| 1 | //===- ASTMatchers.h - Structural query framework ---------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This file implements matchers to be used together with the MatchFinder to |
| 10 | // match AST nodes. |
| 11 | // |
| 12 | // Matchers are created by generator functions, which can be combined in |
| 13 | // a functional in-language DSL to express queries over the C++ AST. |
| 14 | // |
| 15 | // For example, to match a class with a certain name, one would call: |
| 16 | // cxxRecordDecl(hasName("MyClass")) |
| 17 | // which returns a matcher that can be used to find all AST nodes that declare |
| 18 | // a class named 'MyClass'. |
| 19 | // |
| 20 | // For more complicated match expressions we're often interested in accessing |
| 21 | // multiple parts of the matched AST nodes once a match is found. In that case, |
| 22 | // use the id(...) matcher around the match expressions that match the nodes |
| 23 | // you want to access. |
| 24 | // |
| 25 | // For example, when we're interested in child classes of a certain class, we |
| 26 | // would write: |
| 27 | // cxxRecordDecl(hasName("MyClass"), has(id("child", recordDecl()))) |
| 28 | // When the match is found via the MatchFinder, a user provided callback will |
| 29 | // be called with a BoundNodes instance that contains a mapping from the |
| 30 | // strings that we provided for the id(...) calls to the nodes that were |
| 31 | // matched. |
| 32 | // In the given example, each time our matcher finds a match we get a callback |
| 33 | // where "child" is bound to the RecordDecl node of the matching child |
| 34 | // class declaration. |
| 35 | // |
| 36 | // See ASTMatchersInternal.h for a more in-depth explanation of the |
| 37 | // implementation details of the matcher framework. |
| 38 | // |
| 39 | // See ASTMatchFinder.h for how to use the generated matchers to run over |
| 40 | // an AST. |
| 41 | // |
| 42 | //===----------------------------------------------------------------------===// |
| 43 | |
| 44 | #ifndef LLVM_CLANG_ASTMATCHERS_ASTMATCHERS_H |
| 45 | #define LLVM_CLANG_ASTMATCHERS_ASTMATCHERS_H |
| 46 | |
| 47 | #include "clang/AST/ASTContext.h" |
| 48 | #include "clang/AST/ASTTypeTraits.h" |
| 49 | #include "clang/AST/Attr.h" |
| 50 | #include "clang/AST/Decl.h" |
| 51 | #include "clang/AST/DeclCXX.h" |
| 52 | #include "clang/AST/DeclFriend.h" |
| 53 | #include "clang/AST/DeclObjC.h" |
| 54 | #include "clang/AST/DeclTemplate.h" |
| 55 | #include "clang/AST/Expr.h" |
| 56 | #include "clang/AST/ExprCXX.h" |
| 57 | #include "clang/AST/ExprObjC.h" |
| 58 | #include "clang/AST/NestedNameSpecifier.h" |
| 59 | #include "clang/AST/OpenMPClause.h" |
| 60 | #include "clang/AST/OperationKinds.h" |
| 61 | #include "clang/AST/Stmt.h" |
| 62 | #include "clang/AST/StmtCXX.h" |
| 63 | #include "clang/AST/StmtObjC.h" |
| 64 | #include "clang/AST/StmtOpenMP.h" |
| 65 | #include "clang/AST/TemplateBase.h" |
| 66 | #include "clang/AST/TemplateName.h" |
| 67 | #include "clang/AST/Type.h" |
| 68 | #include "clang/AST/TypeLoc.h" |
| 69 | #include "clang/ASTMatchers/ASTMatchersInternal.h" |
| 70 | #include "clang/ASTMatchers/ASTMatchersMacros.h" |
| 71 | #include "clang/Basic/AttrKinds.h" |
| 72 | #include "clang/Basic/ExceptionSpecificationType.h" |
| 73 | #include "clang/Basic/IdentifierTable.h" |
| 74 | #include "clang/Basic/LLVM.h" |
| 75 | #include "clang/Basic/SourceManager.h" |
| 76 | #include "clang/Basic/Specifiers.h" |
| 77 | #include "clang/Basic/TypeTraits.h" |
| 78 | #include "llvm/ADT/ArrayRef.h" |
| 79 | #include "llvm/ADT/SmallVector.h" |
| 80 | #include "llvm/ADT/StringRef.h" |
| 81 | #include "llvm/Support/Casting.h" |
| 82 | #include "llvm/Support/Compiler.h" |
| 83 | #include "llvm/Support/ErrorHandling.h" |
| 84 | #include "llvm/Support/Regex.h" |
| 85 | #include <cassert> |
| 86 | #include <cstddef> |
| 87 | #include <iterator> |
| 88 | #include <limits> |
| 89 | #include <string> |
| 90 | #include <utility> |
| 91 | #include <vector> |
| 92 | |
| 93 | namespace clang { |
| 94 | namespace ast_matchers { |
| 95 | |
| 96 | /// Maps string IDs to AST nodes matched by parts of a matcher. |
| 97 | /// |
| 98 | /// The bound nodes are generated by calling \c bind("id") on the node matchers |
| 99 | /// of the nodes we want to access later. |
| 100 | /// |
| 101 | /// The instances of BoundNodes are created by \c MatchFinder when the user's |
| 102 | /// callbacks are executed every time a match is found. |
| 103 | class BoundNodes { |
| 104 | public: |
| 105 | /// Returns the AST node bound to \c ID. |
| 106 | /// |
| 107 | /// Returns NULL if there was no node bound to \c ID or if there is a node but |
| 108 | /// it cannot be converted to the specified type. |
| 109 | template <typename T> |
| 110 | const T *getNodeAs(StringRef ID) const { |
| 111 | return MyBoundNodes.getNodeAs<T>(ID); |
| 112 | } |
| 113 | |
| 114 | /// Type of mapping from binding identifiers to bound nodes. This type |
| 115 | /// is an associative container with a key type of \c std::string and a value |
| 116 | /// type of \c clang::ast_type_traits::DynTypedNode |
| 117 | using IDToNodeMap = internal::BoundNodesMap::IDToNodeMap; |
| 118 | |
| 119 | /// Retrieve mapping from binding identifiers to bound nodes. |
| 120 | const IDToNodeMap &getMap() const { |
| 121 | return MyBoundNodes.getMap(); |
| 122 | } |
| 123 | |
| 124 | private: |
| 125 | friend class internal::BoundNodesTreeBuilder; |
| 126 | |
| 127 | /// Create BoundNodes from a pre-filled map of bindings. |
| 128 | BoundNodes(internal::BoundNodesMap &MyBoundNodes) |
| 129 | : MyBoundNodes(MyBoundNodes) {} |
| 130 | |
| 131 | internal::BoundNodesMap MyBoundNodes; |
| 132 | }; |
| 133 | |
| 134 | /// If the provided matcher matches a node, binds the node to \c ID. |
| 135 | /// |
| 136 | /// FIXME: Do we want to support this now that we have bind()? |
| 137 | template <typename T> |
| 138 | internal::Matcher<T> id(StringRef ID, |
| 139 | const internal::BindableMatcher<T> &InnerMatcher) { |
| 140 | return InnerMatcher.bind(ID); |
| 141 | } |
| 142 | |
| 143 | /// Types of matchers for the top-level classes in the AST class |
| 144 | /// hierarchy. |
| 145 | /// @{ |
| 146 | using DeclarationMatcher = internal::Matcher<Decl>; |
| 147 | using StatementMatcher = internal::Matcher<Stmt>; |
| 148 | using TypeMatcher = internal::Matcher<QualType>; |
| 149 | using TypeLocMatcher = internal::Matcher<TypeLoc>; |
| 150 | using NestedNameSpecifierMatcher = internal::Matcher<NestedNameSpecifier>; |
| 151 | using NestedNameSpecifierLocMatcher = internal::Matcher<NestedNameSpecifierLoc>; |
| 152 | using CXXCtorInitializerMatcher = internal::Matcher<CXXCtorInitializer>; |
| 153 | /// @} |
| 154 | |
| 155 | /// Matches any node. |
| 156 | /// |
| 157 | /// Useful when another matcher requires a child matcher, but there's no |
| 158 | /// additional constraint. This will often be used with an explicit conversion |
| 159 | /// to an \c internal::Matcher<> type such as \c TypeMatcher. |
| 160 | /// |
| 161 | /// Example: \c DeclarationMatcher(anything()) matches all declarations, e.g., |
| 162 | /// \code |
| 163 | /// "int* p" and "void f()" in |
| 164 | /// int* p; |
| 165 | /// void f(); |
| 166 | /// \endcode |
| 167 | /// |
| 168 | /// Usable as: Any Matcher |
| 169 | inline internal::TrueMatcher anything() { return internal::TrueMatcher(); } |
| 170 | |
| 171 | /// Matches the top declaration context. |
| 172 | /// |
| 173 | /// Given |
| 174 | /// \code |
| 175 | /// int X; |
| 176 | /// namespace NS { |
| 177 | /// int Y; |
| 178 | /// } // namespace NS |
| 179 | /// \endcode |
| 180 | /// decl(hasDeclContext(translationUnitDecl())) |
| 181 | /// matches "int X", but not "int Y". |
| 182 | extern const internal::VariadicDynCastAllOfMatcher<Decl, TranslationUnitDecl> |
| 183 | translationUnitDecl; |
| 184 | |
| 185 | /// Matches typedef declarations. |
| 186 | /// |
| 187 | /// Given |
| 188 | /// \code |
| 189 | /// typedef int X; |
| 190 | /// using Y = int; |
| 191 | /// \endcode |
| 192 | /// typedefDecl() |
| 193 | /// matches "typedef int X", but not "using Y = int" |
| 194 | extern const internal::VariadicDynCastAllOfMatcher<Decl, TypedefDecl> |
| 195 | typedefDecl; |
| 196 | |
| 197 | /// Matches typedef name declarations. |
| 198 | /// |
| 199 | /// Given |
| 200 | /// \code |
| 201 | /// typedef int X; |
| 202 | /// using Y = int; |
| 203 | /// \endcode |
| 204 | /// typedefNameDecl() |
| 205 | /// matches "typedef int X" and "using Y = int" |
| 206 | extern const internal::VariadicDynCastAllOfMatcher<Decl, TypedefNameDecl> |
| 207 | typedefNameDecl; |
| 208 | |
| 209 | /// Matches type alias declarations. |
| 210 | /// |
| 211 | /// Given |
| 212 | /// \code |
| 213 | /// typedef int X; |
| 214 | /// using Y = int; |
| 215 | /// \endcode |
| 216 | /// typeAliasDecl() |
| 217 | /// matches "using Y = int", but not "typedef int X" |
| 218 | extern const internal::VariadicDynCastAllOfMatcher<Decl, TypeAliasDecl> |
| 219 | typeAliasDecl; |
| 220 | |
| 221 | /// Matches type alias template declarations. |
| 222 | /// |
| 223 | /// typeAliasTemplateDecl() matches |
| 224 | /// \code |
| 225 | /// template <typename T> |
| 226 | /// using Y = X<T>; |
| 227 | /// \endcode |
| 228 | extern const internal::VariadicDynCastAllOfMatcher<Decl, TypeAliasTemplateDecl> |
| 229 | typeAliasTemplateDecl; |
| 230 | |
| 231 | /// Matches AST nodes that were expanded within the main-file. |
| 232 | /// |
| 233 | /// Example matches X but not Y |
| 234 | /// (matcher = cxxRecordDecl(isExpansionInMainFile()) |
| 235 | /// \code |
| 236 | /// #include <Y.h> |
| 237 | /// class X {}; |
| 238 | /// \endcode |
| 239 | /// Y.h: |
| 240 | /// \code |
| 241 | /// class Y {}; |
| 242 | /// \endcode |
| 243 | /// |
| 244 | /// Usable as: Matcher<Decl>, Matcher<Stmt>, Matcher<TypeLoc> |
| 245 | AST_POLYMORPHIC_MATCHER(isExpansionInMainFile, |
| 246 | AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt, TypeLoc)) { |
| 247 | auto &SourceManager = Finder->getASTContext().getSourceManager(); |
| 248 | return SourceManager.isInMainFile( |
| 249 | SourceManager.getExpansionLoc(Node.getBeginLoc())); |
| 250 | } |
| 251 | |
| 252 | /// Matches AST nodes that were expanded within system-header-files. |
| 253 | /// |
| 254 | /// Example matches Y but not X |
| 255 | /// (matcher = cxxRecordDecl(isExpansionInSystemHeader()) |
| 256 | /// \code |
| 257 | /// #include <SystemHeader.h> |
| 258 | /// class X {}; |
| 259 | /// \endcode |
| 260 | /// SystemHeader.h: |
| 261 | /// \code |
| 262 | /// class Y {}; |
| 263 | /// \endcode |
| 264 | /// |
| 265 | /// Usable as: Matcher<Decl>, Matcher<Stmt>, Matcher<TypeLoc> |
| 266 | AST_POLYMORPHIC_MATCHER(isExpansionInSystemHeader, |
| 267 | AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt, TypeLoc)) { |
| 268 | auto &SourceManager = Finder->getASTContext().getSourceManager(); |
| 269 | auto ExpansionLoc = SourceManager.getExpansionLoc(Node.getBeginLoc()); |
| 270 | if (ExpansionLoc.isInvalid()) { |
| 271 | return false; |
| 272 | } |
| 273 | return SourceManager.isInSystemHeader(ExpansionLoc); |
| 274 | } |
| 275 | |
| 276 | /// Matches AST nodes that were expanded within files whose name is |
| 277 | /// partially matching a given regex. |
| 278 | /// |
| 279 | /// Example matches Y but not X |
| 280 | /// (matcher = cxxRecordDecl(isExpansionInFileMatching("AST.*")) |
| 281 | /// \code |
| 282 | /// #include "ASTMatcher.h" |
| 283 | /// class X {}; |
| 284 | /// \endcode |
| 285 | /// ASTMatcher.h: |
| 286 | /// \code |
| 287 | /// class Y {}; |
| 288 | /// \endcode |
| 289 | /// |
| 290 | /// Usable as: Matcher<Decl>, Matcher<Stmt>, Matcher<TypeLoc> |
| 291 | AST_POLYMORPHIC_MATCHER_P(isExpansionInFileMatching, |
| 292 | AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt, TypeLoc), |
| 293 | std::string, RegExp) { |
| 294 | auto &SourceManager = Finder->getASTContext().getSourceManager(); |
| 295 | auto ExpansionLoc = SourceManager.getExpansionLoc(Node.getBeginLoc()); |
| 296 | if (ExpansionLoc.isInvalid()) { |
| 297 | return false; |
| 298 | } |
| 299 | auto FileEntry = |
| 300 | SourceManager.getFileEntryForID(SourceManager.getFileID(ExpansionLoc)); |
| 301 | if (!FileEntry) { |
| 302 | return false; |
| 303 | } |
| 304 | |
| 305 | auto Filename = FileEntry->getName(); |
| 306 | llvm::Regex RE(RegExp); |
| 307 | return RE.match(Filename); |
| 308 | } |
| 309 | |
| 310 | /// Matches declarations. |
| 311 | /// |
| 312 | /// Examples matches \c X, \c C, and the friend declaration inside \c C; |
| 313 | /// \code |
| 314 | /// void X(); |
| 315 | /// class C { |
| 316 | /// friend X; |
| 317 | /// }; |
| 318 | /// \endcode |
| 319 | extern const internal::VariadicAllOfMatcher<Decl> decl; |
| 320 | |
| 321 | /// Matches a declaration of a linkage specification. |
| 322 | /// |
| 323 | /// Given |
| 324 | /// \code |
| 325 | /// extern "C" {} |
| 326 | /// \endcode |
| 327 | /// linkageSpecDecl() |
| 328 | /// matches "extern "C" {}" |
| 329 | extern const internal::VariadicDynCastAllOfMatcher<Decl, LinkageSpecDecl> |
| 330 | linkageSpecDecl; |
| 331 | |
| 332 | /// Matches a declaration of anything that could have a name. |
| 333 | /// |
| 334 | /// Example matches \c X, \c S, the anonymous union type, \c i, and \c U; |
| 335 | /// \code |
| 336 | /// typedef int X; |
| 337 | /// struct S { |
| 338 | /// union { |
| 339 | /// int i; |
| 340 | /// } U; |
| 341 | /// }; |
| 342 | /// \endcode |
| 343 | extern const internal::VariadicDynCastAllOfMatcher<Decl, NamedDecl> namedDecl; |
| 344 | |
| 345 | /// Matches a declaration of label. |
| 346 | /// |
| 347 | /// Given |
| 348 | /// \code |
| 349 | /// goto FOO; |
| 350 | /// FOO: bar(); |
| 351 | /// \endcode |
| 352 | /// labelDecl() |
| 353 | /// matches 'FOO:' |
| 354 | extern const internal::VariadicDynCastAllOfMatcher<Decl, LabelDecl> labelDecl; |
| 355 | |
| 356 | /// Matches a declaration of a namespace. |
| 357 | /// |
| 358 | /// Given |
| 359 | /// \code |
| 360 | /// namespace {} |
| 361 | /// namespace test {} |
| 362 | /// \endcode |
| 363 | /// namespaceDecl() |
| 364 | /// matches "namespace {}" and "namespace test {}" |
| 365 | extern const internal::VariadicDynCastAllOfMatcher<Decl, NamespaceDecl> |
| 366 | namespaceDecl; |
| 367 | |
| 368 | /// Matches a declaration of a namespace alias. |
| 369 | /// |
| 370 | /// Given |
| 371 | /// \code |
| 372 | /// namespace test {} |
| 373 | /// namespace alias = ::test; |
| 374 | /// \endcode |
| 375 | /// namespaceAliasDecl() |
| 376 | /// matches "namespace alias" but not "namespace test" |
| 377 | extern const internal::VariadicDynCastAllOfMatcher<Decl, NamespaceAliasDecl> |
| 378 | namespaceAliasDecl; |
| 379 | |
| 380 | /// Matches class, struct, and union declarations. |
| 381 | /// |
| 382 | /// Example matches \c X, \c Z, \c U, and \c S |
| 383 | /// \code |
| 384 | /// class X; |
| 385 | /// template<class T> class Z {}; |
| 386 | /// struct S {}; |
| 387 | /// union U {}; |
| 388 | /// \endcode |
| 389 | extern const internal::VariadicDynCastAllOfMatcher<Decl, RecordDecl> recordDecl; |
| 390 | |
| 391 | /// Matches C++ class declarations. |
| 392 | /// |
| 393 | /// Example matches \c X, \c Z |
| 394 | /// \code |
| 395 | /// class X; |
| 396 | /// template<class T> class Z {}; |
| 397 | /// \endcode |
| 398 | extern const internal::VariadicDynCastAllOfMatcher<Decl, CXXRecordDecl> |
| 399 | cxxRecordDecl; |
| 400 | |
| 401 | /// Matches C++ class template declarations. |
| 402 | /// |
| 403 | /// Example matches \c Z |
| 404 | /// \code |
| 405 | /// template<class T> class Z {}; |
| 406 | /// \endcode |
| 407 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ClassTemplateDecl> |
| 408 | classTemplateDecl; |
| 409 | |
| 410 | /// Matches C++ class template specializations. |
| 411 | /// |
| 412 | /// Given |
| 413 | /// \code |
| 414 | /// template<typename T> class A {}; |
| 415 | /// template<> class A<double> {}; |
| 416 | /// A<int> a; |
| 417 | /// \endcode |
| 418 | /// classTemplateSpecializationDecl() |
| 419 | /// matches the specializations \c A<int> and \c A<double> |
| 420 | extern const internal::VariadicDynCastAllOfMatcher< |
| 421 | Decl, ClassTemplateSpecializationDecl> |
| 422 | classTemplateSpecializationDecl; |
| 423 | |
| 424 | /// Matches C++ class template partial specializations. |
| 425 | /// |
| 426 | /// Given |
| 427 | /// \code |
| 428 | /// template<class T1, class T2, int I> |
| 429 | /// class A {}; |
| 430 | /// |
| 431 | /// template<class T, int I> |
| 432 | /// class A<T, T*, I> {}; |
| 433 | /// |
| 434 | /// template<> |
| 435 | /// class A<int, int, 1> {}; |
| 436 | /// \endcode |
| 437 | /// classTemplatePartialSpecializationDecl() |
| 438 | /// matches the specialization \c A<T,T*,I> but not \c A<int,int,1> |
| 439 | extern const internal::VariadicDynCastAllOfMatcher< |
| 440 | Decl, ClassTemplatePartialSpecializationDecl> |
| 441 | classTemplatePartialSpecializationDecl; |
| 442 | |
| 443 | /// Matches declarator declarations (field, variable, function |
| 444 | /// and non-type template parameter declarations). |
| 445 | /// |
| 446 | /// Given |
| 447 | /// \code |
| 448 | /// class X { int y; }; |
| 449 | /// \endcode |
| 450 | /// declaratorDecl() |
| 451 | /// matches \c int y. |
| 452 | extern const internal::VariadicDynCastAllOfMatcher<Decl, DeclaratorDecl> |
| 453 | declaratorDecl; |
| 454 | |
| 455 | /// Matches parameter variable declarations. |
| 456 | /// |
| 457 | /// Given |
| 458 | /// \code |
| 459 | /// void f(int x); |
| 460 | /// \endcode |
| 461 | /// parmVarDecl() |
| 462 | /// matches \c int x. |
| 463 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ParmVarDecl> |
| 464 | parmVarDecl; |
| 465 | |
| 466 | /// Matches C++ access specifier declarations. |
| 467 | /// |
| 468 | /// Given |
| 469 | /// \code |
| 470 | /// class C { |
| 471 | /// public: |
| 472 | /// int a; |
| 473 | /// }; |
| 474 | /// \endcode |
| 475 | /// accessSpecDecl() |
| 476 | /// matches 'public:' |
| 477 | extern const internal::VariadicDynCastAllOfMatcher<Decl, AccessSpecDecl> |
| 478 | accessSpecDecl; |
| 479 | |
| 480 | /// Matches constructor initializers. |
| 481 | /// |
| 482 | /// Examples matches \c i(42). |
| 483 | /// \code |
| 484 | /// class C { |
| 485 | /// C() : i(42) {} |
| 486 | /// int i; |
| 487 | /// }; |
| 488 | /// \endcode |
| 489 | extern const internal::VariadicAllOfMatcher<CXXCtorInitializer> |
| 490 | cxxCtorInitializer; |
| 491 | |
| 492 | /// Matches template arguments. |
| 493 | /// |
| 494 | /// Given |
| 495 | /// \code |
| 496 | /// template <typename T> struct C {}; |
| 497 | /// C<int> c; |
| 498 | /// \endcode |
| 499 | /// templateArgument() |
| 500 | /// matches 'int' in C<int>. |
| 501 | extern const internal::VariadicAllOfMatcher<TemplateArgument> templateArgument; |
| 502 | |
| 503 | /// Matches template name. |
| 504 | /// |
| 505 | /// Given |
| 506 | /// \code |
| 507 | /// template <typename T> class X { }; |
| 508 | /// X<int> xi; |
| 509 | /// \endcode |
| 510 | /// templateName() |
| 511 | /// matches 'X' in X<int>. |
| 512 | extern const internal::VariadicAllOfMatcher<TemplateName> templateName; |
| 513 | |
| 514 | /// Matches non-type template parameter declarations. |
| 515 | /// |
| 516 | /// Given |
| 517 | /// \code |
| 518 | /// template <typename T, int N> struct C {}; |
| 519 | /// \endcode |
| 520 | /// nonTypeTemplateParmDecl() |
| 521 | /// matches 'N', but not 'T'. |
| 522 | extern const internal::VariadicDynCastAllOfMatcher<Decl, |
| 523 | NonTypeTemplateParmDecl> |
| 524 | nonTypeTemplateParmDecl; |
| 525 | |
| 526 | /// Matches template type parameter declarations. |
| 527 | /// |
| 528 | /// Given |
| 529 | /// \code |
| 530 | /// template <typename T, int N> struct C {}; |
| 531 | /// \endcode |
| 532 | /// templateTypeParmDecl() |
| 533 | /// matches 'T', but not 'N'. |
| 534 | extern const internal::VariadicDynCastAllOfMatcher<Decl, TemplateTypeParmDecl> |
| 535 | templateTypeParmDecl; |
| 536 | |
| 537 | /// Matches public C++ declarations. |
| 538 | /// |
| 539 | /// Given |
| 540 | /// \code |
| 541 | /// class C { |
| 542 | /// public: int a; |
| 543 | /// protected: int b; |
| 544 | /// private: int c; |
| 545 | /// }; |
| 546 | /// \endcode |
| 547 | /// fieldDecl(isPublic()) |
| 548 | /// matches 'int a;' |
| 549 | AST_MATCHER(Decl, isPublic) { |
| 550 | return Node.getAccess() == AS_public; |
| 551 | } |
| 552 | |
| 553 | /// Matches protected C++ declarations. |
| 554 | /// |
| 555 | /// Given |
| 556 | /// \code |
| 557 | /// class C { |
| 558 | /// public: int a; |
| 559 | /// protected: int b; |
| 560 | /// private: int c; |
| 561 | /// }; |
| 562 | /// \endcode |
| 563 | /// fieldDecl(isProtected()) |
| 564 | /// matches 'int b;' |
| 565 | AST_MATCHER(Decl, isProtected) { |
| 566 | return Node.getAccess() == AS_protected; |
| 567 | } |
| 568 | |
| 569 | /// Matches private C++ declarations. |
| 570 | /// |
| 571 | /// Given |
| 572 | /// \code |
| 573 | /// class C { |
| 574 | /// public: int a; |
| 575 | /// protected: int b; |
| 576 | /// private: int c; |
| 577 | /// }; |
| 578 | /// \endcode |
| 579 | /// fieldDecl(isPrivate()) |
| 580 | /// matches 'int c;' |
| 581 | AST_MATCHER(Decl, isPrivate) { |
| 582 | return Node.getAccess() == AS_private; |
| 583 | } |
| 584 | |
| 585 | /// Matches non-static data members that are bit-fields. |
| 586 | /// |
| 587 | /// Given |
| 588 | /// \code |
| 589 | /// class C { |
| 590 | /// int a : 2; |
| 591 | /// int b; |
| 592 | /// }; |
| 593 | /// \endcode |
| 594 | /// fieldDecl(isBitField()) |
| 595 | /// matches 'int a;' but not 'int b;'. |
| 596 | AST_MATCHER(FieldDecl, isBitField) { |
| 597 | return Node.isBitField(); |
| 598 | } |
| 599 | |
| 600 | /// Matches non-static data members that are bit-fields of the specified |
| 601 | /// bit width. |
| 602 | /// |
| 603 | /// Given |
| 604 | /// \code |
| 605 | /// class C { |
| 606 | /// int a : 2; |
| 607 | /// int b : 4; |
| 608 | /// int c : 2; |
| 609 | /// }; |
| 610 | /// \endcode |
| 611 | /// fieldDecl(hasBitWidth(2)) |
| 612 | /// matches 'int a;' and 'int c;' but not 'int b;'. |
| 613 | AST_MATCHER_P(FieldDecl, hasBitWidth, unsigned, Width) { |
| 614 | return Node.isBitField() && |
| 615 | Node.getBitWidthValue(Finder->getASTContext()) == Width; |
| 616 | } |
| 617 | |
| 618 | /// Matches non-static data members that have an in-class initializer. |
| 619 | /// |
| 620 | /// Given |
| 621 | /// \code |
| 622 | /// class C { |
| 623 | /// int a = 2; |
| 624 | /// int b = 3; |
| 625 | /// int c; |
| 626 | /// }; |
| 627 | /// \endcode |
| 628 | /// fieldDecl(hasInClassInitializer(integerLiteral(equals(2)))) |
| 629 | /// matches 'int a;' but not 'int b;'. |
| 630 | /// fieldDecl(hasInClassInitializer(anything())) |
| 631 | /// matches 'int a;' and 'int b;' but not 'int c;'. |
| 632 | AST_MATCHER_P(FieldDecl, hasInClassInitializer, internal::Matcher<Expr>, |
| 633 | InnerMatcher) { |
| 634 | const Expr *Initializer = Node.getInClassInitializer(); |
| 635 | return (Initializer != nullptr && |
| 636 | InnerMatcher.matches(*Initializer, Finder, Builder)); |
| 637 | } |
| 638 | |
| 639 | /// Determines whether the function is "main", which is the entry point |
| 640 | /// into an executable program. |
| 641 | AST_MATCHER(FunctionDecl, isMain) { |
| 642 | return Node.isMain(); |
| 643 | } |
| 644 | |
| 645 | /// Matches the specialized template of a specialization declaration. |
| 646 | /// |
| 647 | /// Given |
| 648 | /// \code |
| 649 | /// template<typename T> class A {}; #1 |
| 650 | /// template<> class A<int> {}; #2 |
| 651 | /// \endcode |
| 652 | /// classTemplateSpecializationDecl(hasSpecializedTemplate(classTemplateDecl())) |
| 653 | /// matches '#2' with classTemplateDecl() matching the class template |
| 654 | /// declaration of 'A' at #1. |
| 655 | AST_MATCHER_P(ClassTemplateSpecializationDecl, hasSpecializedTemplate, |
| 656 | internal::Matcher<ClassTemplateDecl>, InnerMatcher) { |
| 657 | const ClassTemplateDecl* Decl = Node.getSpecializedTemplate(); |
| 658 | return (Decl != nullptr && |
| 659 | InnerMatcher.matches(*Decl, Finder, Builder)); |
| 660 | } |
| 661 | |
| 662 | /// Matches a declaration that has been implicitly added |
| 663 | /// by the compiler (eg. implicit default/copy constructors). |
| 664 | AST_MATCHER(Decl, isImplicit) { |
| 665 | return Node.isImplicit(); |
| 666 | } |
| 667 | |
| 668 | /// Matches classTemplateSpecializations, templateSpecializationType and |
| 669 | /// functionDecl that have at least one TemplateArgument matching the given |
| 670 | /// InnerMatcher. |
| 671 | /// |
| 672 | /// Given |
| 673 | /// \code |
| 674 | /// template<typename T> class A {}; |
| 675 | /// template<> class A<double> {}; |
| 676 | /// A<int> a; |
| 677 | /// |
| 678 | /// template<typename T> f() {}; |
| 679 | /// void func() { f<int>(); }; |
| 680 | /// \endcode |
| 681 | /// |
| 682 | /// \endcode |
| 683 | /// classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| 684 | /// refersToType(asString("int")))) |
| 685 | /// matches the specialization \c A<int> |
| 686 | /// |
| 687 | /// functionDecl(hasAnyTemplateArgument(refersToType(asString("int")))) |
| 688 | /// matches the specialization \c f<int> |
| 689 | AST_POLYMORPHIC_MATCHER_P( |
| 690 | hasAnyTemplateArgument, |
| 691 | AST_POLYMORPHIC_SUPPORTED_TYPES(ClassTemplateSpecializationDecl, |
| 692 | TemplateSpecializationType, |
| 693 | FunctionDecl), |
| 694 | internal::Matcher<TemplateArgument>, InnerMatcher) { |
| 695 | ArrayRef<TemplateArgument> List = |
| 696 | internal::getTemplateSpecializationArgs(Node); |
| 697 | return matchesFirstInRange(InnerMatcher, List.begin(), List.end(), Finder, |
| 698 | Builder); |
| 699 | } |
| 700 | |
| 701 | /// Matches expressions that match InnerMatcher after any implicit AST |
| 702 | /// nodes are stripped off. |
| 703 | /// |
| 704 | /// Parentheses and explicit casts are not discarded. |
| 705 | /// Given |
| 706 | /// \code |
| 707 | /// class C {}; |
| 708 | /// C a = C(); |
| 709 | /// C b; |
| 710 | /// C c = b; |
| 711 | /// \endcode |
| 712 | /// The matchers |
| 713 | /// \code |
| 714 | /// varDecl(hasInitializer(ignoringImplicit(cxxConstructExpr()))) |
| 715 | /// \endcode |
| 716 | /// would match the declarations for a, b, and c. |
| 717 | /// While |
| 718 | /// \code |
| 719 | /// varDecl(hasInitializer(cxxConstructExpr())) |
| 720 | /// \endcode |
| 721 | /// only match the declarations for b and c. |
| 722 | AST_MATCHER_P(Expr, ignoringImplicit, internal::Matcher<Expr>, |
| 723 | InnerMatcher) { |
| 724 | return InnerMatcher.matches(*Node.IgnoreImplicit(), Finder, Builder); |
| 725 | } |
| 726 | |
| 727 | /// Matches expressions that match InnerMatcher after any implicit casts |
| 728 | /// are stripped off. |
| 729 | /// |
| 730 | /// Parentheses and explicit casts are not discarded. |
| 731 | /// Given |
| 732 | /// \code |
| 733 | /// int arr[5]; |
| 734 | /// int a = 0; |
| 735 | /// char b = 0; |
| 736 | /// const int c = a; |
| 737 | /// int *d = arr; |
| 738 | /// long e = (long) 0l; |
| 739 | /// \endcode |
| 740 | /// The matchers |
| 741 | /// \code |
| 742 | /// varDecl(hasInitializer(ignoringImpCasts(integerLiteral()))) |
| 743 | /// varDecl(hasInitializer(ignoringImpCasts(declRefExpr()))) |
| 744 | /// \endcode |
| 745 | /// would match the declarations for a, b, c, and d, but not e. |
| 746 | /// While |
| 747 | /// \code |
| 748 | /// varDecl(hasInitializer(integerLiteral())) |
| 749 | /// varDecl(hasInitializer(declRefExpr())) |
| 750 | /// \endcode |
| 751 | /// only match the declarations for b, c, and d. |
| 752 | AST_MATCHER_P(Expr, ignoringImpCasts, |
| 753 | internal::Matcher<Expr>, InnerMatcher) { |
| 754 | return InnerMatcher.matches(*Node.IgnoreImpCasts(), Finder, Builder); |
| 755 | } |
| 756 | |
| 757 | /// Matches expressions that match InnerMatcher after parentheses and |
| 758 | /// casts are stripped off. |
| 759 | /// |
| 760 | /// Implicit and non-C Style casts are also discarded. |
| 761 | /// Given |
| 762 | /// \code |
| 763 | /// int a = 0; |
| 764 | /// char b = (0); |
| 765 | /// void* c = reinterpret_cast<char*>(0); |
| 766 | /// char d = char(0); |
| 767 | /// \endcode |
| 768 | /// The matcher |
| 769 | /// varDecl(hasInitializer(ignoringParenCasts(integerLiteral()))) |
| 770 | /// would match the declarations for a, b, c, and d. |
| 771 | /// while |
| 772 | /// varDecl(hasInitializer(integerLiteral())) |
| 773 | /// only match the declaration for a. |
| 774 | AST_MATCHER_P(Expr, ignoringParenCasts, internal::Matcher<Expr>, InnerMatcher) { |
| 775 | return InnerMatcher.matches(*Node.IgnoreParenCasts(), Finder, Builder); |
| 776 | } |
| 777 | |
| 778 | /// Matches expressions that match InnerMatcher after implicit casts and |
| 779 | /// parentheses are stripped off. |
| 780 | /// |
| 781 | /// Explicit casts are not discarded. |
| 782 | /// Given |
| 783 | /// \code |
| 784 | /// int arr[5]; |
| 785 | /// int a = 0; |
| 786 | /// char b = (0); |
| 787 | /// const int c = a; |
| 788 | /// int *d = (arr); |
| 789 | /// long e = ((long) 0l); |
| 790 | /// \endcode |
| 791 | /// The matchers |
| 792 | /// varDecl(hasInitializer(ignoringParenImpCasts(integerLiteral()))) |
| 793 | /// varDecl(hasInitializer(ignoringParenImpCasts(declRefExpr()))) |
| 794 | /// would match the declarations for a, b, c, and d, but not e. |
| 795 | /// while |
| 796 | /// varDecl(hasInitializer(integerLiteral())) |
| 797 | /// varDecl(hasInitializer(declRefExpr())) |
| 798 | /// would only match the declaration for a. |
| 799 | AST_MATCHER_P(Expr, ignoringParenImpCasts, |
| 800 | internal::Matcher<Expr>, InnerMatcher) { |
| 801 | return InnerMatcher.matches(*Node.IgnoreParenImpCasts(), Finder, Builder); |
| 802 | } |
| 803 | |
| 804 | /// Matches types that match InnerMatcher after any parens are stripped. |
| 805 | /// |
| 806 | /// Given |
| 807 | /// \code |
| 808 | /// void (*fp)(void); |
| 809 | /// \endcode |
| 810 | /// The matcher |
| 811 | /// \code |
| 812 | /// varDecl(hasType(pointerType(pointee(ignoringParens(functionType()))))) |
| 813 | /// \endcode |
| 814 | /// would match the declaration for fp. |
| 815 | AST_MATCHER_P_OVERLOAD(QualType, ignoringParens, internal::Matcher<QualType>, |
| 816 | InnerMatcher, 0) { |
| 817 | return InnerMatcher.matches(Node.IgnoreParens(), Finder, Builder); |
| 818 | } |
| 819 | |
| 820 | /// Overload \c ignoringParens for \c Expr. |
| 821 | /// |
| 822 | /// Given |
| 823 | /// \code |
| 824 | /// const char* str = ("my-string"); |
| 825 | /// \endcode |
| 826 | /// The matcher |
| 827 | /// \code |
| 828 | /// implicitCastExpr(hasSourceExpression(ignoringParens(stringLiteral()))) |
| 829 | /// \endcode |
| 830 | /// would match the implicit cast resulting from the assignment. |
| 831 | AST_MATCHER_P_OVERLOAD(Expr, ignoringParens, internal::Matcher<Expr>, |
| 832 | InnerMatcher, 1) { |
| 833 | const Expr *E = Node.IgnoreParens(); |
| 834 | return InnerMatcher.matches(*E, Finder, Builder); |
| 835 | } |
| 836 | |
| 837 | /// Matches expressions that are instantiation-dependent even if it is |
| 838 | /// neither type- nor value-dependent. |
| 839 | /// |
