| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | #include "clang/Basic/IdentifierTable.h" |
| 15 | #include "clang/Basic/CharInfo.h" |
| 16 | #include "clang/Basic/LangOptions.h" |
| 17 | #include "clang/Basic/OperatorKinds.h" |
| 18 | #include "clang/Basic/Specifiers.h" |
| 19 | #include "clang/Basic/TokenKinds.h" |
| 20 | #include "llvm/ADT/DenseMapInfo.h" |
| 21 | #include "llvm/ADT/FoldingSet.h" |
| 22 | #include "llvm/ADT/SmallString.h" |
| 23 | #include "llvm/ADT/StringMap.h" |
| 24 | #include "llvm/ADT/StringRef.h" |
| 25 | #include "llvm/Support/Allocator.h" |
| 26 | #include "llvm/Support/ErrorHandling.h" |
| 27 | #include "llvm/Support/raw_ostream.h" |
| 28 | #include <cassert> |
| 29 | #include <cstdio> |
| 30 | #include <cstring> |
| 31 | #include <string> |
| 32 | |
| 33 | using namespace clang; |
| 34 | |
| 35 | |
| 36 | |
| 37 | |
| 38 | |
| 39 | IdentifierIterator::~IdentifierIterator() = default; |
| 40 | |
| 41 | IdentifierInfoLookup::~IdentifierInfoLookup() = default; |
| 42 | |
| 43 | namespace { |
| 44 | |
| 45 | |
| 46 | |
| 47 | class EmptyLookupIterator : public IdentifierIterator |
| 48 | { |
| 49 | public: |
| 50 | StringRef Next() override { return StringRef(); } |
| 51 | }; |
| 52 | |
| 53 | } |
| 54 | |
| 55 | IdentifierIterator *IdentifierInfoLookup::getIdentifiers() { |
| 56 | return new EmptyLookupIterator(); |
| 57 | } |
| 58 | |
| 59 | IdentifierTable::IdentifierTable(IdentifierInfoLookup *ExternalLookup) |
| 60 | : HashTable(8192), |
| 61 | ExternalLookup(ExternalLookup) {} |
| 62 | |
| 63 | IdentifierTable::IdentifierTable(const LangOptions &LangOpts, |
| 64 | IdentifierInfoLookup *ExternalLookup) |
| 65 | : IdentifierTable(ExternalLookup) { |
| 66 | |
| 67 | |
| 68 | AddKeywords(LangOpts); |
| 69 | } |
| 70 | |
| 71 | |
| 72 | |
| 73 | |
| 74 | |
| 75 | |
| 76 | namespace { |
| 77 | |
| 78 | enum { |
| 79 | KEYC99 = 0x1, |
| 80 | KEYCXX = 0x2, |
| 81 | KEYCXX11 = 0x4, |
| 82 | KEYGNU = 0x8, |
| 83 | KEYMS = 0x10, |
| 84 | BOOLSUPPORT = 0x20, |
| 85 | KEYALTIVEC = 0x40, |
| 86 | KEYNOCXX = 0x80, |
| 87 | KEYBORLAND = 0x100, |
| 88 | KEYOPENCLC = 0x200, |
| 89 | KEYC11 = 0x400, |
| 90 | KEYNOMS18 = 0x800, |
| 91 | KEYNOOPENCL = 0x1000, |
| 92 | WCHARSUPPORT = 0x2000, |
| 93 | HALFSUPPORT = 0x4000, |
| 94 | CHAR8SUPPORT = 0x8000, |
| 95 | KEYCONCEPTS = 0x10000, |
| 96 | KEYOBJC = 0x20000, |
| 97 | KEYZVECTOR = 0x40000, |
| 98 | KEYCOROUTINES = 0x80000, |
| 99 | KEYMODULES = 0x100000, |
| 100 | KEYCXX2A = 0x200000, |
| 101 | KEYOPENCLCXX = 0x400000, |
| 102 | KEYMSCOMPAT = 0x800000, |
| 103 | KEYALLCXX = KEYCXX | KEYCXX11 | KEYCXX2A, |
| 104 | KEYALL = (0xffffff & ~KEYNOMS18 & |
| 105 | ~KEYNOOPENCL) |
| 106 | }; |
| 107 | |
| 108 | |
| 109 | enum KeywordStatus { |
| 110 | KS_Disabled, |
| 111 | KS_Extension, |
| 112 | KS_Enabled, |
| 113 | KS_Future |
| 114 | }; |
| 115 | |
| 116 | } |
| 117 | |
| 118 | |
| 119 | |
| 120 | static KeywordStatus getKeywordStatus(const LangOptions &LangOpts, |
| 121 | unsigned Flags) { |
| 122 | if (Flags == KEYALL) return KS_Enabled; |
