserSpecified(ID Id) { 60 return strchr(getInfo(Id).Flags, 'u'); 61 } 62 63 bool types::appendSuffixForType(ID Id) { 64 return strchr(getInfo(Id).Flags, 'A'); 65 } 66 67 bool types::canLipoType(ID Id) { 68 return (Id == TY_Nothing || 69 Id == TY_Image || 70 Id == TY_Object); 71 } 72 73 bool types::isAcceptedByClang(ID Id) { 74 switch (Id) { 75 default: 76 return false; 77 78 case TY_Asm: 79 case TY_C: case TY_PP_C: 80 case TY_CL: 81 case TY_CUDA: 82 case TY_ObjC: case TY_PP_ObjC: case TY_PP_ObjC_Alias: 83 case TY_CXX: case TY_PP_CXX: 84 case TY_ObjCXX: case TY_PP_ObjCXX: case TY_PP_ObjCXX_Alias: 85 case TY_CHeader: case TY_PP_CHeader: 86 case TY_CLHeader: 87 case TY_ObjCHeader: case TY_PP_ObjCHeader: 88 case TY_CXXHeader: case TY_PP_CXXHeader: 89 case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: 90 case TY_AST: 91 case TY_LLVM_IR: case TY_LLVM_BC: 92 return true; 93 } 94 } 95 96 bool types::isOnlyAcceptedByClang(ID Id) { 97 switch (Id) { 98 default: 99 return false; 100 101 case TY_AST: 102 case TY_LLVM_IR: 103 case TY_LLVM_BC: 104 case TY_RewrittenObjC: 105 case TY_RewrittenLegacyObjC: 106 return true; 107 } 108 } 109 110 bool types::isObjC(ID Id) { 111 switch (Id) { 112 default: 113 return false; 114 115 case TY_ObjC: case TY_PP_ObjC: case TY_PP_ObjC_Alias: 116 case TY_ObjCXX: case TY_PP_ObjCXX: 117 case TY_ObjCHeader: case TY_PP_ObjCHeader: 118 case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: case TY_PP_ObjCXX_Alias: 119 return true; 120 } 121 } 122 123 bool types::isCXX(ID Id) { 124 switch (Id) { 125 default: 126 return false; 127 128 case TY_CXX: case TY_PP_CXX: 129 case TY_ObjCXX: case TY_PP_ObjCXX: 130 case TY_CXXHeader: case TY_PP_CXXHeader: 131 case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: 132 return true; 133 } 134 } 135 136 types::ID types::lookupTypeForExtension(const char *Ext) { 137 return llvm::StringSwitch<types::ID>(Ext) 138 .Case("c", TY_C) 139 .Case("i", TY_PP_C) 140 .Case("m", TY_ObjC) 141 .Case("M", TY_ObjCXX) 142 .Case("h", TY_CHeader) 143 .Case("C", TY_CXX) 144 .Case("H", TY_CXXHeader) 145 .Case("f", TY_PP_Fortran) 146 .Case("F", TY_Fortran) 147 .Case("s", TY_PP_Asm) 148 .Case("S", TY_Asm) 149 .Case("o", TY_Object) 150 .Case("ii", TY_PP_CXX) 151 .Case("mi", TY_PP_ObjC) 152 .Case("mm", TY_ObjCXX) 153 .Case("bc", TY_LLVM_BC) 154 .Case("cc", TY_CXX) 155 .Case("CC", TY_CXX) 156 .Case("cl", TY_CL) 157 .Case("cp", TY_CXX) 158 .Case("cu", TY_CUDA) 159 .Case("hh", TY_CXXHeader) 160 .Case("ll", TY_LLVM_IR) 161 .Case("hpp", TY_CXXHeader) 162 .Case("ads", TY_Ada) 163 .Case("adb", TY_Ada) 164 .Case("ast", TY_AST) 165 .Case("c++", TY_CXX) 166 .Case("C++", TY_CXX) 167 .Case("cxx", TY_CXX) 168 .Case("cpp", TY_CXX) 169 .Case("CPP", TY_CXX) 170 .Case("CXX", TY_CXX) 171 .Case("for", TY_PP_Fortran) 172 .Case("FOR", TY_PP_Fortran) 173 .Case("fpp", TY_Fortran) 174 .Case("FPP", TY_Fortran) 175 .Case("f90", TY_PP_Fortran) 176 .Case("f95", TY_PP_Fortran) 177 .Case("F90", TY_Fortran) 178 .Case("F95", TY_Fortran) 179 .Case("mii", TY_PP_ObjCXX) 180 .Default(TY_INVALID); 181 } 182 183 types::ID types::lookupTypeForTypeSpecifier(const char *Name) { 184 unsigned N = strlen(Name); 185 186 for (unsigned i=0; i<numTypes; ++i) { 187 types::ID Id = (types::ID) (i + 1); 188 if (canTypeBeUserSpecified(Id) && 189 memcmp(Name, getInfo(Id).Name, N + 1) == 0) 190 return Id; 191 } 192 193 return TY_INVALID; 194 } 195 196 // FIXME: Why don't we just put this list in the defs file, eh. 197 198 unsigned types::getNumCompilationPhases(ID Id) { 199 if (Id == TY_Object) 200 return 1; 201 202 unsigned N = 0; 203 if (getPreprocessedType(Id) != TY_INVALID) 204 N += 1; 205 206 if (onlyAssembleType(Id)) 207 return N + 2; // assemble, link 208 if (onlyPrecompileType(Id)) 209 return N + 1; // precompile 210 211 return N + 3; // compile, assemble, link 212 } 213 214 phases::ID types::getCompilationPhase(ID Id, unsigned N) { 215 assert(N < getNumCompilationPhases(Id) && "Invalid index."); 216 217 if (Id == TY_Object) 218 return phases::Link; 219 220 if (getPreprocessedType(Id) != TY_INVALID) { 221 if (N == 0) 222 return phases::Preprocess; 223 --N; 224 } 225 226 if (onlyAssembleType(Id)) 227 return N == 0 ? phases::Assemble : phases::Link; 228 229 if (onlyPrecompileType(Id)) 230 return phases::Precompile; 231 232 if (N == 0) 233 return phases::Compile; 234 if (N == 1) 235 return phases::Assemble; 236 237 return phases::Link; 238 } 239 240 ID types::lookupCXXTypeForCType(ID Id) { 241 switch (Id) { 242 default: 243 return Id; 244 245 case types::TY_C: 246 return types::TY_CXX; 247 case types::TY_PP_C: 248 return types::TY_PP_CXX; 249 case types::TY_CHeader: 250 return types::TY_CXXHeader; 251 case types::TY_PP_CHeader: 252 return types::TY_PP_CXXHeader; 253 } 254 } 255