| 840 | /// In the following example, the expression sizeof(sizeof(T() + T())) |
| 841 | /// is instantiation-dependent (since it involves a template parameter T), |
| 842 | /// but is neither type- nor value-dependent, since the type of the inner |
| 843 | /// sizeof is known (std::size_t) and therefore the size of the outer |
| 844 | /// sizeof is known. |
| 845 | /// \code |
| 846 | /// template<typename T> |
| 847 | /// void f(T x, T y) { sizeof(sizeof(T() + T()); } |
| 848 | /// \endcode |
| 849 | /// expr(isInstantiationDependent()) matches sizeof(sizeof(T() + T()) |
| 850 | AST_MATCHER(Expr, isInstantiationDependent) { |
| 851 | return Node.isInstantiationDependent(); |
| 852 | } |
| 853 | |
| 854 | /// Matches expressions that are type-dependent because the template type |
| 855 | /// is not yet instantiated. |
| 856 | /// |
| 857 | /// For example, the expressions "x" and "x + y" are type-dependent in |
| 858 | /// the following code, but "y" is not type-dependent: |
| 859 | /// \code |
| 860 | /// template<typename T> |
| 861 | /// void add(T x, int y) { |
| 862 | /// x + y; |
| 863 | /// } |
| 864 | /// \endcode |
| 865 | /// expr(isTypeDependent()) matches x + y |
| 866 | AST_MATCHER(Expr, isTypeDependent) { return Node.isTypeDependent(); } |
| 867 | |
| 868 | /// Matches expression that are value-dependent because they contain a |
| 869 | /// non-type template parameter. |
| 870 | /// |
| 871 | /// For example, the array bound of "Chars" in the following example is |
| 872 | /// value-dependent. |
| 873 | /// \code |
| 874 | /// template<int Size> int f() { return Size; } |
| 875 | /// \endcode |
| 876 | /// expr(isValueDependent()) matches return Size |
| 877 | AST_MATCHER(Expr, isValueDependent) { return Node.isValueDependent(); } |
| 878 | |
| 879 | /// Matches classTemplateSpecializations, templateSpecializationType and |
| 880 | /// functionDecl where the n'th TemplateArgument matches the given InnerMatcher. |
| 881 | /// |
| 882 | /// Given |
| 883 | /// \code |
| 884 | /// template<typename T, typename U> class A {}; |
| 885 | /// A<bool, int> b; |
| 886 | /// A<int, bool> c; |
| 887 | /// |
| 888 | /// template<typename T> void f() {} |
| 889 | /// void func() { f<int>(); }; |
| 890 | /// \endcode |
| 891 | /// classTemplateSpecializationDecl(hasTemplateArgument( |
| 892 | /// 1, refersToType(asString("int")))) |
| 893 | /// matches the specialization \c A<bool, int> |
| 894 | /// |
| 895 | /// functionDecl(hasTemplateArgument(0, refersToType(asString("int")))) |
| 896 | /// matches the specialization \c f<int> |
| 897 | AST_POLYMORPHIC_MATCHER_P2( |
| 898 | hasTemplateArgument, |
| 899 | AST_POLYMORPHIC_SUPPORTED_TYPES(ClassTemplateSpecializationDecl, |
| 900 | TemplateSpecializationType, |
| 901 | FunctionDecl), |
| 902 | unsigned, N, internal::Matcher<TemplateArgument>, InnerMatcher) { |
| 903 | ArrayRef<TemplateArgument> List = |
| 904 | internal::getTemplateSpecializationArgs(Node); |
| 905 | if (List.size() <= N) |
| 906 | return false; |
| 907 | return InnerMatcher.matches(List[N], Finder, Builder); |
| 908 | } |
| 909 | |
| 910 | /// Matches if the number of template arguments equals \p N. |
| 911 | /// |
| 912 | /// Given |
| 913 | /// \code |
| 914 | /// template<typename T> struct C {}; |
| 915 | /// C<int> c; |
| 916 | /// \endcode |
| 917 | /// classTemplateSpecializationDecl(templateArgumentCountIs(1)) |
| 918 | /// matches C<int>. |
| 919 | AST_POLYMORPHIC_MATCHER_P( |
| 920 | templateArgumentCountIs, |
| 921 | AST_POLYMORPHIC_SUPPORTED_TYPES(ClassTemplateSpecializationDecl, |
| 922 | TemplateSpecializationType), |
| 923 | unsigned, N) { |
| 924 | return internal::getTemplateSpecializationArgs(Node).size() == N; |
| 925 | } |
| 926 | |
| 927 | /// Matches a TemplateArgument that refers to a certain type. |
| 928 | /// |
| 929 | /// Given |
| 930 | /// \code |
| 931 | /// struct X {}; |
| 932 | /// template<typename T> struct A {}; |
| 933 | /// A<X> a; |
| 934 | /// \endcode |
| 935 | /// classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| 936 | /// refersToType(class(hasName("X"))))) |
| 937 | /// matches the specialization \c A<X> |
| 938 | AST_MATCHER_P(TemplateArgument, refersToType, |
| 939 | internal::Matcher<QualType>, InnerMatcher) { |
| 940 | if (Node.getKind() != TemplateArgument::Type) |
| 941 | return false; |
| 942 | return InnerMatcher.matches(Node.getAsType(), Finder, Builder); |
| 943 | } |
| 944 | |
| 945 | /// Matches a TemplateArgument that refers to a certain template. |
| 946 | /// |
| 947 | /// Given |
| 948 | /// \code |
| 949 | /// template<template <typename> class S> class X {}; |
| 950 | /// template<typename T> class Y {}; |
| 951 | /// X<Y> xi; |
| 952 | /// \endcode |
| 953 | /// classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| 954 | /// refersToTemplate(templateName()))) |
| 955 | /// matches the specialization \c X<Y> |
| 956 | AST_MATCHER_P(TemplateArgument, refersToTemplate, |
| 957 | internal::Matcher<TemplateName>, InnerMatcher) { |
| 958 | if (Node.getKind() != TemplateArgument::Template) |
| 959 | return false; |
| 960 | return InnerMatcher.matches(Node.getAsTemplate(), Finder, Builder); |
| 961 | } |
| 962 | |
| 963 | /// Matches a canonical TemplateArgument that refers to a certain |
| 964 | /// declaration. |
| 965 | /// |
| 966 | /// Given |
| 967 | /// \code |
| 968 | /// struct B { int next; }; |
| 969 | /// template<int(B::*next_ptr)> struct A {}; |
| 970 | /// A<&B::next> a; |
| 971 | /// \endcode |
| 972 | /// classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| 973 | /// refersToDeclaration(fieldDecl(hasName("next"))))) |
| 974 | /// matches the specialization \c A<&B::next> with \c fieldDecl(...) matching |
| 975 | /// \c B::next |
| 976 | AST_MATCHER_P(TemplateArgument, refersToDeclaration, |
| 977 | internal::Matcher<Decl>, InnerMatcher) { |
| 978 | if (Node.getKind() == TemplateArgument::Declaration) |
| 979 | return InnerMatcher.matches(*Node.getAsDecl(), Finder, Builder); |
| 980 | return false; |
| 981 | } |
| 982 | |
| 983 | /// Matches a sugar TemplateArgument that refers to a certain expression. |
| 984 | /// |
| 985 | /// Given |
| 986 | /// \code |
| 987 | /// struct B { int next; }; |
| 988 | /// template<int(B::*next_ptr)> struct A {}; |
| 989 | /// A<&B::next> a; |
| 990 | /// \endcode |
| 991 | /// templateSpecializationType(hasAnyTemplateArgument( |
| 992 | /// isExpr(hasDescendant(declRefExpr(to(fieldDecl(hasName("next")))))))) |
| 993 | /// matches the specialization \c A<&B::next> with \c fieldDecl(...) matching |
| 994 | /// \c B::next |
| 995 | AST_MATCHER_P(TemplateArgument, isExpr, internal::Matcher<Expr>, InnerMatcher) { |
| 996 | if (Node.getKind() == TemplateArgument::Expression) |
| 997 | return InnerMatcher.matches(*Node.getAsExpr(), Finder, Builder); |
| 998 | return false; |
| 999 | } |
| 1000 | |
| 1001 | /// Matches a TemplateArgument that is an integral value. |
| 1002 | /// |
| 1003 | /// Given |
| 1004 | /// \code |
| 1005 | /// template<int T> struct C {}; |
| 1006 | /// C<42> c; |
| 1007 | /// \endcode |
| 1008 | /// classTemplateSpecializationDecl( |
| 1009 | /// hasAnyTemplateArgument(isIntegral())) |
| 1010 | /// matches the implicit instantiation of C in C<42> |
| 1011 | /// with isIntegral() matching 42. |
| 1012 | AST_MATCHER(TemplateArgument, isIntegral) { |
| 1013 | return Node.getKind() == TemplateArgument::Integral; |
| 1014 | } |
| 1015 | |
| 1016 | /// Matches a TemplateArgument that referes to an integral type. |
| 1017 | /// |
| 1018 | /// Given |
| 1019 | /// \code |
| 1020 | /// template<int T> struct C {}; |
| 1021 | /// C<42> c; |
| 1022 | /// \endcode |
| 1023 | /// classTemplateSpecializationDecl( |
| 1024 | /// hasAnyTemplateArgument(refersToIntegralType(asString("int")))) |
| 1025 | /// matches the implicit instantiation of C in C<42>. |
| 1026 | AST_MATCHER_P(TemplateArgument, refersToIntegralType, |
| 1027 | internal::Matcher<QualType>, InnerMatcher) { |
| 1028 | if (Node.getKind() != TemplateArgument::Integral) |
| 1029 | return false; |
| 1030 | return InnerMatcher.matches(Node.getIntegralType(), Finder, Builder); |
| 1031 | } |
| 1032 | |
| 1033 | /// Matches a TemplateArgument of integral type with a given value. |
| 1034 | /// |
| 1035 | /// Note that 'Value' is a string as the template argument's value is |
| 1036 | /// an arbitrary precision integer. 'Value' must be euqal to the canonical |
| 1037 | /// representation of that integral value in base 10. |
| 1038 | /// |
| 1039 | /// Given |
| 1040 | /// \code |
| 1041 | /// template<int T> struct C {}; |
| 1042 | /// C<42> c; |
| 1043 | /// \endcode |
| 1044 | /// classTemplateSpecializationDecl( |
| 1045 | /// hasAnyTemplateArgument(equalsIntegralValue("42"))) |
| 1046 | /// matches the implicit instantiation of C in C<42>. |
| 1047 | AST_MATCHER_P(TemplateArgument, equalsIntegralValue, |
| 1048 | std::string, Value) { |
| 1049 | if (Node.getKind() != TemplateArgument::Integral) |
| 1050 | return false; |
| 1051 | return Node.getAsIntegral().toString(10) == Value; |
| 1052 | } |
| 1053 | |
| 1054 | /// Matches an Objective-C autorelease pool statement. |
| 1055 | /// |
| 1056 | /// Given |
| 1057 | /// \code |
| 1058 | /// @autoreleasepool { |
| 1059 | /// int x = 0; |
| 1060 | /// } |
| 1061 | /// \endcode |
| 1062 | /// autoreleasePoolStmt(stmt()) matches the declaration of "x" |
| 1063 | /// inside the autorelease pool. |
| 1064 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 1065 | ObjCAutoreleasePoolStmt> autoreleasePoolStmt; |
| 1066 | |
| 1067 | /// Matches any value declaration. |
| 1068 | /// |
| 1069 | /// Example matches A, B, C and F |
| 1070 | /// \code |
| 1071 | /// enum X { A, B, C }; |
| 1072 | /// void F(); |
| 1073 | /// \endcode |
| 1074 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ValueDecl> valueDecl; |
| 1075 | |
| 1076 | /// Matches C++ constructor declarations. |
| 1077 | /// |
| 1078 | /// Example matches Foo::Foo() and Foo::Foo(int) |
| 1079 | /// \code |
| 1080 | /// class Foo { |
| 1081 | /// public: |
| 1082 | /// Foo(); |
| 1083 | /// Foo(int); |
| 1084 | /// int DoSomething(); |
| 1085 | /// }; |
| 1086 | /// \endcode |
| 1087 | extern const internal::VariadicDynCastAllOfMatcher<Decl, CXXConstructorDecl> |
| 1088 | cxxConstructorDecl; |
| 1089 | |
| 1090 | /// Matches explicit C++ destructor declarations. |
| 1091 | /// |
| 1092 | /// Example matches Foo::~Foo() |
| 1093 | /// \code |
| 1094 | /// class Foo { |
| 1095 | /// public: |
| 1096 | /// virtual ~Foo(); |
| 1097 | /// }; |
| 1098 | /// \endcode |
| 1099 | extern const internal::VariadicDynCastAllOfMatcher<Decl, CXXDestructorDecl> |
| 1100 | cxxDestructorDecl; |
| 1101 | |
| 1102 | /// Matches enum declarations. |
| 1103 | /// |
| 1104 | /// Example matches X |
| 1105 | /// \code |
| 1106 | /// enum X { |
| 1107 | /// A, B, C |
| 1108 | /// }; |
| 1109 | /// \endcode |
| 1110 | extern const internal::VariadicDynCastAllOfMatcher<Decl, EnumDecl> enumDecl; |
| 1111 | |
| 1112 | /// Matches enum constants. |
| 1113 | /// |
| 1114 | /// Example matches A, B, C |
| 1115 | /// \code |
| 1116 | /// enum X { |
| 1117 | /// A, B, C |
| 1118 | /// }; |
| 1119 | /// \endcode |
| 1120 | extern const internal::VariadicDynCastAllOfMatcher<Decl, EnumConstantDecl> |
| 1121 | enumConstantDecl; |
| 1122 | |
| 1123 | /// Matches method declarations. |
| 1124 | /// |
| 1125 | /// Example matches y |
| 1126 | /// \code |
| 1127 | /// class X { void y(); }; |
| 1128 | /// \endcode |
| 1129 | extern const internal::VariadicDynCastAllOfMatcher<Decl, CXXMethodDecl> |
| 1130 | cxxMethodDecl; |
| 1131 | |
| 1132 | /// Matches conversion operator declarations. |
| 1133 | /// |
| 1134 | /// Example matches the operator. |
| 1135 | /// \code |
| 1136 | /// class X { operator int() const; }; |
| 1137 | /// \endcode |
| 1138 | extern const internal::VariadicDynCastAllOfMatcher<Decl, CXXConversionDecl> |
| 1139 | cxxConversionDecl; |
| 1140 | |
| 1141 | /// Matches variable declarations. |
| 1142 | /// |
| 1143 | /// Note: this does not match declarations of member variables, which are |
| 1144 | /// "field" declarations in Clang parlance. |
| 1145 | /// |
| 1146 | /// Example matches a |
| 1147 | /// \code |
| 1148 | /// int a; |
| 1149 | /// \endcode |
| 1150 | extern const internal::VariadicDynCastAllOfMatcher<Decl, VarDecl> varDecl; |
| 1151 | |
| 1152 | /// Matches field declarations. |
| 1153 | /// |
| 1154 | /// Given |
| 1155 | /// \code |
| 1156 | /// class X { int m; }; |
| 1157 | /// \endcode |
| 1158 | /// fieldDecl() |
| 1159 | /// matches 'm'. |
| 1160 | extern const internal::VariadicDynCastAllOfMatcher<Decl, FieldDecl> fieldDecl; |
| 1161 | |
| 1162 | /// Matches indirect field declarations. |
| 1163 | /// |
| 1164 | /// Given |
| 1165 | /// \code |
| 1166 | /// struct X { struct { int a; }; }; |
| 1167 | /// \endcode |
| 1168 | /// indirectFieldDecl() |
| 1169 | /// matches 'a'. |
| 1170 | extern const internal::VariadicDynCastAllOfMatcher<Decl, IndirectFieldDecl> |
| 1171 | indirectFieldDecl; |
| 1172 | |
| 1173 | /// Matches function declarations. |
| 1174 | /// |
| 1175 | /// Example matches f |
| 1176 | /// \code |
| 1177 | /// void f(); |
| 1178 | /// \endcode |
| 1179 | extern const internal::VariadicDynCastAllOfMatcher<Decl, FunctionDecl> |
| 1180 | functionDecl; |
| 1181 | |
| 1182 | /// Matches C++ function template declarations. |
| 1183 | /// |
| 1184 | /// Example matches f |
| 1185 | /// \code |
| 1186 | /// template<class T> void f(T t) {} |
| 1187 | /// \endcode |
| 1188 | extern const internal::VariadicDynCastAllOfMatcher<Decl, FunctionTemplateDecl> |
| 1189 | functionTemplateDecl; |
| 1190 | |
| 1191 | /// Matches friend declarations. |
| 1192 | /// |
| 1193 | /// Given |
| 1194 | /// \code |
| 1195 | /// class X { friend void foo(); }; |
| 1196 | /// \endcode |
| 1197 | /// friendDecl() |
| 1198 | /// matches 'friend void foo()'. |
| 1199 | extern const internal::VariadicDynCastAllOfMatcher<Decl, FriendDecl> friendDecl; |
| 1200 | |
| 1201 | /// Matches statements. |
| 1202 | /// |
| 1203 | /// Given |
| 1204 | /// \code |
| 1205 | /// { ++a; } |
| 1206 | /// \endcode |
| 1207 | /// stmt() |
| 1208 | /// matches both the compound statement '{ ++a; }' and '++a'. |
| 1209 | extern const internal::VariadicAllOfMatcher<Stmt> stmt; |
| 1210 | |
| 1211 | /// Matches declaration statements. |
| 1212 | /// |
| 1213 | /// Given |
| 1214 | /// \code |
| 1215 | /// int a; |
| 1216 | /// \endcode |
| 1217 | /// declStmt() |
| 1218 | /// matches 'int a'. |
| 1219 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, DeclStmt> declStmt; |
| 1220 | |
| 1221 | /// Matches member expressions. |
| 1222 | /// |
| 1223 | /// Given |
| 1224 | /// \code |
| 1225 | /// class Y { |
| 1226 | /// void x() { this->x(); x(); Y y; y.x(); a; this->b; Y::b; } |
| 1227 | /// int a; static int b; |
| 1228 | /// }; |
| 1229 | /// \endcode |
| 1230 | /// memberExpr() |
| 1231 | /// matches this->x, x, y.x, a, this->b |
| 1232 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, MemberExpr> memberExpr; |
| 1233 | |
| 1234 | /// Matches unresolved member expressions. |
| 1235 | /// |
| 1236 | /// Given |
| 1237 | /// \code |
| 1238 | /// struct X { |
| 1239 | /// template <class T> void f(); |
| 1240 | /// void g(); |
| 1241 | /// }; |
| 1242 | /// template <class T> void h() { X x; x.f<T>(); x.g(); } |
| 1243 | /// \endcode |
| 1244 | /// unresolvedMemberExpr() |
| 1245 | /// matches x.f<T> |
| 1246 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, UnresolvedMemberExpr> |
| 1247 | unresolvedMemberExpr; |
| 1248 | |
| 1249 | /// Matches member expressions where the actual member referenced could not be |
| 1250 | /// resolved because the base expression or the member name was dependent. |
| 1251 | /// |
| 1252 | /// Given |
| 1253 | /// \code |
| 1254 | /// template <class T> void f() { T t; t.g(); } |
| 1255 | /// \endcode |
| 1256 | /// cxxDependentScopeMemberExpr() |
| 1257 | /// matches t.g |
| 1258 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 1259 | CXXDependentScopeMemberExpr> |
| 1260 | cxxDependentScopeMemberExpr; |
| 1261 | |
| 1262 | /// Matches call expressions. |
| 1263 | /// |
| 1264 | /// Example matches x.y() and y() |
| 1265 | /// \code |
| 1266 | /// X x; |
| 1267 | /// x.y(); |
| 1268 | /// y(); |
| 1269 | /// \endcode |
| 1270 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CallExpr> callExpr; |
| 1271 | |
| 1272 | /// Matches call expressions which were resolved using ADL. |
| 1273 | /// |
| 1274 | /// Example matches y(x) but not y(42) or NS::y(x). |
| 1275 | /// \code |
| 1276 | /// namespace NS { |
| 1277 | /// struct X {}; |
| 1278 | /// void y(X); |
| 1279 | /// } |
| 1280 | /// |
| 1281 | /// void y(...); |
| 1282 | /// |
| 1283 | /// void test() { |
| 1284 | /// NS::X x; |
| 1285 | /// y(x); // Matches |
| 1286 | /// NS::y(x); // Doesn't match |
| 1287 | /// y(42); // Doesn't match |
| 1288 | /// using NS::y; |
| 1289 | /// y(x); // Found by both unqualified lookup and ADL, doesn't match |
| 1290 | // } |
| 1291 | /// \endcode |
| 1292 | AST_MATCHER(CallExpr, usesADL) { return Node.usesADL(); } |
| 1293 | |
| 1294 | /// Matches lambda expressions. |
| 1295 | /// |
| 1296 | /// Example matches [&](){return 5;} |
| 1297 | /// \code |
| 1298 | /// [&](){return 5;} |
| 1299 | /// \endcode |
| 1300 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, LambdaExpr> lambdaExpr; |
| 1301 | |
| 1302 | /// Matches member call expressions. |
| 1303 | /// |
| 1304 | /// Example matches x.y() |
| 1305 | /// \code |
| 1306 | /// X x; |
| 1307 | /// x.y(); |
| 1308 | /// \endcode |
| 1309 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXMemberCallExpr> |
| 1310 | cxxMemberCallExpr; |
| 1311 | |
| 1312 | /// Matches ObjectiveC Message invocation expressions. |
| 1313 | /// |
| 1314 | /// The innermost message send invokes the "alloc" class method on the |
| 1315 | /// NSString class, while the outermost message send invokes the |
| 1316 | /// "initWithString" instance method on the object returned from |
| 1317 | /// NSString's "alloc". This matcher should match both message sends. |
| 1318 | /// \code |
| 1319 | /// [[NSString alloc] initWithString:@"Hello"] |
| 1320 | /// \endcode |
| 1321 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ObjCMessageExpr> |
| 1322 | objcMessageExpr; |
| 1323 | |
| 1324 | /// Matches Objective-C interface declarations. |
| 1325 | /// |
| 1326 | /// Example matches Foo |
| 1327 | /// \code |
| 1328 | /// @interface Foo |
| 1329 | /// @end |
| 1330 | /// \endcode |
| 1331 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCInterfaceDecl> |
| 1332 | objcInterfaceDecl; |
| 1333 | |
| 1334 | /// Matches Objective-C implementation declarations. |
| 1335 | /// |
| 1336 | /// Example matches Foo |
| 1337 | /// \code |
| 1338 | /// @implementation Foo |
| 1339 | /// @end |
| 1340 | /// \endcode |
| 1341 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCImplementationDecl> |
| 1342 | objcImplementationDecl; |
| 1343 | |
| 1344 | /// Matches Objective-C protocol declarations. |
| 1345 | /// |
| 1346 | /// Example matches FooDelegate |
| 1347 | /// \code |
| 1348 | /// @protocol FooDelegate |
| 1349 | /// @end |
| 1350 | /// \endcode |
| 1351 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCProtocolDecl> |
| 1352 | objcProtocolDecl; |
| 1353 | |
| 1354 | /// Matches Objective-C category declarations. |
| 1355 | /// |
| 1356 | /// Example matches Foo (Additions) |
| 1357 | /// \code |
| 1358 | /// @interface Foo (Additions) |
| 1359 | /// @end |
| 1360 | /// \endcode |
| 1361 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCCategoryDecl> |
| 1362 | objcCategoryDecl; |
| 1363 | |
| 1364 | /// Matches Objective-C category definitions. |
| 1365 | /// |
| 1366 | /// Example matches Foo (Additions) |
| 1367 | /// \code |
| 1368 | /// @implementation Foo (Additions) |
| 1369 | /// @end |
| 1370 | /// \endcode |
| 1371 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCCategoryImplDecl> |
| 1372 | objcCategoryImplDecl; |
| 1373 | |
| 1374 | /// Matches Objective-C method declarations. |
| 1375 | /// |
| 1376 | /// Example matches both declaration and definition of -[Foo method] |
| 1377 | /// \code |
| 1378 | /// @interface Foo |
| 1379 | /// - (void)method; |
| 1380 | /// @end |
| 1381 | /// |
| 1382 | /// @implementation Foo |
| 1383 | /// - (void)method {} |
| 1384 | /// @end |
| 1385 | /// \endcode |
| 1386 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCMethodDecl> |
| 1387 | objcMethodDecl; |
| 1388 | |
| 1389 | /// Matches block declarations. |
| 1390 | /// |
| 1391 | /// Example matches the declaration of the nameless block printing an input |
| 1392 | /// integer. |
| 1393 | /// |
| 1394 | /// \code |
| 1395 | /// myFunc(^(int p) { |
| 1396 | /// printf("%d", p); |
| 1397 | /// }) |
| 1398 | /// \endcode |
| 1399 | extern const internal::VariadicDynCastAllOfMatcher<Decl, BlockDecl> |
| 1400 | blockDecl; |
| 1401 | |
| 1402 | /// Matches Objective-C instance variable declarations. |
| 1403 | /// |
| 1404 | /// Example matches _enabled |
| 1405 | /// \code |
| 1406 | /// @implementation Foo { |
| 1407 | /// BOOL _enabled; |
| 1408 | /// } |
| 1409 | /// @end |
| 1410 | /// \endcode |
| 1411 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCIvarDecl> |
| 1412 | objcIvarDecl; |
| 1413 | |
| 1414 | /// Matches Objective-C property declarations. |
| 1415 | /// |
| 1416 | /// Example matches enabled |
| 1417 | /// \code |
| 1418 | /// @interface Foo |
| 1419 | /// @property BOOL enabled; |
| 1420 | /// @end |
| 1421 | /// \endcode |
| 1422 | extern const internal::VariadicDynCastAllOfMatcher<Decl, ObjCPropertyDecl> |
| 1423 | objcPropertyDecl; |
| 1424 | |
| 1425 | /// Matches Objective-C \@throw statements. |
| 1426 | /// |
| 1427 | /// Example matches \@throw |
| 1428 | /// \code |
| 1429 | /// @throw obj; |
| 1430 | /// \endcode |
| 1431 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ObjCAtThrowStmt> |
| 1432 | objcThrowStmt; |
| 1433 | |
| 1434 | /// Matches Objective-C @try statements. |
| 1435 | /// |
| 1436 | /// Example matches @try |
| 1437 | /// \code |
| 1438 | /// @try {} |
| 1439 | /// @catch (...) {} |
| 1440 | /// \endcode |
| 1441 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ObjCAtTryStmt> |
| 1442 | objcTryStmt; |
| 1443 | |
| 1444 | /// Matches Objective-C @catch statements. |
| 1445 | /// |
| 1446 | /// Example matches @catch |
| 1447 | /// \code |
| 1448 | /// @try {} |
| 1449 | /// @catch (...) {} |
| 1450 | /// \endcode |
| 1451 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ObjCAtCatchStmt> |
| 1452 | objcCatchStmt; |
| 1453 | |
| 1454 | /// Matches Objective-C @finally statements. |
| 1455 | /// |
| 1456 | /// Example matches @finally |
| 1457 | /// \code |
| 1458 | /// @try {} |
| 1459 | /// @finally {} |
| 1460 | /// \endcode |
| 1461 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ObjCAtFinallyStmt> |
| 1462 | objcFinallyStmt; |
| 1463 | |
| 1464 | /// Matches expressions that introduce cleanups to be run at the end |
| 1465 | /// of the sub-expression's evaluation. |
| 1466 | /// |
| 1467 | /// Example matches std::string() |
| 1468 | /// \code |
| 1469 | /// const std::string str = std::string(); |
| 1470 | /// \endcode |
| 1471 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ExprWithCleanups> |
| 1472 | exprWithCleanups; |
| 1473 | |
| 1474 | /// Matches init list expressions. |
| 1475 | /// |
| 1476 | /// Given |
| 1477 | /// \code |
| 1478 | /// int a[] = { 1, 2 }; |
| 1479 | /// struct B { int x, y; }; |
| 1480 | /// B b = { 5, 6 }; |
| 1481 | /// \endcode |
| 1482 | /// initListExpr() |
| 1483 | /// matches "{ 1, 2 }" and "{ 5, 6 }" |
| 1484 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, InitListExpr> |
| 1485 | initListExpr; |
| 1486 | |
| 1487 | /// Matches the syntactic form of init list expressions |
| 1488 | /// (if expression have it). |
| 1489 | AST_MATCHER_P(InitListExpr, hasSyntacticForm, |
| 1490 | internal::Matcher<Expr>, InnerMatcher) { |
| 1491 | const Expr *SyntForm = Node.getSyntacticForm(); |
| 1492 | return (SyntForm != nullptr && |
| 1493 | InnerMatcher.matches(*SyntForm, Finder, Builder)); |
| 1494 | } |
| 1495 | |
| 1496 | /// Matches C++ initializer list expressions. |
| 1497 | /// |
| 1498 | /// Given |
| 1499 | /// \code |
| 1500 | /// std::vector<int> a({ 1, 2, 3 }); |
| 1501 | /// std::vector<int> b = { 4, 5 }; |
| 1502 | /// int c[] = { 6, 7 }; |
| 1503 | /// std::pair<int, int> d = { 8, 9 }; |
| 1504 | /// \endcode |
| 1505 | /// cxxStdInitializerListExpr() |
| 1506 | /// matches "{ 1, 2, 3 }" and "{ 4, 5 }" |
| 1507 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 1508 | CXXStdInitializerListExpr> |
| 1509 | cxxStdInitializerListExpr; |
| 1510 | |
| 1511 | /// Matches implicit initializers of init list expressions. |
| 1512 | /// |
| 1513 | /// Given |
| 1514 | /// \code |
| 1515 | /// point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; |
| 1516 | /// \endcode |
| 1517 | /// implicitValueInitExpr() |
| 1518 | /// matches "[0].y" (implicitly) |
| 1519 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ImplicitValueInitExpr> |
| 1520 | implicitValueInitExpr; |
| 1521 | |
| 1522 | /// Matches paren list expressions. |
| 1523 | /// ParenListExprs don't have a predefined type and are used for late parsing. |
| 1524 | /// In the final AST, they can be met in template declarations. |
| 1525 | /// |
| 1526 | /// Given |
| 1527 | /// \code |
| 1528 | /// template<typename T> class X { |
| 1529 | /// void f() { |
| 1530 | /// X x(*this); |
| 1531 | /// int a = 0, b = 1; int i = (a, b); |
| 1532 | /// } |
| 1533 | /// }; |
| 1534 | /// \endcode |
| 1535 | /// parenListExpr() matches "*this" but NOT matches (a, b) because (a, b) |
| 1536 | /// has a predefined type and is a ParenExpr, not a ParenListExpr. |
| 1537 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ParenListExpr> |
| 1538 | parenListExpr; |
| 1539 | |
| 1540 | /// Matches substitutions of non-type template parameters. |
| 1541 | /// |
| 1542 | /// Given |
| 1543 | /// \code |
| 1544 | /// template <int N> |
| 1545 | /// struct A { static const int n = N; }; |
| 1546 | /// struct B : public A<42> {}; |
| 1547 | /// \endcode |
| 1548 | /// substNonTypeTemplateParmExpr() |
| 1549 | /// matches "N" in the right-hand side of "static const int n = N;" |
| 1550 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 1551 | SubstNonTypeTemplateParmExpr> |
| 1552 | substNonTypeTemplateParmExpr; |
| 1553 | |
| 1554 | /// Matches using declarations. |
| 1555 | /// |
| 1556 | /// Given |
| 1557 | /// \code |
| 1558 | /// namespace X { int x; } |
| 1559 | /// using X::x; |
| 1560 | /// \endcode |
| 1561 | /// usingDecl() |
| 1562 | /// matches \code using X::x \endcode |
| 1563 | extern const internal::VariadicDynCastAllOfMatcher<Decl, UsingDecl> usingDecl; |
| 1564 | |
| 1565 | /// Matches using namespace declarations. |
| 1566 | /// |
| 1567 | /// Given |
| 1568 | /// \code |
| 1569 | /// namespace X { int x; } |
| 1570 | /// using namespace X; |
| 1571 | /// \endcode |
| 1572 | /// usingDirectiveDecl() |
| 1573 | /// matches \code using namespace X \endcode |
| 1574 | extern const internal::VariadicDynCastAllOfMatcher<Decl, UsingDirectiveDecl> |
| 1575 | usingDirectiveDecl; |
| 1576 | |
| 1577 | /// Matches reference to a name that can be looked up during parsing |
| 1578 | /// but could not be resolved to a specific declaration. |
| 1579 | /// |
| 1580 | /// Given |
| 1581 | /// \code |
| 1582 | /// template<typename T> |
| 1583 | /// T foo() { T a; return a; } |
| 1584 | /// template<typename T> |
| 1585 | /// void bar() { |
| 1586 | /// foo<T>(); |
| 1587 | /// } |
| 1588 | /// \endcode |
| 1589 | /// unresolvedLookupExpr() |
| 1590 | /// matches \code foo<T>() \endcode |
| 1591 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, UnresolvedLookupExpr> |
| 1592 | unresolvedLookupExpr; |
| 1593 | |
| 1594 | /// Matches unresolved using value declarations. |
| 1595 | /// |
| 1596 | /// Given |
| 1597 | /// \code |
| 1598 | /// template<typename X> |
| 1599 | /// class C : private X { |
| 1600 | /// using X::x; |
| 1601 | /// }; |
| 1602 | /// \endcode |
| 1603 | /// unresolvedUsingValueDecl() |
| 1604 | /// matches \code using X::x \endcode |
| 1605 | extern const internal::VariadicDynCastAllOfMatcher<Decl, |
| 1606 | UnresolvedUsingValueDecl> |
| 1607 | unresolvedUsingValueDecl; |
| 1608 | |
| 1609 | /// Matches unresolved using value declarations that involve the |
| 1610 | /// typename. |
| 1611 | /// |
| 1612 | /// Given |
| 1613 | /// \code |
| 1614 | /// template <typename T> |
| 1615 | /// struct Base { typedef T Foo; }; |
| 1616 | /// |
| 1617 | /// template<typename T> |
| 1618 | /// struct S : private Base<T> { |
| 1619 | /// using typename Base<T>::Foo; |
| 1620 | /// }; |
| 1621 | /// \endcode |
| 1622 | /// unresolvedUsingTypenameDecl() |
| 1623 | /// matches \code using Base<T>::Foo \endcode |
| 1624 | extern const internal::VariadicDynCastAllOfMatcher<Decl, |
| 1625 | UnresolvedUsingTypenameDecl> |
| 1626 | unresolvedUsingTypenameDecl; |
| 1627 | |
| 1628 | /// Matches a constant expression wrapper. |
| 1629 | /// |
| 1630 | /// Example matches the constant in the case statement: |
| 1631 | /// (matcher = constantExpr()) |
| 1632 | /// \code |
| 1633 | /// switch (a) { |
| 1634 | /// case 37: break; |
| 1635 | /// } |
| 1636 | /// \endcode |
| 1637 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ConstantExpr> |
| 1638 | constantExpr; |
| 1639 | |
| 1640 | /// Matches parentheses used in expressions. |
| 1641 | /// |
| 1642 | /// Example matches (foo() + 1) |
| 1643 | /// \code |
| 1644 | /// int foo() { return 1; } |
| 1645 | /// int a = (foo() + 1); |
| 1646 | /// \endcode |
| 1647 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ParenExpr> parenExpr; |
| 1648 | |
| 1649 | /// Matches constructor call expressions (including implicit ones). |
| 1650 | /// |
| 1651 | /// Example matches string(ptr, n) and ptr within arguments of f |
| 1652 | /// (matcher = cxxConstructExpr()) |
| 1653 | /// \code |
| 1654 | /// void f(const string &a, const string &b); |
| 1655 | /// char *ptr; |
| 1656 | /// int n; |
| 1657 | /// f(string(ptr, n), ptr); |
| 1658 | /// \endcode |
| 1659 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXConstructExpr> |
| 1660 | cxxConstructExpr; |
| 1661 | |
| 1662 | /// Matches unresolved constructor call expressions. |
| 1663 | /// |
| 1664 | /// Example matches T(t) in return statement of f |
| 1665 | /// (matcher = cxxUnresolvedConstructExpr()) |
| 1666 | /// \code |
| 1667 | /// template <typename T> |
| 1668 | /// void f(const T& t) { return T(t); } |
| 1669 | /// \endcode |
| 1670 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 1671 | CXXUnresolvedConstructExpr> |
| 1672 | cxxUnresolvedConstructExpr; |
| 1673 | |
| 1674 | /// Matches implicit and explicit this expressions. |
| 1675 | /// |
| 1676 | /// Example matches the implicit this expression in "return i". |
| 1677 | /// (matcher = cxxThisExpr()) |
| 1678 | /// \code |
| 1679 | /// struct foo { |
| 1680 | /// int i; |
| 1681 | /// int f() { return i; } |
| 1682 | /// }; |
| 1683 | /// \endcode |
| 1684 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXThisExpr> |