| 123 | if (LangOpts.CPlusPlus && (Flags & KEYCXX)) return KS_Enabled; |
| 124 | if (LangOpts.CPlusPlus11 && (Flags & KEYCXX11)) return KS_Enabled; |
| 125 | if (LangOpts.CPlusPlus2a && (Flags & KEYCXX2A)) return KS_Enabled; |
| 126 | if (LangOpts.C99 && (Flags & KEYC99)) return KS_Enabled; |
| 127 | if (LangOpts.GNUKeywords && (Flags & KEYGNU)) return KS_Extension; |
| 128 | if (LangOpts.MicrosoftExt && (Flags & KEYMS)) return KS_Extension; |
| 129 | if (LangOpts.MSVCCompat && (Flags & KEYMSCOMPAT)) return KS_Enabled; |
| 130 | if (LangOpts.Borland && (Flags & KEYBORLAND)) return KS_Extension; |
| 131 | if (LangOpts.Bool && (Flags & BOOLSUPPORT)) return KS_Enabled; |
| 132 | if (LangOpts.Half && (Flags & HALFSUPPORT)) return KS_Enabled; |
| 133 | if (LangOpts.WChar && (Flags & WCHARSUPPORT)) return KS_Enabled; |
| 134 | if (LangOpts.Char8 && (Flags & CHAR8SUPPORT)) return KS_Enabled; |
| 135 | if (LangOpts.AltiVec && (Flags & KEYALTIVEC)) return KS_Enabled; |
| 136 | if (LangOpts.ZVector && (Flags & KEYZVECTOR)) return KS_Enabled; |
| 137 | if (LangOpts.OpenCL && !LangOpts.OpenCLCPlusPlus && (Flags & KEYOPENCLC)) |
| 138 | return KS_Enabled; |
| 139 | if (LangOpts.OpenCLCPlusPlus && (Flags & KEYOPENCLCXX)) return KS_Enabled; |
| 140 | if (!LangOpts.CPlusPlus && (Flags & KEYNOCXX)) return KS_Enabled; |
| 141 | if (LangOpts.C11 && (Flags & KEYC11)) return KS_Enabled; |
| 142 | |
| 143 | |
| 144 | if (LangOpts.ObjC && (Flags & KEYOBJC)) return KS_Enabled; |
| 145 | if (LangOpts.ConceptsTS && (Flags & KEYCONCEPTS)) return KS_Enabled; |
| 146 | if (LangOpts.Coroutines && (Flags & KEYCOROUTINES)) return KS_Enabled; |
| 147 | if (LangOpts.ModulesTS && (Flags & KEYMODULES)) return KS_Enabled; |
| 148 | if (LangOpts.CPlusPlus && (Flags & KEYALLCXX)) return KS_Future; |
| 149 | return KS_Disabled; |
| 150 | } |
| 151 | |
| 152 | |
| 153 | |
| 154 | |
| 155 | static void AddKeyword(StringRef Keyword, |
| 156 | tok::TokenKind TokenCode, unsigned Flags, |
| 157 | const LangOptions &LangOpts, IdentifierTable &Table) { |
| 158 | KeywordStatus AddResult = getKeywordStatus(LangOpts, Flags); |
| 159 | |
| 160 | |
| 161 | if (LangOpts.MSVCCompat && (Flags & KEYNOMS18) && |
| 162 | !LangOpts.isCompatibleWithMSVC(LangOptions::MSVC2015)) |
| 163 | return; |
| 164 | |
| 165 | |
| 166 | if (LangOpts.OpenCL && (Flags & KEYNOOPENCL)) |
| 167 | return; |
| 168 | |
| 169 | |
| 170 | if (AddResult == KS_Disabled) return; |
| 171 | |
| 172 | IdentifierInfo &Info = |
| 173 | Table.get(Keyword, AddResult == KS_Future ? tok::identifier : TokenCode); |
| 174 | Info.setIsExtensionToken(AddResult == KS_Extension); |
| 175 | Info.setIsFutureCompatKeyword(AddResult == KS_Future); |
| 176 | } |
| 177 | |
| 178 | |
| 179 | |
| 180 | static void AddCXXOperatorKeyword(StringRef Keyword, |
| 181 | tok::TokenKind TokenCode, |
| 182 | IdentifierTable &Table) { |
| 183 | IdentifierInfo &Info = Table.get(Keyword, TokenCode); |
| 184 | Info.setIsCPlusPlusOperatorKeyword(); |
| 185 | } |
| 186 | |
| 187 | |
| 188 | |
| 189 | static void AddObjCKeyword(StringRef Name, |
| 190 | tok::ObjCKeywordKind ObjCID, |
