1 //===- CXCursor.cpp - Routines for manipulating CXCursors -----------------===// 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 // This file defines routines for manipulating CXCursors. It should be the 11 // only file that has internal knowledge of the encoding of the data in 12 // CXCursor. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #include "CXCursor.h" 17 #include "clang/Frontend/ASTUnit.h" 18 #include "clang/AST/Decl.h" 19 #include "clang/AST/DeclCXX.h" 20 #include "clang/AST/DeclObjC.h" 21 #include "clang/AST/Expr.h" 22 #include "clang/AST/ExprCXX.h" 23 #include "llvm/Support/ErrorHandling.h" 24 25 using namespace clang; 26 using namespace cxcursor; 27 28 CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K) { 29 assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid); 30 CXCursor C = { K, { 0, 0, 0 } }; 31 return C; 32 } 33 34 static CXCursorKind GetCursorKind(const Attr *A) { 35 assert(A && "Invalid arguments!"); 36 switch (A->getKind()) { 37 default: break; 38 case attr::IBAction: return CXCursor_IBActionAttr; 39 case attr::IBOutlet: return CXCursor_IBOutletAttr; 40 case attr::IBOutletCollection: return CXCursor_IBOutletCollectionAttr; 41 } 42 43 return CXCursor_UnexposedAttr; 44 } 45 46 CXCursor cxcursor::MakeCXCursor(const Attr *A, Decl *Parent, ASTUnit *TU) { 47 assert(A && Parent && TU && "Invalid arguments!"); 48 CXCursor C = { GetCursorKind(A), { Parent, (void*)A, TU } }; 49 return C; 50 } 51 52 CXCursor cxcursor::MakeCXCursor(Decl *D, ASTUnit *TU) { 53 assert(D && TU && "Invalid arguments!"); 54 CXCursor C = { getCursorKindForDecl(D), { D, 0, TU } }; 55 return C; 56 } 57 58 CXCursor cxcursor::MakeCXCursor(Stmt *S, Decl *Parent, ASTUnit *TU) { 59 assert(S && TU && "Invalid arguments!"); 60 CXCursorKind K = CXCursor_NotImplemented; 61 62 switch (S->getStmtClass()) { 63 case Stmt::NoStmtClass: 64 break; 65 66 case Stmt::NullStmtClass: 67 case Stmt::CompoundStmtClass: 68 case Stmt::CaseStmtClass: 69 case Stmt::DefaultStmtClass: 70 case Stmt::IfStmtClass: 71 case Stmt::SwitchStmtClass: 72 case Stmt::WhileStmtClass: 73 case Stmt::DoStmtClass: 74 case Stmt::ForStmtClass: 75 case Stmt::GotoStmtClass: 76 case Stmt::IndirectGotoStmtClass: 77 case Stmt::ContinueStmtClass: 78 case Stmt::BreakStmtClass: 79 case Stmt::ReturnStmtClass: 80 case Stmt::DeclStmtClass: 81 case Stmt::SwitchCaseClass: 82 case Stmt::AsmStmtClass: 83 case Stmt::ObjCAtTryStmtClass: 84 case Stmt::ObjCAtCatchStmtClass: 85 case Stmt::ObjCAtFinallyStmtClass: 86 case Stmt::ObjCAtThrowStmtClass: 87 case Stmt::ObjCAtSynchronizedStmtClass: 88 case Stmt::ObjCForCollectionStmtClass: 89 case Stmt::CXXCatchStmtClass: 90 case Stmt::CXXTryStmtClass: 91 K = CXCursor_UnexposedStmt; 92 break; 93 94 case Stmt::LabelStmtClass: 95 K = CXCursor_LabelStmt; 96 break; 97 98 case Stmt::PredefinedExprClass: 99 case Stmt::IntegerLiteralClass: 100 case Stmt::FloatingLiteralClass: 101 case Stmt::ImaginaryLiteralClass: 102 case Stmt::StringLiteralClass: 103 case Stmt::CharacterLiteralClass: 104 case Stmt::ParenExprClass: 105 