| 1685 | cxxThisExpr; |
| 1686 | |
| 1687 | /// Matches nodes where temporaries are created. |
| 1688 | /// |
| 1689 | /// Example matches FunctionTakesString(GetStringByValue()) |
| 1690 | /// (matcher = cxxBindTemporaryExpr()) |
| 1691 | /// \code |
| 1692 | /// FunctionTakesString(GetStringByValue()); |
| 1693 | /// FunctionTakesStringByPointer(GetStringPointer()); |
| 1694 | /// \endcode |
| 1695 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXBindTemporaryExpr> |
| 1696 | cxxBindTemporaryExpr; |
| 1697 | |
| 1698 | /// Matches nodes where temporaries are materialized. |
| 1699 | /// |
| 1700 | /// Example: Given |
| 1701 | /// \code |
| 1702 | /// struct T {void func();}; |
| 1703 | /// T f(); |
| 1704 | /// void g(T); |
| 1705 | /// \endcode |
| 1706 | /// materializeTemporaryExpr() matches 'f()' in these statements |
| 1707 | /// \code |
| 1708 | /// T u(f()); |
| 1709 | /// g(f()); |
| 1710 | /// f().func(); |
| 1711 | /// \endcode |
| 1712 | /// but does not match |
| 1713 | /// \code |
| 1714 | /// f(); |
| 1715 | /// \endcode |
| 1716 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 1717 | MaterializeTemporaryExpr> |
| 1718 | materializeTemporaryExpr; |
| 1719 | |
| 1720 | /// Matches new expressions. |
| 1721 | /// |
| 1722 | /// Given |
| 1723 | /// \code |
| 1724 | /// new X; |
| 1725 | /// \endcode |
| 1726 | /// cxxNewExpr() |
| 1727 | /// matches 'new X'. |
| 1728 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXNewExpr> cxxNewExpr; |
| 1729 | |
| 1730 | /// Matches delete expressions. |
| 1731 | /// |
| 1732 | /// Given |
| 1733 | /// \code |
| 1734 | /// delete X; |
| 1735 | /// \endcode |
| 1736 | /// cxxDeleteExpr() |
| 1737 | /// matches 'delete X'. |
| 1738 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXDeleteExpr> |
| 1739 | cxxDeleteExpr; |
| 1740 | |
| 1741 | /// Matches array subscript expressions. |
| 1742 | /// |
| 1743 | /// Given |
| 1744 | /// \code |
| 1745 | /// int i = a[1]; |
| 1746 | /// \endcode |
| 1747 | /// arraySubscriptExpr() |
| 1748 | /// matches "a[1]" |
| 1749 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ArraySubscriptExpr> |
| 1750 | arraySubscriptExpr; |
| 1751 | |
| 1752 | /// Matches the value of a default argument at the call site. |
| 1753 | /// |
| 1754 | /// Example matches the CXXDefaultArgExpr placeholder inserted for the |
| 1755 | /// default value of the second parameter in the call expression f(42) |
| 1756 | /// (matcher = cxxDefaultArgExpr()) |
| 1757 | /// \code |
| 1758 | /// void f(int x, int y = 0); |
| 1759 | /// f(42); |
| 1760 | /// \endcode |
| 1761 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXDefaultArgExpr> |
| 1762 | cxxDefaultArgExpr; |
| 1763 | |
| 1764 | /// Matches overloaded operator calls. |
| 1765 | /// |
| 1766 | /// Note that if an operator isn't overloaded, it won't match. Instead, use |
| 1767 | /// binaryOperator matcher. |
| 1768 | /// Currently it does not match operators such as new delete. |
| 1769 | /// FIXME: figure out why these do not match? |
| 1770 | /// |
| 1771 | /// Example matches both operator<<((o << b), c) and operator<<(o, b) |
| 1772 | /// (matcher = cxxOperatorCallExpr()) |
| 1773 | /// \code |
| 1774 | /// ostream &operator<< (ostream &out, int i) { }; |
| 1775 | /// ostream &o; int b = 1, c = 1; |
| 1776 | /// o << b << c; |
| 1777 | /// \endcode |
| 1778 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXOperatorCallExpr> |
| 1779 | cxxOperatorCallExpr; |
| 1780 | |
| 1781 | /// Matches expressions. |
| 1782 | /// |
| 1783 | /// Example matches x() |
| 1784 | /// \code |
| 1785 | /// void f() { x(); } |
| 1786 | /// \endcode |
| 1787 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, Expr> expr; |
| 1788 | |
| 1789 | /// Matches expressions that refer to declarations. |
| 1790 | /// |
| 1791 | /// Example matches x in if (x) |
| 1792 | /// \code |
| 1793 | /// bool x; |
| 1794 | /// if (x) {} |
| 1795 | /// \endcode |
| 1796 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, DeclRefExpr> |
| 1797 | declRefExpr; |
| 1798 | |
| 1799 | /// Matches a reference to an ObjCIvar. |
| 1800 | /// |
| 1801 | /// Example: matches "a" in "init" method: |
| 1802 | /// \code |
| 1803 | /// @implementation A { |
| 1804 | /// NSString *a; |
| 1805 | /// } |
| 1806 | /// - (void) init { |
| 1807 | /// a = @"hello"; |
| 1808 | /// } |
| 1809 | /// \endcode |
| 1810 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ObjCIvarRefExpr> |
| 1811 | objcIvarRefExpr; |
| 1812 | |
| 1813 | /// Matches a reference to a block. |
| 1814 | /// |
| 1815 | /// Example: matches "^{}": |
| 1816 | /// \code |
| 1817 | /// void f() { ^{}(); } |
| 1818 | /// \endcode |
| 1819 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, BlockExpr> blockExpr; |
| 1820 | |
| 1821 | /// Matches if statements. |
| 1822 | /// |
| 1823 | /// Example matches 'if (x) {}' |
| 1824 | /// \code |
| 1825 | /// if (x) {} |
| 1826 | /// \endcode |
| 1827 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, IfStmt> ifStmt; |
| 1828 | |
| 1829 | /// Matches for statements. |
| 1830 | /// |
| 1831 | /// Example matches 'for (;;) {}' |
| 1832 | /// \code |
| 1833 | /// for (;;) {} |
| 1834 | /// int i[] = {1, 2, 3}; for (auto a : i); |
| 1835 | /// \endcode |
| 1836 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ForStmt> forStmt; |
| 1837 | |
| 1838 | /// Matches the increment statement of a for loop. |
| 1839 | /// |
| 1840 | /// Example: |
| 1841 | /// forStmt(hasIncrement(unaryOperator(hasOperatorName("++")))) |
| 1842 | /// matches '++x' in |
| 1843 | /// \code |
| 1844 | /// for (x; x < N; ++x) { } |
| 1845 | /// \endcode |
| 1846 | AST_MATCHER_P(ForStmt, hasIncrement, internal::Matcher<Stmt>, |
| 1847 | InnerMatcher) { |
| 1848 | const Stmt *const Increment = Node.getInc(); |
| 1849 | return (Increment != nullptr && |
| 1850 | InnerMatcher.matches(*Increment, Finder, Builder)); |
| 1851 | } |
| 1852 | |
| 1853 | /// Matches the initialization statement of a for loop. |
| 1854 | /// |
| 1855 | /// Example: |
| 1856 | /// forStmt(hasLoopInit(declStmt())) |
| 1857 | /// matches 'int x = 0' in |
| 1858 | /// \code |
| 1859 | /// for (int x = 0; x < N; ++x) { } |
| 1860 | /// \endcode |
| 1861 | AST_MATCHER_P(ForStmt, hasLoopInit, internal::Matcher<Stmt>, |
| 1862 | InnerMatcher) { |
| 1863 | const Stmt *const Init = Node.getInit(); |
| 1864 | return (Init != nullptr && InnerMatcher.matches(*Init, Finder, Builder)); |
| 1865 | } |
| 1866 | |
| 1867 | /// Matches range-based for statements. |
| 1868 | /// |
| 1869 | /// cxxForRangeStmt() matches 'for (auto a : i)' |
| 1870 | /// \code |
| 1871 | /// int i[] = {1, 2, 3}; for (auto a : i); |
| 1872 | /// for(int j = 0; j < 5; ++j); |
| 1873 | /// \endcode |
| 1874 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXForRangeStmt> |
| 1875 | cxxForRangeStmt; |
| 1876 | |
| 1877 | /// Matches the initialization statement of a for loop. |
| 1878 | /// |
| 1879 | /// Example: |
| 1880 | /// forStmt(hasLoopVariable(anything())) |
| 1881 | /// matches 'int x' in |
| 1882 | /// \code |
| 1883 | /// for (int x : a) { } |
| 1884 | /// \endcode |
| 1885 | AST_MATCHER_P(CXXForRangeStmt, hasLoopVariable, internal::Matcher<VarDecl>, |
| 1886 | InnerMatcher) { |
| 1887 | const VarDecl *const Var = Node.getLoopVariable(); |
| 1888 | return (Var != nullptr && InnerMatcher.matches(*Var, Finder, Builder)); |
| 1889 | } |
| 1890 | |
| 1891 | /// Matches the range initialization statement of a for loop. |
| 1892 | /// |
| 1893 | /// Example: |
| 1894 | /// forStmt(hasRangeInit(anything())) |
| 1895 | /// matches 'a' in |
| 1896 | /// \code |
| 1897 | /// for (int x : a) { } |
| 1898 | /// \endcode |
| 1899 | AST_MATCHER_P(CXXForRangeStmt, hasRangeInit, internal::Matcher<Expr>, |
| 1900 | InnerMatcher) { |
| 1901 | const Expr *const Init = Node.getRangeInit(); |
| 1902 | return (Init != nullptr && InnerMatcher.matches(*Init, Finder, Builder)); |
| 1903 | } |
| 1904 | |
| 1905 | /// Matches while statements. |
| 1906 | /// |
| 1907 | /// Given |
| 1908 | /// \code |
| 1909 | /// while (true) {} |
| 1910 | /// \endcode |
| 1911 | /// whileStmt() |
| 1912 | /// matches 'while (true) {}'. |
| 1913 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, WhileStmt> whileStmt; |
| 1914 | |
| 1915 | /// Matches do statements. |
| 1916 | /// |
| 1917 | /// Given |
| 1918 | /// \code |
| 1919 | /// do {} while (true); |
| 1920 | /// \endcode |
| 1921 | /// doStmt() |
| 1922 | /// matches 'do {} while(true)' |
| 1923 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, DoStmt> doStmt; |
| 1924 | |
| 1925 | /// Matches break statements. |
| 1926 | /// |
| 1927 | /// Given |
| 1928 | /// \code |
| 1929 | /// while (true) { break; } |
| 1930 | /// \endcode |
| 1931 | /// breakStmt() |
| 1932 | /// matches 'break' |
| 1933 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, BreakStmt> breakStmt; |
| 1934 | |
| 1935 | /// Matches continue statements. |
| 1936 | /// |
| 1937 | /// Given |
| 1938 | /// \code |
| 1939 | /// while (true) { continue; } |
| 1940 | /// \endcode |
| 1941 | /// continueStmt() |
| 1942 | /// matches 'continue' |
| 1943 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ContinueStmt> |
| 1944 | continueStmt; |
| 1945 | |
| 1946 | /// Matches return statements. |
| 1947 | /// |
| 1948 | /// Given |
| 1949 | /// \code |
| 1950 | /// return 1; |
| 1951 | /// \endcode |
| 1952 | /// returnStmt() |
| 1953 | /// matches 'return 1' |
| 1954 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ReturnStmt> returnStmt; |
| 1955 | |
| 1956 | /// Matches goto statements. |
| 1957 | /// |
| 1958 | /// Given |
| 1959 | /// \code |
| 1960 | /// goto FOO; |
| 1961 | /// FOO: bar(); |
| 1962 | /// \endcode |
| 1963 | /// gotoStmt() |
| 1964 | /// matches 'goto FOO' |
| 1965 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, GotoStmt> gotoStmt; |
| 1966 | |
| 1967 | /// Matches label statements. |
| 1968 | /// |
| 1969 | /// Given |
| 1970 | /// \code |
| 1971 | /// goto FOO; |
| 1972 | /// FOO: bar(); |
| 1973 | /// \endcode |
| 1974 | /// labelStmt() |
| 1975 | /// matches 'FOO:' |
| 1976 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, LabelStmt> labelStmt; |
| 1977 | |
| 1978 | /// Matches address of label statements (GNU extension). |
| 1979 | /// |
| 1980 | /// Given |
| 1981 | /// \code |
| 1982 | /// FOO: bar(); |
| 1983 | /// void *ptr = &&FOO; |
| 1984 | /// goto *bar; |
| 1985 | /// \endcode |
| 1986 | /// addrLabelExpr() |
| 1987 | /// matches '&&FOO' |
| 1988 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, AddrLabelExpr> |
| 1989 | addrLabelExpr; |
| 1990 | |
| 1991 | /// Matches switch statements. |
| 1992 | /// |
| 1993 | /// Given |
| 1994 | /// \code |
| 1995 | /// switch(a) { case 42: break; default: break; } |
| 1996 | /// \endcode |
| 1997 | /// switchStmt() |
| 1998 | /// matches 'switch(a)'. |
| 1999 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, SwitchStmt> switchStmt; |
| 2000 | |
| 2001 | /// Matches case and default statements inside switch statements. |
| 2002 | /// |
| 2003 | /// Given |
| 2004 | /// \code |
| 2005 | /// switch(a) { case 42: break; default: break; } |
| 2006 | /// \endcode |
| 2007 | /// switchCase() |
| 2008 | /// matches 'case 42:' and 'default:'. |
| 2009 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, SwitchCase> switchCase; |
| 2010 | |
| 2011 | /// Matches case statements inside switch statements. |
| 2012 | /// |
| 2013 | /// Given |
| 2014 | /// \code |
| 2015 | /// switch(a) { case 42: break; default: break; } |
| 2016 | /// \endcode |
| 2017 | /// caseStmt() |
| 2018 | /// matches 'case 42:'. |
| 2019 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CaseStmt> caseStmt; |
| 2020 | |
| 2021 | /// Matches default statements inside switch statements. |
| 2022 | /// |
| 2023 | /// Given |
| 2024 | /// \code |
| 2025 | /// switch(a) { case 42: break; default: break; } |
| 2026 | /// \endcode |
| 2027 | /// defaultStmt() |
| 2028 | /// matches 'default:'. |
| 2029 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, DefaultStmt> |
| 2030 | defaultStmt; |
| 2031 | |
| 2032 | /// Matches compound statements. |
| 2033 | /// |
| 2034 | /// Example matches '{}' and '{{}}' in 'for (;;) {{}}' |
| 2035 | /// \code |
| 2036 | /// for (;;) {{}} |
| 2037 | /// \endcode |
| 2038 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CompoundStmt> |
| 2039 | compoundStmt; |
| 2040 | |
| 2041 | /// Matches catch statements. |
| 2042 | /// |
| 2043 | /// \code |
| 2044 | /// try {} catch(int i) {} |
| 2045 | /// \endcode |
| 2046 | /// cxxCatchStmt() |
| 2047 | /// matches 'catch(int i)' |
| 2048 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXCatchStmt> |
| 2049 | cxxCatchStmt; |
| 2050 | |
| 2051 | /// Matches try statements. |
| 2052 | /// |
| 2053 | /// \code |
| 2054 | /// try {} catch(int i) {} |
| 2055 | /// \endcode |
| 2056 | /// cxxTryStmt() |
| 2057 | /// matches 'try {}' |
| 2058 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXTryStmt> cxxTryStmt; |
| 2059 | |
| 2060 | /// Matches throw expressions. |
| 2061 | /// |
| 2062 | /// \code |
| 2063 | /// try { throw 5; } catch(int i) {} |
| 2064 | /// \endcode |
| 2065 | /// cxxThrowExpr() |
| 2066 | /// matches 'throw 5' |
| 2067 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXThrowExpr> |
| 2068 | cxxThrowExpr; |
| 2069 | |
| 2070 | /// Matches null statements. |
| 2071 | /// |
| 2072 | /// \code |
| 2073 | /// foo();; |
| 2074 | /// \endcode |
| 2075 | /// nullStmt() |
| 2076 | /// matches the second ';' |
| 2077 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, NullStmt> nullStmt; |
| 2078 | |
| 2079 | /// Matches asm statements. |
| 2080 | /// |
| 2081 | /// \code |
| 2082 | /// int i = 100; |
| 2083 | /// __asm("mov al, 2"); |
| 2084 | /// \endcode |
| 2085 | /// asmStmt() |
| 2086 | /// matches '__asm("mov al, 2")' |
| 2087 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, AsmStmt> asmStmt; |
| 2088 | |
| 2089 | /// Matches bool literals. |
| 2090 | /// |
| 2091 | /// Example matches true |
| 2092 | /// \code |
| 2093 | /// true |
| 2094 | /// \endcode |
| 2095 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXBoolLiteralExpr> |
| 2096 | cxxBoolLiteral; |
| 2097 | |
| 2098 | /// Matches string literals (also matches wide string literals). |
| 2099 | /// |
| 2100 | /// Example matches "abcd", L"abcd" |
| 2101 | /// \code |
| 2102 | /// char *s = "abcd"; |
| 2103 | /// wchar_t *ws = L"abcd"; |
| 2104 | /// \endcode |
| 2105 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, StringLiteral> |
| 2106 | stringLiteral; |
| 2107 | |
| 2108 | /// Matches character literals (also matches wchar_t). |
| 2109 | /// |
| 2110 | /// Not matching Hex-encoded chars (e.g. 0x1234, which is a IntegerLiteral), |
| 2111 | /// though. |
| 2112 | /// |
| 2113 | /// Example matches 'a', L'a' |
| 2114 | /// \code |
| 2115 | /// char ch = 'a'; |
| 2116 | /// wchar_t chw = L'a'; |
| 2117 | /// \endcode |
| 2118 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CharacterLiteral> |
| 2119 | characterLiteral; |
| 2120 | |
| 2121 | /// Matches integer literals of all sizes / encodings, e.g. |
| 2122 | /// 1, 1L, 0x1 and 1U. |
| 2123 | /// |
| 2124 | /// Does not match character-encoded integers such as L'a'. |
| 2125 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, IntegerLiteral> |
| 2126 | integerLiteral; |
| 2127 | |
| 2128 | /// Matches float literals of all sizes / encodings, e.g. |
| 2129 | /// 1.0, 1.0f, 1.0L and 1e10. |
| 2130 | /// |
| 2131 | /// Does not match implicit conversions such as |
| 2132 | /// \code |
| 2133 | /// float a = 10; |
| 2134 | /// \endcode |
| 2135 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, FloatingLiteral> |
| 2136 | floatLiteral; |
| 2137 | |
| 2138 | /// Matches imaginary literals, which are based on integer and floating |
| 2139 | /// point literals e.g.: 1i, 1.0i |
| 2140 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ImaginaryLiteral> |
| 2141 | imaginaryLiteral; |
| 2142 | |
| 2143 | /// Matches user defined literal operator call. |
| 2144 | /// |
| 2145 | /// Example match: "foo"_suffix |
| 2146 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, UserDefinedLiteral> |
| 2147 | userDefinedLiteral; |
| 2148 | |
| 2149 | /// Matches compound (i.e. non-scalar) literals |
| 2150 | /// |
| 2151 | /// Example match: {1}, (1, 2) |
| 2152 | /// \code |
| 2153 | /// int array[4] = {1}; |
| 2154 | /// vector int myvec = (vector int)(1, 2); |
| 2155 | /// \endcode |
| 2156 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CompoundLiteralExpr> |
| 2157 | compoundLiteralExpr; |
| 2158 | |
| 2159 | /// Matches nullptr literal. |
| 2160 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXNullPtrLiteralExpr> |
| 2161 | cxxNullPtrLiteralExpr; |
| 2162 | |
| 2163 | /// Matches GNU __builtin_choose_expr. |
| 2164 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ChooseExpr> |
| 2165 | chooseExpr; |
| 2166 | |
| 2167 | /// Matches GNU __null expression. |
| 2168 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, GNUNullExpr> |
| 2169 | gnuNullExpr; |
| 2170 | |
| 2171 | /// Matches atomic builtins. |
| 2172 | /// Example matches __atomic_load_n(ptr, 1) |
| 2173 | /// \code |
| 2174 | /// void foo() { int *ptr; __atomic_load_n(ptr, 1); } |
| 2175 | /// \endcode |
| 2176 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, AtomicExpr> atomicExpr; |
| 2177 | |
| 2178 | /// Matches statement expression (GNU extension). |
| 2179 | /// |
| 2180 | /// Example match: ({ int X = 4; X; }) |
| 2181 | /// \code |
| 2182 | /// int C = ({ int X = 4; X; }); |
| 2183 | /// \endcode |
| 2184 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, StmtExpr> stmtExpr; |
| 2185 | |
| 2186 | /// Matches binary operator expressions. |
| 2187 | /// |
| 2188 | /// Example matches a || b |
| 2189 | /// \code |
| 2190 | /// !(a || b) |
| 2191 | /// \endcode |
| 2192 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, BinaryOperator> |
| 2193 | binaryOperator; |
| 2194 | |
| 2195 | /// Matches unary operator expressions. |
| 2196 | /// |
| 2197 | /// Example matches !a |
| 2198 | /// \code |
| 2199 | /// !a || b |
| 2200 | /// \endcode |
| 2201 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, UnaryOperator> |
| 2202 | unaryOperator; |
| 2203 | |
| 2204 | /// Matches conditional operator expressions. |
| 2205 | /// |
| 2206 | /// Example matches a ? b : c |
| 2207 | /// \code |
| 2208 | /// (a ? b : c) + 42 |
| 2209 | /// \endcode |
| 2210 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ConditionalOperator> |
| 2211 | conditionalOperator; |
| 2212 | |
| 2213 | /// Matches binary conditional operator expressions (GNU extension). |
| 2214 | /// |
| 2215 | /// Example matches a ?: b |
| 2216 | /// \code |
| 2217 | /// (a ?: b) + 42; |
| 2218 | /// \endcode |
| 2219 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 2220 | BinaryConditionalOperator> |
| 2221 | binaryConditionalOperator; |
| 2222 | |
| 2223 | /// Matches opaque value expressions. They are used as helpers |
| 2224 | /// to reference another expressions and can be met |
| 2225 | /// in BinaryConditionalOperators, for example. |
| 2226 | /// |
| 2227 | /// Example matches 'a' |
| 2228 | /// \code |
| 2229 | /// (a ?: c) + 42; |
| 2230 | /// \endcode |
| 2231 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, OpaqueValueExpr> |
| 2232 | opaqueValueExpr; |
| 2233 | |
| 2234 | /// Matches a C++ static_assert declaration. |
| 2235 | /// |
| 2236 | /// Example: |
| 2237 | /// staticAssertExpr() |
| 2238 | /// matches |
| 2239 | /// static_assert(sizeof(S) == sizeof(int)) |
| 2240 | /// in |
| 2241 | /// \code |
| 2242 | /// struct S { |
| 2243 | /// int x; |
| 2244 | /// }; |
| 2245 | /// static_assert(sizeof(S) == sizeof(int)); |
| 2246 | /// \endcode |
| 2247 | extern const internal::VariadicDynCastAllOfMatcher<Decl, StaticAssertDecl> |
| 2248 | staticAssertDecl; |
| 2249 | |
| 2250 | /// Matches a reinterpret_cast expression. |
| 2251 | /// |
| 2252 | /// Either the source expression or the destination type can be matched |
| 2253 | /// using has(), but hasDestinationType() is more specific and can be |
| 2254 | /// more readable. |
| 2255 | /// |
| 2256 | /// Example matches reinterpret_cast<char*>(&p) in |
| 2257 | /// \code |
| 2258 | /// void* p = reinterpret_cast<char*>(&p); |
| 2259 | /// \endcode |
| 2260 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXReinterpretCastExpr> |
| 2261 | cxxReinterpretCastExpr; |
| 2262 | |
| 2263 | /// Matches a C++ static_cast expression. |
| 2264 | /// |
| 2265 | /// \see hasDestinationType |
| 2266 | /// \see reinterpretCast |
| 2267 | /// |
| 2268 | /// Example: |
| 2269 | /// cxxStaticCastExpr() |
| 2270 | /// matches |
| 2271 | /// static_cast<long>(8) |
| 2272 | /// in |
| 2273 | /// \code |
| 2274 | /// long eight(static_cast<long>(8)); |
| 2275 | /// \endcode |
| 2276 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXStaticCastExpr> |
| 2277 | cxxStaticCastExpr; |
| 2278 | |
| 2279 | /// Matches a dynamic_cast expression. |
| 2280 | /// |
| 2281 | /// Example: |
| 2282 | /// cxxDynamicCastExpr() |
| 2283 | /// matches |
| 2284 | /// dynamic_cast<D*>(&b); |
| 2285 | /// in |
| 2286 | /// \code |
| 2287 | /// struct B { virtual ~B() {} }; struct D : B {}; |
| 2288 | /// B b; |
| 2289 | /// D* p = dynamic_cast<D*>(&b); |
| 2290 | /// \endcode |
| 2291 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXDynamicCastExpr> |
| 2292 | cxxDynamicCastExpr; |
| 2293 | |
| 2294 | /// Matches a const_cast expression. |
| 2295 | /// |
| 2296 | /// Example: Matches const_cast<int*>(&r) in |
| 2297 | /// \code |
| 2298 | /// int n = 42; |
| 2299 | /// const int &r(n); |
| 2300 | /// int* p = const_cast<int*>(&r); |
| 2301 | /// \endcode |
| 2302 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXConstCastExpr> |
| 2303 | cxxConstCastExpr; |
| 2304 | |
| 2305 | /// Matches a C-style cast expression. |
| 2306 | /// |
| 2307 | /// Example: Matches (int) 2.2f in |
| 2308 | /// \code |
| 2309 | /// int i = (int) 2.2f; |
| 2310 | /// \endcode |
| 2311 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CStyleCastExpr> |
| 2312 | cStyleCastExpr; |
| 2313 | |
| 2314 | /// Matches explicit cast expressions. |
| 2315 | /// |
| 2316 | /// Matches any cast expression written in user code, whether it be a |
| 2317 | /// C-style cast, a functional-style cast, or a keyword cast. |
| 2318 | /// |
| 2319 | /// Does not match implicit conversions. |
| 2320 | /// |
| 2321 | /// Note: the name "explicitCast" is chosen to match Clang's terminology, as |
| 2322 | /// Clang uses the term "cast" to apply to implicit conversions as well as to |
| 2323 | /// actual cast expressions. |
| 2324 | /// |
| 2325 | /// \see hasDestinationType. |
| 2326 | /// |
| 2327 | /// Example: matches all five of the casts in |
| 2328 | /// \code |
| 2329 | /// int((int)(reinterpret_cast<int>(static_cast<int>(const_cast<int>(42))))) |
| 2330 | /// \endcode |
| 2331 | /// but does not match the implicit conversion in |
| 2332 | /// \code |
| 2333 | /// long ell = 42; |
| 2334 | /// \endcode |
| 2335 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ExplicitCastExpr> |
| 2336 | explicitCastExpr; |
| 2337 | |
| 2338 | /// Matches the implicit cast nodes of Clang's AST. |
| 2339 | /// |
| 2340 | /// This matches many different places, including function call return value |
| 2341 | /// eliding, as well as any type conversions. |
| 2342 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, ImplicitCastExpr> |
| 2343 | implicitCastExpr; |
| 2344 | |
| 2345 | /// Matches any cast nodes of Clang's AST. |
| 2346 | /// |
| 2347 | /// Example: castExpr() matches each of the following: |
| 2348 | /// \code |
| 2349 | /// (int) 3; |
| 2350 | /// const_cast<Expr *>(SubExpr); |
| 2351 | /// char c = 0; |
| 2352 | /// \endcode |
| 2353 | /// but does not match |
| 2354 | /// \code |
| 2355 | /// int i = (0); |
| 2356 | /// int k = 0; |
| 2357 | /// \endcode |
| 2358 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CastExpr> castExpr; |
| 2359 | |
| 2360 | /// Matches functional cast expressions |
| 2361 | /// |
| 2362 | /// Example: Matches Foo(bar); |
| 2363 | /// \code |
| 2364 | /// Foo f = bar; |
| 2365 | /// Foo g = (Foo) bar; |
| 2366 | /// Foo h = Foo(bar); |
| 2367 | /// \endcode |
| 2368 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXFunctionalCastExpr> |
| 2369 | cxxFunctionalCastExpr; |
| 2370 | |
| 2371 | /// Matches functional cast expressions having N != 1 arguments |
| 2372 | /// |
| 2373 | /// Example: Matches Foo(bar, bar) |
| 2374 | /// \code |
| 2375 | /// Foo h = Foo(bar, bar); |
| 2376 | /// \endcode |
| 2377 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CXXTemporaryObjectExpr> |
| 2378 | cxxTemporaryObjectExpr; |
| 2379 | |
| 2380 | /// Matches predefined identifier expressions [C99 6.4.2.2]. |
| 2381 | /// |
| 2382 | /// Example: Matches __func__ |
| 2383 | /// \code |
| 2384 | /// printf("%s", __func__); |
| 2385 | /// \endcode |
| 2386 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, PredefinedExpr> |
| 2387 | predefinedExpr; |
| 2388 | |
| 2389 | /// Matches C99 designated initializer expressions [C99 6.7.8]. |
| 2390 | /// |
| 2391 | /// Example: Matches { [2].y = 1.0, [0].x = 1.0 } |
| 2392 | /// \code |
| 2393 | /// point ptarray[10] = { [2].y = 1.0, [0].x = 1.0 }; |
| 2394 | /// \endcode |
| 2395 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, DesignatedInitExpr> |
| 2396 | designatedInitExpr; |
| 2397 | |
| 2398 | /// Matches designated initializer expressions that contain |
| 2399 | /// a specific number of designators. |
| 2400 | /// |
| 2401 | /// Example: Given |
| 2402 | /// \code |
| 2403 | /// point ptarray[10] = { [2].y = 1.0, [0].x = 1.0 }; |
| 2404 | /// point ptarray2[10] = { [2].y = 1.0, [2].x = 0.0, [0].x = 1.0 }; |
| 2405 | /// \endcode |
| 2406 | /// designatorCountIs(2) |
| 2407 | /// matches '{ [2].y = 1.0, [0].x = 1.0 }', |
| 2408 | /// but not '{ [2].y = 1.0, [2].x = 0.0, [0].x = 1.0 }'. |
| 2409 | AST_MATCHER_P(DesignatedInitExpr, designatorCountIs, unsigned, N) { |
| 2410 | return Node.size() == N; |
| 2411 | } |
| 2412 | |
| 2413 | /// Matches \c QualTypes in the clang AST. |
| 2414 | extern const internal::VariadicAllOfMatcher<QualType> qualType; |
| 2415 | |
| 2416 | /// Matches \c Types in the clang AST. |
| 2417 | extern const internal::VariadicAllOfMatcher<Type> type; |
| 2418 | |
| 2419 | /// Matches \c TypeLocs in the clang AST. |
| 2420 | extern const internal::VariadicAllOfMatcher<TypeLoc> typeLoc; |
| 2421 | |
| 2422 | /// Matches if any of the given matchers matches. |
| 2423 | /// |
| 2424 | /// Unlike \c anyOf, \c eachOf will generate a match result for each |
| 2425 | /// matching submatcher. |
| 2426 | /// |
| 2427 | /// For example, in: |
| 2428 | /// \code |
| 2429 | /// class A { int a; int b; }; |
| 2430 | /// \endcode |
| 2431 | /// The matcher: |
| 2432 | /// \code |
| 2433 | /// cxxRecordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")), |
| 2434 | /// has(fieldDecl(hasName("b")).bind("v")))) |
| 2435 | /// \endcode |
| 2436 | /// will generate two results binding "v", the first of which binds |
| 2437 | /// the field declaration of \c a, the second the field declaration of |
| 2438 | /// \c b. |
| 2439 | /// |
| 2440 | /// Usable as: Any Matcher |
| 2441 | extern const internal::VariadicOperatorMatcherFunc< |
| 2442 | 2, std::numeric_limits<unsigned>::max()> |
| 2443 | eachOf; |
| 2444 | |
| 2445 | /// Matches if any of the given matchers matches. |
| 2446 | /// |
| 2447 | /// Usable as: Any Matcher |
| 2448 | extern const internal::VariadicOperatorMatcherFunc< |
| 2449 | 2, std::numeric_limits<unsigned>::max()> |
| 2450 | anyOf; |
| 2451 | |
| 2452 | /// Matches if all given matchers match. |
| 2453 | /// |
| 2454 | /// Usable as: Any Matcher |
| 2455 | extern const internal::VariadicOperatorMatcherFunc< |
| 2456 | 2, std::numeric_limits<unsigned>::max()> |
| 2457 | allOf; |
| 2458 | |
| 2459 | /// Matches sizeof (C99), alignof (C++11) and vec_step (OpenCL) |
| 2460 | /// |
| 2461 | /// Given |
| 2462 | /// \code |
| 2463 | /// Foo x = bar; |
| 2464 | /// int y = sizeof(x) + alignof(x); |
| 2465 | /// \endcode |
| 2466 | /// unaryExprOrTypeTraitExpr() |
| 2467 | /// matches \c sizeof(x) and \c alignof(x) |
| 2468 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, |
| 2469 | UnaryExprOrTypeTraitExpr> |
| 2470 | unaryExprOrTypeTraitExpr; |
| 2471 | |
| 2472 | /// Matches unary expressions that have a specific type of argument. |
| 2473 | /// |
| 2474 | /// Given |
| 2475 | /// \code |
| 2476 | /// int a, c; float b; int s = sizeof(a) + sizeof(b) + alignof(c); |
| 2477 | /// \endcode |
| 2478 | /// unaryExprOrTypeTraitExpr(hasArgumentOfType(asString("int")) |
| 2479 | /// matches \c sizeof(a) and \c alignof(c) |
| 2480 | AST_MATCHER_P(UnaryExprOrTypeTraitExpr, hasArgumentOfType, |
| 2481 | internal::Matcher<QualType>, InnerMatcher) { |
| 2482 | const QualType ArgumentType = Node.getTypeOfArgument(); |
| 2483 | return InnerMatcher.matches(ArgumentType, Finder, Builder); |
| 2484 | } |
| 2485 | |
| 2486 | /// Matches unary expressions of a certain kind. |
| 2487 | /// |
| 2488 | /// Given |
| 2489 | /// \code |
| 2490 | /// int x; |
| 2491 | /// int s = sizeof(x) + alignof(x) |
| 2492 | /// \endcode |
| 2493 | /// unaryExprOrTypeTraitExpr(ofKind(UETT_SizeOf)) |
| 2494 | /// matches \c sizeof(x) |
| 2495 | /// |
| 2496 | /// If the matcher is use from clang-query, UnaryExprOrTypeTrait parameter |
| 2497 | /// should be passed as a quoted string. e.g., ofKind("UETT_SizeOf"). |
| 2498 | AST_MATCHER_P(UnaryExprOrTypeTraitExpr, ofKind, UnaryExprOrTypeTrait, Kind) { |
| 2499 | return Node.getKind() == Kind; |
| 2500 | } |
| 2501 | |
| 2502 | /// Same as unaryExprOrTypeTraitExpr, but only matching |
| 2503 | /// alignof. |
| 2504 | inline internal::Matcher<Stmt> alignOfExpr( |
| 2505 | const internal::Matcher<UnaryExprOrTypeTraitExpr> &InnerMatcher) { |
| 2506 | return stmt(unaryExprOrTypeTraitExpr( |
| 2507 | allOf(anyOf(ofKind(UETT_AlignOf), ofKind(UETT_PreferredAlignOf)), |
| 2508 | InnerMatcher))); |
| 2509 | } |
| 2510 | |
| 2511 | /// Same as unaryExprOrTypeTraitExpr, but only matching |
| 2512 | /// sizeof. |
| 2513 | inline internal::Matcher<Stmt> sizeOfExpr( |
| 2514 | const internal::Matcher<UnaryExprOrTypeTraitExpr> &InnerMatcher) { |
| 2515 | return stmt(unaryExprOrTypeTraitExpr( |
| 2516 | allOf(ofKind(UETT_SizeOf), InnerMatcher))); |
| 2517 | } |
| 2518 | |
| 2519 | /// Matches NamedDecl nodes that have the specified name. |
| 2520 | /// |
| 2521 | /// Supports specifying enclosing namespaces or classes by prefixing the name |
| 2522 | /// with '<enclosing>::'. |
| 2523 | /// Does not match typedefs of an underlying type with the given name. |
| 2524 | /// |
| 2525 | /// Example matches X (Name == "X") |
| 2526 | /// \code |
| 2527 | /// class X; |
| 2528 | /// \endcode |
| 2529 | /// |
| 2530 | /// Example matches X (Name is one of "::a::b::X", "a::b::X", "b::X", "X") |
| 2531 | /// \code |
| 2532 | /// namespace a { namespace b { class X; } } |
| 2533 | /// \endcode |
| 2534 | inline internal::Matcher<NamedDecl> hasName(const std::string &Name) { |