| 191 | IdentifierTable &Table) { |
| 192 | Table.get(Name).setObjCKeywordID(ObjCID); |
| 193 | } |
| 194 | |
| 195 | |
| 196 | |
| 197 | void IdentifierTable::AddKeywords(const LangOptions &LangOpts) { |
| 198 | |
| 199 | #define KEYWORD(NAME, FLAGS) \ |
| 200 | AddKeyword(StringRef(#NAME), tok::kw_ ## NAME, \ |
| 201 | FLAGS, LangOpts, *this); |
| 202 | #define ALIAS(NAME, TOK, FLAGS) \ |
| 203 | AddKeyword(StringRef(NAME), tok::kw_ ## TOK, \ |
| 204 | FLAGS, LangOpts, *this); |
| 205 | #define CXX_KEYWORD_OPERATOR(NAME, ALIAS) \ |
| 206 | if (LangOpts.CXXOperatorNames) \ |
| 207 | AddCXXOperatorKeyword(StringRef(#NAME), tok::ALIAS, *this); |
| 208 | #define OBJC_AT_KEYWORD(NAME) \ |
| 209 | if (LangOpts.ObjC) \ |
| 210 | AddObjCKeyword(StringRef(#NAME), tok::objc_##NAME, *this); |
| 211 | #define TESTING_KEYWORD(NAME, FLAGS) |
| 212 | #include "clang/Basic/TokenKinds.def" |
| 213 | |
| 214 | if (LangOpts.ParseUnknownAnytype) |
| 215 | AddKeyword("__unknown_anytype", tok::kw___unknown_anytype, KEYALL, |
| 216 | LangOpts, *this); |
| 217 | |
| 218 | if (LangOpts.DeclSpecKeyword) |
| 219 | AddKeyword("__declspec", tok::kw___declspec, KEYALL, LangOpts, *this); |
| 220 | |
| 221 | |
| 222 | get("import").setModulesImport(true); |
| 223 | } |
| 224 | |
| 225 | |
| 226 | |
| 227 | |
| 228 | static KeywordStatus getTokenKwStatus(const LangOptions &LangOpts, |
| 229 | tok::TokenKind K) { |
| 230 | switch (K) { |
| 231 | #define KEYWORD(NAME, FLAGS) \ |
| 232 | case tok::kw_##NAME: return getKeywordStatus(LangOpts, FLAGS); |
| 233 | #include "clang/Basic/TokenKinds.def" |
| 234 | default: return KS_Disabled; |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | |
| 239 | |
| 240 | bool IdentifierInfo::isKeyword(const LangOptions &LangOpts) const { |
| 241 | switch (getTokenKwStatus(LangOpts, getTokenID())) { |
| 242 | case KS_Enabled: |
| 243 | case KS_Extension: |
| 244 | return true; |
| 245 | default: |
| 246 | return false; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | |
| 251 | |
| 252 | bool IdentifierInfo::isCPlusPlusKeyword(const LangOptions &LangOpts) const { |
| 253 | if (!LangOpts.CPlusPlus || !isKeyword(LangOpts)) |
| 254 | return false; |
| 255 | |
| 256 | |
| 257 | LangOptions LangOptsNoCPP = LangOpts; |
| 258 | LangOptsNoCPP.CPlusPlus = false; |
| 259 | LangOptsNoCPP.CPlusPlus11 = false; |
| 260 | LangOptsNoCPP.CPlusPlus2a = false; |
| 261 | return !isKeyword(LangOptsNoCPP); |
| 262 | } |
| 263 | |
| 264 | tok::PPKeywordKind IdentifierInfo::getPPKeywordID() const { |
| 265 | |
| 266 | |
| 267 | |
| 268 | |
| 269 | |
| 270 | #define HASH(LEN, FIRST, THIRD) \ |
| 271 | (LEN << 5) + (((FIRST-'a') + (THIRD-'a')) & 31) |
| 272 | #define CASE(LEN, FIRST, THIRD, NAME) \ |
| 273 | case HASH(LEN, FIRST, THIRD): \ |
| 274 | return memcmp(Name, #NAME, LEN) ? tok::pp_not_keyword : tok::pp_ ## NAME |
| 275 | |
| 276 | unsigned Len = getLength(); |
| 277 | if (Len < 2) return tok::pp_not_keyword; |
| 278 | const char *Name = getNameStart(); |
| 279 | switch (HASH(Len, Name[0], Name[2])) { |