case Stmt::UnaryOperatorClass: 106 case Stmt::OffsetOfExprClass: 107 case Stmt::SizeOfAlignOfExprClass: 108 case Stmt::ArraySubscriptExprClass: 109 case Stmt::BinaryOperatorClass: 110 case Stmt::CompoundAssignOperatorClass: 111 case Stmt::ConditionalOperatorClass: 112 case Stmt::ImplicitCastExprClass: 113 case Stmt::CStyleCastExprClass: 114 case Stmt::CompoundLiteralExprClass: 115 case Stmt::ExtVectorElementExprClass: 116 case Stmt::InitListExprClass: 117 case Stmt::DesignatedInitExprClass: 118 case Stmt::ImplicitValueInitExprClass: 119 case Stmt::ParenListExprClass: 120 case Stmt::VAArgExprClass: 121 case Stmt::AddrLabelExprClass: 122 case Stmt::StmtExprClass: 123 case Stmt::TypesCompatibleExprClass: 124 case Stmt::ChooseExprClass: 125 case Stmt::GNUNullExprClass: 126 case Stmt::CXXStaticCastExprClass: 127 case Stmt::CXXDynamicCastExprClass: 128 case Stmt::CXXReinterpretCastExprClass: 129 case Stmt::CXXConstCastExprClass: 130 case Stmt::CXXFunctionalCastExprClass: 131 case Stmt::CXXTypeidExprClass: 132 case Stmt::CXXUuidofExprClass: 133 case Stmt::CXXBoolLiteralExprClass: 134 case Stmt::CXXNullPtrLiteralExprClass: 135 case Stmt::CXXThisExprClass: 136 case Stmt::CXXThrowExprClass: 137 case Stmt::CXXDefaultArgExprClass: 138 case Stmt::CXXScalarValueInitExprClass: 139 case Stmt::CXXNewExprClass: 140 case Stmt::CXXDeleteExprClass: 141 case Stmt::CXXPseudoDestructorExprClass: 142 case Stmt::UnresolvedLookupExprClass: 143 case Stmt::UnaryTypeTraitExprClass: 144 case Stmt::DependentScopeDeclRefExprClass: 145 case Stmt::CXXBindTemporaryExprClass: 146 case Stmt::CXXExprWithTemporariesClass: 147 case Stmt::CXXUnresolvedConstructExprClass: 148 case Stmt::CXXDependentScopeMemberExprClass: 149 case Stmt::UnresolvedMemberExprClass: 150 case Stmt::CXXNoexceptExprClass: 151 case Stmt::ObjCStringLiteralClass: 152 case Stmt::ObjCEncodeExprClass: 153 case Stmt::ObjCSelectorExprClass: 154 case Stmt::ObjCProtocolExprClass: 155 case Stmt::ObjCImplicitSetterGetterRefExprClass: 156 case Stmt::ObjCIsaExprClass: 157 case Stmt::ShuffleVectorExprClass: 158 case Stmt::BlockExprClass: 159 K = CXCursor_UnexposedExpr; 160 break; 161 162 case Stmt::DeclRefExprClass: 163 case Stmt::BlockDeclRefExprClass: 164 // FIXME: UnresolvedLookupExpr? 165 // FIXME: DependentScopeDeclRefExpr? 166 K = CXCursor_DeclRefExpr; 167 break; 168 169 case Stmt::MemberExprClass: 170 case Stmt::ObjCIvarRefExprClass: 171 case Stmt::ObjCPropertyRefExprClass: 172 // FIXME: UnresolvedMemberExpr? 173 // FIXME: CXXDependentScopeMemberExpr? 174 K = CXCursor_MemberRefExpr; 175 break; 176 177 case Stmt::CallExprClass: 178 case Stmt::CXXOperatorCallExprClass: 179 case Stmt::CXXMemberCallExprClass: 180 case Stmt::CXXConstructExprClass: 181 case Stmt::CXXTemporaryObjectExprClass: 182 // FIXME: CXXUnresolvedConstructExpr 183 // FIXME: ObjCImplicitSetterGetterRefExpr? 