| 2535 | return internal::Matcher<NamedDecl>(new internal::HasNameMatcher({Name})); |
| 2536 | } |
| 2537 | |
| 2538 | /// Matches NamedDecl nodes that have any of the specified names. |
| 2539 | /// |
| 2540 | /// This matcher is only provided as a performance optimization of hasName. |
| 2541 | /// \code |
| 2542 | /// hasAnyName(a, b, c) |
| 2543 | /// \endcode |
| 2544 | /// is equivalent to, but faster than |
| 2545 | /// \code |
| 2546 | /// anyOf(hasName(a), hasName(b), hasName(c)) |
| 2547 | /// \endcode |
| 2548 | extern const internal::VariadicFunction<internal::Matcher<NamedDecl>, StringRef, |
| 2549 | internal::hasAnyNameFunc> |
| 2550 | hasAnyName; |
| 2551 | |
| 2552 | /// Matches NamedDecl nodes whose fully qualified names contain |
| 2553 | /// a substring matched by the given RegExp. |
| 2554 | /// |
| 2555 | /// Supports specifying enclosing namespaces or classes by |
| 2556 | /// prefixing the name with '<enclosing>::'. Does not match typedefs |
| 2557 | /// of an underlying type with the given name. |
| 2558 | /// |
| 2559 | /// Example matches X (regexp == "::X") |
| 2560 | /// \code |
| 2561 | /// class X; |
| 2562 | /// \endcode |
| 2563 | /// |
| 2564 | /// Example matches X (regexp is one of "::X", "^foo::.*X", among others) |
| 2565 | /// \code |
| 2566 | /// namespace foo { namespace bar { class X; } } |
| 2567 | /// \endcode |
| 2568 | AST_MATCHER_P(NamedDecl, matchesName, std::string, RegExp) { |
| 2569 | assert(!RegExp.empty()); |
| 2570 | std::string FullNameString = "::" + Node.getQualifiedNameAsString(); |
| 2571 | llvm::Regex RE(RegExp); |
| 2572 | return RE.match(FullNameString); |
| 2573 | } |
| 2574 | |
| 2575 | /// Matches overloaded operator names. |
| 2576 | /// |
| 2577 | /// Matches overloaded operator names specified in strings without the |
| 2578 | /// "operator" prefix: e.g. "<<". |
| 2579 | /// |
| 2580 | /// Given: |
| 2581 | /// \code |
| 2582 | /// class A { int operator*(); }; |
| 2583 | /// const A &operator<<(const A &a, const A &b); |
| 2584 | /// A a; |
| 2585 | /// a << a; // <-- This matches |
| 2586 | /// \endcode |
| 2587 | /// |
| 2588 | /// \c cxxOperatorCallExpr(hasOverloadedOperatorName("<<"))) matches the |
| 2589 | /// specified line and |
| 2590 | /// \c cxxRecordDecl(hasMethod(hasOverloadedOperatorName("*"))) |
| 2591 | /// matches the declaration of \c A. |
| 2592 | /// |
| 2593 | /// Usable as: Matcher<CXXOperatorCallExpr>, Matcher<FunctionDecl> |
| 2594 | inline internal::PolymorphicMatcherWithParam1< |
| 2595 | internal::HasOverloadedOperatorNameMatcher, StringRef, |
| 2596 | AST_POLYMORPHIC_SUPPORTED_TYPES(CXXOperatorCallExpr, FunctionDecl)> |
| 2597 | hasOverloadedOperatorName(StringRef Name) { |
| 2598 | return internal::PolymorphicMatcherWithParam1< |
| 2599 | internal::HasOverloadedOperatorNameMatcher, StringRef, |
| 2600 | AST_POLYMORPHIC_SUPPORTED_TYPES(CXXOperatorCallExpr, FunctionDecl)>(Name); |
| 2601 | } |
| 2602 | |
| 2603 | /// Matches C++ classes that are directly or indirectly derived from |
| 2604 | /// a class matching \c Base. |
| 2605 | /// |
| 2606 | /// Note that a class is not considered to be derived from itself. |
| 2607 | /// |
| 2608 | /// Example matches Y, Z, C (Base == hasName("X")) |
| 2609 | /// \code |
| 2610 | /// class X; |
| 2611 | /// class Y : public X {}; // directly derived |
| 2612 | /// class Z : public Y {}; // indirectly derived |
| 2613 | /// typedef X A; |
| 2614 | /// typedef A B; |
| 2615 | /// class C : public B {}; // derived from a typedef of X |
| 2616 | /// \endcode |
| 2617 | /// |
| 2618 | /// In the following example, Bar matches isDerivedFrom(hasName("X")): |
| 2619 | /// \code |
| 2620 | /// class Foo; |
| 2621 | /// typedef Foo X; |
| 2622 | /// class Bar : public Foo {}; // derived from a type that X is a typedef of |
| 2623 | /// \endcode |
| 2624 | AST_MATCHER_P(CXXRecordDecl, isDerivedFrom, |
| 2625 | internal::Matcher<NamedDecl>, Base) { |
| 2626 | return Finder->classIsDerivedFrom(&Node, Base, Builder); |
| 2627 | } |
| 2628 | |
| 2629 | /// Overloaded method as shortcut for \c isDerivedFrom(hasName(...)). |
| 2630 | AST_MATCHER_P_OVERLOAD(CXXRecordDecl, isDerivedFrom, std::string, BaseName, 1) { |
| 2631 | assert(!BaseName.empty()); |
| 2632 | return isDerivedFrom(hasName(BaseName)).matches(Node, Finder, Builder); |
| 2633 | } |
| 2634 | |
| 2635 | /// Similar to \c isDerivedFrom(), but also matches classes that directly |
| 2636 | /// match \c Base. |
| 2637 | AST_MATCHER_P_OVERLOAD(CXXRecordDecl, isSameOrDerivedFrom, |
| 2638 | internal::Matcher<NamedDecl>, Base, 0) { |
| 2639 | return Matcher<CXXRecordDecl>(anyOf(Base, isDerivedFrom(Base))) |
| 2640 | .matches(Node, Finder, Builder); |
| 2641 | } |
| 2642 | |
| 2643 | /// Overloaded method as shortcut for |
| 2644 | /// \c isSameOrDerivedFrom(hasName(...)). |
| 2645 | AST_MATCHER_P_OVERLOAD(CXXRecordDecl, isSameOrDerivedFrom, std::string, |
| 2646 | BaseName, 1) { |
| 2647 | assert(!BaseName.empty()); |
| 2648 | return isSameOrDerivedFrom(hasName(BaseName)).matches(Node, Finder, Builder); |
| 2649 | } |
| 2650 | |
| 2651 | /// Matches the first method of a class or struct that satisfies \c |
| 2652 | /// InnerMatcher. |
| 2653 | /// |
| 2654 | /// Given: |
| 2655 | /// \code |
| 2656 | /// class A { void func(); }; |
| 2657 | /// class B { void member(); }; |
| 2658 | /// \endcode |
| 2659 | /// |
| 2660 | /// \c cxxRecordDecl(hasMethod(hasName("func"))) matches the declaration of |
| 2661 | /// \c A but not \c B. |
| 2662 | AST_MATCHER_P(CXXRecordDecl, hasMethod, internal::Matcher<CXXMethodDecl>, |
| 2663 | InnerMatcher) { |
| 2664 | return matchesFirstInPointerRange(InnerMatcher, Node.method_begin(), |
| 2665 | Node.method_end(), Finder, Builder); |
| 2666 | } |
| 2667 | |
| 2668 | /// Matches the generated class of lambda expressions. |
| 2669 | /// |
| 2670 | /// Given: |
| 2671 | /// \code |
| 2672 | /// auto x = []{}; |
| 2673 | /// \endcode |
| 2674 | /// |
| 2675 | /// \c cxxRecordDecl(isLambda()) matches the implicit class declaration of |
| 2676 | /// \c decltype(x) |
| 2677 | AST_MATCHER(CXXRecordDecl, isLambda) { |
| 2678 | return Node.isLambda(); |
| 2679 | } |
| 2680 | |
| 2681 | /// Matches AST nodes that have child AST nodes that match the |
| 2682 | /// provided matcher. |
| 2683 | /// |
| 2684 | /// Example matches X, Y |
| 2685 | /// (matcher = cxxRecordDecl(has(cxxRecordDecl(hasName("X"))) |
| 2686 | /// \code |
| 2687 | /// class X {}; // Matches X, because X::X is a class of name X inside X. |
| 2688 | /// class Y { class X {}; }; |
| 2689 | /// class Z { class Y { class X {}; }; }; // Does not match Z. |
| 2690 | /// \endcode |
| 2691 | /// |
| 2692 | /// ChildT must be an AST base type. |
| 2693 | /// |
| 2694 | /// Usable as: Any Matcher |
| 2695 | /// Note that has is direct matcher, so it also matches things like implicit |
| 2696 | /// casts and paren casts. If you are matching with expr then you should |
| 2697 | /// probably consider using ignoringParenImpCasts like: |
| 2698 | /// has(ignoringParenImpCasts(expr())). |
| 2699 | extern const internal::ArgumentAdaptingMatcherFunc<internal::HasMatcher> has; |
| 2700 | |
| 2701 | /// Matches AST nodes that have descendant AST nodes that match the |
| 2702 | /// provided matcher. |
| 2703 | /// |
| 2704 | /// Example matches X, Y, Z |
| 2705 | /// (matcher = cxxRecordDecl(hasDescendant(cxxRecordDecl(hasName("X"))))) |
| 2706 | /// \code |
| 2707 | /// class X {}; // Matches X, because X::X is a class of name X inside X. |
| 2708 | /// class Y { class X {}; }; |
| 2709 | /// class Z { class Y { class X {}; }; }; |
| 2710 | /// \endcode |
| 2711 | /// |
| 2712 | /// DescendantT must be an AST base type. |
| 2713 | /// |
| 2714 | /// Usable as: Any Matcher |
| 2715 | extern const internal::ArgumentAdaptingMatcherFunc< |
| 2716 | internal::HasDescendantMatcher> |
| 2717 | hasDescendant; |
| 2718 | |
| 2719 | /// Matches AST nodes that have child AST nodes that match the |
| 2720 | /// provided matcher. |
| 2721 | /// |
| 2722 | /// Example matches X, Y, Y::X, Z::Y, Z::Y::X |
| 2723 | /// (matcher = cxxRecordDecl(forEach(cxxRecordDecl(hasName("X"))) |
| 2724 | /// \code |
| 2725 | /// class X {}; |
| 2726 | /// class Y { class X {}; }; // Matches Y, because Y::X is a class of name X |
| 2727 | /// // inside Y. |
| 2728 | /// class Z { class Y { class X {}; }; }; // Does not match Z. |
| 2729 | /// \endcode |
| 2730 | /// |
| 2731 | /// ChildT must be an AST base type. |
| 2732 | /// |
| 2733 | /// As opposed to 'has', 'forEach' will cause a match for each result that |
| 2734 | /// matches instead of only on the first one. |
| 2735 | /// |
| 2736 | /// Usable as: Any Matcher |
| 2737 | extern const internal::ArgumentAdaptingMatcherFunc<internal::ForEachMatcher> |
| 2738 | forEach; |
| 2739 | |
| 2740 | /// Matches AST nodes that have descendant AST nodes that match the |
| 2741 | /// provided matcher. |
| 2742 | /// |
| 2743 | /// Example matches X, A, A::X, B, B::C, B::C::X |
| 2744 | /// (matcher = cxxRecordDecl(forEachDescendant(cxxRecordDecl(hasName("X"))))) |
| 2745 | /// \code |
| 2746 | /// class X {}; |
| 2747 | /// class A { class X {}; }; // Matches A, because A::X is a class of name |
| 2748 | /// // X inside A. |
| 2749 | /// class B { class C { class X {}; }; }; |
| 2750 | /// \endcode |
| 2751 | /// |
| 2752 | /// DescendantT must be an AST base type. |
| 2753 | /// |
| 2754 | /// As opposed to 'hasDescendant', 'forEachDescendant' will cause a match for |
| 2755 | /// each result that matches instead of only on the first one. |
| 2756 | /// |
| 2757 | /// Note: Recursively combined ForEachDescendant can cause many matches: |
| 2758 | /// cxxRecordDecl(forEachDescendant(cxxRecordDecl( |
| 2759 | /// forEachDescendant(cxxRecordDecl()) |
| 2760 | /// ))) |
| 2761 | /// will match 10 times (plus injected class name matches) on: |
| 2762 | /// \code |
| 2763 | /// class A { class B { class C { class D { class E {}; }; }; }; }; |
| 2764 | /// \endcode |
| 2765 | /// |
| 2766 | /// Usable as: Any Matcher |
| 2767 | extern const internal::ArgumentAdaptingMatcherFunc< |
| 2768 | internal::ForEachDescendantMatcher> |
| 2769 | forEachDescendant; |
| 2770 | |
| 2771 | /// Matches if the node or any descendant matches. |
| 2772 | /// |
| 2773 | /// Generates results for each match. |
| 2774 | /// |
| 2775 | /// For example, in: |
| 2776 | /// \code |
| 2777 | /// class A { class B {}; class C {}; }; |
| 2778 | /// \endcode |
| 2779 | /// The matcher: |
| 2780 | /// \code |
| 2781 | /// cxxRecordDecl(hasName("::A"), |
| 2782 | /// findAll(cxxRecordDecl(isDefinition()).bind("m"))) |
| 2783 | /// \endcode |
| 2784 | /// will generate results for \c A, \c B and \c C. |
| 2785 | /// |
| 2786 | /// Usable as: Any Matcher |
| 2787 | template <typename T> |
| 2788 | internal::Matcher<T> findAll(const internal::Matcher<T> &Matcher) { |
| 2789 | return eachOf(Matcher, forEachDescendant(Matcher)); |
| 2790 | } |
| 2791 | |
| 2792 | /// Matches AST nodes that have a parent that matches the provided |
| 2793 | /// matcher. |
| 2794 | /// |
| 2795 | /// Given |
| 2796 | /// \code |
| 2797 | /// void f() { for (;;) { int x = 42; if (true) { int x = 43; } } } |
| 2798 | /// \endcode |
| 2799 | /// \c compoundStmt(hasParent(ifStmt())) matches "{ int x = 43; }". |
| 2800 | /// |
| 2801 | /// Usable as: Any Matcher |
| 2802 | extern const internal::ArgumentAdaptingMatcherFunc< |
| 2803 | internal::HasParentMatcher, |
| 2804 | internal::TypeList<Decl, NestedNameSpecifierLoc, Stmt, TypeLoc>, |
| 2805 | internal::TypeList<Decl, NestedNameSpecifierLoc, Stmt, TypeLoc>> |
| 2806 | hasParent; |
| 2807 | |
| 2808 | /// Matches AST nodes that have an ancestor that matches the provided |
| 2809 | /// matcher. |
| 2810 | /// |
| 2811 | /// Given |
| 2812 | /// \code |
| 2813 | /// void f() { if (true) { int x = 42; } } |
| 2814 | /// void g() { for (;;) { int x = 43; } } |
| 2815 | /// \endcode |
| 2816 | /// \c expr(integerLiteral(hasAncestor(ifStmt()))) matches \c 42, but not 43. |
| 2817 | /// |
| 2818 | /// Usable as: Any Matcher |
| 2819 | extern const internal::ArgumentAdaptingMatcherFunc< |
| 2820 | internal::HasAncestorMatcher, |
| 2821 | internal::TypeList<Decl, NestedNameSpecifierLoc, Stmt, TypeLoc>, |
| 2822 | internal::TypeList<Decl, NestedNameSpecifierLoc, Stmt, TypeLoc>> |
| 2823 | hasAncestor; |
| 2824 | |
| 2825 | /// Matches if the provided matcher does not match. |
| 2826 | /// |
| 2827 | /// Example matches Y (matcher = cxxRecordDecl(unless(hasName("X")))) |
| 2828 | /// \code |
| 2829 | /// class X {}; |
| 2830 | /// class Y {}; |
| 2831 | /// \endcode |
| 2832 | /// |
| 2833 | /// Usable as: Any Matcher |
| 2834 | extern const internal::VariadicOperatorMatcherFunc<1, 1> unless; |
| 2835 | |
| 2836 | /// Matches a node if the declaration associated with that node |
| 2837 | /// matches the given matcher. |
| 2838 | /// |
| 2839 | /// The associated declaration is: |
| 2840 | /// - for type nodes, the declaration of the underlying type |
| 2841 | /// - for CallExpr, the declaration of the callee |
| 2842 | /// - for MemberExpr, the declaration of the referenced member |
| 2843 | /// - for CXXConstructExpr, the declaration of the constructor |
| 2844 | /// - for CXXNewExpr, the declaration of the operator new |
| 2845 | /// - for ObjCIvarExpr, the declaration of the ivar |
| 2846 | /// |
| 2847 | /// For type nodes, hasDeclaration will generally match the declaration of the |
| 2848 | /// sugared type. Given |
| 2849 | /// \code |
| 2850 | /// class X {}; |
| 2851 | /// typedef X Y; |
| 2852 | /// Y y; |
| 2853 | /// \endcode |
| 2854 | /// in varDecl(hasType(hasDeclaration(decl()))) the decl will match the |
| 2855 | /// typedefDecl. A common use case is to match the underlying, desugared type. |
| 2856 | /// This can be achieved by using the hasUnqualifiedDesugaredType matcher: |
| 2857 | /// \code |
| 2858 | /// varDecl(hasType(hasUnqualifiedDesugaredType( |
| 2859 | /// recordType(hasDeclaration(decl()))))) |
| 2860 | /// \endcode |
| 2861 | /// In this matcher, the decl will match the CXXRecordDecl of class X. |
| 2862 | /// |
| 2863 | /// Usable as: Matcher<AddrLabelExpr>, Matcher<CallExpr>, |
| 2864 | /// Matcher<CXXConstructExpr>, Matcher<CXXNewExpr>, Matcher<DeclRefExpr>, |
| 2865 | /// Matcher<EnumType>, Matcher<InjectedClassNameType>, Matcher<LabelStmt>, |
| 2866 | /// Matcher<MemberExpr>, Matcher<QualType>, Matcher<RecordType>, |
| 2867 | /// Matcher<TagType>, Matcher<TemplateSpecializationType>, |
| 2868 | /// Matcher<TemplateTypeParmType>, Matcher<TypedefType>, |
| 2869 | /// Matcher<UnresolvedUsingType> |
| 2870 | inline internal::PolymorphicMatcherWithParam1< |
| 2871 | internal::HasDeclarationMatcher, internal::Matcher<Decl>, |
| 2872 | void(internal::HasDeclarationSupportedTypes)> |
| 2873 | hasDeclaration(const internal::Matcher<Decl> &InnerMatcher) { |
| 2874 | return internal::PolymorphicMatcherWithParam1< |
| 2875 | internal::HasDeclarationMatcher, internal::Matcher<Decl>, |
| 2876 | void(internal::HasDeclarationSupportedTypes)>(InnerMatcher); |
| 2877 | } |
| 2878 | |
| 2879 | /// Matches a \c NamedDecl whose underlying declaration matches the given |
| 2880 | /// matcher. |
| 2881 | /// |
| 2882 | /// Given |
| 2883 | /// \code |
| 2884 | /// namespace N { template<class T> void f(T t); } |
| 2885 | /// template <class T> void g() { using N::f; f(T()); } |
| 2886 | /// \endcode |
| 2887 | /// \c unresolvedLookupExpr(hasAnyDeclaration( |
| 2888 | /// namedDecl(hasUnderlyingDecl(hasName("::N::f"))))) |
| 2889 | /// matches the use of \c f in \c g() . |
| 2890 | AST_MATCHER_P(NamedDecl, hasUnderlyingDecl, internal::Matcher<NamedDecl>, |
| 2891 | InnerMatcher) { |
| 2892 | const NamedDecl *UnderlyingDecl = Node.getUnderlyingDecl(); |
| 2893 | |
| 2894 | return UnderlyingDecl != nullptr && |
| 2895 | InnerMatcher.matches(*UnderlyingDecl, Finder, Builder); |
| 2896 | } |
| 2897 | |
| 2898 | /// Matches on the implicit object argument of a member call expression, after |
| 2899 | /// stripping off any parentheses or implicit casts. |
| 2900 | /// |
| 2901 | /// Given |
| 2902 | /// \code |
| 2903 | /// class Y { public: void m(); }; |
| 2904 | /// Y g(); |
| 2905 | /// class X : public Y {}; |
| 2906 | /// void z(Y y, X x) { y.m(); (g()).m(); x.m(); } |
| 2907 | /// \endcode |
| 2908 | /// cxxMemberCallExpr(on(hasType(cxxRecordDecl(hasName("Y"))))) |
| 2909 | /// matches `y.m()` and `(g()).m()`. |
| 2910 | /// cxxMemberCallExpr(on(hasType(cxxRecordDecl(hasName("X"))))) |
| 2911 | /// matches `x.m()`. |
| 2912 | /// cxxMemberCallExpr(on(callExpr())) |
| 2913 | /// matches `(g()).m()`. |
| 2914 | /// |
| 2915 | /// FIXME: Overload to allow directly matching types? |
| 2916 | AST_MATCHER_P(CXXMemberCallExpr, on, internal::Matcher<Expr>, |
| 2917 | InnerMatcher) { |
| 2918 | const Expr *ExprNode = Node.getImplicitObjectArgument() |
| 2919 | ->IgnoreParenImpCasts(); |
| 2920 | return (ExprNode != nullptr && |
| 2921 | InnerMatcher.matches(*ExprNode, Finder, Builder)); |
| 2922 | } |
| 2923 | |
| 2924 | |
| 2925 | /// Matches on the receiver of an ObjectiveC Message expression. |
| 2926 | /// |
| 2927 | /// Example |
| 2928 | /// matcher = objCMessageExpr(hasReceiverType(asString("UIWebView *"))); |
| 2929 | /// matches the [webView ...] message invocation. |
| 2930 | /// \code |
| 2931 | /// NSString *webViewJavaScript = ... |
| 2932 | /// UIWebView *webView = ... |
| 2933 | /// [webView stringByEvaluatingJavaScriptFromString:webViewJavascript]; |
| 2934 | /// \endcode |
| 2935 | AST_MATCHER_P(ObjCMessageExpr, hasReceiverType, internal::Matcher<QualType>, |
| 2936 | InnerMatcher) { |
| 2937 | const QualType TypeDecl = Node.getReceiverType(); |
| 2938 | return InnerMatcher.matches(TypeDecl, Finder, Builder); |
| 2939 | } |
| 2940 | |
| 2941 | /// Returns true when the Objective-C message is sent to an instance. |
| 2942 | /// |
| 2943 | /// Example |
| 2944 | /// matcher = objcMessagaeExpr(isInstanceMessage()) |
| 2945 | /// matches |
| 2946 | /// \code |
| 2947 | /// NSString *x = @"hello"; |
| 2948 | /// [x containsString:@"h"]; |
| 2949 | /// \endcode |
| 2950 | /// but not |
| 2951 | /// \code |
| 2952 | /// [NSString stringWithFormat:@"format"]; |
| 2953 | /// \endcode |
| 2954 | AST_MATCHER(ObjCMessageExpr, isInstanceMessage) { |
| 2955 | return Node.isInstanceMessage(); |
| 2956 | } |
| 2957 | |
| 2958 | /// Matches if the Objective-C message is sent to an instance, |
| 2959 | /// and the inner matcher matches on that instance. |
| 2960 | /// |
| 2961 | /// For example the method call in |
| 2962 | /// \code |
| 2963 | /// NSString *x = @"hello"; |
| 2964 | /// [x containsString:@"h"]; |
| 2965 | /// \endcode |
| 2966 | /// is matched by |
| 2967 | /// objcMessageExpr(hasReceiver(declRefExpr(to(varDecl(hasName("x")))))) |
| 2968 | AST_MATCHER_P(ObjCMessageExpr, hasReceiver, internal::Matcher<Expr>, |
| 2969 | InnerMatcher) { |
| 2970 | const Expr *ReceiverNode = Node.getInstanceReceiver(); |
| 2971 | return (ReceiverNode != nullptr && |
| 2972 | InnerMatcher.matches(*ReceiverNode->IgnoreParenImpCasts(), Finder, |
| 2973 | Builder)); |
| 2974 | } |
| 2975 | |
| 2976 | /// Matches when BaseName == Selector.getAsString() |
| 2977 | /// |
| 2978 | /// matcher = objCMessageExpr(hasSelector("loadHTMLString:baseURL:")); |
| 2979 | /// matches the outer message expr in the code below, but NOT the message |
| 2980 | /// invocation for self.bodyView. |
| 2981 | /// \code |
| 2982 | /// [self.bodyView loadHTMLString:html baseURL:NULL]; |
| 2983 | /// \endcode |
| 2984 | AST_MATCHER_P(ObjCMessageExpr, hasSelector, std::string, BaseName) { |
| 2985 | Selector Sel = Node.getSelector(); |
| 2986 | return BaseName.compare(Sel.getAsString()) == 0; |
| 2987 | } |
| 2988 | |
| 2989 | |
| 2990 | /// Matches when at least one of the supplied string equals to the |
| 2991 | /// Selector.getAsString() |
| 2992 | /// |
| 2993 | /// matcher = objCMessageExpr(hasSelector("methodA:", "methodB:")); |
| 2994 | /// matches both of the expressions below: |
| 2995 | /// \code |
| 2996 | /// [myObj methodA:argA]; |
| 2997 | /// [myObj methodB:argB]; |
| 2998 | /// \endcode |
| 2999 | extern const internal::VariadicFunction<internal::Matcher<ObjCMessageExpr>, |
| 3000 | StringRef, |
| 3001 | internal::hasAnySelectorFunc> |
| 3002 | hasAnySelector; |
| 3003 | |
| 3004 | /// Matches ObjC selectors whose name contains |
| 3005 | /// a substring matched by the given RegExp. |
| 3006 | /// matcher = objCMessageExpr(matchesSelector("loadHTMLString\:baseURL?")); |
| 3007 | /// matches the outer message expr in the code below, but NOT the message |
| 3008 | /// invocation for self.bodyView. |
| 3009 | /// \code |
| 3010 | /// [self.bodyView loadHTMLString:html baseURL:NULL]; |
| 3011 | /// \endcode |
| 3012 | AST_MATCHER_P(ObjCMessageExpr, matchesSelector, std::string, RegExp) { |
| 3013 | assert(!RegExp.empty()); |
| 3014 | std::string SelectorString = Node.getSelector().getAsString(); |
| 3015 | llvm::Regex RE(RegExp); |
| 3016 | return RE.match(SelectorString); |
| 3017 | } |
| 3018 | |
| 3019 | /// Matches when the selector is the empty selector |
| 3020 | /// |
| 3021 | /// Matches only when the selector of the objCMessageExpr is NULL. This may |
| 3022 | /// represent an error condition in the tree! |
| 3023 | AST_MATCHER(ObjCMessageExpr, hasNullSelector) { |
| 3024 | return Node.getSelector().isNull(); |
| 3025 | } |
| 3026 | |
| 3027 | /// Matches when the selector is a Unary Selector |
| 3028 | /// |
| 3029 | /// matcher = objCMessageExpr(matchesSelector(hasUnarySelector()); |
| 3030 | /// matches self.bodyView in the code below, but NOT the outer message |
| 3031 | /// invocation of "loadHTMLString:baseURL:". |
| 3032 | /// \code |
| 3033 | /// [self.bodyView loadHTMLString:html baseURL:NULL]; |
| 3034 | /// \endcode |
| 3035 | AST_MATCHER(ObjCMessageExpr, hasUnarySelector) { |
| 3036 | return Node.getSelector().isUnarySelector(); |
| 3037 | } |
| 3038 | |
| 3039 | /// Matches when the selector is a keyword selector |
| 3040 | /// |
| 3041 | /// objCMessageExpr(hasKeywordSelector()) matches the generated setFrame |
| 3042 | /// message expression in |
| 3043 | /// |
| 3044 | /// \code |
| 3045 | /// UIWebView *webView = ...; |
| 3046 | /// CGRect bodyFrame = webView.frame; |
| 3047 | /// bodyFrame.size.height = self.bodyContentHeight; |
| 3048 | /// webView.frame = bodyFrame; |
| 3049 | /// // ^---- matches here |
| 3050 | /// \endcode |
| 3051 | AST_MATCHER(ObjCMessageExpr, hasKeywordSelector) { |
| 3052 | return Node.getSelector().isKeywordSelector(); |
| 3053 | } |
| 3054 | |
| 3055 | /// Matches when the selector has the specified number of arguments |
| 3056 | /// |
| 3057 | /// matcher = objCMessageExpr(numSelectorArgs(0)); |
| 3058 | /// matches self.bodyView in the code below |
| 3059 | /// |
| 3060 | /// matcher = objCMessageExpr(numSelectorArgs(2)); |
| 3061 | /// matches the invocation of "loadHTMLString:baseURL:" but not that |
| 3062 | /// of self.bodyView |
| 3063 | /// \code |
| 3064 | /// [self.bodyView loadHTMLString:html baseURL:NULL]; |
| 3065 | /// \endcode |
| 3066 | AST_MATCHER_P(ObjCMessageExpr, numSelectorArgs, unsigned, N) { |
| 3067 | return Node.getSelector().getNumArgs() == N; |
| 3068 | } |
| 3069 | |
| 3070 | /// Matches if the call expression's callee expression matches. |
| 3071 | /// |
| 3072 | /// Given |
| 3073 | /// \code |
| 3074 | /// class Y { void x() { this->x(); x(); Y y; y.x(); } }; |
| 3075 | /// void f() { f(); } |
| 3076 | /// \endcode |
| 3077 | /// callExpr(callee(expr())) |
| 3078 | /// matches this->x(), x(), y.x(), f() |
| 3079 | /// with callee(...) |
| 3080 | /// matching this->x, x, y.x, f respectively |
| 3081 | /// |
| 3082 | /// Note: Callee cannot take the more general internal::Matcher<Expr> |
| 3083 | /// because this introduces ambiguous overloads with calls to Callee taking a |
| 3084 | /// internal::Matcher<Decl>, as the matcher hierarchy is purely |
| 3085 | /// implemented in terms of implicit casts. |
| 3086 | AST_MATCHER_P(CallExpr, callee, internal::Matcher<Stmt>, |
| 3087 | InnerMatcher) { |
| 3088 | const Expr *ExprNode = Node.getCallee(); |
| 3089 | return (ExprNode != nullptr && |
| 3090 | InnerMatcher.matches(*ExprNode, Finder, Builder)); |
| 3091 | } |
| 3092 | |
| 3093 | /// Matches if the call expression's callee's declaration matches the |
| 3094 | /// given matcher. |
| 3095 | /// |
| 3096 | /// Example matches y.x() (matcher = callExpr(callee( |
| 3097 | /// cxxMethodDecl(hasName("x"))))) |
| 3098 | /// \code |
| 3099 | /// class Y { public: void x(); }; |
| 3100 | /// void z() { Y y; y.x(); } |
| 3101 | /// \endcode |
| 3102 | AST_MATCHER_P_OVERLOAD(CallExpr, callee, internal::Matcher<Decl>, InnerMatcher, |
| 3103 | 1) { |
| 3104 | return callExpr(hasDeclaration(InnerMatcher)).matches(Node, Finder, Builder); |
| 3105 | } |
| 3106 | |
| 3107 | /// Matches if the expression's or declaration's type matches a type |
| 3108 | /// matcher. |
| 3109 | /// |
| 3110 | /// Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) |
| 3111 | /// and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X"))))) |
| 3112 | /// and U (matcher = typedefDecl(hasType(asString("int"))) |
| 3113 | /// and friend class X (matcher = friendDecl(hasType("X")) |
| 3114 | /// \code |
| 3115 | /// class X {}; |
| 3116 | /// void y(X &x) { x; X z; } |
| 3117 | /// typedef int U; |
| 3118 | /// class Y { friend class X; }; |
| 3119 | /// \endcode |
| 3120 | AST_POLYMORPHIC_MATCHER_P_OVERLOAD( |
| 3121 | hasType, |
| 3122 | AST_POLYMORPHIC_SUPPORTED_TYPES(Expr, FriendDecl, TypedefNameDecl, |
| 3123 | ValueDecl), |
| 3124 | internal::Matcher<QualType>, InnerMatcher, 0) { |
| 3125 | QualType QT = internal::getUnderlyingType(Node); |
| 3126 | if (!QT.isNull()) |
| 3127 | return InnerMatcher.matches(QT, Finder, Builder); |
| 3128 | return false; |
| 3129 | } |
| 3130 | |
| 3131 | /// Overloaded to match the declaration of the expression's or value |
| 3132 | /// declaration's type. |
| 3133 | /// |
| 3134 | /// In case of a value declaration (for example a variable declaration), |
| 3135 | /// this resolves one layer of indirection. For example, in the value |
| 3136 | /// declaration "X x;", cxxRecordDecl(hasName("X")) matches the declaration of |
| 3137 | /// X, while varDecl(hasType(cxxRecordDecl(hasName("X")))) matches the |
| 3138 | /// declaration of x. |
| 3139 | /// |
| 3140 | /// Example matches x (matcher = expr(hasType(cxxRecordDecl(hasName("X"))))) |
| 3141 | /// and z (matcher = varDecl(hasType(cxxRecordDecl(hasName("X"))))) |
| 3142 | /// and friend class X (matcher = friendDecl(hasType("X")) |
| 3143 | /// \code |
| 3144 | /// class X {}; |
| 3145 | /// void y(X &x) { x; X z; } |
| 3146 | /// class Y { friend class X; }; |
| 3147 | /// \endcode |
| 3148 | /// |
| 3149 | /// Usable as: Matcher<Expr>, Matcher<ValueDecl> |
| 3150 | AST_POLYMORPHIC_MATCHER_P_OVERLOAD( |
| 3151 | hasType, AST_POLYMORPHIC_SUPPORTED_TYPES(Expr, FriendDecl, ValueDecl), |
| 3152 | internal::Matcher<Decl>, InnerMatcher, 1) { |
| 3153 | QualType QT = internal::getUnderlyingType(Node); |
| 3154 | if (!QT.isNull()) |
| 3155 | return qualType(hasDeclaration(InnerMatcher)).matches(QT, Finder, Builder); |
| 3156 | return false; |
| 3157 | } |
| 3158 | |
| 3159 | /// Matches if the type location of the declarator decl's type matches |
| 3160 | /// the inner matcher. |
| 3161 | /// |
| 3162 | /// Given |
| 3163 | /// \code |
| 3164 | /// int x; |
| 3165 | /// \endcode |
| 3166 | /// declaratorDecl(hasTypeLoc(loc(asString("int")))) |
| 3167 | /// matches int x |
| 3168 | AST_MATCHER_P(DeclaratorDecl, hasTypeLoc, internal::Matcher<TypeLoc>, Inner) { |
| 3169 | if (!Node.getTypeSourceInfo()) |
| 3170 | // This happens for example for implicit destructors. |
| 3171 | return false; |
| 3172 | return Inner.matches(Node.getTypeSourceInfo()->getTypeLoc(), Finder, Builder); |
| 3173 | } |
| 3174 | |
| 3175 | /// Matches if the matched type is represented by the given string. |
| 3176 | /// |
| 3177 | /// Given |
| 3178 | /// \code |
| 3179 | /// class Y { public: void x(); }; |
| 3180 | /// void z() { Y* y; y->x(); } |
| 3181 | /// \endcode |
| 3182 | /// cxxMemberCallExpr(on(hasType(asString("class Y *")))) |
| 3183 | /// matches y->x() |
| 3184 | AST_MATCHER_P(QualType, asString, std::string, Name) { |
| 3185 | return Name == Node.getAsString(); |
| 3186 | } |
| 3187 | |
| 3188 | /// Matches if the matched type is a pointer type and the pointee type |
| 3189 | /// matches the specified matcher. |
| 3190 | /// |
| 3191 | /// Example matches y->x() |
| 3192 | /// (matcher = cxxMemberCallExpr(on(hasType(pointsTo |
| 3193 | /// cxxRecordDecl(hasName("Y"))))))) |
| 3194 | /// \code |
| 3195 | /// class Y { public: void x(); }; |
| 3196 | /// void z() { Y *y; y->x(); } |
| 3197 | /// \endcode |
| 3198 | AST_MATCHER_P( |
| 3199 | QualType, pointsTo, internal::Matcher<QualType>, |
| 3200 | InnerMatcher) { |
| 3201 | return (!Node.isNull() && Node->isAnyPointerType() && |
| 3202 | InnerMatcher.matches(Node->getPointeeType(), Finder, Builder)); |
| 3203 | } |
| 3204 | |
| 3205 | /// Overloaded to match the pointee type's declaration. |
| 3206 | AST_MATCHER_P_OVERLOAD(QualType, pointsTo, internal::Matcher<Decl>, |
| 3207 | InnerMatcher, 1) { |
| 3208 | return pointsTo(qualType(hasDeclaration(InnerMatcher))) |
| 3209 | .matches(Node, Finder, Builder); |
| 3210 | } |
| 3211 | |
| 3212 | /// Matches if the matched type matches the unqualified desugared |
| 3213 | /// type of the matched node. |
| 3214 | /// |
| 3215 | /// For example, in: |
| 3216 | /// \code |
| 3217 | /// class A {}; |
| 3218 | /// using B = A; |
| 3219 | /// \endcode |
| 3220 | /// The matcher type(hasUnqualifiedDesugaredType(recordType())) matches |
| 3221 | /// both B and A. |
| 3222 | AST_MATCHER_P(Type, hasUnqualifiedDesugaredType, internal::Matcher<Type>, |
| 3223 | InnerMatcher) { |
| 3224 | return InnerMatcher.matches(*Node.getUnqualifiedDesugaredType(), Finder, |
| 3225 | Builder); |
| 3226 | } |
| 3227 | |
| 3228 | /// Matches if the matched type is a reference type and the referenced |
| 3229 | /// type matches the specified matcher. |
| 3230 | /// |
| 3231 | /// Example matches X &x and const X &y |
| 3232 | /// (matcher = varDecl(hasType(references(cxxRecordDecl(hasName("X")))))) |
| 3233 | /// \code |
| 3234 | /// class X { |
| 3235 | /// void a(X b) { |
| 3236 | /// X &x = b; |
| 3237 | /// const X &y = b; |
| 3238 | /// } |
| 3239 | /// }; |
| 3240 | /// \endcode |
| 3241 | AST_MATCHER_P(QualType, references, internal::Matcher<QualType>, |
| 3242 | InnerMatcher) { |
| 3243 | return (!Node.isNull() && Node->isReferenceType() && |
| 3244 | InnerMatcher.matches(Node->getPointeeType(), Finder, Builder)); |
| 3245 | } |
| 3246 | |
| 3247 | /// Matches QualTypes whose canonical type matches InnerMatcher. |
| 3248 | /// |
| 3249 | /// Given: |
| 3250 | /// \code |
| 3251 | /// typedef int &int_ref; |
| 3252 | /// int a; |
| 3253 | /// int_ref b = a; |
| 3254 | /// \endcode |
| 3255 | /// |
| 3256 | /// \c varDecl(hasType(qualType(referenceType()))))) will not match the |
| 3257 | /// declaration of b but \c |