| 280 | default: return tok::pp_not_keyword; |
| 281 | CASE( 2, 'i', '\0', if); |
| 282 | CASE( 4, 'e', 'i', elif); |
| 283 | CASE( 4, 'e', 's', else); |
| 284 | CASE( 4, 'l', 'n', line); |
| 285 | CASE( 4, 's', 'c', sccs); |
| 286 | CASE( 5, 'e', 'd', endif); |
| 287 | CASE( 5, 'e', 'r', error); |
| 288 | CASE( 5, 'i', 'e', ident); |
| 289 | CASE( 5, 'i', 'd', ifdef); |
| 290 | CASE( 5, 'u', 'd', undef); |
| 291 | |
| 292 | CASE( 6, 'a', 's', assert); |
| 293 | CASE( 6, 'd', 'f', define); |
| 294 | CASE( 6, 'i', 'n', ifndef); |
| 295 | CASE( 6, 'i', 'p', import); |
| 296 | CASE( 6, 'p', 'a', pragma); |
| 297 | |
| 298 | CASE( 7, 'd', 'f', defined); |
| 299 | CASE( 7, 'i', 'c', include); |
| 300 | CASE( 7, 'w', 'r', warning); |
| 301 | |
| 302 | CASE( 8, 'u', 'a', unassert); |
| 303 | CASE(12, 'i', 'c', include_next); |
| 304 | |
| 305 | CASE(14, '_', 'p', __public_macro); |
| 306 | |
| 307 | CASE(15, '_', 'p', __private_macro); |
| 308 | |
| 309 | CASE(16, '_', 'i', __include_macros); |
| 310 | #undef CASE |
| 311 | #undef HASH |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | |
| 316 | |
| 317 | |
| 318 | |
| 319 | |
| 320 | |
| 321 | void IdentifierTable::PrintStats() const { |
| 322 | unsigned NumBuckets = HashTable.getNumBuckets(); |
| 323 | unsigned NumIdentifiers = HashTable.getNumItems(); |
| 324 | unsigned NumEmptyBuckets = NumBuckets-NumIdentifiers; |
| 325 | unsigned AverageIdentifierSize = 0; |
| 326 | unsigned MaxIdentifierLength = 0; |
| 327 | |
| 328 | |
| 329 | for (llvm::StringMap<IdentifierInfo*, llvm::BumpPtrAllocator>::const_iterator |
| 330 | I = HashTable.begin(), E = HashTable.end(); I != E; ++I) { |
| 331 | unsigned IdLen = I->getKeyLength(); |
| 332 | AverageIdentifierSize += IdLen; |
| 333 | if (MaxIdentifierLength < IdLen) |
| 334 | MaxIdentifierLength = IdLen; |
| 335 | } |
| 336 | |
| 337 | fprintf(stderr, "\n*** Identifier Table Stats:\n"); |
| 338 | fprintf(stderr, "# Identifiers: %d\n", NumIdentifiers); |
| 339 | fprintf(stderr, "# Empty Buckets: %d\n", NumEmptyBuckets); |
| 340 | fprintf(stderr, "Hash density (#identifiers per bucket): %f\n", |
| 341 | NumIdentifiers/(double)NumBuckets); |
| 342 | fprintf(stderr, "Ave identifier length: %f\n", |
| 343 | (AverageIdentifierSize/(double)NumIdentifiers)); |
| 344 | fprintf(stderr, "Max identifier length: %d\n", MaxIdentifierLength); |
| 345 | |
| 346 | |
| 347 | HashTable.getAllocator().PrintStats(); |
| 348 | } |
| 349 | |
| 350 | |
| 351 | |
| 352 | |
| 353 | |
| 354 | unsigned llvm::DenseMapInfo<clang::Selector>::getHashValue(clang::Selector S) { |
| 355 | return DenseMapInfo<void*>::getHashValue(S.getAsOpaquePtr()); |
| 356 | } |
| 357 | |
| 358 | namespace clang { |
| 359 | |
| 360 | |
| 361 | |
| 362 | |
| 363 | |
| 364 | class alignas(IdentifierInfoAlignment) MultiKeywordSelector |
| 365 | : public detail::DeclarationNameExtra, |
| 366 | public llvm::FoldingSetNode { |
| 367 | MultiKeywordSelector(unsigned nKeys) : DeclarationNameExtra(nKeys) {} |
| 368 | |
| 369 | public: |
| 370 | |
| 371 | MultiKeywordSelector(unsigned nKeys, IdentifierInfo **IIV) |