184 K = CXCursor_CallExpr; 185 break; 186 187 case Stmt::ObjCMessageExprClass: 188 K = CXCursor_ObjCMessageExpr; 189 break; 190 } 191 192 CXCursor C = { K, { Parent, S, TU } }; 193 return C; 194 } 195 196 CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super, 197 SourceLocation Loc, 198 ASTUnit *TU) { 199 assert(Super && TU && "Invalid arguments!"); 200 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 201 CXCursor C = { CXCursor_ObjCSuperClassRef, { Super, RawLoc, TU } }; 202 return C; 203 } 204 205 std::pair<ObjCInterfaceDecl *, SourceLocation> 206 cxcursor::getCursorObjCSuperClassRef(CXCursor C) { 207 assert(C.kind == CXCursor_ObjCSuperClassRef); 208 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 209 SourceLocation::getFromRawEncoding( 210 reinterpret_cast<uintptr_t>(C.data[1]))); 211 } 212 213 CXCursor cxcursor::MakeCursorObjCProtocolRef(ObjCProtocolDecl *Super, 214 SourceLocation Loc, 215 ASTUnit *TU) { 216 assert(Super && TU && "Invalid arguments!"); 217 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 218 CXCursor C = { CXCursor_ObjCProtocolRef, { Super, RawLoc, TU } }; 219 return C; 220 } 221 222 std::pair<ObjCProtocolDecl *, SourceLocation> 223 cxcursor::getCursorObjCProtocolRef(CXCursor C) { 224 assert(C.kind == CXCursor_ObjCProtocolRef); 225 return std::make_pair(static_cast<ObjCProtocolDecl *>(C.data[0]), 226 SourceLocation::getFromRawEncoding( 227 reinterpret_cast<uintptr_t>(C.data[1]))); 228 } 229 230 CXCursor cxcursor::MakeCursorObjCClassRef(ObjCInterfaceDecl *Class, 231 SourceLocation Loc, 232 ASTUnit *TU) { 233 // 'Class' can be null for invalid code. 234 if (!Class) 235 return MakeCXCursorInvalid(CXCursor_InvalidCode); 236 assert(TU && "Invalid arguments!"); 237 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 238 CXCursor C = { CXCursor_ObjCClassRef, { Class, RawLoc, TU } }; 239 return C; 240 } 241 242 std::pair<ObjCInterfaceDecl *, SourceLocation> 243 cxcursor::getCursorObjCClassRef(CXCursor C) { 244 assert(C.kind == CXCursor_ObjCClassRef); 245 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 246 SourceLocation::getFromRawEncoding( 247 reinterpret_cast<uintptr_t>(C.data[1]))); 248 } 249 250 CXCursor cxcursor::MakeCursorTypeRef(TypeDecl *Type, SourceLocation Loc, 251 ASTUnit *TU) { 252 assert(Type && TU && "Invalid arguments!"); 253 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 254 CXCursor C = { CXCursor_TypeRef, { Type, RawLoc, TU } }; 255 return C; 256 } 257 258 std::pair<TypeDecl *, SourceLocation> 259 cxcursor::getCursorTypeRef(CXCursor C) { 260 assert(C.kind == CXCursor_TypeRef); 261 return std::make_pair(static_cast<TypeDecl *>(C.data[0]), 262 SourceLocation::getFromRawEncoding( 263 reinterpret_cast<uintptr_t>(C.data[1]))); 264 } 265 266 CXCursor cxcursor::MakeCursorTemplateRef(TemplateDecl *Template, 267 SourceLocation Loc, ASTUnit *TU) { 268 assert(Template && TU && "Invalid arguments!"); 269 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 270 CXCursor C = { CXCursor_TemplateRef, { Template, RawLoc, TU } }; 271 return C; 272 } 273 274 std::pair<TemplateDecl *, SourceLocation> 275 cxcursor::getCursorTemplateRef(CXCursor C) { 276 assert(C.kind == CXCursor_TemplateRef); 277 return std::make_pair(static_cast<TemplateDecl *>(C.data[0]), 278 SourceLocation::getFromRawEncoding( 279 reinterpret_cast<uintptr_t>(C.data[1]))); 280 } 281 282 CXCursor cxcursor::MakeCursorNamespaceRef(NamedDecl *NS, SourceLocation Loc, 283 ASTUnit *TU) { 284 285 assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU && 286 "Invalid arguments!"); 287 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 288 CXCursor C = { CXCursor_NamespaceRef, { NS, RawLoc, TU } }; 289 return C; 290 } 291 292 std::pair<NamedDecl *, SourceLocation> 293 cxcursor::getCursorNamespaceRef(CXCursor C) { 294 assert(C.kind == CXCursor_NamespaceRef); 295 return std::make_pair(static_cast<NamedDecl *>(C.data[0]), 296 SourceLocation::getFromRawEncoding( 297 reinterpret_cast<uintptr_t>(C.data[1]))); 298 } 299 300 CXCursor cxcursor::MakeCursorMemberRef(FieldDecl *Field, SourceLocation Loc, 301 ASTUnit *TU) { 302 303 assert(Field && TU && "Invalid arguments!"); 304 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 305 CXCursor C = { CXCursor_MemberRef, { Field, RawLoc, TU } }; 306 return C; 307 } 308 309 std::pair<FieldDecl *, SourceLocation> 310 cxcursor::getCursorMemberRef(CXCursor C) { 311 assert(C.kind == CXCursor_MemberRef); 312 return std::make_pair(static_cast<FieldDecl *>(C.data[0]), 313 SourceLocation::getFromRawEncoding( 314 reinterpret_cast<uintptr_t>(C.data[1]))); 315 } 316 317 CXCursor cxcursor::MakeCursorCXXBaseSpecifier(CXXBaseSpecifier *B, ASTUnit *TU){ 318 CXCursor C = { CXCursor_CXXBaseSpecifier, { B, 0, TU } }; 319 return C; 320 } 321 322 CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) { 323 assert(C.kind == CXCursor_CXXBaseSpecifier); 324 return static_cast<CXXBaseSpecifier*>(C.data[0]); 325 } 326 327 CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range, 328 ASTUnit *TU) { 329 CXCursor C = { CXCursor_PreprocessingDirective, 330 { reinterpret_cast<void *>(Range.getBegin().getRawEncoding()), 331 reinterpret_cast<void *>(Range.getEnd().getRawEncoding()), 332 TU } 333 }; 334 return C; 335 } 336 337 SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) { 338 assert(C.kind == CXCursor_PreprocessingDirective); 339 return SourceRange(SourceLocation::getFromRawEncoding( 340 reinterpret_cast<uintptr_t> (C.data[0])), 341 SourceLocation::getFromRawEncoding( 342 reinterpret_cast<uintptr_t> (C.data[1]))); 343 } 344 345 CXCursor cxcursor::MakeMacroDefinitionCursor(MacroDefinition *MI, ASTUnit *TU) { 346 CXCursor C = { CXCursor_MacroDefinition, { MI, 0, TU } }; 347 return C; 348 } 349 350 MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) { 351 assert(C.kind == CXCursor_MacroDefinition); 352 return static_cast<MacroDefinition *>(C.data[0]); 353 } 354 355 CXCursor cxcursor::MakeMacroInstantiationCursor(MacroInstantiation *MI, 356 ASTUnit *TU) { 357 CXCursor C = { CXCursor_MacroInstantiation, { MI, 0, TU } }; 358 return C; 359 } 360 361 MacroInstantiation *cxcursor::getCursorMacroInstantiation(CXCursor C) { 362 assert(C.kind == CXCursor_MacroInstantiation); 363 return static_cast<MacroInstantiation *>(C.data[0]); 364 } 365 366 CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc, 367 ASTUnit *TU) { 368 369 assert(Label && TU && "Invalid arguments!"); 370 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 371 CXCursor C = { CXCursor_LabelRef, { Label, RawLoc, TU } }; 372 return C; 373 } 374 375 std::pair<LabelStmt*, SourceLocation> 376 cxcursor::getCursorLabelRef(CXCursor C) { 377 assert(C.kind == CXCursor_LabelRef); 378 return std::make_pair(static_cast<LabelStmt *>(C.data[0]), 379 SourceLocation::getFromRawEncoding( 380 reinterpret_cast<uintptr_t>(C.data[1]))); 381 } 382 383 CXCursor cxcursor::MakeCursorOverloadedDeclRef(OverloadExpr *E, 384 ASTUnit *TU) { 385 assert(E && TU && "Invalid arguments!"); 386 OverloadedDeclRefStorage Storage(E); 387 void *RawLoc = reinterpret_cast<void *>(E->getNameLoc().getRawEncoding()); 388 CXCursor C = { 389 CXCursor_OverloadedDeclRef, 390 { Storage.getOpaqueValue(), RawLoc, TU } 391 }; 392 return C; 393 } 394 395 CXCursor cxcursor::MakeCursorOverloadedDeclRef(Decl *D, 396 SourceLocation Loc, 397 ASTUnit *TU) { 398 assert(D && TU && "Invalid arguments!"); 399 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 400 OverloadedDeclRefStorage Storage(D); 401 CXCursor C = { 402 CXCursor_OverloadedDeclRef, 403 { Storage.getOpaqueValue(), RawLoc, TU } 404 }; 405 return C; 406 } 407 408 CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name, 409 SourceLocation Loc, 410 ASTUnit *TU) { 411 assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!"); 412 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 413 OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate()); 414 CXCursor C = { 415 CXCursor_OverloadedDeclRef, 416 { Storage.getOpaqueValue(), RawLoc, TU } 417 }; 418 return C; 419 } 420 421 std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation> 422 cxcursor::getCursorOverloadedDeclRef(CXCursor C) { 423 assert(C.kind == CXCursor_OverloadedDeclRef); 424 return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(C.data[0]), 425 SourceLocation::getFromRawEncoding( 426 reinterpret_cast<uintptr_t>(C.data[1]))); 427 } 428 429 Decl *cxcursor::getCursorDecl(CXCursor Cursor) { 430 return (Decl *)Cursor.data[0]; 431 } 432 433 Expr *cxcursor::getCursorExpr(CXCursor Cursor) { 434 return dyn_cast_or_null<Expr>(getCursorStmt(Cursor)); 435 } 436 437 Stmt *cxcursor::getCursorStmt(CXCursor Cursor) { 438 if (Cursor.kind == CXCursor_ObjCSuperClassRef || 439 Cursor.kind == CXCursor_ObjCProtocolRef || 440 Cursor.kind == CXCursor_ObjCClassRef) 441 return 0; 442 443 return (Stmt *)Cursor.data[1]; 444 } 445 446 Attr *cxcursor::getCursorAttr(CXCursor Cursor) { 447 return (Attr *)Cursor.data[1]; 448 } 449 450 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) { 451 return getCursorASTUnit(Cursor)->getASTContext(); 452 } 453 454 ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) { 455 return static_cast<ASTUnit *>(Cursor.data[2]); 456 } 457 458 bool cxcursor::operator==(CXCursor X, CXCursor Y) { 459 return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] && 460 X.data[2] == Y.data[2]; 461 } 462