| 3258 | /// varDecl(hasType(qualType(hasCanonicalType(referenceType())))))) does. |
| 3259 | AST_MATCHER_P(QualType, hasCanonicalType, internal::Matcher<QualType>, |
| 3260 | InnerMatcher) { |
| 3261 | if (Node.isNull()) |
| 3262 | return false; |
| 3263 | return InnerMatcher.matches(Node.getCanonicalType(), Finder, Builder); |
| 3264 | } |
| 3265 | |
| 3266 | /// Overloaded to match the referenced type's declaration. |
| 3267 | AST_MATCHER_P_OVERLOAD(QualType, references, internal::Matcher<Decl>, |
| 3268 | InnerMatcher, 1) { |
| 3269 | return references(qualType(hasDeclaration(InnerMatcher))) |
| 3270 | .matches(Node, Finder, Builder); |
| 3271 | } |
| 3272 | |
| 3273 | /// Matches on the implicit object argument of a member call expression. Unlike |
| 3274 | /// `on`, matches the argument directly without stripping away anything. |
| 3275 | /// |
| 3276 | /// Given |
| 3277 | /// \code |
| 3278 | /// class Y { public: void m(); }; |
| 3279 | /// Y g(); |
| 3280 | /// class X : public Y { void g(); }; |
| 3281 | /// void z(Y y, X x) { y.m(); x.m(); x.g(); (g()).m(); } |
| 3282 | /// \endcode |
| 3283 | /// cxxMemberCallExpr(onImplicitObjectArgument(hasType( |
| 3284 | /// cxxRecordDecl(hasName("Y"))))) |
| 3285 | /// matches `y.m()`, `x.m()` and (g()).m(), but not `x.g()`. |
| 3286 | /// cxxMemberCallExpr(on(callExpr())) |
| 3287 | /// does not match `(g()).m()`, because the parens are not ignored. |
| 3288 | /// |
| 3289 | /// FIXME: Overload to allow directly matching types? |
| 3290 | AST_MATCHER_P(CXXMemberCallExpr, onImplicitObjectArgument, |
| 3291 | internal::Matcher<Expr>, InnerMatcher) { |
| 3292 | const Expr *ExprNode = Node.getImplicitObjectArgument(); |
| 3293 | return (ExprNode != nullptr && |
| 3294 | InnerMatcher.matches(*ExprNode, Finder, Builder)); |
| 3295 | } |
| 3296 | |
| 3297 | /// Matches if the type of the expression's implicit object argument either |
| 3298 | /// matches the InnerMatcher, or is a pointer to a type that matches the |
| 3299 | /// InnerMatcher. |
| 3300 | /// |
| 3301 | /// Given |
| 3302 | /// \code |
| 3303 | /// class Y { public: void m(); }; |
| 3304 | /// class X : public Y { void g(); }; |
| 3305 | /// void z() { Y y; y.m(); Y *p; p->m(); X x; x.m(); x.g(); } |
| 3306 | /// \endcode |
| 3307 | /// cxxMemberCallExpr(thisPointerType(hasDeclaration( |
| 3308 | /// cxxRecordDecl(hasName("Y"))))) |
| 3309 | /// matches `y.m()`, `p->m()` and `x.m()`. |
| 3310 | /// cxxMemberCallExpr(thisPointerType(hasDeclaration( |
| 3311 | /// cxxRecordDecl(hasName("X"))))) |
| 3312 | /// matches `x.g()`. |
| 3313 | AST_MATCHER_P_OVERLOAD(CXXMemberCallExpr, thisPointerType, |
| 3314 | internal::Matcher<QualType>, InnerMatcher, 0) { |
| 3315 | return onImplicitObjectArgument( |
| 3316 | anyOf(hasType(InnerMatcher), hasType(pointsTo(InnerMatcher)))) |
| 3317 | .matches(Node, Finder, Builder); |
| 3318 | } |
| 3319 | |
| 3320 | /// Overloaded to match the type's declaration. |
| 3321 | AST_MATCHER_P_OVERLOAD(CXXMemberCallExpr, thisPointerType, |
| 3322 | internal::Matcher<Decl>, InnerMatcher, 1) { |
| 3323 | return onImplicitObjectArgument( |
| 3324 | anyOf(hasType(InnerMatcher), hasType(pointsTo(InnerMatcher)))) |
| 3325 | .matches(Node, Finder, Builder); |
| 3326 | } |
| 3327 | |
| 3328 | /// Matches a DeclRefExpr that refers to a declaration that matches the |
| 3329 | /// specified matcher. |
| 3330 | /// |
| 3331 | /// Example matches x in if(x) |
| 3332 | /// (matcher = declRefExpr(to(varDecl(hasName("x"))))) |
| 3333 | /// \code |
| 3334 | /// bool x; |
| 3335 | /// if (x) {} |
| 3336 | /// \endcode |
| 3337 | AST_MATCHER_P(DeclRefExpr, to, internal::Matcher<Decl>, |
| 3338 | InnerMatcher) { |
| 3339 | const Decl *DeclNode = Node.getDecl(); |
| 3340 | return (DeclNode != nullptr && |
| 3341 | InnerMatcher.matches(*DeclNode, Finder, Builder)); |
| 3342 | } |
| 3343 | |
| 3344 | /// Matches a \c DeclRefExpr that refers to a declaration through a |
| 3345 | /// specific using shadow declaration. |
| 3346 | /// |
| 3347 | /// Given |
| 3348 | /// \code |
| 3349 | /// namespace a { void f() {} } |
| 3350 | /// using a::f; |
| 3351 | /// void g() { |
| 3352 | /// f(); // Matches this .. |
| 3353 | /// a::f(); // .. but not this. |
| 3354 | /// } |
| 3355 | /// \endcode |
| 3356 | /// declRefExpr(throughUsingDecl(anything())) |
| 3357 | /// matches \c f() |
| 3358 | AST_MATCHER_P(DeclRefExpr, throughUsingDecl, |
| 3359 | internal::Matcher<UsingShadowDecl>, InnerMatcher) { |
| 3360 | const NamedDecl *FoundDecl = Node.getFoundDecl(); |
| 3361 | if (const UsingShadowDecl *UsingDecl = dyn_cast<UsingShadowDecl>(FoundDecl)) |
| 3362 | return InnerMatcher.matches(*UsingDecl, Finder, Builder); |
| 3363 | return false; |
| 3364 | } |
| 3365 | |
| 3366 | /// Matches an \c OverloadExpr if any of the declarations in the set of |
| 3367 | /// overloads matches the given matcher. |
| 3368 | /// |
| 3369 | /// Given |
| 3370 | /// \code |
| 3371 | /// template <typename T> void foo(T); |
| 3372 | /// template <typename T> void bar(T); |
| 3373 | /// template <typename T> void baz(T t) { |
| 3374 | /// foo(t); |
| 3375 | /// bar(t); |
| 3376 | /// } |
| 3377 | /// \endcode |
| 3378 | /// unresolvedLookupExpr(hasAnyDeclaration( |
| 3379 | /// functionTemplateDecl(hasName("foo")))) |
| 3380 | /// matches \c foo in \c foo(t); but not \c bar in \c bar(t); |
| 3381 | AST_MATCHER_P(OverloadExpr, hasAnyDeclaration, internal::Matcher<Decl>, |
| 3382 | InnerMatcher) { |
| 3383 | return matchesFirstInPointerRange(InnerMatcher, Node.decls_begin(), |
| 3384 | Node.decls_end(), Finder, Builder); |
| 3385 | } |
| 3386 | |
| 3387 | /// Matches the Decl of a DeclStmt which has a single declaration. |
| 3388 | /// |
| 3389 | /// Given |
| 3390 | /// \code |
| 3391 | /// int a, b; |
| 3392 | /// int c; |
| 3393 | /// \endcode |
| 3394 | /// declStmt(hasSingleDecl(anything())) |
| 3395 | /// matches 'int c;' but not 'int a, b;'. |
| 3396 | AST_MATCHER_P(DeclStmt, hasSingleDecl, internal::Matcher<Decl>, InnerMatcher) { |
| 3397 | if (Node.isSingleDecl()) { |
| 3398 | const Decl *FoundDecl = Node.getSingleDecl(); |
| 3399 | return InnerMatcher.matches(*FoundDecl, Finder, Builder); |
| 3400 | } |
| 3401 | return false; |
| 3402 | } |
| 3403 | |
| 3404 | /// Matches a variable declaration that has an initializer expression |
| 3405 | /// that matches the given matcher. |
| 3406 | /// |
| 3407 | /// Example matches x (matcher = varDecl(hasInitializer(callExpr()))) |
| 3408 | /// \code |
| 3409 | /// bool y() { return true; } |
| 3410 | /// bool x = y(); |
| 3411 | /// \endcode |
| 3412 | AST_MATCHER_P( |
| 3413 | VarDecl, hasInitializer, internal::Matcher<Expr>, |
| 3414 | InnerMatcher) { |
| 3415 | const Expr *Initializer = Node.getAnyInitializer(); |
| 3416 | return (Initializer != nullptr && |
| 3417 | InnerMatcher.matches(*Initializer, Finder, Builder)); |
| 3418 | } |
| 3419 | |
| 3420 | /// \brief Matches a static variable with local scope. |
| 3421 | /// |
| 3422 | /// Example matches y (matcher = varDecl(isStaticLocal())) |
| 3423 | /// \code |
| 3424 | /// void f() { |
| 3425 | /// int x; |
| 3426 | /// static int y; |
| 3427 | /// } |
| 3428 | /// static int z; |
| 3429 | /// \endcode |
| 3430 | AST_MATCHER(VarDecl, isStaticLocal) { |
| 3431 | return Node.isStaticLocal(); |
| 3432 | } |
| 3433 | |
| 3434 | /// Matches a variable declaration that has function scope and is a |
| 3435 | /// non-static local variable. |
| 3436 | /// |
| 3437 | /// Example matches x (matcher = varDecl(hasLocalStorage()) |
| 3438 | /// \code |
| 3439 | /// void f() { |
| 3440 | /// int x; |
| 3441 | /// static int y; |
| 3442 | /// } |
| 3443 | /// int z; |
| 3444 | /// \endcode |
| 3445 | AST_MATCHER(VarDecl, hasLocalStorage) { |
| 3446 | return Node.hasLocalStorage(); |
| 3447 | } |
| 3448 | |
| 3449 | /// Matches a variable declaration that does not have local storage. |
| 3450 | /// |
| 3451 | /// Example matches y and z (matcher = varDecl(hasGlobalStorage()) |
| 3452 | /// \code |
| 3453 | /// void f() { |
| 3454 | /// int x; |
| 3455 | /// static int y; |
| 3456 | /// } |
| 3457 | /// int z; |
| 3458 | /// \endcode |
| 3459 | AST_MATCHER(VarDecl, hasGlobalStorage) { |
| 3460 | return Node.hasGlobalStorage(); |
| 3461 | } |
| 3462 | |
| 3463 | /// Matches a variable declaration that has automatic storage duration. |
| 3464 | /// |
| 3465 | /// Example matches x, but not y, z, or a. |
| 3466 | /// (matcher = varDecl(hasAutomaticStorageDuration()) |
| 3467 | /// \code |
| 3468 | /// void f() { |
| 3469 | /// int x; |
| 3470 | /// static int y; |
| 3471 | /// thread_local int z; |
| 3472 | /// } |
| 3473 | /// int a; |
| 3474 | /// \endcode |
| 3475 | AST_MATCHER(VarDecl, hasAutomaticStorageDuration) { |
| 3476 | return Node.getStorageDuration() == SD_Automatic; |
| 3477 | } |
| 3478 | |
| 3479 | /// Matches a variable declaration that has static storage duration. |
| 3480 | /// It includes the variable declared at namespace scope and those declared |
| 3481 | /// with "static" and "extern" storage class specifiers. |
| 3482 | /// |
| 3483 | /// \code |
| 3484 | /// void f() { |
| 3485 | /// int x; |
| 3486 | /// static int y; |
| 3487 | /// thread_local int z; |
| 3488 | /// } |
| 3489 | /// int a; |
| 3490 | /// static int b; |
| 3491 | /// extern int c; |
| 3492 | /// varDecl(hasStaticStorageDuration()) |
| 3493 | /// matches the function declaration y, a, b and c. |
| 3494 | /// \endcode |
| 3495 | AST_MATCHER(VarDecl, hasStaticStorageDuration) { |
| 3496 | return Node.getStorageDuration() == SD_Static; |
| 3497 | } |
| 3498 | |
| 3499 | /// Matches a variable declaration that has thread storage duration. |
| 3500 | /// |
| 3501 | /// Example matches z, but not x, z, or a. |
| 3502 | /// (matcher = varDecl(hasThreadStorageDuration()) |
| 3503 | /// \code |
| 3504 | /// void f() { |
| 3505 | /// int x; |
| 3506 | /// static int y; |
| 3507 | /// thread_local int z; |
| 3508 | /// } |
| 3509 | /// int a; |
| 3510 | /// \endcode |
| 3511 | AST_MATCHER(VarDecl, hasThreadStorageDuration) { |
| 3512 | return Node.getStorageDuration() == SD_Thread; |
| 3513 | } |
| 3514 | |
| 3515 | /// Matches a variable declaration that is an exception variable from |
| 3516 | /// a C++ catch block, or an Objective-C \@catch statement. |
| 3517 | /// |
| 3518 | /// Example matches x (matcher = varDecl(isExceptionVariable()) |
| 3519 | /// \code |
| 3520 | /// void f(int y) { |
| 3521 | /// try { |
| 3522 | /// } catch (int x) { |
| 3523 | /// } |
| 3524 | /// } |
| 3525 | /// \endcode |
| 3526 | AST_MATCHER(VarDecl, isExceptionVariable) { |
| 3527 | return Node.isExceptionVariable(); |
| 3528 | } |
| 3529 | |
| 3530 | /// Checks that a call expression or a constructor call expression has |
| 3531 | /// a specific number of arguments (including absent default arguments). |
| 3532 | /// |
| 3533 | /// Example matches f(0, 0) (matcher = callExpr(argumentCountIs(2))) |
| 3534 | /// \code |
| 3535 | /// void f(int x, int y); |
| 3536 | /// f(0, 0); |
| 3537 | /// \endcode |
| 3538 | AST_POLYMORPHIC_MATCHER_P(argumentCountIs, |
| 3539 | AST_POLYMORPHIC_SUPPORTED_TYPES(CallExpr, |
| 3540 | CXXConstructExpr, |
| 3541 | ObjCMessageExpr), |
| 3542 | unsigned, N) { |
| 3543 | return Node.getNumArgs() == N; |
| 3544 | } |
| 3545 | |
| 3546 | /// Matches the n'th argument of a call expression or a constructor |
| 3547 | /// call expression. |
| 3548 | /// |
| 3549 | /// Example matches y in x(y) |
| 3550 | /// (matcher = callExpr(hasArgument(0, declRefExpr()))) |
| 3551 | /// \code |
| 3552 | /// void x(int) { int y; x(y); } |
| 3553 | /// \endcode |
| 3554 | AST_POLYMORPHIC_MATCHER_P2(hasArgument, |
| 3555 | AST_POLYMORPHIC_SUPPORTED_TYPES(CallExpr, |
| 3556 | CXXConstructExpr, |
| 3557 | ObjCMessageExpr), |
| 3558 | unsigned, N, internal::Matcher<Expr>, InnerMatcher) { |
| 3559 | return (N < Node.getNumArgs() && |
| 3560 | InnerMatcher.matches( |
| 3561 | *Node.getArg(N)->IgnoreParenImpCasts(), Finder, Builder)); |
| 3562 | } |
| 3563 | |
| 3564 | /// Matches the n'th item of an initializer list expression. |
| 3565 | /// |
| 3566 | /// Example matches y. |
| 3567 | /// (matcher = initListExpr(hasInit(0, expr()))) |
| 3568 | /// \code |
| 3569 | /// int x{y}. |
| 3570 | /// \endcode |
| 3571 | AST_MATCHER_P2(InitListExpr, hasInit, unsigned, N, |
| 3572 | ast_matchers::internal::Matcher<Expr>, InnerMatcher) { |
| 3573 | return N < Node.getNumInits() && |
| 3574 | InnerMatcher.matches(*Node.getInit(N), Finder, Builder); |
| 3575 | } |
| 3576 | |
| 3577 | /// Matches declaration statements that contain a specific number of |
| 3578 | /// declarations. |
| 3579 | /// |
| 3580 | /// Example: Given |
| 3581 | /// \code |
| 3582 | /// int a, b; |
| 3583 | /// int c; |
| 3584 | /// int d = 2, e; |
| 3585 | /// \endcode |
| 3586 | /// declCountIs(2) |
| 3587 | /// matches 'int a, b;' and 'int d = 2, e;', but not 'int c;'. |
| 3588 | AST_MATCHER_P(DeclStmt, declCountIs, unsigned, N) { |
| 3589 | return std::distance(Node.decl_begin(), Node.decl_end()) == (ptrdiff_t)N; |
| 3590 | } |
| 3591 | |
| 3592 | /// Matches the n'th declaration of a declaration statement. |
| 3593 | /// |
| 3594 | /// Note that this does not work for global declarations because the AST |
| 3595 | /// breaks up multiple-declaration DeclStmt's into multiple single-declaration |
| 3596 | /// DeclStmt's. |
| 3597 | /// Example: Given non-global declarations |
| 3598 | /// \code |
| 3599 | /// int a, b = 0; |
| 3600 | /// int c; |
| 3601 | /// int d = 2, e; |
| 3602 | /// \endcode |
| 3603 | /// declStmt(containsDeclaration( |
| 3604 | /// 0, varDecl(hasInitializer(anything())))) |
| 3605 | /// matches only 'int d = 2, e;', and |
| 3606 | /// declStmt(containsDeclaration(1, varDecl())) |
| 3607 | /// \code |
| 3608 | /// matches 'int a, b = 0' as well as 'int d = 2, e;' |
| 3609 | /// but 'int c;' is not matched. |
| 3610 | /// \endcode |
| 3611 | AST_MATCHER_P2(DeclStmt, containsDeclaration, unsigned, N, |
| 3612 | internal::Matcher<Decl>, InnerMatcher) { |
| 3613 | const unsigned NumDecls = std::distance(Node.decl_begin(), Node.decl_end()); |
| 3614 | if (N >= NumDecls) |
| 3615 | return false; |
| 3616 | DeclStmt::const_decl_iterator Iterator = Node.decl_begin(); |
| 3617 | std::advance(Iterator, N); |
| 3618 | return InnerMatcher.matches(**Iterator, Finder, Builder); |
| 3619 | } |
| 3620 | |
| 3621 | /// Matches a C++ catch statement that has a catch-all handler. |
| 3622 | /// |
| 3623 | /// Given |
| 3624 | /// \code |
| 3625 | /// try { |
| 3626 | /// // ... |
| 3627 | /// } catch (int) { |
| 3628 | /// // ... |
| 3629 | /// } catch (...) { |
| 3630 | /// // ... |
| 3631 | /// } |
| 3632 | /// \endcode |
| 3633 | /// cxxCatchStmt(isCatchAll()) matches catch(...) but not catch(int). |
| 3634 | AST_MATCHER(CXXCatchStmt, isCatchAll) { |
| 3635 | return Node.getExceptionDecl() == nullptr; |
| 3636 | } |
| 3637 | |
| 3638 | /// Matches a constructor initializer. |
| 3639 | /// |
| 3640 | /// Given |
| 3641 | /// \code |
| 3642 | /// struct Foo { |
| 3643 | /// Foo() : foo_(1) { } |
| 3644 | /// int foo_; |
| 3645 | /// }; |
| 3646 | /// \endcode |
| 3647 | /// cxxRecordDecl(has(cxxConstructorDecl( |
| 3648 | /// hasAnyConstructorInitializer(anything()) |
| 3649 | /// ))) |
| 3650 | /// record matches Foo, hasAnyConstructorInitializer matches foo_(1) |
| 3651 | AST_MATCHER_P(CXXConstructorDecl, hasAnyConstructorInitializer, |
| 3652 | internal::Matcher<CXXCtorInitializer>, InnerMatcher) { |
| 3653 | return matchesFirstInPointerRange(InnerMatcher, Node.init_begin(), |
| 3654 | Node.init_end(), Finder, Builder); |
| 3655 | } |
| 3656 | |
| 3657 | /// Matches the field declaration of a constructor initializer. |
| 3658 | /// |
| 3659 | /// Given |
| 3660 | /// \code |
| 3661 | /// struct Foo { |
| 3662 | /// Foo() : foo_(1) { } |
| 3663 | /// int foo_; |
| 3664 | /// }; |
| 3665 | /// \endcode |
| 3666 | /// cxxRecordDecl(has(cxxConstructorDecl(hasAnyConstructorInitializer( |
| 3667 | /// forField(hasName("foo_")))))) |
| 3668 | /// matches Foo |
| 3669 | /// with forField matching foo_ |
| 3670 | AST_MATCHER_P(CXXCtorInitializer, forField, |
| 3671 | internal::Matcher<FieldDecl>, InnerMatcher) { |
| 3672 | const FieldDecl *NodeAsDecl = Node.getAnyMember(); |
| 3673 | return (NodeAsDecl != nullptr && |
| 3674 | InnerMatcher.matches(*NodeAsDecl, Finder, Builder)); |
| 3675 | } |
| 3676 | |
| 3677 | /// Matches the initializer expression of a constructor initializer. |
| 3678 | /// |
| 3679 | /// Given |
| 3680 | /// \code |
| 3681 | /// struct Foo { |
| 3682 | /// Foo() : foo_(1) { } |
| 3683 | /// int foo_; |
| 3684 | /// }; |
| 3685 | /// \endcode |
| 3686 | /// cxxRecordDecl(has(cxxConstructorDecl(hasAnyConstructorInitializer( |
| 3687 | /// withInitializer(integerLiteral(equals(1))))))) |
| 3688 | /// matches Foo |
| 3689 | /// with withInitializer matching (1) |
| 3690 | AST_MATCHER_P(CXXCtorInitializer, withInitializer, |
| 3691 | internal::Matcher<Expr>, InnerMatcher) { |
| 3692 | const Expr* NodeAsExpr = Node.getInit(); |
| 3693 | return (NodeAsExpr != nullptr && |
| 3694 | InnerMatcher.matches(*NodeAsExpr, Finder, Builder)); |
| 3695 | } |
| 3696 | |
| 3697 | /// Matches a constructor initializer if it is explicitly written in |
| 3698 | /// code (as opposed to implicitly added by the compiler). |
| 3699 | /// |
| 3700 | /// Given |
| 3701 | /// \code |
| 3702 | /// struct Foo { |
| 3703 | /// Foo() { } |
| 3704 | /// Foo(int) : foo_("A") { } |
| 3705 | /// string foo_; |
| 3706 | /// }; |
| 3707 | /// \endcode |
| 3708 | /// cxxConstructorDecl(hasAnyConstructorInitializer(isWritten())) |
| 3709 | /// will match Foo(int), but not Foo() |
| 3710 | AST_MATCHER(CXXCtorInitializer, isWritten) { |
| 3711 | return Node.isWritten(); |
| 3712 | } |
| 3713 | |
| 3714 | /// Matches a constructor initializer if it is initializing a base, as |
| 3715 | /// opposed to a member. |
| 3716 | /// |
| 3717 | /// Given |
| 3718 | /// \code |
| 3719 | /// struct B {}; |
| 3720 | /// struct D : B { |
| 3721 | /// int I; |
| 3722 | /// D(int i) : I(i) {} |
| 3723 | /// }; |
| 3724 | /// struct E : B { |
| 3725 | /// E() : B() {} |
| 3726 | /// }; |
| 3727 | /// \endcode |
| 3728 | /// cxxConstructorDecl(hasAnyConstructorInitializer(isBaseInitializer())) |
| 3729 | /// will match E(), but not match D(int). |
| 3730 | AST_MATCHER(CXXCtorInitializer, isBaseInitializer) { |
| 3731 | return Node.isBaseInitializer(); |
| 3732 | } |
| 3733 | |
| 3734 | /// Matches a constructor initializer if it is initializing a member, as |
| 3735 | /// opposed to a base. |
| 3736 | /// |
| 3737 | /// Given |
| 3738 | /// \code |
| 3739 | /// struct B {}; |
| 3740 | /// struct D : B { |
| 3741 | /// int I; |
| 3742 | /// D(int i) : I(i) {} |
| 3743 | /// }; |
| 3744 | /// struct E : B { |
| 3745 | /// E() : B() {} |
| 3746 | /// }; |
| 3747 | /// \endcode |
| 3748 | /// cxxConstructorDecl(hasAnyConstructorInitializer(isMemberInitializer())) |
| 3749 | /// will match D(int), but not match E(). |
| 3750 | AST_MATCHER(CXXCtorInitializer, isMemberInitializer) { |
| 3751 | return Node.isMemberInitializer(); |
| 3752 | } |
| 3753 | |
| 3754 | /// Matches any argument of a call expression or a constructor call |
| 3755 | /// expression, or an ObjC-message-send expression. |
| 3756 | /// |
| 3757 | /// Given |
| 3758 | /// \code |
| 3759 | /// void x(int, int, int) { int y; x(1, y, 42); } |
| 3760 | /// \endcode |
| 3761 | /// callExpr(hasAnyArgument(declRefExpr())) |
| 3762 | /// matches x(1, y, 42) |
| 3763 | /// with hasAnyArgument(...) |
| 3764 | /// matching y |
| 3765 | /// |
| 3766 | /// For ObjectiveC, given |
| 3767 | /// \code |
| 3768 | /// @interface I - (void) f:(int) y; @end |
| 3769 | /// void foo(I *i) { [i f:12]; } |
| 3770 | /// \endcode |
| 3771 | /// objcMessageExpr(hasAnyArgument(integerLiteral(equals(12)))) |
| 3772 | /// matches [i f:12] |
| 3773 | AST_POLYMORPHIC_MATCHER_P(hasAnyArgument, |
| 3774 | AST_POLYMORPHIC_SUPPORTED_TYPES( |
| 3775 | CallExpr, CXXConstructExpr, |
| 3776 | CXXUnresolvedConstructExpr, ObjCMessageExpr), |
| 3777 | internal::Matcher<Expr>, InnerMatcher) { |
| 3778 | for (const Expr *Arg : Node.arguments()) { |
| 3779 | BoundNodesTreeBuilder Result(*Builder); |
| 3780 | if (InnerMatcher.matches(*Arg, Finder, &Result)) { |
| 3781 | *Builder = std::move(Result); |
| 3782 | return true; |
| 3783 | } |
| 3784 | } |
| 3785 | return false; |
| 3786 | } |
| 3787 | |
| 3788 | /// Matches a constructor call expression which uses list initialization. |
| 3789 | AST_MATCHER(CXXConstructExpr, isListInitialization) { |
| 3790 | return Node.isListInitialization(); |
| 3791 | } |
| 3792 | |
| 3793 | /// Matches a constructor call expression which requires |
| 3794 | /// zero initialization. |
| 3795 | /// |
| 3796 | /// Given |
| 3797 | /// \code |
| 3798 | /// void foo() { |
| 3799 | /// struct point { double x; double y; }; |
| 3800 | /// point pt[2] = { { 1.0, 2.0 } }; |
| 3801 | /// } |
| 3802 | /// \endcode |
| 3803 | /// initListExpr(has(cxxConstructExpr(requiresZeroInitialization())) |
| 3804 | /// will match the implicit array filler for pt[1]. |
| 3805 | AST_MATCHER(CXXConstructExpr, requiresZeroInitialization) { |
| 3806 | return Node.requiresZeroInitialization(); |
| 3807 | } |
| 3808 | |
| 3809 | /// Matches the n'th parameter of a function or an ObjC method |
| 3810 | /// declaration or a block. |
| 3811 | /// |
| 3812 | /// Given |
| 3813 | /// \code |
| 3814 | /// class X { void f(int x) {} }; |
| 3815 | /// \endcode |
| 3816 | /// cxxMethodDecl(hasParameter(0, hasType(varDecl()))) |
| 3817 | /// matches f(int x) {} |
| 3818 | /// with hasParameter(...) |
| 3819 | /// matching int x |
| 3820 | /// |
| 3821 | /// For ObjectiveC, given |
| 3822 | /// \code |
| 3823 | /// @interface I - (void) f:(int) y; @end |
| 3824 | /// \endcode |
| 3825 | // |
| 3826 | /// the matcher objcMethodDecl(hasParameter(0, hasName("y"))) |
| 3827 | /// matches the declaration of method f with hasParameter |
| 3828 | /// matching y. |
| 3829 | AST_POLYMORPHIC_MATCHER_P2(hasParameter, |
| 3830 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, |
| 3831 | ObjCMethodDecl, |
| 3832 | BlockDecl), |
| 3833 | unsigned, N, internal::Matcher<ParmVarDecl>, |
| 3834 | InnerMatcher) { |
| 3835 | return (N < Node.parameters().size() |
| 3836 | && InnerMatcher.matches(*Node.parameters()[N], Finder, Builder)); |
| 3837 | } |
| 3838 | |
| 3839 | /// Matches all arguments and their respective ParmVarDecl. |
| 3840 | /// |
| 3841 | /// Given |
| 3842 | /// \code |
| 3843 | /// void f(int i); |
| 3844 | /// int y; |
| 3845 | /// f(y); |
| 3846 | /// \endcode |
| 3847 | /// callExpr( |
| 3848 | /// forEachArgumentWithParam( |
| 3849 | /// declRefExpr(to(varDecl(hasName("y")))), |
| 3850 | /// parmVarDecl(hasType(isInteger())) |
| 3851 | /// )) |
| 3852 | /// matches f(y); |
| 3853 | /// with declRefExpr(...) |
| 3854 | /// matching int y |
| 3855 | /// and parmVarDecl(...) |
| 3856 | /// matching int i |
| 3857 | AST_POLYMORPHIC_MATCHER_P2(forEachArgumentWithParam, |
| 3858 | AST_POLYMORPHIC_SUPPORTED_TYPES(CallExpr, |
| 3859 | CXXConstructExpr), |
| 3860 | internal::Matcher<Expr>, ArgMatcher, |
| 3861 | internal::Matcher<ParmVarDecl>, ParamMatcher) { |
| 3862 | BoundNodesTreeBuilder Result; |
| 3863 | // The first argument of an overloaded member operator is the implicit object |
| 3864 | // argument of the method which should not be matched against a parameter, so |
| 3865 | // we skip over it here. |
| 3866 | BoundNodesTreeBuilder Matches; |
| 3867 | unsigned ArgIndex = cxxOperatorCallExpr(callee(cxxMethodDecl())) |
| 3868 | .matches(Node, Finder, &Matches) |
| 3869 | ? 1 |
| 3870 | : 0; |
| 3871 | int ParamIndex = 0; |
| 3872 | bool Matched = false; |
| 3873 | for (; ArgIndex < Node.getNumArgs(); ++ArgIndex) { |
| 3874 | BoundNodesTreeBuilder ArgMatches(*Builder); |
| 3875 | if (ArgMatcher.matches(*(Node.getArg(ArgIndex)->IgnoreParenCasts()), |
| 3876 | Finder, &ArgMatches)) { |
| 3877 | BoundNodesTreeBuilder ParamMatches(ArgMatches); |
| 3878 | if (expr(anyOf(cxxConstructExpr(hasDeclaration(cxxConstructorDecl( |
| 3879 | hasParameter(ParamIndex, ParamMatcher)))), |
| 3880 | callExpr(callee(functionDecl( |
| 3881 | hasParameter(ParamIndex, ParamMatcher)))))) |
| 3882 | .matches(Node, Finder, &ParamMatches)) { |
| 3883 | Result.addMatch(ParamMatches); |
| 3884 | Matched = true; |
| 3885 | } |
| 3886 | } |
| 3887 | ++ParamIndex; |
| 3888 | } |
| 3889 | *Builder = std::move(Result); |
| 3890 | return Matched; |
| 3891 | } |
| 3892 | |
| 3893 | /// Matches any parameter of a function or an ObjC method declaration or a |
| 3894 | /// block. |
| 3895 | /// |
| 3896 | /// Does not match the 'this' parameter of a method. |
| 3897 | /// |
| 3898 | /// Given |
| 3899 | /// \code |
| 3900 | /// class X { void f(int x, int y, int z) {} }; |
| 3901 | /// \endcode |
| 3902 | /// cxxMethodDecl(hasAnyParameter(hasName("y"))) |
| 3903 | /// matches f(int x, int y, int z) {} |
| 3904 | /// with hasAnyParameter(...) |
| 3905 | /// matching int y |
| 3906 | /// |
| 3907 | /// For ObjectiveC, given |
| 3908 | /// \code |
| 3909 | /// @interface I - (void) f:(int) y; @end |
| 3910 | /// \endcode |
| 3911 | // |
| 3912 | /// the matcher objcMethodDecl(hasAnyParameter(hasName("y"))) |
| 3913 | /// matches the declaration of method f with hasParameter |
| 3914 | /// matching y. |
| 3915 | /// |
| 3916 | /// For blocks, given |
| 3917 | /// \code |
| 3918 | /// b = ^(int y) { printf("%d", y) }; |
| 3919 | /// \endcode |
| 3920 | /// |
| 3921 | /// the matcher blockDecl(hasAnyParameter(hasName("y"))) |
| 3922 | /// matches the declaration of the block b with hasParameter |
| 3923 | /// matching y. |
| 3924 | AST_POLYMORPHIC_MATCHER_P(hasAnyParameter, |
| 3925 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, |
| 3926 | ObjCMethodDecl, |
| 3927 | BlockDecl), |
| 3928 | internal::Matcher<ParmVarDecl>, |
| 3929 | InnerMatcher) { |
| 3930 | return matchesFirstInPointerRange(InnerMatcher, Node.param_begin(), |
| 3931 | Node.param_end(), Finder, Builder); |
| 3932 | } |
| 3933 | |
| 3934 | /// Matches \c FunctionDecls and \c FunctionProtoTypes that have a |
| 3935 | /// specific parameter count. |
| 3936 | /// |
| 3937 | /// Given |
| 3938 | /// \code |
| 3939 | /// void f(int i) {} |
| 3940 | /// void g(int i, int j) {} |
| 3941 | /// void h(int i, int j); |
| 3942 | /// void j(int i); |
| 3943 | /// void k(int x, int y, int z, ...); |
| 3944 | /// \endcode |
| 3945 | /// functionDecl(parameterCountIs(2)) |
| 3946 | /// matches \c g and \c h |
| 3947 | /// functionProtoType(parameterCountIs(2)) |
| 3948 | /// matches \c g and \c h |
| 3949 | /// functionProtoType(parameterCountIs(3)) |
| 3950 | /// matches \c k |
| 3951 | AST_POLYMORPHIC_MATCHER_P(parameterCountIs, |
| 3952 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, |
| 3953 | FunctionProtoType), |
| 3954 | unsigned, N) { |
| 3955 | return Node.getNumParams() == N; |
| 3956 | } |
| 3957 | |
| 3958 | /// Matches \c FunctionDecls that have a noreturn attribute. |
| 3959 | /// |
| 3960 | /// Given |
| 3961 | /// \code |
| 3962 | /// void nope(); |
| 3963 | /// [[noreturn]] void a(); |
| 3964 | /// __attribute__((noreturn)) void b(); |
| 3965 | /// struct c { [[noreturn]] c(); }; |
| 3966 | /// \endcode |
| 3967 | /// functionDecl(isNoReturn()) |
| 3968 | /// matches all of those except |
| 3969 | /// \code |
| 3970 | /// void nope(); |
| 3971 | /// \endcode |
| 3972 | AST_MATCHER(FunctionDecl, isNoReturn) { return Node.isNoReturn(); } |
| 3973 | |
| 3974 | /// Matches the return type of a function declaration. |
| 3975 | /// |
| 3976 | /// Given: |
| 3977 | /// \code |
| 3978 | /// class X { int f() { return 1; } }; |
| 3979 | /// \endcode |
| 3980 | /// cxxMethodDecl(returns(asString("int"))) |
| 3981 | /// matches int f() { return 1; } |
| 3982 | AST_MATCHER_P(FunctionDecl, returns, |
| 3983 | internal::Matcher<QualType>, InnerMatcher) { |
| 3984 | return InnerMatcher.matches(Node.getReturnType(), Finder, Builder); |
| 3985 | } |
| 3986 | |
| 3987 | /// Matches extern "C" function or variable declarations. |
| 3988 | /// |
| 3989 | /// Given: |
| 3990 | /// \code |
| 3991 | /// extern "C" void f() {} |
| 3992 | /// extern "C" { void g() {} } |
| 3993 | /// void h() {} |
| 3994 | /// extern "C" int x = 1; |
| 3995 | /// extern "C" int y = 2; |
| 3996 | /// int z = 3; |
| 3997 | /// \endcode |
| 3998 | /// functionDecl(isExternC()) |
| 3999 | /// matches the declaration of f and g, but not the declaration of h. |
| 4000 | /// varDecl(isExternC()) |
| 4001 | /// matches the declaration of x and y, but not the declaration of z. |
| 4002 | AST_POLYMORPHIC_MATCHER(isExternC, AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, |
| 4003 | VarDecl)) { |
| 4004 | return Node.isExternC(); |
| 4005 | } |
| 4006 | |
| 4007 | /// Matches variable/function declarations that have "static" storage |
| 4008 | /// class specifier ("static" keyword) written in the source. |
| 4009 | /// |
| 4010 | /// Given: |
| 4011 | /// \code |
| 4012 | /// static void f() {} |
| 4013 | /// static int i = 0; |
| 4014 | /// extern int j; |
| 4015 | /// int k; |
| 4016 | /// \endcode |
| 4017 | /// functionDecl(isStaticStorageClass()) |
| 4018 | /// matches the function declaration f. |
| 4019 | /// varDecl(isStaticStorageClass()) |
| 4020 | /// matches the variable declaration i. |
| 4021 | AST_POLYMORPHIC_MATCHER(isStaticStorageClass, |
| 4022 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, |
| 4023 | VarDecl)) { |
| 4024 | return Node.getStorageClass() == SC_Static; |
| 4025 | } |
| 4026 | |
| 4027 | /// Matches deleted function declarations. |
| 4028 | /// |
| 4029 | /// Given: |
| 4030 | /// \code |
| 4031 | /// void Func(); |
| 4032 | /// void DeletedFunc() = delete; |
| 4033 | /// \endcode |
| 4034 | /// functionDecl(isDeleted()) |
| 4035 | /// matches the declaration of DeletedFunc, but not Func. |
| 4036 | AST_MATCHER(FunctionDecl, isDeleted) { |
| 4037 | return Node.isDeleted(); |
| 4038 | } |
| 4039 | |
| 4040 | /// Matches defaulted function declarations. |
| 4041 | /// |
| 4042 | /// Given: |
| 4043 | /// \code |
| 4044 | /// class A { ~A(); }; |
| 4045 | /// class B { ~B() = default; }; |
| 4046 | /// \endcode |
| 4047 | /// functionDecl(isDefaulted()) |
| 4048 | /// matches the declaration of ~B, but not ~A. |
| 4049 | AST_MATCHER(FunctionDecl, isDefaulted) { |
| 4050 | return Node.isDefaulted(); |
| 4051 | } |
| 4052 | |
| 4053 | /// Matches functions that have a dynamic exception specification. |
| 4054 | /// |
| 4055 | /// Given: |
| 4056 | /// \code |
| 4057 | /// void f(); |
| 4058 | /// void g() noexcept; |
| 4059 | /// void h() noexcept(true); |
| 4060 | /// void i() noexcept(false); |
| 4061 | /// void j() throw(); |
| 4062 | /// void k() throw(int); |
| 4063 | /// void l() throw(...); |
| 4064 | /// \endcode |
| 4065 | /// functionDecl(hasDynamicExceptionSpec()) and |
| 4066 | /// functionProtoType(hasDynamicExceptionSpec()) |
| 4067 | /// match the declarations of j, k, and l, but not f, g, h, or i. |
| 4068 | AST_POLYMORPHIC_MATCHER(hasDynamicExceptionSpec, |
| 4069 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, |
| 4070 | FunctionProtoType)) { |