| 372 | : DeclarationNameExtra(nKeys) { |
| 373 | (0) . __assert_fail ("(nKeys > 1) && \"not a multi-keyword selector\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 373, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert((nKeys > 1) && "not a multi-keyword selector"); |
| 374 | |
| 375 | |
| 376 | IdentifierInfo **KeyInfo = reinterpret_cast<IdentifierInfo **>(this + 1); |
| 377 | for (unsigned i = 0; i != nKeys; ++i) |
| 378 | KeyInfo[i] = IIV[i]; |
| 379 | } |
| 380 | |
| 381 | |
| 382 | std::string getName() const; |
| 383 | |
| 384 | using DeclarationNameExtra::getNumArgs; |
| 385 | |
| 386 | using keyword_iterator = IdentifierInfo *const *; |
| 387 | |
| 388 | keyword_iterator keyword_begin() const { |
| 389 | return reinterpret_cast<keyword_iterator>(this + 1); |
| 390 | } |
| 391 | |
| 392 | keyword_iterator keyword_end() const { |
| 393 | return keyword_begin() + getNumArgs(); |
| 394 | } |
| 395 | |
| 396 | IdentifierInfo *getIdentifierInfoForSlot(unsigned i) const { |
| 397 | (0) . __assert_fail ("i < getNumArgs() && \"getIdentifierInfoForSlot(). illegal index\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 397, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(i < getNumArgs() && "getIdentifierInfoForSlot(): illegal index"); |
| 398 | return keyword_begin()[i]; |
| 399 | } |
| 400 | |
| 401 | static void Profile(llvm::FoldingSetNodeID &ID, keyword_iterator ArgTys, |
| 402 | unsigned NumArgs) { |
| 403 | ID.AddInteger(NumArgs); |
| 404 | for (unsigned i = 0; i != NumArgs; ++i) |
| 405 | ID.AddPointer(ArgTys[i]); |
| 406 | } |
| 407 | |
| 408 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 409 | Profile(ID, keyword_begin(), getNumArgs()); |
| 410 | } |
| 411 | }; |
| 412 | |
| 413 | } |
| 414 | |
| 415 | unsigned Selector::getNumArgs() const { |
| 416 | unsigned IIF = getIdentifierInfoFlag(); |
| 417 | if (IIF <= ZeroArg) |
| 418 | return 0; |
| 419 | if (IIF == OneArg) |
| 420 | return 1; |
| 421 | |
| 422 | MultiKeywordSelector *SI = getMultiKeywordSelector(); |
| 423 | return SI->getNumArgs(); |
| 424 | } |
| 425 | |
| 426 | IdentifierInfo *Selector::getIdentifierInfoForSlot(unsigned argIndex) const { |
| 427 | if (getIdentifierInfoFlag() < MultiArg) { |
| 428 | (0) . __assert_fail ("argIndex == 0 && \"illegal keyword index\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 428, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(argIndex == 0 && "illegal keyword index"); |
| 429 | return getAsIdentifierInfo(); |
| 430 | } |
| 431 | |
| 432 | |
| 433 | MultiKeywordSelector *SI = getMultiKeywordSelector(); |
| 434 | return SI->getIdentifierInfoForSlot(argIndex); |
| 435 | } |
| 436 | |
| 437 | StringRef Selector::getNameForSlot(unsigned int argIndex) const { |
| 438 | IdentifierInfo *II = getIdentifierInfoForSlot(argIndex); |
| 439 | return II ? II->getName() : StringRef(); |
| 440 | } |
| 441 | |
| 442 | std::string MultiKeywordSelector::getName() const { |
| 443 | SmallString<256> Str; |
| 444 | llvm::raw_svector_ostream OS(Str); |
| 445 | for (keyword_iterator I = keyword_begin(), E = keyword_end(); I != E; ++I) { |
