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 return true; 106 } 107 } 108 109 bool types::isObjC(ID Id) { 110 switch (Id) { 111 default: 112 return false; 113 114 case TY_ObjC: case TY_PP_ObjC: case TY_PP_ObjC_Alias: 115 case TY_ObjCXX: case TY_PP_ObjCXX: 116 case TY_ObjCHeader: case TY_PP_ObjCHeader: 117 case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: case TY_PP_ObjCXX_Alias: 118 return true; 119 } 120 } 121 122 bool types::isCXX(ID Id) { 123 switch (Id) { 124 default: 125 return false; 126 127 case TY_CXX: case TY_PP_CXX: 128 case TY_ObjCXX: case TY_PP_ObjCXX: 129 case TY_CXXHeader: case TY_PP_CXXHeader: 130 case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: 131 return true; 132 } 133 } 134 135 types::ID types::lookupTypeForExtension(const char *Ext) { 136 return llvm::StringSwitch<types::ID>(Ext) 137 .Case("c", TY_C) 138 .Case("i", TY_PP_C) 139 .Case("m", TY_ObjC) 140 .Case("M", TY_ObjCXX) 141 .Case("h", TY_CHeader) 142 .Case("C", TY_CXX) 143 .Case("H", TY_CXXHeader) 144 .Case("f", TY_PP_Fortran) 145 .Case("F", TY_Fortran) 146 .Case("s", TY_PP_Asm) 147 .Case("S", TY_Asm) 148 .Case("o", TY_Object) 149 .Case("ii", TY_PP_CXX) 150 .Case("mi", TY_PP_ObjC) 151 .Case("mm", TY_ObjCXX) 152 .Case("bc", TY_LLVM_BC) 153 .Case("cc", TY_CXX) 154 .Case("CC", TY_CXX) 155 .Case("cl", TY_CL) 156 .Case("cp", TY_CXX) 157 .Case("cu", TY_CUDA) 158 .Case("hh", TY_CXXHeader) 159 .Case("ll", TY_LLVM_IR) 160 .Case("hpp", TY_CXXHeader) 161 .Case("ads", TY_Ada) 162 .Case("adb", TY_Ada) 163 .Case("ast", TY_AST) 164 .Case("c++", TY_CXX) 165 .Case("C++", TY_CXX) 166 .Case("cxx", TY_CXX) 167 .Case("cpp", TY_CXX) 168 .Case("CPP", TY_CXX) 169 .Case("CXX", TY_CXX) 170 .Case("for", TY_PP_Fortran) 171 .Case("FOR", TY_PP_Fortran) 172 .Case("fpp", TY_Fortran) 173 .Case("FPP", TY_Fortran) 174 .Case("f90", TY_PP_Fortran) 175 .Case("f95", TY_PP_Fortran) 176 .Case("F90", TY_Fortran) 177 .Case("F95", TY_Fortran) 178 .Case("mii", TY_PP_ObjCXX) 179 .Default(TY_INVALID); 180 } 181 182 types::ID types::lookupTypeForTypeSpecifier(const char *Name) { 183 unsigned N = strlen(Name); 184 185 for (unsigned i=0; i<numTypes; ++i) { 186 types::ID Id = (types::ID) (i + 1); 187 if (canTypeBeUserSpecified(Id) && 188 memcmp(Name, getInfo(Id).Name, N + 1) == 0) 189 return Id; 190 } 191 192 return TY_INVALID; 193 } 194 195 // FIXME: Why don't we just put this list in the defs file, eh. 196 197 unsigned types::getNumCompilationPhases(ID Id) { 198 if (Id == TY_Object) 199 return 1; 200 201 unsigned N = 0; 202 if (getPreprocessedType(Id) != TY_INVALID) 203 N += 1; 204 205 if (onlyAssembleType(Id)) 206 return N + 2; // assemble, link 207 if (onlyPrecompileType(Id)) 208 return N + 1; // precompile 209 210 return N + 3; // compile, assemble, link 211 } 212 213 phases::ID types::getCompilationPhase(ID Id, unsigned N) { 214 assert(N < getNumCompilationPhases(Id) && "Invalid index."); 215 216 if (Id == TY_Object) 217 return phases::Link; 218 219 if (getPreprocessedType(Id) != TY_INVALID) { 220 if (N == 0) 221 return phases::Preprocess; 222 --N; 223 } 224 225 if (onlyAssembleType(Id)) 226 return N == 0 ? phases::Assemble : phases::Link; 227 228 if (onlyPrecompileType(Id)) 229 return phases::Precompile; 230 231 if (N == 0) 232 return phases::Compile; 233 if (N == 1) 234 return phases::Assemble; 235 236 return phases::Link; 237 } 238 239 ID types::lookupCXXTypeForCType(ID Id) { 240 switch (Id) { 241 default: 242 return Id; 243 244 case types::TY_C: 245 return types::TY_CXX; 246 case types::TY_PP_C: 247 return types::TY_PP_CXX; 248 case types::TY_CHeader: 249 return types::TY_CXXHeader; 250 case types::TY_PP_CHeader: 251 return types::TY_PP_CXXHeader; 252 } 253 } 254