| 4071 | if (const FunctionProtoType *FnTy = internal::getFunctionProtoType(Node)) |
| 4072 | return FnTy->hasDynamicExceptionSpec(); |
| 4073 | return false; |
| 4074 | } |
| 4075 | |
| 4076 | /// Matches functions that have a non-throwing exception specification. |
| 4077 | /// |
| 4078 | /// Given: |
| 4079 | /// \code |
| 4080 | /// void f(); |
| 4081 | /// void g() noexcept; |
| 4082 | /// void h() throw(); |
| 4083 | /// void i() throw(int); |
| 4084 | /// void j() noexcept(false); |
| 4085 | /// \endcode |
| 4086 | /// functionDecl(isNoThrow()) and functionProtoType(isNoThrow()) |
| 4087 | /// match the declarations of g, and h, but not f, i or j. |
| 4088 | AST_POLYMORPHIC_MATCHER(isNoThrow, |
| 4089 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, |
| 4090 | FunctionProtoType)) { |
| 4091 | const FunctionProtoType *FnTy = internal::getFunctionProtoType(Node); |
| 4092 | |
| 4093 | // If the function does not have a prototype, then it is assumed to be a |
| 4094 | // throwing function (as it would if the function did not have any exception |
| 4095 | // specification). |
| 4096 | if (!FnTy) |
| 4097 | return false; |
| 4098 | |
| 4099 | // Assume the best for any unresolved exception specification. |
| 4100 | if (isUnresolvedExceptionSpec(FnTy->getExceptionSpecType())) |
| 4101 | return true; |
| 4102 | |
| 4103 | return FnTy->isNothrow(); |
| 4104 | } |
| 4105 | |
| 4106 | /// Matches constexpr variable and function declarations, |
| 4107 | /// and if constexpr. |
| 4108 | /// |
| 4109 | /// Given: |
| 4110 | /// \code |
| 4111 | /// constexpr int foo = 42; |
| 4112 | /// constexpr int bar(); |
| 4113 | /// void baz() { if constexpr(1 > 0) {} } |
| 4114 | /// \endcode |
| 4115 | /// varDecl(isConstexpr()) |
| 4116 | /// matches the declaration of foo. |
| 4117 | /// functionDecl(isConstexpr()) |
| 4118 | /// matches the declaration of bar. |
| 4119 | /// ifStmt(isConstexpr()) |
| 4120 | /// matches the if statement in baz. |
| 4121 | AST_POLYMORPHIC_MATCHER(isConstexpr, |
| 4122 | AST_POLYMORPHIC_SUPPORTED_TYPES(VarDecl, |
| 4123 | FunctionDecl, |
| 4124 | IfStmt)) { |
| 4125 | return Node.isConstexpr(); |
| 4126 | } |
| 4127 | |
| 4128 | /// Matches the condition expression of an if statement, for loop, |
| 4129 | /// switch statement or conditional operator. |
| 4130 | /// |
| 4131 | /// Example matches true (matcher = hasCondition(cxxBoolLiteral(equals(true)))) |
| 4132 | /// \code |
| 4133 | /// if (true) {} |
| 4134 | /// \endcode |
| 4135 | AST_POLYMORPHIC_MATCHER_P( |
| 4136 | hasCondition, |
| 4137 | AST_POLYMORPHIC_SUPPORTED_TYPES(IfStmt, ForStmt, WhileStmt, DoStmt, |
| 4138 | SwitchStmt, AbstractConditionalOperator), |
| 4139 | internal::Matcher<Expr>, InnerMatcher) { |
| 4140 | const Expr *const Condition = Node.getCond(); |
| 4141 | return (Condition != nullptr && |
| 4142 | InnerMatcher.matches(*Condition, Finder, Builder)); |
| 4143 | } |
| 4144 | |
| 4145 | /// Matches the then-statement of an if statement. |
| 4146 | /// |
| 4147 | /// Examples matches the if statement |
| 4148 | /// (matcher = ifStmt(hasThen(cxxBoolLiteral(equals(true))))) |
| 4149 | /// \code |
| 4150 | /// if (false) true; else false; |
| 4151 | /// \endcode |
| 4152 | AST_MATCHER_P(IfStmt, hasThen, internal::Matcher<Stmt>, InnerMatcher) { |
| 4153 | const Stmt *const Then = Node.getThen(); |
| 4154 | return (Then != nullptr && InnerMatcher.matches(*Then, Finder, Builder)); |
| 4155 | } |
| 4156 | |
| 4157 | /// Matches the else-statement of an if statement. |
| 4158 | /// |
| 4159 | /// Examples matches the if statement |
| 4160 | /// (matcher = ifStmt(hasElse(cxxBoolLiteral(equals(true))))) |
| 4161 | /// \code |
| 4162 | /// if (false) false; else true; |
| 4163 | /// \endcode |
| 4164 | AST_MATCHER_P(IfStmt, hasElse, internal::Matcher<Stmt>, InnerMatcher) { |
| 4165 | const Stmt *const Else = Node.getElse(); |
| 4166 | return (Else != nullptr && InnerMatcher.matches(*Else, Finder, Builder)); |
| 4167 | } |
| 4168 | |
| 4169 | /// Matches if a node equals a previously bound node. |
| 4170 | /// |
| 4171 | /// Matches a node if it equals the node previously bound to \p ID. |
| 4172 | /// |
| 4173 | /// Given |
| 4174 | /// \code |
| 4175 | /// class X { int a; int b; }; |
| 4176 | /// \endcode |
| 4177 | /// cxxRecordDecl( |
| 4178 | /// has(fieldDecl(hasName("a"), hasType(type().bind("t")))), |
| 4179 | /// has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t")))))) |
| 4180 | /// matches the class \c X, as \c a and \c b have the same type. |
| 4181 | /// |
| 4182 | /// Note that when multiple matches are involved via \c forEach* matchers, |
| 4183 | /// \c equalsBoundNodes acts as a filter. |
| 4184 | /// For example: |
| 4185 | /// compoundStmt( |
| 4186 | /// forEachDescendant(varDecl().bind("d")), |
| 4187 | /// forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))) |
| 4188 | /// will trigger a match for each combination of variable declaration |
| 4189 | /// and reference to that variable declaration within a compound statement. |
| 4190 | AST_POLYMORPHIC_MATCHER_P(equalsBoundNode, |
| 4191 | AST_POLYMORPHIC_SUPPORTED_TYPES(Stmt, Decl, Type, |
| 4192 | QualType), |
| 4193 | std::string, ID) { |
| 4194 | // FIXME: Figure out whether it makes sense to allow this |
| 4195 | // on any other node types. |
| 4196 | // For *Loc it probably does not make sense, as those seem |
| 4197 | // unique. For NestedNameSepcifier it might make sense, as |
| 4198 | // those also have pointer identity, but I'm not sure whether |
| 4199 | // they're ever reused. |
| 4200 | internal::NotEqualsBoundNodePredicate Predicate; |
| 4201 | Predicate.ID = ID; |
| 4202 | Predicate.Node = ast_type_traits::DynTypedNode::create(Node); |
| 4203 | return Builder->removeBindings(Predicate); |
| 4204 | } |
| 4205 | |
| 4206 | /// Matches the condition variable statement in an if statement. |
| 4207 | /// |
| 4208 | /// Given |
| 4209 | /// \code |
| 4210 | /// if (A* a = GetAPointer()) {} |
| 4211 | /// \endcode |
| 4212 | /// hasConditionVariableStatement(...) |
| 4213 | /// matches 'A* a = GetAPointer()'. |
| 4214 | AST_MATCHER_P(IfStmt, hasConditionVariableStatement, |
| 4215 | internal::Matcher<DeclStmt>, InnerMatcher) { |
| 4216 | const DeclStmt* const DeclarationStatement = |
| 4217 | Node.getConditionVariableDeclStmt(); |
| 4218 | return DeclarationStatement != nullptr && |
| 4219 | InnerMatcher.matches(*DeclarationStatement, Finder, Builder); |
| 4220 | } |
| 4221 | |
| 4222 | /// Matches the index expression of an array subscript expression. |
| 4223 | /// |
| 4224 | /// Given |
| 4225 | /// \code |
| 4226 | /// int i[5]; |
| 4227 | /// void f() { i[1] = 42; } |
| 4228 | /// \endcode |
| 4229 | /// arraySubscriptExpression(hasIndex(integerLiteral())) |
| 4230 | /// matches \c i[1] with the \c integerLiteral() matching \c 1 |
| 4231 | AST_MATCHER_P(ArraySubscriptExpr, hasIndex, |
| 4232 | internal::Matcher<Expr>, InnerMatcher) { |
| 4233 | if (const Expr* Expression = Node.getIdx()) |
| 4234 | return InnerMatcher.matches(*Expression, Finder, Builder); |
| 4235 | return false; |
| 4236 | } |
| 4237 | |
| 4238 | /// Matches the base expression of an array subscript expression. |
| 4239 | /// |
| 4240 | /// Given |
| 4241 | /// \code |
| 4242 | /// int i[5]; |
| 4243 | /// void f() { i[1] = 42; } |
| 4244 | /// \endcode |
| 4245 | /// arraySubscriptExpression(hasBase(implicitCastExpr( |
| 4246 | /// hasSourceExpression(declRefExpr())))) |
| 4247 | /// matches \c i[1] with the \c declRefExpr() matching \c i |
| 4248 | AST_MATCHER_P(ArraySubscriptExpr, hasBase, |
| 4249 | internal::Matcher<Expr>, InnerMatcher) { |
| 4250 | if (const Expr* Expression = Node.getBase()) |
| 4251 | return InnerMatcher.matches(*Expression, Finder, Builder); |
| 4252 | return false; |
| 4253 | } |
| 4254 | |
| 4255 | /// Matches a 'for', 'while', 'do while' statement or a function |
| 4256 | /// definition that has a given body. |
| 4257 | /// |
| 4258 | /// Given |
| 4259 | /// \code |
| 4260 | /// for (;;) {} |
| 4261 | /// \endcode |
| 4262 | /// hasBody(compoundStmt()) |
| 4263 | /// matches 'for (;;) {}' |
| 4264 | /// with compoundStmt() |
| 4265 | /// matching '{}' |
| 4266 | AST_POLYMORPHIC_MATCHER_P(hasBody, |
| 4267 | AST_POLYMORPHIC_SUPPORTED_TYPES(DoStmt, ForStmt, |
| 4268 | WhileStmt, |
| 4269 | CXXForRangeStmt, |
| 4270 | FunctionDecl), |
| 4271 | internal::Matcher<Stmt>, InnerMatcher) { |
| 4272 | const Stmt *const Statement = internal::GetBodyMatcher<NodeType>::get(Node); |
| 4273 | return (Statement != nullptr && |
| 4274 | InnerMatcher.matches(*Statement, Finder, Builder)); |
| 4275 | } |
| 4276 | |
| 4277 | /// Matches compound statements where at least one substatement matches |
| 4278 | /// a given matcher. Also matches StmtExprs that have CompoundStmt as children. |
| 4279 | /// |
| 4280 | /// Given |
| 4281 | /// \code |
| 4282 | /// { {}; 1+2; } |
| 4283 | /// \endcode |
| 4284 | /// hasAnySubstatement(compoundStmt()) |
| 4285 | /// matches '{ {}; 1+2; }' |
| 4286 | /// with compoundStmt() |
| 4287 | /// matching '{}' |
| 4288 | AST_POLYMORPHIC_MATCHER_P(hasAnySubstatement, |
| 4289 | AST_POLYMORPHIC_SUPPORTED_TYPES(CompoundStmt, |
| 4290 | StmtExpr), |
| 4291 | internal::Matcher<Stmt>, InnerMatcher) { |
| 4292 | const CompoundStmt *CS = CompoundStmtMatcher<NodeType>::get(Node); |
| 4293 | return CS && matchesFirstInPointerRange(InnerMatcher, CS->body_begin(), |
| 4294 | CS->body_end(), Finder, Builder); |
| 4295 | } |
| 4296 | |
| 4297 | /// Checks that a compound statement contains a specific number of |
| 4298 | /// child statements. |
| 4299 | /// |
| 4300 | /// Example: Given |
| 4301 | /// \code |
| 4302 | /// { for (;;) {} } |
| 4303 | /// \endcode |
| 4304 | /// compoundStmt(statementCountIs(0))) |
| 4305 | /// matches '{}' |
| 4306 | /// but does not match the outer compound statement. |
| 4307 | AST_MATCHER_P(CompoundStmt, statementCountIs, unsigned, N) { |
| 4308 | return Node.size() == N; |
| 4309 | } |
| 4310 | |
| 4311 | /// Matches literals that are equal to the given value of type ValueT. |
| 4312 | /// |
| 4313 | /// Given |
| 4314 | /// \code |
| 4315 | /// f('\0', false, 3.14, 42); |
| 4316 | /// \endcode |
| 4317 | /// characterLiteral(equals(0)) |
| 4318 | /// matches '\0' |
| 4319 | /// cxxBoolLiteral(equals(false)) and cxxBoolLiteral(equals(0)) |
| 4320 | /// match false |
| 4321 | /// floatLiteral(equals(3.14)) and floatLiteral(equals(314e-2)) |
| 4322 | /// match 3.14 |
| 4323 | /// integerLiteral(equals(42)) |
| 4324 | /// matches 42 |
| 4325 | /// |
| 4326 | /// Note that you cannot directly match a negative numeric literal because the |
| 4327 | /// minus sign is not part of the literal: It is a unary operator whose operand |
| 4328 | /// is the positive numeric literal. Instead, you must use a unaryOperator() |
| 4329 | /// matcher to match the minus sign: |
| 4330 | /// |
| 4331 | /// unaryOperator(hasOperatorName("-"), |
| 4332 | /// hasUnaryOperand(integerLiteral(equals(13)))) |
| 4333 | /// |
| 4334 | /// Usable as: Matcher<CharacterLiteral>, Matcher<CXXBoolLiteralExpr>, |
| 4335 | /// Matcher<FloatingLiteral>, Matcher<IntegerLiteral> |
| 4336 | template <typename ValueT> |
| 4337 | internal::PolymorphicMatcherWithParam1<internal::ValueEqualsMatcher, ValueT> |
| 4338 | equals(const ValueT &Value) { |
| 4339 | return internal::PolymorphicMatcherWithParam1< |
| 4340 | internal::ValueEqualsMatcher, |
| 4341 | ValueT>(Value); |
| 4342 | } |
| 4343 | |
| 4344 | AST_POLYMORPHIC_MATCHER_P_OVERLOAD(equals, |
| 4345 | AST_POLYMORPHIC_SUPPORTED_TYPES(CharacterLiteral, |
| 4346 | CXXBoolLiteralExpr, |
| 4347 | IntegerLiteral), |
| 4348 | bool, Value, 0) { |
| 4349 | return internal::ValueEqualsMatcher<NodeType, ParamT>(Value) |
| 4350 | .matchesNode(Node); |
| 4351 | } |
| 4352 | |
| 4353 | AST_POLYMORPHIC_MATCHER_P_OVERLOAD(equals, |
| 4354 | AST_POLYMORPHIC_SUPPORTED_TYPES(CharacterLiteral, |
| 4355 | CXXBoolLiteralExpr, |
| 4356 | IntegerLiteral), |
| 4357 | unsigned, Value, 1) { |
| 4358 | return internal::ValueEqualsMatcher<NodeType, ParamT>(Value) |
| 4359 | .matchesNode(Node); |
| 4360 | } |
| 4361 | |
| 4362 | AST_POLYMORPHIC_MATCHER_P_OVERLOAD(equals, |
| 4363 | AST_POLYMORPHIC_SUPPORTED_TYPES(CharacterLiteral, |
| 4364 | CXXBoolLiteralExpr, |
| 4365 | FloatingLiteral, |
| 4366 | IntegerLiteral), |
| 4367 | double, Value, 2) { |
| 4368 | return internal::ValueEqualsMatcher<NodeType, ParamT>(Value) |
| 4369 | .matchesNode(Node); |
| 4370 | } |
| 4371 | |
| 4372 | /// Matches the operator Name of operator expressions (binary or |
| 4373 | /// unary). |
| 4374 | /// |
| 4375 | /// Example matches a || b (matcher = binaryOperator(hasOperatorName("||"))) |
| 4376 | /// \code |
| 4377 | /// !(a || b) |
| 4378 | /// \endcode |
| 4379 | AST_POLYMORPHIC_MATCHER_P(hasOperatorName, |
| 4380 | AST_POLYMORPHIC_SUPPORTED_TYPES(BinaryOperator, |
| 4381 | UnaryOperator), |
| 4382 | std::string, Name) { |
| 4383 | return Name == Node.getOpcodeStr(Node.getOpcode()); |
| 4384 | } |
| 4385 | |
| 4386 | /// Matches all kinds of assignment operators. |
| 4387 | /// |
| 4388 | /// Example 1: matches a += b (matcher = binaryOperator(isAssignmentOperator())) |
| 4389 | /// \code |
| 4390 | /// if (a == b) |
| 4391 | /// a += b; |
| 4392 | /// \endcode |
| 4393 | /// |
| 4394 | /// Example 2: matches s1 = s2 |
| 4395 | /// (matcher = cxxOperatorCallExpr(isAssignmentOperator())) |
| 4396 | /// \code |
| 4397 | /// struct S { S& operator=(const S&); }; |
| 4398 | /// void x() { S s1, s2; s1 = s2; }) |
| 4399 | /// \endcode |
| 4400 | AST_POLYMORPHIC_MATCHER(isAssignmentOperator, |
| 4401 | AST_POLYMORPHIC_SUPPORTED_TYPES(BinaryOperator, |
| 4402 | CXXOperatorCallExpr)) { |
| 4403 | return Node.isAssignmentOp(); |
| 4404 | } |
| 4405 | |
| 4406 | /// Matches the left hand side of binary operator expressions. |
| 4407 | /// |
| 4408 | /// Example matches a (matcher = binaryOperator(hasLHS())) |
| 4409 | /// \code |
| 4410 | /// a || b |
| 4411 | /// \endcode |
| 4412 | AST_POLYMORPHIC_MATCHER_P(hasLHS, |
| 4413 | AST_POLYMORPHIC_SUPPORTED_TYPES(BinaryOperator, |
| 4414 | ArraySubscriptExpr), |
| 4415 | internal::Matcher<Expr>, InnerMatcher) { |
| 4416 | const Expr *LeftHandSide = Node.getLHS(); |
| 4417 | return (LeftHandSide != nullptr && |
| 4418 | InnerMatcher.matches(*LeftHandSide, Finder, Builder)); |
| 4419 | } |
| 4420 | |
| 4421 | /// Matches the right hand side of binary operator expressions. |
| 4422 | /// |
| 4423 | /// Example matches b (matcher = binaryOperator(hasRHS())) |
| 4424 | /// \code |
| 4425 | /// a || b |
| 4426 | /// \endcode |
| 4427 | AST_POLYMORPHIC_MATCHER_P(hasRHS, |
| 4428 | AST_POLYMORPHIC_SUPPORTED_TYPES(BinaryOperator, |
| 4429 | ArraySubscriptExpr), |
| 4430 | internal::Matcher<Expr>, InnerMatcher) { |
| 4431 | const Expr *RightHandSide = Node.getRHS(); |
| 4432 | return (RightHandSide != nullptr && |
| 4433 | InnerMatcher.matches(*RightHandSide, Finder, Builder)); |
| 4434 | } |
| 4435 | |
| 4436 | /// Matches if either the left hand side or the right hand side of a |
| 4437 | /// binary operator matches. |
| 4438 | inline internal::Matcher<BinaryOperator> hasEitherOperand( |
| 4439 | const internal::Matcher<Expr> &InnerMatcher) { |
| 4440 | return anyOf(hasLHS(InnerMatcher), hasRHS(InnerMatcher)); |
| 4441 | } |
| 4442 | |
| 4443 | /// Matches if the operand of a unary operator matches. |
| 4444 | /// |
| 4445 | /// Example matches true (matcher = hasUnaryOperand( |
| 4446 | /// cxxBoolLiteral(equals(true)))) |
| 4447 | /// \code |
| 4448 | /// !true |
| 4449 | /// \endcode |
| 4450 | AST_MATCHER_P(UnaryOperator, hasUnaryOperand, |
| 4451 | internal::Matcher<Expr>, InnerMatcher) { |
| 4452 | const Expr * const Operand = Node.getSubExpr(); |
| 4453 | return (Operand != nullptr && |
| 4454 | InnerMatcher.matches(*Operand, Finder, Builder)); |
| 4455 | } |
| 4456 | |
| 4457 | /// Matches if the cast's source expression |
| 4458 | /// or opaque value's source expression matches the given matcher. |
| 4459 | /// |
| 4460 | /// Example 1: matches "a string" |
| 4461 | /// (matcher = castExpr(hasSourceExpression(cxxConstructExpr()))) |
| 4462 | /// \code |
| 4463 | /// class URL { URL(string); }; |
| 4464 | /// URL url = "a string"; |
| 4465 | /// \endcode |
| 4466 | /// |
| 4467 | /// Example 2: matches 'b' (matcher = |
| 4468 | /// opaqueValueExpr(hasSourceExpression(implicitCastExpr(declRefExpr()))) |
| 4469 | /// \code |
| 4470 | /// int a = b ?: 1; |
| 4471 | /// \endcode |
| 4472 | AST_POLYMORPHIC_MATCHER_P(hasSourceExpression, |
| 4473 | AST_POLYMORPHIC_SUPPORTED_TYPES(CastExpr, |
| 4474 | OpaqueValueExpr), |
| 4475 | internal::Matcher<Expr>, InnerMatcher) { |
| 4476 | const Expr *const SubExpression = |
| 4477 | internal::GetSourceExpressionMatcher<NodeType>::get(Node); |
| 4478 | return (SubExpression != nullptr && |
| 4479 | InnerMatcher.matches(*SubExpression, Finder, Builder)); |
| 4480 | } |
| 4481 | |
| 4482 | /// Matches casts that has a given cast kind. |
| 4483 | /// |
| 4484 | /// Example: matches the implicit cast around \c 0 |
| 4485 | /// (matcher = castExpr(hasCastKind(CK_NullToPointer))) |
| 4486 | /// \code |
| 4487 | /// int *p = 0; |
| 4488 | /// \endcode |
| 4489 | /// |
| 4490 | /// If the matcher is use from clang-query, CastKind parameter |
| 4491 | /// should be passed as a quoted string. e.g., ofKind("CK_NullToPointer"). |
| 4492 | AST_MATCHER_P(CastExpr, hasCastKind, CastKind, Kind) { |
| 4493 | return Node.getCastKind() == Kind; |
| 4494 | } |
| 4495 | |
| 4496 | /// Matches casts whose destination type matches a given matcher. |
| 4497 | /// |
| 4498 | /// (Note: Clang's AST refers to other conversions as "casts" too, and calls |
| 4499 | /// actual casts "explicit" casts.) |
| 4500 | AST_MATCHER_P(ExplicitCastExpr, hasDestinationType, |
| 4501 | internal::Matcher<QualType>, InnerMatcher) { |
| 4502 | const QualType NodeType = Node.getTypeAsWritten(); |
| 4503 | return InnerMatcher.matches(NodeType, Finder, Builder); |
| 4504 | } |
| 4505 | |
| 4506 | /// Matches implicit casts whose destination type matches a given |
| 4507 | /// matcher. |
| 4508 | /// |
| 4509 | /// FIXME: Unit test this matcher |
| 4510 | AST_MATCHER_P(ImplicitCastExpr, hasImplicitDestinationType, |
| 4511 | internal::Matcher<QualType>, InnerMatcher) { |
| 4512 | return InnerMatcher.matches(Node.getType(), Finder, Builder); |
| 4513 | } |
| 4514 | |
| 4515 | /// Matches RecordDecl object that are spelled with "struct." |
| 4516 | /// |
| 4517 | /// Example matches S, but not C or U. |
| 4518 | /// \code |
| 4519 | /// struct S {}; |
| 4520 | /// class C {}; |
| 4521 | /// union U {}; |
| 4522 | /// \endcode |
| 4523 | AST_MATCHER(RecordDecl, isStruct) { |
| 4524 | return Node.isStruct(); |
| 4525 | } |
| 4526 | |
| 4527 | /// Matches RecordDecl object that are spelled with "union." |
| 4528 | /// |
| 4529 | /// Example matches U, but not C or S. |
| 4530 | /// \code |
| 4531 | /// struct S {}; |
| 4532 | /// class C {}; |
| 4533 | /// union U {}; |
| 4534 | /// \endcode |
| 4535 | AST_MATCHER(RecordDecl, isUnion) { |
| 4536 | return Node.isUnion(); |
| 4537 | } |
| 4538 | |
| 4539 | /// Matches RecordDecl object that are spelled with "class." |
| 4540 | /// |
| 4541 | /// Example matches C, but not S or U. |
| 4542 | /// \code |
| 4543 | /// struct S {}; |
| 4544 | /// class C {}; |
| 4545 | /// union U {}; |
| 4546 | /// \endcode |
| 4547 | AST_MATCHER(RecordDecl, isClass) { |
| 4548 | return Node.isClass(); |
| 4549 | } |
| 4550 | |
| 4551 | /// Matches the true branch expression of a conditional operator. |
| 4552 | /// |
| 4553 | /// Example 1 (conditional ternary operator): matches a |
| 4554 | /// \code |
| 4555 | /// condition ? a : b |
| 4556 | /// \endcode |
| 4557 | /// |
| 4558 | /// Example 2 (conditional binary operator): matches opaqueValueExpr(condition) |
| 4559 | /// \code |
| 4560 | /// condition ?: b |
| 4561 | /// \endcode |
| 4562 | AST_MATCHER_P(AbstractConditionalOperator, hasTrueExpression, |
| 4563 | internal::Matcher<Expr>, InnerMatcher) { |
| 4564 | const Expr *Expression = Node.getTrueExpr(); |
| 4565 | return (Expression != nullptr && |
| 4566 | InnerMatcher.matches(*Expression, Finder, Builder)); |
| 4567 | } |
| 4568 | |
| 4569 | /// Matches the false branch expression of a conditional operator |
| 4570 | /// (binary or ternary). |
| 4571 | /// |
| 4572 | /// Example matches b |
| 4573 | /// \code |
| 4574 | /// condition ? a : b |
| 4575 | /// condition ?: b |
| 4576 | /// \endcode |
| 4577 | AST_MATCHER_P(AbstractConditionalOperator, hasFalseExpression, |
| 4578 | internal::Matcher<Expr>, InnerMatcher) { |
| 4579 | const Expr *Expression = Node.getFalseExpr(); |
| 4580 | return (Expression != nullptr && |
| 4581 | InnerMatcher.matches(*Expression, Finder, Builder)); |
| 4582 | } |
| 4583 | |
| 4584 | /// Matches if a declaration has a body attached. |
| 4585 | /// |
| 4586 | /// Example matches A, va, fa |
| 4587 | /// \code |
| 4588 | /// class A {}; |
| 4589 | /// class B; // Doesn't match, as it has no body. |
| 4590 | /// int va; |
| 4591 | /// extern int vb; // Doesn't match, as it doesn't define the variable. |
| 4592 | /// void fa() {} |
| 4593 | /// void fb(); // Doesn't match, as it has no body. |
| 4594 | /// @interface X |
| 4595 | /// - (void)ma; // Doesn't match, interface is declaration. |
| 4596 | /// @end |
| 4597 | /// @implementation X |
| 4598 | /// - (void)ma {} |
| 4599 | /// @end |
| 4600 | /// \endcode |
| 4601 | /// |
| 4602 | /// Usable as: Matcher<TagDecl>, Matcher<VarDecl>, Matcher<FunctionDecl>, |
| 4603 | /// Matcher<ObjCMethodDecl> |
| 4604 | AST_POLYMORPHIC_MATCHER(isDefinition, |
| 4605 | AST_POLYMORPHIC_SUPPORTED_TYPES(TagDecl, VarDecl, |
| 4606 | ObjCMethodDecl, |
| 4607 | FunctionDecl)) { |
| 4608 | return Node.isThisDeclarationADefinition(); |
| 4609 | } |
| 4610 | |
| 4611 | /// Matches if a function declaration is variadic. |
| 4612 | /// |
| 4613 | /// Example matches f, but not g or h. The function i will not match, even when |
| 4614 | /// compiled in C mode. |
| 4615 | /// \code |
| 4616 | /// void f(...); |
| 4617 | /// void g(int); |
| 4618 | /// template <typename... Ts> void h(Ts...); |
| 4619 | /// void i(); |
| 4620 | /// \endcode |
| 4621 | AST_MATCHER(FunctionDecl, isVariadic) { |
| 4622 | return Node.isVariadic(); |
| 4623 | } |
| 4624 | |
| 4625 | /// Matches the class declaration that the given method declaration |
| 4626 | /// belongs to. |
| 4627 | /// |
| 4628 | /// FIXME: Generalize this for other kinds of declarations. |
| 4629 | /// FIXME: What other kind of declarations would we need to generalize |
| 4630 | /// this to? |
| 4631 | /// |
| 4632 | /// Example matches A() in the last line |
| 4633 | /// (matcher = cxxConstructExpr(hasDeclaration(cxxMethodDecl( |
| 4634 | /// ofClass(hasName("A")))))) |
| 4635 | /// \code |
| 4636 | /// class A { |
| 4637 | /// public: |
| 4638 | /// A(); |
| 4639 | /// }; |
| 4640 | /// A a = A(); |
| 4641 | /// \endcode |
| 4642 | AST_MATCHER_P(CXXMethodDecl, ofClass, |
| 4643 | internal::Matcher<CXXRecordDecl>, InnerMatcher) { |
| 4644 | const CXXRecordDecl *Parent = Node.getParent(); |
| 4645 | return (Parent != nullptr && |
| 4646 | InnerMatcher.matches(*Parent, Finder, Builder)); |
| 4647 | } |
| 4648 | |
| 4649 | /// Matches each method overridden by the given method. This matcher may |
| 4650 | /// produce multiple matches. |
| 4651 | /// |
| 4652 | /// Given |
| 4653 | /// \code |
| 4654 | /// class A { virtual void f(); }; |
| 4655 | /// class B : public A { void f(); }; |
| 4656 | /// class C : public B { void f(); }; |
| 4657 | /// \endcode |
| 4658 | /// cxxMethodDecl(ofClass(hasName("C")), |
| 4659 | /// forEachOverridden(cxxMethodDecl().bind("b"))).bind("d") |
| 4660 | /// matches once, with "b" binding "A::f" and "d" binding "C::f" (Note |
| 4661 | /// that B::f is not overridden by C::f). |
| 4662 | /// |
| 4663 | /// The check can produce multiple matches in case of multiple inheritance, e.g. |
| 4664 | /// \code |
| 4665 | /// class A1 { virtual void f(); }; |
| 4666 | /// class A2 { virtual void f(); }; |
| 4667 | /// class C : public A1, public A2 { void f(); }; |
| 4668 | /// \endcode |
| 4669 | /// cxxMethodDecl(ofClass(hasName("C")), |
| 4670 | /// forEachOverridden(cxxMethodDecl().bind("b"))).bind("d") |
| 4671 | /// matches twice, once with "b" binding "A1::f" and "d" binding "C::f", and |
| 4672 | /// once with "b" binding "A2::f" and "d" binding "C::f". |
| 4673 | AST_MATCHER_P(CXXMethodDecl, forEachOverridden, |
| 4674 | internal::Matcher<CXXMethodDecl>, InnerMatcher) { |
| 4675 | BoundNodesTreeBuilder Result; |
| 4676 | bool Matched = false; |
| 4677 | for (const auto *Overridden : Node.overridden_methods()) { |
| 4678 | BoundNodesTreeBuilder OverriddenBuilder(*Builder); |
| 4679 | const bool OverriddenMatched = |
| 4680 | InnerMatcher.matches(*Overridden, Finder, &OverriddenBuilder); |
| 4681 | if (OverriddenMatched) { |
| 4682 | Matched = true; |
| 4683 | Result.addMatch(OverriddenBuilder); |
| 4684 | } |
| 4685 | } |
| 4686 | *Builder = std::move(Result); |
| 4687 | return Matched; |
| 4688 | } |
| 4689 | |
| 4690 | /// Matches if the given method declaration is virtual. |
| 4691 | /// |
| 4692 | /// Given |
| 4693 | /// \code |
| 4694 | /// class A { |
| 4695 | /// public: |
| 4696 | /// virtual void x(); |
| 4697 | /// }; |
| 4698 | /// \endcode |
| 4699 | /// matches A::x |
| 4700 | AST_MATCHER(CXXMethodDecl, isVirtual) { |
| 4701 | return Node.isVirtual(); |
| 4702 | } |
| 4703 | |
| 4704 | /// Matches if the given method declaration has an explicit "virtual". |
| 4705 | /// |
| 4706 | /// Given |
| 4707 | /// \code |
| 4708 | /// class A { |
| 4709 | /// public: |
| 4710 | /// virtual void x(); |
| 4711 | /// }; |
| 4712 | /// class B : public A { |
| 4713 | /// public: |
| 4714 | /// void x(); |
| 4715 | /// }; |
| 4716 | /// \endcode |
| 4717 | /// matches A::x but not B::x |
| 4718 | AST_MATCHER(CXXMethodDecl, isVirtualAsWritten) { |
| 4719 | return Node.isVirtualAsWritten(); |
| 4720 | } |
| 4721 | |
| 4722 | /// Matches if the given method or class declaration is final. |
| 4723 | /// |
| 4724 | /// Given: |
| 4725 | /// \code |
| 4726 | /// class A final {}; |
| 4727 | /// |
| 4728 | /// struct B { |
| 4729 | /// virtual void f(); |
| 4730 | /// }; |
| 4731 | /// |
| 4732 | /// struct C : B { |
| 4733 | /// void f() final; |
| 4734 | /// }; |
| 4735 | /// \endcode |
| 4736 | /// matches A and C::f, but not B, C, or B::f |
| 4737 | AST_POLYMORPHIC_MATCHER(isFinal, |
| 4738 | AST_POLYMORPHIC_SUPPORTED_TYPES(CXXRecordDecl, |
| 4739 | CXXMethodDecl)) { |
| 4740 | return Node.template hasAttr<FinalAttr>(); |
| 4741 | } |
| 4742 | |
| 4743 | /// Matches if the given method declaration is pure. |
| 4744 | /// |
| 4745 | /// Given |
| 4746 | /// \code |
| 4747 | /// class A { |
| 4748 | /// public: |
| 4749 | /// virtual void x() = 0; |
| 4750 | /// }; |
| 4751 | /// \endcode |
| 4752 | /// matches A::x |
| 4753 | AST_MATCHER(CXXMethodDecl, isPure) { |
| 4754 | return Node.isPure(); |
| 4755 | } |
| 4756 | |
| 4757 | /// Matches if the given method declaration is const. |
| 4758 | /// |
| 4759 | /// Given |
| 4760 | /// \code |
| 4761 | /// struct A { |
| 4762 | /// void foo() const; |
| 4763 | /// void bar(); |
| 4764 | /// }; |
| 4765 | /// \endcode |
| 4766 | /// |
| 4767 | /// cxxMethodDecl(isConst()) matches A::foo() but not A::bar() |
| 4768 | AST_MATCHER(CXXMethodDecl, isConst) { |
| 4769 | return Node.isConst(); |
| 4770 | } |
| 4771 | |
| 4772 | /// Matches if the given method declaration declares a copy assignment |
| 4773 | /// operator. |
| 4774 | /// |
| 4775 | /// Given |
| 4776 | /// \code |
| 4777 | /// struct A { |
| 4778 | /// A &operator=(const A &); |
| 4779 | /// A &operator=(A &&); |
| 4780 | /// }; |
| 4781 | /// \endcode |
| 4782 | /// |
| 4783 | /// cxxMethodDecl(isCopyAssignmentOperator()) matches the first method but not |
| 4784 | /// the second one. |
| 4785 | AST_MATCHER(CXXMethodDecl, isCopyAssignmentOperator) { |
| 4786 | return Node.isCopyAssignmentOperator(); |
| 4787 | } |
| 4788 | |
| 4789 | /// Matches if the given method declaration declares a move assignment |
| 4790 | /// operator. |
| 4791 | /// |
| 4792 | /// Given |
| 4793 | /// \code |
| 4794 | /// struct A { |
| 4795 | /// A &operator=(const A &); |
| 4796 | /// A &operator=(A &&); |
| 4797 | /// }; |
| 4798 | /// \endcode |
| 4799 | /// |
| 4800 | /// cxxMethodDecl(isMoveAssignmentOperator()) matches the second method but not |
| 4801 | /// the first one. |
| 4802 | AST_MATCHER(CXXMethodDecl, isMoveAssignmentOperator) { |
| 4803 | return Node.isMoveAssignmentOperator(); |
| 4804 | } |
| 4805 | |
| 4806 | /// Matches if the given method declaration overrides another method. |
| 4807 | /// |
| 4808 | /// Given |
| 4809 | /// \code |
| 4810 | /// class A { |
| 4811 | /// public: |
| 4812 | /// virtual void x(); |
| 4813 | /// }; |
| 4814 | /// class B : public A { |
| 4815 | /// public: |
| 4816 | /// virtual void x(); |
| 4817 | /// }; |
| 4818 | /// \endcode |
| 4819 | /// matches B::x |
| 4820 | AST_MATCHER(CXXMethodDecl, isOverride) { |
| 4821 | return Node.size_overridden_methods() > 0 || Node.hasAttr<OverrideAttr>(); |
| 4822 | } |
| 4823 | |
| 4824 | /// Matches method declarations that are user-provided. |
| 4825 | /// |
| 4826 | /// Given |
| 4827 | /// \code |
| 4828 | /// struct S { |
| 4829 | /// S(); // #1 |
| 4830 | /// S(const S &) = default; // #2 |
| 4831 | /// S(S &&) = delete; // #3 |
| 4832 | /// }; |
| 4833 | /// \endcode |
| 4834 | /// cxxConstructorDecl(isUserProvided()) will match #1, but not #2 or #3. |
| 4835 | AST_MATCHER(CXXMethodDecl, isUserProvided) { |
| 4836 | return Node.isUserProvided(); |
| 4837 | } |
| 4838 | |
| 4839 | /// Matches member expressions that are called with '->' as opposed |
| 4840 | /// to '.'. |
| 4841 | /// |
| 4842 | /// Member calls on the implicit this pointer match as called with '->'. |
| 4843 | /// |
| 4844 | /// Given |
| 4845 | /// \code |
| 4846 | /// class Y { |
| 4847 | /// void x() { this->x(); x(); Y y; y.x(); a; this->b; Y::b; } |
| 4848 | /// template <class T> void f() { this->f<T>(); f<T>(); } |
| 4849 | /// int a; |
| 4850 | /// static int b; |
| 4851 | /// }; |
| 4852 | /// template <class T> |
| 4853 | /// class Z { |
| 4854 | /// void x() { this->m; } |
| 4855 | /// }; |
| 4856 | /// \endcode |
| 4857 | /// memberExpr(isArrow()) |
| 4858 | /// matches this->x, x, y.x, a, this->b |
| 4859 | /// cxxDependentScopeMemberExpr(isArrow()) |
| 4860 | /// matches this->m |
| 4861 | /// unresolvedMemberExpr(isArrow()) |
| 4862 | /// matches this->f<T>, f<T> |
| 4863 | AST_POLYMORPHIC_MATCHER( |
| 4864 | isArrow, AST_POLYMORPHIC_SUPPORTED_TYPES(MemberExpr, UnresolvedMemberExpr, |
| 4865 | CXXDependentScopeMemberExpr)) { |
| 4866 | return Node.isArrow(); |
| 4867 | } |
| 4868 | |
| 4869 | /// Matches QualType nodes that are of integer type. |
| 4870 | /// |
| 4871 | /// Given |
| 4872 | /// \code |
| 4873 | /// void a(int); |
| 4874 | /// void b(long); |
| 4875 | /// void c(double); |
| 4876 | /// \endcode |
| 4877 | /// functionDecl(hasAnyParameter(hasType(isInteger()))) |
| 4878 | /// matches "a(int)", "b(long)", but not "c(double)". |