| 446 | if (*I) |
| 447 | OS << (*I)->getName(); |
| 448 | OS << ':'; |
| 449 | } |
| 450 | |
| 451 | return OS.str(); |
| 452 | } |
| 453 | |
| 454 | std::string Selector::getAsString() const { |
| 455 | if (InfoPtr == 0) |
| 456 | return "<null selector>"; |
| 457 | |
| 458 | if (getIdentifierInfoFlag() < MultiArg) { |
| 459 | IdentifierInfo *II = getAsIdentifierInfo(); |
| 460 | |
| 461 | if (getNumArgs() == 0) { |
| 462 | (0) . __assert_fail ("II && \"If the number of arguments is 0 then II is guaranteed to \" \"not be null.\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 463, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(II && "If the number of arguments is 0 then II is guaranteed to " |
| 463 | (0) . __assert_fail ("II && \"If the number of arguments is 0 then II is guaranteed to \" \"not be null.\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 463, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true"> "not be null."); |
| 464 | return II->getName(); |
| 465 | } |
| 466 | |
| 467 | if (!II) |
| 468 | return ":"; |
| 469 | |
| 470 | return II->getName().str() + ":"; |
| 471 | } |
| 472 | |
| 473 | |
| 474 | return getMultiKeywordSelector()->getName(); |
| 475 | } |
| 476 | |
| 477 | void Selector::print(llvm::raw_ostream &OS) const { |
| 478 | OS << getAsString(); |
| 479 | } |
| 480 | |
| 481 | LLVM_DUMP_METHOD void Selector::dump() const { print(llvm::errs()); } |
| 482 | |
| 483 | |
| 484 | |
| 485 | |
| 486 | static bool startsWithWord(StringRef name, StringRef word) { |
| 487 | if (name.size() < word.size()) return false; |
| 488 | return ((name.size() == word.size() || !isLowercase(name[word.size()])) && |
| 489 | name.startswith(word)); |
| 490 | } |
| 491 | |
| 492 | ObjCMethodFamily Selector::getMethodFamilyImpl(Selector sel) { |
| 493 | IdentifierInfo *first = sel.getIdentifierInfoForSlot(0); |
| 494 | if (!first) return OMF_None; |
| 495 | |
| 496 | StringRef name = first->getName(); |
| 497 | if (sel.isUnarySelector()) { |
| 498 | if (name == "autorelease") return OMF_autorelease; |
| 499 | if (name == "dealloc") return OMF_dealloc; |
| 500 | if (name == "finalize") return OMF_finalize; |
| 501 | if (name == "release") return OMF_release; |
| 502 | if (name == "retain") return OMF_retain; |
| 503 | if (name == "retainCount") return OMF_retainCount; |
| 504 | if (name == "self") return OMF_self; |
| 505 | if (name == "initialize") return OMF_initialize; |
| 506 | } |
| 507 | |
| 508 | if (name == "performSelector" || name == "performSelectorInBackground" || |
| 509 | name == "performSelectorOnMainThread") |
| 510 | return OMF_performSelector; |
| 511 | |
| 512 | |
| 513 | while (!name.empty() && name.front() == '_') |
| 514 | name = name.substr(1); |
| 515 | |
| 516 | if (name.empty()) return OMF_None; |
| 517 | switch (name.front()) { |
| 518 | case 'a': |
| 519 | if (startsWithWord(name, "alloc")) return OMF_alloc; |
| 520 | break; |
| 521 | case 'c': |
| 522 | if (startsWithWord(name, "copy")) return OMF_copy; |
| 523 | break; |
| 524 | case 'i': |