| 4879 | AST_MATCHER(QualType, isInteger) { |
| 4880 | return Node->isIntegerType(); |
| 4881 | } |
| 4882 | |
| 4883 | /// Matches QualType nodes that are of unsigned integer type. |
| 4884 | /// |
| 4885 | /// Given |
| 4886 | /// \code |
| 4887 | /// void a(int); |
| 4888 | /// void b(unsigned long); |
| 4889 | /// void c(double); |
| 4890 | /// \endcode |
| 4891 | /// functionDecl(hasAnyParameter(hasType(isUnsignedInteger()))) |
| 4892 | /// matches "b(unsigned long)", but not "a(int)" and "c(double)". |
| 4893 | AST_MATCHER(QualType, isUnsignedInteger) { |
| 4894 | return Node->isUnsignedIntegerType(); |
| 4895 | } |
| 4896 | |
| 4897 | /// Matches QualType nodes that are of signed integer type. |
| 4898 | /// |
| 4899 | /// Given |
| 4900 | /// \code |
| 4901 | /// void a(int); |
| 4902 | /// void b(unsigned long); |
| 4903 | /// void c(double); |
| 4904 | /// \endcode |
| 4905 | /// functionDecl(hasAnyParameter(hasType(isSignedInteger()))) |
| 4906 | /// matches "a(int)", but not "b(unsigned long)" and "c(double)". |
| 4907 | AST_MATCHER(QualType, isSignedInteger) { |
| 4908 | return Node->isSignedIntegerType(); |
| 4909 | } |
| 4910 | |
| 4911 | /// Matches QualType nodes that are of character type. |
| 4912 | /// |
| 4913 | /// Given |
| 4914 | /// \code |
| 4915 | /// void a(char); |
| 4916 | /// void b(wchar_t); |
| 4917 | /// void c(double); |
| 4918 | /// \endcode |
| 4919 | /// functionDecl(hasAnyParameter(hasType(isAnyCharacter()))) |
| 4920 | /// matches "a(char)", "b(wchar_t)", but not "c(double)". |
| 4921 | AST_MATCHER(QualType, isAnyCharacter) { |
| 4922 | return Node->isAnyCharacterType(); |
| 4923 | } |
| 4924 | |
| 4925 | /// Matches QualType nodes that are of any pointer type; this includes |
| 4926 | /// the Objective-C object pointer type, which is different despite being |
| 4927 | /// syntactically similar. |
| 4928 | /// |
| 4929 | /// Given |
| 4930 | /// \code |
| 4931 | /// int *i = nullptr; |
| 4932 | /// |
| 4933 | /// @interface Foo |
| 4934 | /// @end |
| 4935 | /// Foo *f; |
| 4936 | /// |
| 4937 | /// int j; |
| 4938 | /// \endcode |
| 4939 | /// varDecl(hasType(isAnyPointer())) |
| 4940 | /// matches "int *i" and "Foo *f", but not "int j". |
| 4941 | AST_MATCHER(QualType, isAnyPointer) { |
| 4942 | return Node->isAnyPointerType(); |
| 4943 | } |
| 4944 | |
| 4945 | /// Matches QualType nodes that are const-qualified, i.e., that |
| 4946 | /// include "top-level" const. |
| 4947 | /// |
| 4948 | /// Given |
| 4949 | /// \code |
| 4950 | /// void a(int); |
| 4951 | /// void b(int const); |
| 4952 | /// void c(const int); |
| 4953 | /// void d(const int*); |
| 4954 | /// void e(int const) {}; |
| 4955 | /// \endcode |
| 4956 | /// functionDecl(hasAnyParameter(hasType(isConstQualified()))) |
| 4957 | /// matches "void b(int const)", "void c(const int)" and |
| 4958 | /// "void e(int const) {}". It does not match d as there |
| 4959 | /// is no top-level const on the parameter type "const int *". |
| 4960 | AST_MATCHER(QualType, isConstQualified) { |
| 4961 | return Node.isConstQualified(); |
| 4962 | } |
| 4963 | |
| 4964 | /// Matches QualType nodes that are volatile-qualified, i.e., that |
| 4965 | /// include "top-level" volatile. |
| 4966 | /// |
| 4967 | /// Given |
| 4968 | /// \code |
| 4969 | /// void a(int); |
| 4970 | /// void b(int volatile); |
| 4971 | /// void c(volatile int); |
| 4972 | /// void d(volatile int*); |
| 4973 | /// void e(int volatile) {}; |
| 4974 | /// \endcode |
| 4975 | /// functionDecl(hasAnyParameter(hasType(isVolatileQualified()))) |
| 4976 | /// matches "void b(int volatile)", "void c(volatile int)" and |
| 4977 | /// "void e(int volatile) {}". It does not match d as there |
| 4978 | /// is no top-level volatile on the parameter type "volatile int *". |
| 4979 | AST_MATCHER(QualType, isVolatileQualified) { |
| 4980 | return Node.isVolatileQualified(); |
| 4981 | } |
| 4982 | |
| 4983 | /// Matches QualType nodes that have local CV-qualifiers attached to |
| 4984 | /// the node, not hidden within a typedef. |
| 4985 | /// |
| 4986 | /// Given |
| 4987 | /// \code |
| 4988 | /// typedef const int const_int; |
| 4989 | /// const_int i; |
| 4990 | /// int *const j; |
| 4991 | /// int *volatile k; |
| 4992 | /// int m; |
| 4993 | /// \endcode |
| 4994 | /// \c varDecl(hasType(hasLocalQualifiers())) matches only \c j and \c k. |
| 4995 | /// \c i is const-qualified but the qualifier is not local. |
| 4996 | AST_MATCHER(QualType, hasLocalQualifiers) { |
| 4997 | return Node.hasLocalQualifiers(); |
| 4998 | } |
| 4999 | |
| 5000 | /// Matches a member expression where the member is matched by a |
| 5001 | /// given matcher. |
| 5002 | /// |
| 5003 | /// Given |
| 5004 | /// \code |
| 5005 | /// struct { int first, second; } first, second; |
| 5006 | /// int i(second.first); |
| 5007 | /// int j(first.second); |
| 5008 | /// \endcode |
| 5009 | /// memberExpr(member(hasName("first"))) |
| 5010 | /// matches second.first |
| 5011 | /// but not first.second (because the member name there is "second"). |
| 5012 | AST_MATCHER_P(MemberExpr, member, |
| 5013 | internal::Matcher<ValueDecl>, InnerMatcher) { |
| 5014 | return InnerMatcher.matches(*Node.getMemberDecl(), Finder, Builder); |
| 5015 | } |
| 5016 | |
| 5017 | /// Matches a member expression where the object expression is matched by a |
| 5018 | /// given matcher. Implicit object expressions are included; that is, it matches |
| 5019 | /// use of implicit `this`. |
| 5020 | /// |
| 5021 | /// Given |
| 5022 | /// \code |
| 5023 | /// struct X { |
| 5024 | /// int m; |
| 5025 | /// int f(X x) { x.m; return m; } |
| 5026 | /// }; |
| 5027 | /// \endcode |
| 5028 | /// memberExpr(hasObjectExpression(hasType(cxxRecordDecl(hasName("X"))))) |
| 5029 | /// matches `x.m`, but not `m`; however, |
| 5030 | /// memberExpr(hasObjectExpression(hasType(pointsTo( |
| 5031 | // cxxRecordDecl(hasName("X")))))) |
| 5032 | /// matches `m` (aka. `this->m`), but not `x.m`. |
| 5033 | AST_POLYMORPHIC_MATCHER_P( |
| 5034 | hasObjectExpression, |
| 5035 | AST_POLYMORPHIC_SUPPORTED_TYPES(MemberExpr, UnresolvedMemberExpr, |
| 5036 | CXXDependentScopeMemberExpr), |
| 5037 | internal::Matcher<Expr>, InnerMatcher) { |
| 5038 | if (const auto *E = dyn_cast<UnresolvedMemberExpr>(&Node)) |
| 5039 | if (E->isImplicitAccess()) |
| 5040 | return false; |
| 5041 | if (const auto *E = dyn_cast<CXXDependentScopeMemberExpr>(&Node)) |
| 5042 | if (E->isImplicitAccess()) |
| 5043 | return false; |
| 5044 | return InnerMatcher.matches(*Node.getBase(), Finder, Builder); |
| 5045 | } |
| 5046 | |
| 5047 | /// Matches any using shadow declaration. |
| 5048 | /// |
| 5049 | /// Given |
| 5050 | /// \code |
| 5051 | /// namespace X { void b(); } |
| 5052 | /// using X::b; |
| 5053 | /// \endcode |
| 5054 | /// usingDecl(hasAnyUsingShadowDecl(hasName("b")))) |
| 5055 | /// matches \code using X::b \endcode |
| 5056 | AST_MATCHER_P(UsingDecl, hasAnyUsingShadowDecl, |
| 5057 | internal::Matcher<UsingShadowDecl>, InnerMatcher) { |
| 5058 | return matchesFirstInPointerRange(InnerMatcher, Node.shadow_begin(), |
| 5059 | Node.shadow_end(), Finder, Builder); |
| 5060 | } |
| 5061 | |
| 5062 | /// Matches a using shadow declaration where the target declaration is |
| 5063 | /// matched by the given matcher. |
| 5064 | /// |
| 5065 | /// Given |
| 5066 | /// \code |
| 5067 | /// namespace X { int a; void b(); } |
| 5068 | /// using X::a; |
| 5069 | /// using X::b; |
| 5070 | /// \endcode |
| 5071 | /// usingDecl(hasAnyUsingShadowDecl(hasTargetDecl(functionDecl()))) |
| 5072 | /// matches \code using X::b \endcode |
| 5073 | /// but not \code using X::a \endcode |
| 5074 | AST_MATCHER_P(UsingShadowDecl, hasTargetDecl, |
| 5075 | internal::Matcher<NamedDecl>, InnerMatcher) { |
| 5076 | return InnerMatcher.matches(*Node.getTargetDecl(), Finder, Builder); |
| 5077 | } |
| 5078 | |
| 5079 | /// Matches template instantiations of function, class, or static |
| 5080 | /// member variable template instantiations. |
| 5081 | /// |
| 5082 | /// Given |
| 5083 | /// \code |
| 5084 | /// template <typename T> class X {}; class A {}; X<A> x; |
| 5085 | /// \endcode |
| 5086 | /// or |
| 5087 | /// \code |
| 5088 | /// template <typename T> class X {}; class A {}; template class X<A>; |
| 5089 | /// \endcode |
| 5090 | /// or |
| 5091 | /// \code |
| 5092 | /// template <typename T> class X {}; class A {}; extern template class X<A>; |
| 5093 | /// \endcode |
| 5094 | /// cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) |
| 5095 | /// matches the template instantiation of X<A>. |
| 5096 | /// |
| 5097 | /// But given |
| 5098 | /// \code |
| 5099 | /// template <typename T> class X {}; class A {}; |
| 5100 | /// template <> class X<A> {}; X<A> x; |
| 5101 | /// \endcode |
| 5102 | /// cxxRecordDecl(hasName("::X"), isTemplateInstantiation()) |
| 5103 | /// does not match, as X<A> is an explicit template specialization. |
| 5104 | /// |
| 5105 | /// Usable as: Matcher<FunctionDecl>, Matcher<VarDecl>, Matcher<CXXRecordDecl> |
| 5106 | AST_POLYMORPHIC_MATCHER(isTemplateInstantiation, |
| 5107 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, VarDecl, |
| 5108 | CXXRecordDecl)) { |
| 5109 | return (Node.getTemplateSpecializationKind() == TSK_ImplicitInstantiation || |
| 5110 | Node.getTemplateSpecializationKind() == |
| 5111 | TSK_ExplicitInstantiationDefinition || |
| 5112 | Node.getTemplateSpecializationKind() == |
| 5113 | TSK_ExplicitInstantiationDeclaration); |
| 5114 | } |
| 5115 | |
| 5116 | /// Matches declarations that are template instantiations or are inside |
| 5117 | /// template instantiations. |
| 5118 | /// |
| 5119 | /// Given |
| 5120 | /// \code |
| 5121 | /// template<typename T> void A(T t) { T i; } |
| 5122 | /// A(0); |
| 5123 | /// A(0U); |
| 5124 | /// \endcode |
| 5125 | /// functionDecl(isInstantiated()) |
| 5126 | /// matches 'A(int) {...};' and 'A(unsigned) {...}'. |
| 5127 | AST_MATCHER_FUNCTION(internal::Matcher<Decl>, isInstantiated) { |
| 5128 | auto IsInstantiation = decl(anyOf(cxxRecordDecl(isTemplateInstantiation()), |
| 5129 | functionDecl(isTemplateInstantiation()))); |
| 5130 | return decl(anyOf(IsInstantiation, hasAncestor(IsInstantiation))); |
| 5131 | } |
| 5132 | |
| 5133 | /// Matches statements inside of a template instantiation. |
| 5134 | /// |
| 5135 | /// Given |
| 5136 | /// \code |
| 5137 | /// int j; |
| 5138 | /// template<typename T> void A(T t) { T i; j += 42;} |
| 5139 | /// A(0); |
| 5140 | /// A(0U); |
| 5141 | /// \endcode |
| 5142 | /// declStmt(isInTemplateInstantiation()) |
| 5143 | /// matches 'int i;' and 'unsigned i'. |
| 5144 | /// unless(stmt(isInTemplateInstantiation())) |
| 5145 | /// will NOT match j += 42; as it's shared between the template definition and |
| 5146 | /// instantiation. |
| 5147 | AST_MATCHER_FUNCTION(internal::Matcher<Stmt>, isInTemplateInstantiation) { |
| 5148 | return stmt( |
| 5149 | hasAncestor(decl(anyOf(cxxRecordDecl(isTemplateInstantiation()), |
| 5150 | functionDecl(isTemplateInstantiation()))))); |
| 5151 | } |
| 5152 | |
| 5153 | /// Matches explicit template specializations of function, class, or |
| 5154 | /// static member variable template instantiations. |
| 5155 | /// |
| 5156 | /// Given |
| 5157 | /// \code |
| 5158 | /// template<typename T> void A(T t) { } |
| 5159 | /// template<> void A(int N) { } |
| 5160 | /// \endcode |
| 5161 | /// functionDecl(isExplicitTemplateSpecialization()) |
| 5162 | /// matches the specialization A<int>(). |
| 5163 | /// |
| 5164 | /// Usable as: Matcher<FunctionDecl>, Matcher<VarDecl>, Matcher<CXXRecordDecl> |
| 5165 | AST_POLYMORPHIC_MATCHER(isExplicitTemplateSpecialization, |
| 5166 | AST_POLYMORPHIC_SUPPORTED_TYPES(FunctionDecl, VarDecl, |
| 5167 | CXXRecordDecl)) { |
| 5168 | return (Node.getTemplateSpecializationKind() == TSK_ExplicitSpecialization); |
| 5169 | } |
| 5170 | |
| 5171 | /// Matches \c TypeLocs for which the given inner |
| 5172 | /// QualType-matcher matches. |
| 5173 | AST_MATCHER_FUNCTION_P_OVERLOAD(internal::BindableMatcher<TypeLoc>, loc, |
| 5174 | internal::Matcher<QualType>, InnerMatcher, 0) { |
| 5175 | return internal::BindableMatcher<TypeLoc>( |
| 5176 | new internal::TypeLocTypeMatcher(InnerMatcher)); |
| 5177 | } |
| 5178 | |
| 5179 | /// Matches type \c bool. |
| 5180 | /// |
| 5181 | /// Given |
| 5182 | /// \code |
| 5183 | /// struct S { bool func(); }; |
| 5184 | /// \endcode |
| 5185 | /// functionDecl(returns(booleanType())) |
| 5186 | /// matches "bool func();" |
| 5187 | AST_MATCHER(Type, booleanType) { |
| 5188 | return Node.isBooleanType(); |
| 5189 | } |
| 5190 | |
| 5191 | /// Matches type \c void. |
| 5192 | /// |
| 5193 | /// Given |
| 5194 | /// \code |
| 5195 | /// struct S { void func(); }; |
| 5196 | /// \endcode |
| 5197 | /// functionDecl(returns(voidType())) |
| 5198 | /// matches "void func();" |
| 5199 | AST_MATCHER(Type, voidType) { |
| 5200 | return Node.isVoidType(); |
| 5201 | } |
| 5202 | |
| 5203 | template <typename NodeType> |
| 5204 | using AstTypeMatcher = internal::VariadicDynCastAllOfMatcher<Type, NodeType>; |
| 5205 | |
| 5206 | /// Matches builtin Types. |
| 5207 | /// |
| 5208 | /// Given |
| 5209 | /// \code |
| 5210 | /// struct A {}; |
| 5211 | /// A a; |
| 5212 | /// int b; |
| 5213 | /// float c; |
| 5214 | /// bool d; |
| 5215 | /// \endcode |
| 5216 | /// builtinType() |
| 5217 | /// matches "int b", "float c" and "bool d" |
| 5218 | extern const AstTypeMatcher<BuiltinType> builtinType; |
| 5219 | |
| 5220 | /// Matches all kinds of arrays. |
| 5221 | /// |
| 5222 | /// Given |
| 5223 | /// \code |
| 5224 | /// int a[] = { 2, 3 }; |
| 5225 | /// int b[4]; |
| 5226 | /// void f() { int c[a[0]]; } |
| 5227 | /// \endcode |
| 5228 | /// arrayType() |
| 5229 | /// matches "int a[]", "int b[4]" and "int c[a[0]]"; |
| 5230 | extern const AstTypeMatcher<ArrayType> arrayType; |
| 5231 | |
| 5232 | /// Matches C99 complex types. |
| 5233 | /// |
| 5234 | /// Given |
| 5235 | /// \code |
| 5236 | /// _Complex float f; |
| 5237 | /// \endcode |
| 5238 | /// complexType() |
| 5239 | /// matches "_Complex float f" |
| 5240 | extern const AstTypeMatcher<ComplexType> complexType; |
| 5241 | |
| 5242 | /// Matches any real floating-point type (float, double, long double). |
| 5243 | /// |
| 5244 | /// Given |
| 5245 | /// \code |
| 5246 | /// int i; |
| 5247 | /// float f; |
| 5248 | /// \endcode |
| 5249 | /// realFloatingPointType() |
| 5250 | /// matches "float f" but not "int i" |
| 5251 | AST_MATCHER(Type, realFloatingPointType) { |
| 5252 | return Node.isRealFloatingType(); |
| 5253 | } |
| 5254 | |
| 5255 | /// Matches arrays and C99 complex types that have a specific element |
| 5256 | /// type. |
| 5257 | /// |
| 5258 | /// Given |
| 5259 | /// \code |
| 5260 | /// struct A {}; |
| 5261 | /// A a[7]; |
| 5262 | /// int b[7]; |
| 5263 | /// \endcode |
| 5264 | /// arrayType(hasElementType(builtinType())) |
| 5265 | /// matches "int b[7]" |
| 5266 | /// |
| 5267 | /// Usable as: Matcher<ArrayType>, Matcher<ComplexType> |
| 5268 | AST_TYPELOC_TRAVERSE_MATCHER_DECL(hasElementType, getElement, |
| 5269 | AST_POLYMORPHIC_SUPPORTED_TYPES(ArrayType, |
| 5270 | ComplexType)); |
| 5271 | |
| 5272 | /// Matches C arrays with a specified constant size. |
| 5273 | /// |
| 5274 | /// Given |
| 5275 | /// \code |
| 5276 | /// void() { |
| 5277 | /// int a[2]; |
| 5278 | /// int b[] = { 2, 3 }; |
| 5279 | /// int c[b[0]]; |
| 5280 | /// } |
| 5281 | /// \endcode |
| 5282 | /// constantArrayType() |
| 5283 | /// matches "int a[2]" |
| 5284 | extern const AstTypeMatcher<ConstantArrayType> constantArrayType; |
| 5285 | |
| 5286 | /// Matches nodes that have the specified size. |
| 5287 | /// |
| 5288 | /// Given |
| 5289 | /// \code |
| 5290 | /// int a[42]; |
| 5291 | /// int b[2 * 21]; |
| 5292 | /// int c[41], d[43]; |
| 5293 | /// char *s = "abcd"; |
| 5294 | /// wchar_t *ws = L"abcd"; |
| 5295 | /// char *w = "a"; |
| 5296 | /// \endcode |
| 5297 | /// constantArrayType(hasSize(42)) |
| 5298 | /// matches "int a[42]" and "int b[2 * 21]" |
| 5299 | /// stringLiteral(hasSize(4)) |
| 5300 | /// matches "abcd", L"abcd" |
| 5301 | AST_POLYMORPHIC_MATCHER_P(hasSize, |
| 5302 | AST_POLYMORPHIC_SUPPORTED_TYPES(ConstantArrayType, |
| 5303 | StringLiteral), |
| 5304 | unsigned, N) { |
| 5305 | return internal::HasSizeMatcher<NodeType>::hasSize(Node, N); |
| 5306 | } |
| 5307 | |
| 5308 | /// Matches C++ arrays whose size is a value-dependent expression. |
| 5309 | /// |
| 5310 | /// Given |
| 5311 | /// \code |
| 5312 | /// template<typename T, int Size> |
| 5313 | /// class array { |
| 5314 | /// T data[Size]; |
| 5315 | /// }; |
| 5316 | /// \endcode |
| 5317 | /// dependentSizedArrayType |
| 5318 | /// matches "T data[Size]" |
| 5319 | extern const AstTypeMatcher<DependentSizedArrayType> dependentSizedArrayType; |
| 5320 | |
| 5321 | /// Matches C arrays with unspecified size. |
| 5322 | /// |
| 5323 | /// Given |
| 5324 | /// \code |
| 5325 | /// int a[] = { 2, 3 }; |
| 5326 | /// int b[42]; |
| 5327 | /// void f(int c[]) { int d[a[0]]; }; |
| 5328 | /// \endcode |
| 5329 | /// incompleteArrayType() |
| 5330 | /// matches "int a[]" and "int c[]" |
| 5331 | extern const AstTypeMatcher<IncompleteArrayType> incompleteArrayType; |
| 5332 | |
| 5333 | /// Matches C arrays with a specified size that is not an |
| 5334 | /// integer-constant-expression. |
| 5335 | /// |
| 5336 | /// Given |
| 5337 | /// \code |
| 5338 | /// void f() { |
| 5339 | /// int a[] = { 2, 3 } |
| 5340 | /// int b[42]; |
| 5341 | /// int c[a[0]]; |
| 5342 | /// } |
| 5343 | /// \endcode |
| 5344 | /// variableArrayType() |
| 5345 | /// matches "int c[a[0]]" |
| 5346 | extern const AstTypeMatcher<VariableArrayType> variableArrayType; |
| 5347 | |
| 5348 | /// Matches \c VariableArrayType nodes that have a specific size |
| 5349 | /// expression. |
| 5350 | /// |
| 5351 | /// Given |
| 5352 | /// \code |
| 5353 | /// void f(int b) { |
| 5354 | /// int a[b]; |
| 5355 | /// } |
| 5356 | /// \endcode |
| 5357 | /// variableArrayType(hasSizeExpr(ignoringImpCasts(declRefExpr(to( |
| 5358 | /// varDecl(hasName("b"))))))) |
| 5359 | /// matches "int a[b]" |
| 5360 | AST_MATCHER_P(VariableArrayType, hasSizeExpr, |
| 5361 | internal::Matcher<Expr>, InnerMatcher) { |
| 5362 | return InnerMatcher.matches(*Node.getSizeExpr(), Finder, Builder); |
| 5363 | } |
| 5364 | |
| 5365 | /// Matches atomic types. |
| 5366 | /// |
| 5367 | /// Given |
| 5368 | /// \code |
| 5369 | /// _Atomic(int) i; |
| 5370 | /// \endcode |
| 5371 | /// atomicType() |
| 5372 | /// matches "_Atomic(int) i" |
| 5373 | extern const AstTypeMatcher<AtomicType> atomicType; |
| 5374 | |
| 5375 | /// Matches atomic types with a specific value type. |
| 5376 | /// |
| 5377 | /// Given |
| 5378 | /// \code |
| 5379 | /// _Atomic(int) i; |
| 5380 | /// _Atomic(float) f; |
| 5381 | /// \endcode |
| 5382 | /// atomicType(hasValueType(isInteger())) |
| 5383 | /// matches "_Atomic(int) i" |
| 5384 | /// |
| 5385 | /// Usable as: Matcher<AtomicType> |
| 5386 | AST_TYPELOC_TRAVERSE_MATCHER_DECL(hasValueType, getValue, |
| 5387 | AST_POLYMORPHIC_SUPPORTED_TYPES(AtomicType)); |
| 5388 | |
| 5389 | /// Matches types nodes representing C++11 auto types. |
| 5390 | /// |
| 5391 | /// Given: |
| 5392 | /// \code |
| 5393 | /// auto n = 4; |
| 5394 | /// int v[] = { 2, 3 } |
| 5395 | /// for (auto i : v) { } |
| 5396 | /// \endcode |
| 5397 | /// autoType() |
| 5398 | /// matches "auto n" and "auto i" |
| 5399 | extern const AstTypeMatcher<AutoType> autoType; |
| 5400 | |
| 5401 | /// Matches types nodes representing C++11 decltype(<expr>) types. |
| 5402 | /// |
| 5403 | /// Given: |
| 5404 | /// \code |
| 5405 | /// short i = 1; |
| 5406 | /// int j = 42; |
| 5407 | /// decltype(i + j) result = i + j; |
| 5408 | /// \endcode |
| 5409 | /// decltypeType() |
| 5410 | /// matches "decltype(i + j)" |
| 5411 | extern const AstTypeMatcher<DecltypeType> decltypeType; |
| 5412 | |
| 5413 | /// Matches \c AutoType nodes where the deduced type is a specific type. |
| 5414 | /// |
| 5415 | /// Note: There is no \c TypeLoc for the deduced type and thus no |
| 5416 | /// \c getDeducedLoc() matcher. |
| 5417 | /// |
| 5418 | /// Given |
| 5419 | /// \code |
| 5420 | /// auto a = 1; |
| 5421 | /// auto b = 2.0; |
| 5422 | /// \endcode |
| 5423 | /// autoType(hasDeducedType(isInteger())) |
| 5424 | /// matches "auto a" |
| 5425 | /// |
| 5426 | /// Usable as: Matcher<AutoType> |
| 5427 | AST_TYPE_TRAVERSE_MATCHER(hasDeducedType, getDeducedType, |
| 5428 | AST_POLYMORPHIC_SUPPORTED_TYPES(AutoType)); |
| 5429 | |
| 5430 | /// Matches \c DecltypeType nodes to find out the underlying type. |
| 5431 | /// |
| 5432 | /// Given |
| 5433 | /// \code |
| 5434 | /// decltype(1) a = 1; |
| 5435 | /// decltype(2.0) b = 2.0; |
| 5436 | /// \endcode |
| 5437 | /// decltypeType(hasUnderlyingType(isInteger())) |
| 5438 | /// matches the type of "a" |
| 5439 | /// |
| 5440 | /// Usable as: Matcher<DecltypeType> |
| 5441 | AST_TYPE_TRAVERSE_MATCHER(hasUnderlyingType, getUnderlyingType, |
| 5442 | AST_POLYMORPHIC_SUPPORTED_TYPES(DecltypeType)); |
| 5443 | |
| 5444 | /// Matches \c FunctionType nodes. |
| 5445 | /// |
| 5446 | /// Given |
| 5447 | /// \code |
| 5448 | /// int (*f)(int); |
| 5449 | /// void g(); |
| 5450 | /// \endcode |
| 5451 | /// functionType() |
| 5452 | /// matches "int (*f)(int)" and the type of "g". |
| 5453 | extern const AstTypeMatcher<FunctionType> functionType; |
| 5454 | |
| 5455 | /// Matches \c FunctionProtoType nodes. |
| 5456 | /// |
| 5457 | /// Given |
| 5458 | /// \code |
| 5459 | /// int (*f)(int); |
| 5460 | /// void g(); |
| 5461 | /// \endcode |
| 5462 | /// functionProtoType() |
| 5463 | /// matches "int (*f)(int)" and the type of "g" in C++ mode. |
| 5464 | /// In C mode, "g" is not matched because it does not contain a prototype. |
| 5465 | extern const AstTypeMatcher<FunctionProtoType> functionProtoType; |
| 5466 | |
| 5467 | /// Matches \c ParenType nodes. |
| 5468 | /// |
| 5469 | /// Given |
| 5470 | /// \code |
| 5471 | /// int (*ptr_to_array)[4]; |
| 5472 | /// int *array_of_ptrs[4]; |
| 5473 | /// \endcode |
| 5474 | /// |
| 5475 | /// \c varDecl(hasType(pointsTo(parenType()))) matches \c ptr_to_array but not |
| 5476 | /// \c array_of_ptrs. |
| 5477 | extern const AstTypeMatcher<ParenType> parenType; |
| 5478 | |
| 5479 | /// Matches \c ParenType nodes where the inner type is a specific type. |
| 5480 | /// |
| 5481 | /// Given |
| 5482 | /// \code |
| 5483 | /// int (*ptr_to_array)[4]; |
| 5484 | /// int (*ptr_to_func)(int); |
| 5485 | /// \endcode |
| 5486 | /// |
| 5487 | /// \c varDecl(hasType(pointsTo(parenType(innerType(functionType()))))) matches |
| 5488 | /// \c ptr_to_func but not \c ptr_to_array. |
| 5489 | /// |
| 5490 | /// Usable as: Matcher<ParenType> |
| 5491 | AST_TYPE_TRAVERSE_MATCHER(innerType, getInnerType, |
| 5492 | AST_POLYMORPHIC_SUPPORTED_TYPES(ParenType)); |
| 5493 | |
| 5494 | /// Matches block pointer types, i.e. types syntactically represented as |
| 5495 | /// "void (^)(int)". |
| 5496 | /// |
| 5497 | /// The \c pointee is always required to be a \c FunctionType. |
| 5498 | extern const AstTypeMatcher<BlockPointerType> blockPointerType; |
| 5499 | |
| 5500 | /// Matches member pointer types. |
| 5501 | /// Given |
| 5502 | /// \code |
| 5503 | /// struct A { int i; } |
| 5504 | /// A::* ptr = A::i; |
| 5505 | /// \endcode |
| 5506 | /// memberPointerType() |
| 5507 | /// matches "A::* ptr" |
| 5508 | extern const AstTypeMatcher<MemberPointerType> memberPointerType; |
| 5509 | |
| 5510 | /// Matches pointer types, but does not match Objective-C object pointer |
| 5511 | /// types. |
| 5512 | /// |
| 5513 | /// Given |
| 5514 | /// \code |
| 5515 | /// int *a; |
| 5516 | /// int &b = *a; |
| 5517 | /// int c = 5; |
| 5518 | /// |
| 5519 | /// @interface Foo |
| 5520 | /// @end |
| 5521 | /// Foo *f; |
| 5522 | /// \endcode |
| 5523 | /// pointerType() |
| 5524 | /// matches "int *a", but does not match "Foo *f". |
| 5525 | extern const AstTypeMatcher<PointerType> pointerType; |
| 5526 | |
| 5527 | /// Matches an Objective-C object pointer type, which is different from |
| 5528 | /// a pointer type, despite being syntactically similar. |
| 5529 | /// |
| 5530 | /// Given |
| 5531 | /// \code |
| 5532 | /// int *a; |
| 5533 | /// |
| 5534 | /// @interface Foo |
| 5535 | /// @end |
| 5536 | /// Foo *f; |
| 5537 | /// \endcode |
| 5538 | /// pointerType() |
| 5539 | /// matches "Foo *f", but does not match "int *a". |
| 5540 | extern const AstTypeMatcher<ObjCObjectPointerType> objcObjectPointerType; |
| 5541 | |
| 5542 | /// Matches both lvalue and rvalue reference types. |
| 5543 | /// |
| 5544 | /// Given |
| 5545 | /// \code |
| 5546 | /// int *a; |
| 5547 | /// int &b = *a; |
| 5548 | /// int &&c = 1; |
| 5549 | /// auto &d = b; |
| 5550 | /// auto &&e = c; |
| 5551 | /// auto &&f = 2; |
| 5552 | /// int g = 5; |
| 5553 | /// \endcode |
| 5554 | /// |
| 5555 | /// \c referenceType() matches the types of \c b, \c c, \c d, \c e, and \c f. |
| 5556 | extern const AstTypeMatcher<ReferenceType> referenceType; |
| 5557 | |
| 5558 | /// Matches lvalue reference types. |
| 5559 | /// |
| 5560 | /// Given: |
| 5561 | /// \code |
| 5562 | /// int *a; |
| 5563 | /// int &b = *a; |
| 5564 | /// int &&c = 1; |
| 5565 | /// auto &d = b; |
| 5566 | /// auto &&e = c; |
| 5567 | /// auto &&f = 2; |
| 5568 | /// int g = 5; |
| 5569 | /// \endcode |
| 5570 | /// |
| 5571 | /// \c lValueReferenceType() matches the types of \c b, \c d, and \c e. \c e is |
| 5572 | /// matched since the type is deduced as int& by reference collapsing rules. |
| 5573 | extern const AstTypeMatcher<LValueReferenceType> lValueReferenceType; |
| 5574 | |
| 5575 | /// Matches rvalue reference types. |
| 5576 | /// |
| 5577 | /// Given: |
| 5578 | /// \code |
| 5579 | /// int *a; |
| 5580 | /// int &b = *a; |
| 5581 | /// int &&c = 1; |
| 5582 | /// auto &d = b; |
| 5583 | /// auto &&e = c; |
| 5584 | /// auto &&f = 2; |
| 5585 | /// int g = 5; |
| 5586 | /// \endcode |
| 5587 | /// |
| 5588 | /// \c rValueReferenceType() matches the types of \c c and \c f. \c e is not |
| 5589 | /// matched as it is deduced to int& by reference collapsing rules. |
| 5590 | extern const AstTypeMatcher<RValueReferenceType> rValueReferenceType; |
| 5591 | |
| 5592 | /// Narrows PointerType (and similar) matchers to those where the |
| 5593 | /// \c pointee matches a given matcher. |
| 5594 | /// |
| 5595 | /// Given |
| 5596 | /// \code |
| 5597 | /// int *a; |
| 5598 | /// int const *b; |
| 5599 | /// float const *f; |
| 5600 | /// \endcode |
| 5601 | /// pointerType(pointee(isConstQualified(), isInteger())) |
| 5602 | /// matches "int const *b" |
| 5603 | /// |
| 5604 | /// Usable as: Matcher<BlockPointerType>, Matcher<MemberPointerType>, |
| 5605 | /// Matcher<PointerType>, Matcher<ReferenceType> |
| 5606 | AST_TYPELOC_TRAVERSE_MATCHER_DECL( |
| 5607 | pointee, getPointee, |
| 5608 | AST_POLYMORPHIC_SUPPORTED_TYPES(BlockPointerType, MemberPointerType, |
| 5609 | PointerType, ReferenceType)); |
| 5610 | |
| 5611 | /// Matches typedef types. |
| 5612 | /// |
| 5613 | /// Given |
| 5614 | /// \code |
| 5615 | /// typedef int X; |
| 5616 | /// \endcode |
| 5617 | /// typedefType() |
| 5618 | /// matches "typedef int X" |
| 5619 | extern const AstTypeMatcher<TypedefType> typedefType; |
| 5620 | |
| 5621 | /// Matches enum types. |
| 5622 | /// |
| 5623 | /// Given |
| 5624 | /// \code |
| 5625 | /// enum C { Green }; |
| 5626 | /// enum class S { Red }; |
| 5627 | /// |
| 5628 | /// C c; |
| 5629 | /// S s; |
| 5630 | /// \endcode |
| 5631 | // |
| 5632 | /// \c enumType() matches the type of the variable declarations of both \c c and |
| 5633 | /// \c s. |
| 5634 | extern const AstTypeMatcher<EnumType> enumType; |
| 5635 | |
| 5636 | /// Matches template specialization types. |
| 5637 | /// |
| 5638 | /// Given |
| 5639 | /// \code |
| 5640 | /// template <typename T> |
| 5641 | /// class C { }; |
| 5642 | /// |
| 5643 | /// template class C<int>; // A |
| 5644 | /// C<char> var; // B |
| 5645 | /// \endcode |
| 5646 | /// |
| 5647 | /// \c templateSpecializationType() matches the type of the explicit |
| 5648 | /// instantiation in \c A and the type of the variable declaration in \c B. |
| 5649 | extern const AstTypeMatcher<TemplateSpecializationType> |
| 5650 | templateSpecializationType; |
| 5651 | |
| 5652 | /// Matches types nodes representing unary type transformations. |
| 5653 | /// |
| 5654 | /// Given: |
| 5655 | /// \code |
| 5656 | /// typedef __underlying_type(T) type; |
| 5657 | /// \endcode |
| 5658 | /// unaryTransformType() |
| 5659 | /// matches "__underlying_type(T)" |
| 5660 | extern const AstTypeMatcher<UnaryTransformType> unaryTransformType; |
| 5661 | |
| 5662 | /// Matches record types (e.g. structs, classes). |
| 5663 | /// |
| 5664 | /// Given |
| 5665 | /// \code |
| 5666 | /// class C {}; |
| 5667 | /// struct S {}; |
| 5668 | /// |
| 5669 | /// C c; |
| 5670 | /// S s; |
| 5671 | /// \endcode |
| 5672 | /// |
| 5673 | /// \c recordType() matches the type of the variable declarations of both \c c |
| 5674 | /// and \c s. |
| 5675 | extern const AstTypeMatcher<RecordType> recordType; |
| 5676 | |
| 5677 | /// Matches tag types (record and enum types). |
| 5678 | /// |
| 5679 | /// Given |
| 5680 | /// \code |
| 5681 | /// enum E {}; |
| 5682 | /// class C {}; |
| 5683 | /// |
| 5684 | /// E e; |
| 5685 | /// C c; |
| 5686 | /// \endcode |
| 5687 | /// |
| 5688 | /// \c tagType() matches the type of the variable declarations of both \c e |
| 5689 | /// and \c c. |
| 5690 | extern const AstTypeMatcher<TagType> tagType; |
| 5691 | |
| 5692 | /// Matches types specified with an elaborated type keyword or with a |
| 5693 | /// qualified name. |
| 5694 | /// |
| 5695 | /// Given |
| 5696 | /// \code |
| 5697 | /// namespace N { |
| 5698 | /// namespace M { |
| 5699 | /// class D {}; |
| 5700 | /// } |
| 5701 | /// } |
| 5702 | /// class C {}; |
| 5703 | /// |
| 5704 | /// class C c; |
| 5705 | /// N::M::D d; |
| 5706 | /// \endcode |
| 5707 | /// |
| 5708 | /// \c elaboratedType() matches the type of the variable declarations of both |
| 5709 | /// \c c and \c d. |
| 5710 | extern const AstTypeMatcher<ElaboratedType> elaboratedType; |
| 5711 | |
| 5712 | /// Matches ElaboratedTypes whose qualifier, a NestedNameSpecifier, |
| 5713 | /// matches \c InnerMatcher if the qualifier exists. |
| 5714 | /// |
| 5715 | /// Given |
| 5716 | /// \code |
| 5717 | /// namespace N { |
| 5718 | /// namespace M { |
| 5719 | /// class D {}; |
| 5720 | /// } |
| 5721 | /// } |
| 5722 | /// N::M::D d; |
| 5723 | /// \endcode |
| 5724 | /// |
| 5725 | /// \c elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N")))) |
| 5726 | /// matches the type of the variable declaration of \c d. |
| 5727 | AST_MATCHER_P(ElaboratedType, hasQualifier, |
| 5728 | internal::Matcher<NestedNameSpecifier>, InnerMatcher) { |
| 5729 | if (const NestedNameSpecifier *Qualifier = Node.getQualifier()) |
| 5730 | return InnerMatcher.matches(*Qualifier, Finder, Builder); |
| 5731 | |
| 5732 | return false; |
| 5733 | } |
| 5734 | |