| 525 | if (startsWithWord(name, "init")) return OMF_init; |
| 526 | break; |
| 527 | case 'm': |
| 528 | if (startsWithWord(name, "mutableCopy")) return OMF_mutableCopy; |
| 529 | break; |
| 530 | case 'n': |
| 531 | if (startsWithWord(name, "new")) return OMF_new; |
| 532 | break; |
| 533 | default: |
| 534 | break; |
| 535 | } |
| 536 | |
| 537 | return OMF_None; |
| 538 | } |
| 539 | |
| 540 | ObjCInstanceTypeFamily Selector::getInstTypeMethodFamily(Selector sel) { |
| 541 | IdentifierInfo *first = sel.getIdentifierInfoForSlot(0); |
| 542 | if (!first) return OIT_None; |
| 543 | |
| 544 | StringRef name = first->getName(); |
| 545 | |
| 546 | if (name.empty()) return OIT_None; |
| 547 | switch (name.front()) { |
| 548 | case 'a': |
| 549 | if (startsWithWord(name, "array")) return OIT_Array; |
| 550 | break; |
| 551 | case 'd': |
| 552 | if (startsWithWord(name, "default")) return OIT_ReturnsSelf; |
| 553 | if (startsWithWord(name, "dictionary")) return OIT_Dictionary; |
| 554 | break; |
| 555 | case 's': |
| 556 | if (startsWithWord(name, "shared")) return OIT_ReturnsSelf; |
| 557 | if (startsWithWord(name, "standard")) return OIT_Singleton; |
| 558 | break; |
| 559 | case 'i': |
| 560 | if (startsWithWord(name, "init")) return OIT_Init; |
| 561 | break; |
| 562 | default: |
| 563 | break; |
| 564 | } |
| 565 | return OIT_None; |
| 566 | } |
| 567 | |
| 568 | ObjCStringFormatFamily Selector::getStringFormatFamilyImpl(Selector sel) { |
| 569 | IdentifierInfo *first = sel.getIdentifierInfoForSlot(0); |
| 570 | if (!first) return SFF_None; |
| 571 | |
| 572 | StringRef name = first->getName(); |
| 573 | |
| 574 | switch (name.front()) { |
| 575 | case 'a': |
| 576 | if (name == "appendFormat") return SFF_NSString; |
| 577 | break; |
| 578 | |
| 579 | case 'i': |
| 580 | if (name == "initWithFormat") return SFF_NSString; |
| 581 | break; |
| 582 | |
| 583 | case 'l': |
| 584 | if (name == "localizedStringWithFormat") return SFF_NSString; |
| 585 | break; |
| 586 | |
| 587 | case 's': |
| 588 | if (name == "stringByAppendingFormat" || |
| 589 | name == "stringWithFormat") return SFF_NSString; |
| 590 | break; |
| 591 | } |
| 592 | return SFF_None; |
| 593 | } |
| 594 | |
| 595 | namespace { |
| 596 | |
| 597 | struct SelectorTableImpl { |
| 598 | llvm::FoldingSet<MultiKeywordSelector> Table; |
| 599 | llvm::BumpPtrAllocator Allocator; |
| 600 | }; |
| 601 | |
| 602 | } |
| 603 | |
| 604 | static SelectorTableImpl &getSelectorTableImpl(void *P) { |
| 605 | return *static_cast<SelectorTableImpl*>(P); |
| 606 | } |
| 607 | |
| 608 | SmallString<64> |
| 609 | SelectorTable::constructSetterName(StringRef Name) { |
| 610 | SmallString<64> SetterName("set"); |
| 611 | SetterName += Name; |
| 612 | SetterName[3] = toUppercase(SetterName[3]); |
| 613 | return SetterName; |
| 614 | } |
| 615 | |
| 616 | Selector |
| 617 | SelectorTable::constructSetterSelector(IdentifierTable &Idents, |
| 618 | SelectorTable &SelTable, |
| 619 | const IdentifierInfo *Name) { |
| 620 | IdentifierInfo *SetterName = |
| 621 | &Idents.get(constructSetterName(Name->getName())); |