| 5735 | /// Matches ElaboratedTypes whose named type matches \c InnerMatcher. |
| 5736 | /// |
| 5737 | /// Given |
| 5738 | /// \code |
| 5739 | /// namespace N { |
| 5740 | /// namespace M { |
| 5741 | /// class D {}; |
| 5742 | /// } |
| 5743 | /// } |
| 5744 | /// N::M::D d; |
| 5745 | /// \endcode |
| 5746 | /// |
| 5747 | /// \c elaboratedType(namesType(recordType( |
| 5748 | /// hasDeclaration(namedDecl(hasName("D")))))) matches the type of the variable |
| 5749 | /// declaration of \c d. |
| 5750 | AST_MATCHER_P(ElaboratedType, namesType, internal::Matcher<QualType>, |
| 5751 | InnerMatcher) { |
| 5752 | return InnerMatcher.matches(Node.getNamedType(), Finder, Builder); |
| 5753 | } |
| 5754 | |
| 5755 | /// Matches types that represent the result of substituting a type for a |
| 5756 | /// template type parameter. |
| 5757 | /// |
| 5758 | /// Given |
| 5759 | /// \code |
| 5760 | /// template <typename T> |
| 5761 | /// void F(T t) { |
| 5762 | /// int i = 1 + t; |
| 5763 | /// } |
| 5764 | /// \endcode |
| 5765 | /// |
| 5766 | /// \c substTemplateTypeParmType() matches the type of 't' but not '1' |
| 5767 | extern const AstTypeMatcher<SubstTemplateTypeParmType> |
| 5768 | substTemplateTypeParmType; |
| 5769 | |
| 5770 | /// Matches template type parameter substitutions that have a replacement |
| 5771 | /// type that matches the provided matcher. |
| 5772 | /// |
| 5773 | /// Given |
| 5774 | /// \code |
| 5775 | /// template <typename T> |
| 5776 | /// double F(T t); |
| 5777 | /// int i; |
| 5778 | /// double j = F(i); |
| 5779 | /// \endcode |
| 5780 | /// |
| 5781 | /// \c substTemplateTypeParmType(hasReplacementType(type())) matches int |
| 5782 | AST_TYPE_TRAVERSE_MATCHER( |
| 5783 | hasReplacementType, getReplacementType, |
| 5784 | AST_POLYMORPHIC_SUPPORTED_TYPES(SubstTemplateTypeParmType)); |
| 5785 | |
| 5786 | /// Matches template type parameter types. |
| 5787 | /// |
| 5788 | /// Example matches T, but not int. |
| 5789 | /// (matcher = templateTypeParmType()) |
| 5790 | /// \code |
| 5791 | /// template <typename T> void f(int i); |
| 5792 | /// \endcode |
| 5793 | extern const AstTypeMatcher<TemplateTypeParmType> templateTypeParmType; |
| 5794 | |
| 5795 | /// Matches injected class name types. |
| 5796 | /// |
| 5797 | /// Example matches S s, but not S<T> s. |
| 5798 | /// (matcher = parmVarDecl(hasType(injectedClassNameType()))) |
| 5799 | /// \code |
| 5800 | /// template <typename T> struct S { |
| 5801 | /// void f(S s); |
| 5802 | /// void g(S<T> s); |
| 5803 | /// }; |
| 5804 | /// \endcode |
| 5805 | extern const AstTypeMatcher<InjectedClassNameType> injectedClassNameType; |
| 5806 | |
| 5807 | /// Matches decayed type |
| 5808 | /// Example matches i[] in declaration of f. |
| 5809 | /// (matcher = valueDecl(hasType(decayedType(hasDecayedType(pointerType()))))) |
| 5810 | /// Example matches i[1]. |
| 5811 | /// (matcher = expr(hasType(decayedType(hasDecayedType(pointerType()))))) |
| 5812 | /// \code |
| 5813 | /// void f(int i[]) { |
| 5814 | /// i[1] = 0; |
| 5815 | /// } |
| 5816 | /// \endcode |
| 5817 | extern const AstTypeMatcher<DecayedType> decayedType; |
| 5818 | |
| 5819 | /// Matches the decayed type, whos decayed type matches \c InnerMatcher |
| 5820 | AST_MATCHER_P(DecayedType, hasDecayedType, internal::Matcher<QualType>, |
| 5821 | InnerType) { |
| 5822 | return InnerType.matches(Node.getDecayedType(), Finder, Builder); |
| 5823 | } |
| 5824 | |
| 5825 | /// Matches declarations whose declaration context, interpreted as a |
| 5826 | /// Decl, matches \c InnerMatcher. |
| 5827 | /// |
| 5828 | /// Given |
| 5829 | /// \code |
| 5830 | /// namespace N { |
| 5831 | /// namespace M { |
| 5832 | /// class D {}; |
| 5833 | /// } |
| 5834 | /// } |
| 5835 | /// \endcode |
| 5836 | /// |
| 5837 | /// \c cxxRcordDecl(hasDeclContext(namedDecl(hasName("M")))) matches the |
| 5838 | /// declaration of \c class \c D. |
| 5839 | AST_MATCHER_P(Decl, hasDeclContext, internal::Matcher<Decl>, InnerMatcher) { |
| 5840 | const DeclContext *DC = Node.getDeclContext(); |
| 5841 | if (!DC) return false; |
| 5842 | return InnerMatcher.matches(*Decl::castFromDeclContext(DC), Finder, Builder); |
| 5843 | } |
| 5844 | |
| 5845 | /// Matches nested name specifiers. |
| 5846 | /// |
| 5847 | /// Given |
| 5848 | /// \code |
| 5849 | /// namespace ns { |
| 5850 | /// struct A { static void f(); }; |
| 5851 | /// void A::f() {} |
| 5852 | /// void g() { A::f(); } |
| 5853 | /// } |
| 5854 | /// ns::A a; |
| 5855 | /// \endcode |
| 5856 | /// nestedNameSpecifier() |
| 5857 | /// matches "ns::" and both "A::" |
| 5858 | extern const internal::VariadicAllOfMatcher<NestedNameSpecifier> |
| 5859 | nestedNameSpecifier; |
| 5860 | |
| 5861 | /// Same as \c nestedNameSpecifier but matches \c NestedNameSpecifierLoc. |
| 5862 | extern const internal::VariadicAllOfMatcher<NestedNameSpecifierLoc> |
| 5863 | nestedNameSpecifierLoc; |
| 5864 | |
| 5865 | /// Matches \c NestedNameSpecifierLocs for which the given inner |
| 5866 | /// NestedNameSpecifier-matcher matches. |
| 5867 | AST_MATCHER_FUNCTION_P_OVERLOAD( |
| 5868 | internal::BindableMatcher<NestedNameSpecifierLoc>, loc, |
| 5869 | internal::Matcher<NestedNameSpecifier>, InnerMatcher, 1) { |
| 5870 | return internal::BindableMatcher<NestedNameSpecifierLoc>( |
| 5871 | new internal::LocMatcher<NestedNameSpecifierLoc, NestedNameSpecifier>( |
| 5872 | InnerMatcher)); |
| 5873 | } |
| 5874 | |
| 5875 | /// Matches nested name specifiers that specify a type matching the |
| 5876 | /// given \c QualType matcher without qualifiers. |
| 5877 | /// |
| 5878 | /// Given |
| 5879 | /// \code |
| 5880 | /// struct A { struct B { struct C {}; }; }; |
| 5881 | /// A::B::C c; |
| 5882 | /// \endcode |
| 5883 | /// nestedNameSpecifier(specifiesType( |
| 5884 | /// hasDeclaration(cxxRecordDecl(hasName("A"))) |
| 5885 | /// )) |
| 5886 | /// matches "A::" |
| 5887 | AST_MATCHER_P(NestedNameSpecifier, specifiesType, |
| 5888 | internal::Matcher<QualType>, InnerMatcher) { |
| 5889 | if (!Node.getAsType()) |
| 5890 | return false; |
| 5891 | return InnerMatcher.matches(QualType(Node.getAsType(), 0), Finder, Builder); |
| 5892 | } |
| 5893 | |
| 5894 | /// Matches nested name specifier locs that specify a type matching the |
| 5895 | /// given \c TypeLoc. |
| 5896 | /// |
| 5897 | /// Given |
| 5898 | /// \code |
| 5899 | /// struct A { struct B { struct C {}; }; }; |
| 5900 | /// A::B::C c; |
| 5901 | /// \endcode |
| 5902 | /// nestedNameSpecifierLoc(specifiesTypeLoc(loc(type( |
| 5903 | /// hasDeclaration(cxxRecordDecl(hasName("A"))))))) |
| 5904 | /// matches "A::" |
| 5905 | AST_MATCHER_P(NestedNameSpecifierLoc, specifiesTypeLoc, |
| 5906 | internal::Matcher<TypeLoc>, InnerMatcher) { |
| 5907 | return Node && Node.getNestedNameSpecifier()->getAsType() && |
| 5908 | InnerMatcher.matches(Node.getTypeLoc(), Finder, Builder); |
| 5909 | } |
| 5910 | |
| 5911 | /// Matches on the prefix of a \c NestedNameSpecifier. |
| 5912 | /// |
| 5913 | /// Given |
| 5914 | /// \code |
| 5915 | /// struct A { struct B { struct C {}; }; }; |
| 5916 | /// A::B::C c; |
| 5917 | /// \endcode |
| 5918 | /// nestedNameSpecifier(hasPrefix(specifiesType(asString("struct A")))) and |
| 5919 | /// matches "A::" |
| 5920 | AST_MATCHER_P_OVERLOAD(NestedNameSpecifier, hasPrefix, |
| 5921 | internal::Matcher<NestedNameSpecifier>, InnerMatcher, |
| 5922 | 0) { |
| 5923 | const NestedNameSpecifier *NextNode = Node.getPrefix(); |
| 5924 | if (!NextNode) |
| 5925 | return false; |
| 5926 | return InnerMatcher.matches(*NextNode, Finder, Builder); |
| 5927 | } |
| 5928 | |
| 5929 | /// Matches on the prefix of a \c NestedNameSpecifierLoc. |
| 5930 | /// |
| 5931 | /// Given |
| 5932 | /// \code |
| 5933 | /// struct A { struct B { struct C {}; }; }; |
| 5934 | /// A::B::C c; |
| 5935 | /// \endcode |
| 5936 | /// nestedNameSpecifierLoc(hasPrefix(loc(specifiesType(asString("struct A"))))) |
| 5937 | /// matches "A::" |
| 5938 | AST_MATCHER_P_OVERLOAD(NestedNameSpecifierLoc, hasPrefix, |
| 5939 | internal::Matcher<NestedNameSpecifierLoc>, InnerMatcher, |
| 5940 | 1) { |
| 5941 | NestedNameSpecifierLoc NextNode = Node.getPrefix(); |
| 5942 | if (!NextNode) |
| 5943 | return false; |
| 5944 | return InnerMatcher.matches(NextNode, Finder, Builder); |
| 5945 | } |
| 5946 | |
| 5947 | /// Matches nested name specifiers that specify a namespace matching the |
| 5948 | /// given namespace matcher. |
| 5949 | /// |
| 5950 | /// Given |
| 5951 | /// \code |
| 5952 | /// namespace ns { struct A {}; } |
| 5953 | /// ns::A a; |
| 5954 | /// \endcode |
| 5955 | /// nestedNameSpecifier(specifiesNamespace(hasName("ns"))) |
| 5956 | /// matches "ns::" |
| 5957 | AST_MATCHER_P(NestedNameSpecifier, specifiesNamespace, |
| 5958 | internal::Matcher<NamespaceDecl>, InnerMatcher) { |
| 5959 | if (!Node.getAsNamespace()) |
| 5960 | return false; |
| 5961 | return InnerMatcher.matches(*Node.getAsNamespace(), Finder, Builder); |
| 5962 | } |
| 5963 | |
| 5964 | /// Overloads for the \c equalsNode matcher. |
| 5965 | /// FIXME: Implement for other node types. |
| 5966 | /// @{ |
| 5967 | |
| 5968 | /// Matches if a node equals another node. |
| 5969 | /// |
| 5970 | /// \c Decl has pointer identity in the AST. |
| 5971 | AST_MATCHER_P_OVERLOAD(Decl, equalsNode, const Decl*, Other, 0) { |
| 5972 | return &Node == Other; |
| 5973 | } |
| 5974 | /// Matches if a node equals another node. |
| 5975 | /// |
| 5976 | /// \c Stmt has pointer identity in the AST. |
| 5977 | AST_MATCHER_P_OVERLOAD(Stmt, equalsNode, const Stmt*, Other, 1) { |
| 5978 | return &Node == Other; |
| 5979 | } |
| 5980 | /// Matches if a node equals another node. |
| 5981 | /// |
| 5982 | /// \c Type has pointer identity in the AST. |
| 5983 | AST_MATCHER_P_OVERLOAD(Type, equalsNode, const Type*, Other, 2) { |
| 5984 | return &Node == Other; |
| 5985 | } |
| 5986 | |
| 5987 | /// @} |
| 5988 | |
| 5989 | /// Matches each case or default statement belonging to the given switch |
| 5990 | /// statement. This matcher may produce multiple matches. |
| 5991 | /// |
| 5992 | /// Given |
| 5993 | /// \code |
| 5994 | /// switch (1) { case 1: case 2: default: switch (2) { case 3: case 4: ; } } |
| 5995 | /// \endcode |
| 5996 | /// switchStmt(forEachSwitchCase(caseStmt().bind("c"))).bind("s") |
| 5997 | /// matches four times, with "c" binding each of "case 1:", "case 2:", |
| 5998 | /// "case 3:" and "case 4:", and "s" respectively binding "switch (1)", |
| 5999 | /// "switch (1)", "switch (2)" and "switch (2)". |
| 6000 | AST_MATCHER_P(SwitchStmt, forEachSwitchCase, internal::Matcher<SwitchCase>, |
| 6001 | InnerMatcher) { |
| 6002 | BoundNodesTreeBuilder Result; |
| 6003 | // FIXME: getSwitchCaseList() does not necessarily guarantee a stable |
| 6004 | // iteration order. We should use the more general iterating matchers once |
| 6005 | // they are capable of expressing this matcher (for example, it should ignore |
| 6006 | // case statements belonging to nested switch statements). |
| 6007 | bool Matched = false; |
| 6008 | for (const SwitchCase *SC = Node.getSwitchCaseList(); SC; |
| 6009 | SC = SC->getNextSwitchCase()) { |
| 6010 | BoundNodesTreeBuilder CaseBuilder(*Builder); |
| 6011 | bool CaseMatched = InnerMatcher.matches(*SC, Finder, &CaseBuilder); |
| 6012 | if (CaseMatched) { |
| 6013 | Matched = true; |
| 6014 | Result.addMatch(CaseBuilder); |
| 6015 | } |
| 6016 | } |
| 6017 | *Builder = std::move(Result); |
| 6018 | return Matched; |
| 6019 | } |
| 6020 | |
| 6021 | /// Matches each constructor initializer in a constructor definition. |
| 6022 | /// |
| 6023 | /// Given |
| 6024 | /// \code |
| 6025 | /// class A { A() : i(42), j(42) {} int i; int j; }; |
| 6026 | /// \endcode |
| 6027 | /// cxxConstructorDecl(forEachConstructorInitializer( |
| 6028 | /// forField(decl().bind("x")) |
| 6029 | /// )) |
| 6030 | /// will trigger two matches, binding for 'i' and 'j' respectively. |
| 6031 | AST_MATCHER_P(CXXConstructorDecl, forEachConstructorInitializer, |
| 6032 | internal::Matcher<CXXCtorInitializer>, InnerMatcher) { |
| 6033 | BoundNodesTreeBuilder Result; |
| 6034 | bool Matched = false; |
| 6035 | for (const auto *I : Node.inits()) { |
| 6036 | BoundNodesTreeBuilder InitBuilder(*Builder); |
| 6037 | if (InnerMatcher.matches(*I, Finder, &InitBuilder)) { |
| 6038 | Matched = true; |
| 6039 | Result.addMatch(InitBuilder); |
| 6040 | } |
| 6041 | } |
| 6042 | *Builder = std::move(Result); |
| 6043 | return Matched; |
| 6044 | } |
| 6045 | |
| 6046 | /// Matches constructor declarations that are copy constructors. |
| 6047 | /// |
| 6048 | /// Given |
| 6049 | /// \code |
| 6050 | /// struct S { |
| 6051 | /// S(); // #1 |
| 6052 | /// S(const S &); // #2 |
| 6053 | /// S(S &&); // #3 |
| 6054 | /// }; |
| 6055 | /// \endcode |
| 6056 | /// cxxConstructorDecl(isCopyConstructor()) will match #2, but not #1 or #3. |
| 6057 | AST_MATCHER(CXXConstructorDecl, isCopyConstructor) { |
| 6058 | return Node.isCopyConstructor(); |
| 6059 | } |
| 6060 | |
| 6061 | /// Matches constructor declarations that are move constructors. |
| 6062 | /// |
| 6063 | /// Given |
| 6064 | /// \code |
| 6065 | /// struct S { |
| 6066 | /// S(); // #1 |
| 6067 | /// S(const S &); // #2 |
| 6068 | /// S(S &&); // #3 |
| 6069 | /// }; |
| 6070 | /// \endcode |
| 6071 | /// cxxConstructorDecl(isMoveConstructor()) will match #3, but not #1 or #2. |
| 6072 | AST_MATCHER(CXXConstructorDecl, isMoveConstructor) { |
| 6073 | return Node.isMoveConstructor(); |
| 6074 | } |
| 6075 | |
| 6076 | /// Matches constructor declarations that are default constructors. |
| 6077 | /// |
| 6078 | /// Given |
| 6079 | /// \code |
| 6080 | /// struct S { |
| 6081 | /// S(); // #1 |
| 6082 | /// S(const S &); // #2 |
| 6083 | /// S(S &&); // #3 |
| 6084 | /// }; |
| 6085 | /// \endcode |
| 6086 | /// cxxConstructorDecl(isDefaultConstructor()) will match #1, but not #2 or #3. |
| 6087 | AST_MATCHER(CXXConstructorDecl, isDefaultConstructor) { |
| 6088 | return Node.isDefaultConstructor(); |
| 6089 | } |
| 6090 | |
| 6091 | /// Matches constructors that delegate to another constructor. |
| 6092 | /// |
| 6093 | /// Given |
| 6094 | /// \code |
| 6095 | /// struct S { |
| 6096 | /// S(); // #1 |
| 6097 | /// S(int) {} // #2 |
| 6098 | /// S(S &&) : S() {} // #3 |
| 6099 | /// }; |
| 6100 | /// S::S() : S(0) {} // #4 |
| 6101 | /// \endcode |
| 6102 | /// cxxConstructorDecl(isDelegatingConstructor()) will match #3 and #4, but not |
| 6103 | /// #1 or #2. |
| 6104 | AST_MATCHER(CXXConstructorDecl, isDelegatingConstructor) { |
| 6105 | return Node.isDelegatingConstructor(); |
| 6106 | } |
| 6107 | |
| 6108 | /// Matches constructor and conversion declarations that are marked with |
| 6109 | /// the explicit keyword. |
| 6110 | /// |
| 6111 | /// Given |
| 6112 | /// \code |
| 6113 | /// struct S { |
| 6114 | /// S(int); // #1 |
| 6115 | /// explicit S(double); // #2 |
| 6116 | /// operator int(); // #3 |
| 6117 | /// explicit operator bool(); // #4 |
| 6118 | /// }; |
| 6119 | /// \endcode |
| 6120 | /// cxxConstructorDecl(isExplicit()) will match #2, but not #1. |
| 6121 | /// cxxConversionDecl(isExplicit()) will match #4, but not #3. |
| 6122 | AST_POLYMORPHIC_MATCHER(isExplicit, |
| 6123 | AST_POLYMORPHIC_SUPPORTED_TYPES(CXXConstructorDecl, |
| 6124 | CXXConversionDecl)) { |
| 6125 | return Node.isExplicit(); |
| 6126 | } |
| 6127 | |
| 6128 | /// Matches function and namespace declarations that are marked with |
| 6129 | /// the inline keyword. |
| 6130 | /// |
| 6131 | /// Given |
| 6132 | /// \code |
| 6133 | /// inline void f(); |
| 6134 | /// void g(); |
| 6135 | /// namespace n { |
| 6136 | /// inline namespace m {} |
| 6137 | /// } |
| 6138 | /// \endcode |
| 6139 | /// functionDecl(isInline()) will match ::f(). |
| 6140 | /// namespaceDecl(isInline()) will match n::m. |
| 6141 | AST_POLYMORPHIC_MATCHER(isInline, |
| 6142 | AST_POLYMORPHIC_SUPPORTED_TYPES(NamespaceDecl, |
| 6143 | FunctionDecl)) { |
| 6144 | // This is required because the spelling of the function used to determine |
| 6145 | // whether inline is specified or not differs between the polymorphic types. |
| 6146 | if (const auto *FD = dyn_cast<FunctionDecl>(&Node)) |
| 6147 | return FD->isInlineSpecified(); |
| 6148 | else if (const auto *NSD = dyn_cast<NamespaceDecl>(&Node)) |
| 6149 | return NSD->isInline(); |
| 6150 | llvm_unreachable("Not a valid polymorphic type"); |
| 6151 | } |
| 6152 | |
| 6153 | /// Matches anonymous namespace declarations. |
| 6154 | /// |
| 6155 | /// Given |
| 6156 | /// \code |
| 6157 | /// namespace n { |
| 6158 | /// namespace {} // #1 |
| 6159 | /// } |
| 6160 | /// \endcode |
| 6161 | /// namespaceDecl(isAnonymous()) will match #1 but not ::n. |
| 6162 | AST_MATCHER(NamespaceDecl, isAnonymous) { |
| 6163 | return Node.isAnonymousNamespace(); |
| 6164 | } |
| 6165 | |
| 6166 | /// If the given case statement does not use the GNU case range |
| 6167 | /// extension, matches the constant given in the statement. |
| 6168 | /// |
| 6169 | /// Given |
| 6170 | /// \code |
| 6171 | /// switch (1) { case 1: case 1+1: case 3 ... 4: ; } |
| 6172 | /// \endcode |
| 6173 | /// caseStmt(hasCaseConstant(integerLiteral())) |
| 6174 | /// matches "case 1:" |
| 6175 | AST_MATCHER_P(CaseStmt, hasCaseConstant, internal::Matcher<Expr>, |
| 6176 | InnerMatcher) { |
| 6177 | if (Node.getRHS()) |
| 6178 | return false; |
| 6179 | |
| 6180 | return InnerMatcher.matches(*Node.getLHS(), Finder, Builder); |
| 6181 | } |
| 6182 | |
| 6183 | /// Matches declaration that has a given attribute. |
| 6184 | /// |
| 6185 | /// Given |
| 6186 | /// \code |
| 6187 | /// __attribute__((device)) void f() { ... } |
| 6188 | /// \endcode |
| 6189 | /// decl(hasAttr(clang::attr::CUDADevice)) matches the function declaration of |
| 6190 | /// f. If the matcher is use from clang-query, attr::Kind parameter should be |
| 6191 | /// passed as a quoted string. e.g., hasAttr("attr::CUDADevice"). |
| 6192 | AST_MATCHER_P(Decl, hasAttr, attr::Kind, AttrKind) { |
| 6193 | for (const auto *Attr : Node.attrs()) { |
| 6194 | if (Attr->getKind() == AttrKind) |
| 6195 | return true; |
| 6196 | } |
| 6197 | return false; |
| 6198 | } |
| 6199 | |
| 6200 | /// Matches the return value expression of a return statement |
| 6201 | /// |
| 6202 | /// Given |
| 6203 | /// \code |
| 6204 | /// return a + b; |
| 6205 | /// \endcode |
| 6206 | /// hasReturnValue(binaryOperator()) |
| 6207 | /// matches 'return a + b' |
| 6208 | /// with binaryOperator() |
| 6209 | /// matching 'a + b' |
| 6210 | AST_MATCHER_P(ReturnStmt, hasReturnValue, internal::Matcher<Expr>, |
| 6211 | InnerMatcher) { |
| 6212 | if (const auto *RetValue = Node.getRetValue()) |
| 6213 | return InnerMatcher.matches(*RetValue, Finder, Builder); |
| 6214 | return false; |
| 6215 | } |
| 6216 | |
| 6217 | /// Matches CUDA kernel call expression. |
| 6218 | /// |
| 6219 | /// Example matches, |
| 6220 | /// \code |
| 6221 | /// kernel<<<i,j>>>(); |
| 6222 | /// \endcode |
| 6223 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, CUDAKernelCallExpr> |
| 6224 | cudaKernelCallExpr; |
| 6225 | |
| 6226 | /// Matches expressions that resolve to a null pointer constant, such as |
| 6227 | /// GNU's __null, C++11's nullptr, or C's NULL macro. |
| 6228 | /// |
| 6229 | /// Given: |
| 6230 | /// \code |
| 6231 | /// void *v1 = NULL; |
| 6232 | /// void *v2 = nullptr; |
| 6233 | /// void *v3 = __null; // GNU extension |
| 6234 | /// char *cp = (char *)0; |
| 6235 | /// int *ip = 0; |
| 6236 | /// int i = 0; |
| 6237 | /// \endcode |
| 6238 | /// expr(nullPointerConstant()) |
| 6239 | /// matches the initializer for v1, v2, v3, cp, and ip. Does not match the |
| 6240 | /// initializer for i. |
| 6241 | AST_MATCHER_FUNCTION(internal::Matcher<Expr>, nullPointerConstant) { |
| 6242 | return anyOf( |
| 6243 | gnuNullExpr(), cxxNullPtrLiteralExpr(), |
| 6244 | integerLiteral(equals(0), hasParent(expr(hasType(pointerType()))))); |
| 6245 | } |
| 6246 | |
| 6247 | /// Matches declaration of the function the statement belongs to |
| 6248 | /// |
| 6249 | /// Given: |
| 6250 | /// \code |
| 6251 | /// F& operator=(const F& o) { |
| 6252 | /// std::copy_if(o.begin(), o.end(), begin(), [](V v) { return v > 0; }); |
| 6253 | /// return *this; |
| 6254 | /// } |
| 6255 | /// \endcode |
| 6256 | /// returnStmt(forFunction(hasName("operator="))) |
| 6257 | /// matches 'return *this' |
| 6258 | /// but does match 'return > 0' |
| 6259 | AST_MATCHER_P(Stmt, forFunction, internal::Matcher<FunctionDecl>, |
| 6260 | InnerMatcher) { |
| 6261 | const auto &Parents = Finder->getASTContext().getParents(Node); |
| 6262 | |
| 6263 | llvm::SmallVector<ast_type_traits::DynTypedNode, 8> Stack(Parents.begin(), |
| 6264 | Parents.end()); |
| 6265 | while(!Stack.empty()) { |
| 6266 | const auto &CurNode = Stack.back(); |
| 6267 | Stack.pop_back(); |
| 6268 | if(const auto *FuncDeclNode = CurNode.get<FunctionDecl>()) { |
| 6269 | if(InnerMatcher.matches(*FuncDeclNode, Finder, Builder)) { |
| 6270 | return true; |
| 6271 | } |
| 6272 | } else if(const auto *LambdaExprNode = CurNode.get<LambdaExpr>()) { |
| 6273 | if(InnerMatcher.matches(*LambdaExprNode->getCallOperator(), |
| 6274 | Finder, Builder)) { |
| 6275 | return true; |
| 6276 | } |
| 6277 | } else { |
| 6278 | for(const auto &Parent: Finder->getASTContext().getParents(CurNode)) |
| 6279 | Stack.push_back(Parent); |
| 6280 | } |
| 6281 | } |
| 6282 | return false; |
| 6283 | } |
| 6284 | |
| 6285 | /// Matches a declaration that has external formal linkage. |
| 6286 | /// |
| 6287 | /// Example matches only z (matcher = varDecl(hasExternalFormalLinkage())) |
| 6288 | /// \code |
| 6289 | /// void f() { |
| 6290 | /// int x; |
| 6291 | /// static int y; |
| 6292 | /// } |
| 6293 | /// int z; |
| 6294 | /// \endcode |
| 6295 | /// |
| 6296 | /// Example matches f() because it has external formal linkage despite being |
| 6297 | /// unique to the translation unit as though it has internal likage |
| 6298 | /// (matcher = functionDecl(hasExternalFormalLinkage())) |
| 6299 | /// |
| 6300 | /// \code |
| 6301 | /// namespace { |
| 6302 | /// void f() {} |
| 6303 | /// } |
| 6304 | /// \endcode |
| 6305 | AST_MATCHER(NamedDecl, hasExternalFormalLinkage) { |
| 6306 | return Node.hasExternalFormalLinkage(); |
| 6307 | } |
| 6308 | |
| 6309 | /// Matches a declaration that has default arguments. |
| 6310 | /// |
| 6311 | /// Example matches y (matcher = parmVarDecl(hasDefaultArgument())) |
| 6312 | /// \code |
| 6313 | /// void x(int val) {} |
| 6314 | /// void y(int val = 0) {} |
| 6315 | /// \endcode |
| 6316 | AST_MATCHER(ParmVarDecl, hasDefaultArgument) { |
| 6317 | return Node.hasDefaultArg(); |
| 6318 | } |
| 6319 | |
| 6320 | /// Matches array new expressions. |
| 6321 | /// |
| 6322 | /// Given: |
| 6323 | /// \code |
| 6324 | /// MyClass *p1 = new MyClass[10]; |
| 6325 | /// \endcode |
| 6326 | /// cxxNewExpr(isArray()) |
| 6327 | /// matches the expression 'new MyClass[10]'. |
| 6328 | AST_MATCHER(CXXNewExpr, isArray) { |
| 6329 | return Node.isArray(); |
| 6330 | } |
| 6331 | |
| 6332 | /// Matches array new expressions with a given array size. |
| 6333 | /// |
| 6334 | /// Given: |
| 6335 | /// \code |
| 6336 | /// MyClass *p1 = new MyClass[10]; |
| 6337 | /// \endcode |
| 6338 | /// cxxNewExpr(hasArraySize(intgerLiteral(equals(10)))) |
| 6339 | /// matches the expression 'new MyClass[10]'. |
| 6340 | AST_MATCHER_P(CXXNewExpr, hasArraySize, internal::Matcher<Expr>, InnerMatcher) { |
| 6341 | return Node.isArray() && |
| 6342 | InnerMatcher.matches(*Node.getArraySize(), Finder, Builder); |
| 6343 | } |
| 6344 | |
| 6345 | /// Matches a class declaration that is defined. |
| 6346 | /// |
| 6347 | /// Example matches x (matcher = cxxRecordDecl(hasDefinition())) |
| 6348 | /// \code |
| 6349 | /// class x {}; |
| 6350 | /// class y; |
| 6351 | /// \endcode |
| 6352 | AST_MATCHER(CXXRecordDecl, hasDefinition) { |
| 6353 | return Node.hasDefinition(); |
| 6354 | } |
| 6355 | |
| 6356 | /// Matches C++11 scoped enum declaration. |
| 6357 | /// |
| 6358 | /// Example matches Y (matcher = enumDecl(isScoped())) |
| 6359 | /// \code |
| 6360 | /// enum X {}; |
| 6361 | /// enum class Y {}; |
| 6362 | /// \endcode |
| 6363 | AST_MATCHER(EnumDecl, isScoped) { |
| 6364 | return Node.isScoped(); |
| 6365 | } |
| 6366 | |
| 6367 | /// Matches a function declared with a trailing return type. |
| 6368 | /// |
| 6369 | /// Example matches Y (matcher = functionDecl(hasTrailingReturn())) |
| 6370 | /// \code |
| 6371 | /// int X() {} |
| 6372 | /// auto Y() -> int {} |
| 6373 | /// \endcode |
| 6374 | AST_MATCHER(FunctionDecl, hasTrailingReturn) { |
| 6375 | if (const auto *F = Node.getType()->getAs<FunctionProtoType>()) |
| 6376 | return F->hasTrailingReturn(); |
| 6377 | return false; |
| 6378 | } |
| 6379 | |
| 6380 | //----------------------------------------------------------------------------// |
| 6381 | // OpenMP handling. |
| 6382 | //----------------------------------------------------------------------------// |
| 6383 | |
| 6384 | /// Matches any ``#pragma omp`` executable directive. |
| 6385 | /// |
| 6386 | /// Given |
| 6387 | /// |
| 6388 | /// \code |
| 6389 | /// #pragma omp parallel |
| 6390 | /// #pragma omp parallel default(none) |
| 6391 | /// #pragma omp taskyield |
| 6392 | /// \endcode |
| 6393 | /// |
| 6394 | /// ``ompExecutableDirective()`` matches ``omp parallel``, |
| 6395 | /// ``omp parallel default(none)`` and ``omp taskyield``. |
| 6396 | extern const internal::VariadicDynCastAllOfMatcher<Stmt, OMPExecutableDirective> |
| 6397 | ompExecutableDirective; |
| 6398 | |
| 6399 | /// Matches standalone OpenMP directives, |
| 6400 | /// i.e., directives that can't have a structured block. |
| 6401 | /// |
| 6402 | /// Given |
| 6403 | /// |
| 6404 | /// \code |
| 6405 | /// #pragma omp parallel |
| 6406 | /// {} |
| 6407 | /// #pragma omp taskyield |
| 6408 | /// \endcode |
| 6409 | /// |
| 6410 | /// ``ompExecutableDirective(isStandaloneDirective()))`` matches |
| 6411 | /// ``omp taskyield``. |
| 6412 | AST_MATCHER(OMPExecutableDirective, isStandaloneDirective) { |
| 6413 | return Node.isStandaloneDirective(); |
| 6414 | } |
| 6415 | |
| 6416 | /// Matches the Stmt AST node that is marked as being the structured-block |
| 6417 | /// of an OpenMP executable directive. |
| 6418 | /// |
| 6419 | /// Given |
| 6420 | /// |
| 6421 | /// \code |
| 6422 | /// #pragma omp parallel |
| 6423 | /// {} |
| 6424 | /// \endcode |
| 6425 | /// |
| 6426 | /// ``stmt(isOMPStructuredBlock()))`` matches ``{}``. |
| 6427 | AST_MATCHER(Stmt, isOMPStructuredBlock) { return Node.isOMPStructuredBlock(); } |
| 6428 | |
| 6429 | /// Matches the structured-block of the OpenMP executable directive |
| 6430 | /// |
| 6431 | /// Prerequisite: the executable directive must not be standalone directive. |
| 6432 | /// If it is, it will never match. |
| 6433 | /// |
| 6434 | /// Given |
| 6435 | /// |
| 6436 | /// \code |
| 6437 | /// #pragma omp parallel |
| 6438 | /// ; |
| 6439 | /// #pragma omp parallel |
| 6440 | /// {} |
| 6441 | /// \endcode |
| 6442 | /// |
| 6443 | /// ``ompExecutableDirective(hasStructuredBlock(nullStmt()))`` will match ``;`` |
| 6444 | AST_MATCHER_P(OMPExecutableDirective, hasStructuredBlock, |
| 6445 | internal::Matcher<Stmt>, InnerMatcher) { |
| 6446 | if (Node.isStandaloneDirective()) |
| 6447 | return false; // Standalone directives have no structured blocks. |
| 6448 | return InnerMatcher.matches(*Node.getStructuredBlock(), Finder, Builder); |
| 6449 | } |
| 6450 | |
| 6451 | /// Matches any clause in an OpenMP directive. |
| 6452 | /// |
| 6453 | /// Given |
| 6454 | /// |
| 6455 | /// \code |
| 6456 | /// #pragma omp parallel |
| 6457 | /// #pragma omp parallel default(none) |
| 6458 | /// \endcode |
| 6459 | /// |
| 6460 | /// ``ompExecutableDirective(hasAnyClause(anything()))`` matches |
| 6461 | /// ``omp parallel default(none)``. |
| 6462 | AST_MATCHER_P(OMPExecutableDirective, hasAnyClause, |
| 6463 | internal::Matcher<OMPClause>, InnerMatcher) { |
| 6464 | ArrayRef<OMPClause *> Clauses = Node.clauses(); |
| 6465 | return matchesFirstInPointerRange(InnerMatcher, Clauses.begin(), |
| 6466 | Clauses.end(), Finder, Builder); |
| 6467 | } |
| 6468 | |
| 6469 | /// Matches OpenMP ``default`` clause. |
| 6470 | /// |
| 6471 | /// Given |
| 6472 | /// |
| 6473 | /// \code |
| 6474 | /// #pragma omp parallel default(none) |
| 6475 | /// #pragma omp parallel default(shared) |
| 6476 | /// #pragma omp parallel |
| 6477 | /// \endcode |
| 6478 | /// |
| 6479 | /// ``ompDefaultClause()`` matches ``default(none)`` and ``default(shared)``. |
| 6480 | extern const internal::VariadicDynCastAllOfMatcher<OMPClause, OMPDefaultClause> |
| 6481 | ompDefaultClause; |
| 6482 | |
| 6483 | /// Matches if the OpenMP ``default`` clause has ``none`` kind specified. |
| 6484 | /// |
| 6485 | /// Given |
| 6486 | /// |
| 6487 | /// \code |
| 6488 | /// #pragma omp parallel |
| 6489 | /// #pragma omp parallel default(none) |
| 6490 | /// #pragma omp parallel default(shared) |
| 6491 | /// \endcode |
| 6492 | /// |
| 6493 | /// ``ompDefaultClause(isNoneKind())`` matches only ``default(none)``. |
| 6494 | AST_MATCHER(OMPDefaultClause, isNoneKind) { |
| 6495 | return Node.getDefaultKind() == OMPC_DEFAULT_none; |
| 6496 | } |
| 6497 | |
| 6498 | /// Matches if the OpenMP ``default`` clause has ``shared`` kind specified. |
| 6499 | /// |
| 6500 | /// Given |
| 6501 | /// |
| 6502 | /// \code |
| 6503 | /// #pragma omp parallel |
| 6504 | /// #pragma omp parallel default(none) |
| 6505 | /// #pragma omp parallel default(shared) |
| 6506 | /// \endcode |
| 6507 | /// |
| 6508 | /// ``ompDefaultClause(isSharedKind())`` matches only ``default(shared)``. |
| 6509 | AST_MATCHER(OMPDefaultClause, isSharedKind) { |
| 6510 | return Node.getDefaultKind() == OMPC_DEFAULT_shared; |
| 6511 | } |
| 6512 | |
| 6513 | /// Matches if the OpenMP directive is allowed to contain the specified OpenMP |
| 6514 | /// clause kind. |
| 6515 | /// |
| 6516 | /// Given |
| 6517 | /// |
| 6518 | /// \code |
| 6519 | /// #pragma omp parallel |
| 6520 | /// #pragma omp parallel for |
| 6521 | /// #pragma omp for |
| 6522 | /// \endcode |
| 6523 | /// |
| 6524 | /// `ompExecutableDirective(isAllowedToContainClause(OMPC_default))`` matches |
| 6525 | /// ``omp parallel`` and ``omp parallel for``. |
| 6526 | /// |
| 6527 | /// If the matcher is use from clang-query, ``OpenMPClauseKind`` parameter |
| 6528 | /// should be passed as a quoted string. e.g., |
| 6529 | /// ``isAllowedToContainClauseKind("OMPC_default").`` |
| 6530 | AST_MATCHER_P(OMPExecutableDirective, isAllowedToContainClauseKind, |
| 6531 | OpenMPClauseKind, CKind) { |
| 6532 | return isAllowedClauseForDirective(Node.getDirectiveKind(), CKind); |
| 6533 | } |
| 6534 | |
| 6535 | //----------------------------------------------------------------------------// |
| 6536 | // End OpenMP handling. |
| 6537 | //----------------------------------------------------------------------------// |
| 6538 | |
| 6539 | } // namespace ast_matchers |
| 6540 | } // namespace clang |
| 6541 | |
| 6542 | #endif // LLVM_CLANG_ASTMATCHERS_ASTMATCHERS_H |
| 6543 |