| 622 | return SelTable.getUnarySelector(SetterName); |
| 623 | } |
| 624 | |
| 625 | std::string SelectorTable::getPropertyNameFromSetterSelector(Selector Sel) { |
| 626 | StringRef Name = Sel.getNameForSlot(0); |
| 627 | (0) . __assert_fail ("Name.startswith(\"set\") && \"invalid setter name\"", "/home/seafit/code_projects/clang_source/clang/lib/Basic/IdentifierTable.cpp", 627, __PRETTY_FUNCTION__))" file_link="../../../include/assert.h.html#88" macro="true">assert(Name.startswith("set") && "invalid setter name"); |
| 628 | return (Twine(toLowercase(Name[3])) + Name.drop_front(4)).str(); |
| 629 | } |
| 630 | |
| 631 | size_t SelectorTable::getTotalMemory() const { |
| 632 | SelectorTableImpl &SelTabImpl = getSelectorTableImpl(Impl); |
| 633 | return SelTabImpl.Allocator.getTotalMemory(); |
| 634 | } |
| 635 | |
| 636 | Selector SelectorTable::getSelector(unsigned nKeys, IdentifierInfo **IIV) { |
| 637 | if (nKeys < 2) |
| 638 | return Selector(IIV[0], nKeys); |
| 639 | |
| 640 | SelectorTableImpl &SelTabImpl = getSelectorTableImpl(Impl); |
| 641 | |
| 642 | |
| 643 | llvm::FoldingSetNodeID ID; |
| 644 | MultiKeywordSelector::Profile(ID, IIV, nKeys); |
| 645 | |
| 646 | void *InsertPos = nullptr; |
| 647 | if (MultiKeywordSelector *SI = |
| 648 | SelTabImpl.Table.FindNodeOrInsertPos(ID, InsertPos)) |
| 649 | return Selector(SI); |
| 650 | |
| 651 | |
| 652 | |
| 653 | unsigned Size = sizeof(MultiKeywordSelector) + nKeys*sizeof(IdentifierInfo *); |
| 654 | MultiKeywordSelector *SI = |
| 655 | (MultiKeywordSelector *)SelTabImpl.Allocator.Allocate( |
| 656 | Size, alignof(MultiKeywordSelector)); |
| 657 | new (SI) MultiKeywordSelector(nKeys, IIV); |
| 658 | SelTabImpl.Table.InsertNode(SI, InsertPos); |
| 659 | return Selector(SI); |
| 660 | } |
| 661 | |
| 662 | SelectorTable::SelectorTable() { |
| 663 | Impl = new SelectorTableImpl(); |
| 664 | } |
| 665 | |
| 666 | SelectorTable::~SelectorTable() { |
| 667 | delete &getSelectorTableImpl(Impl); |
| 668 | } |
| 669 | |
| 670 | const char *clang::getOperatorSpelling(OverloadedOperatorKind Operator) { |
| 671 | switch (Operator) { |
| 672 | case OO_None: |
| 673 | case NUM_OVERLOADED_OPERATORS: |
| 674 | return nullptr; |
| 675 | |
| 676 | #define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ |
| 677 | case OO_##Name: return Spelling; |
| 678 | #include "clang/Basic/OperatorKinds.def" |
| 679 | } |
| 680 | |
| 681 | llvm_unreachable("Invalid OverloadedOperatorKind!"); |
| 682 | } |
| 683 | |
| 684 | StringRef clang::getNullabilitySpelling(NullabilityKind kind, |
| 685 | bool isContextSensitive) { |
| 686 | switch (kind) { |
| 687 | case NullabilityKind::NonNull: |
| 688 | return isContextSensitive ? "nonnull" : "_Nonnull"; |
| 689 | |
| 690 | case NullabilityKind::Nullable: |
| 691 | return isContextSensitive ? "nullable" : "_Nullable"; |
| 692 | |
| 693 | case NullabilityKind::Unspecified: |
| 694 | return isContextSensitive ? "null_unspecified" : "_Null_unspecified"; |
| 695 | } |
| 696 | llvm_unreachable("Unknown nullability kind."); |
| 697 | } |
| 698 | |