| //= unittests/ASTMatchers/ASTMatchersTraversalTest.cpp - matchers unit tests =// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "ASTMatchersTest.h" |
| #include "clang/AST/PrettyPrinter.h" |
| #include "clang/ASTMatchers/ASTMatchFinder.h" |
| #include "clang/ASTMatchers/ASTMatchers.h" |
| #include "clang/Tooling/Tooling.h" |
| #include "llvm/ADT/Triple.h" |
| #include "llvm/Support/Host.h" |
| #include "gtest/gtest.h" |
| |
| namespace clang { |
| namespace ast_matchers { |
| |
| TEST(DeclarationMatcher, hasMethod) { |
| EXPECT_TRUE(matches("class A { void func(); };", |
| cxxRecordDecl(hasMethod(hasName("func"))))); |
| EXPECT_TRUE(notMatches("class A { void func(); };", |
| cxxRecordDecl(hasMethod(isPublic())))); |
| } |
| |
| TEST(DeclarationMatcher, ClassDerivedFromDependentTemplateSpecialization) { |
| EXPECT_TRUE(matches( |
| "template <typename T> struct A {" |
| " template <typename T2> struct F {};" |
| "};" |
| "template <typename T> struct B : A<T>::template F<T> {};" |
| "B<int> b;", |
| cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl())))); |
| } |
| |
| TEST(DeclarationMatcher, hasDeclContext) { |
| EXPECT_TRUE(matches( |
| "namespace N {" |
| " namespace M {" |
| " class D {};" |
| " }" |
| "}", |
| recordDecl(hasDeclContext(namespaceDecl(hasName("M")))))); |
| EXPECT_TRUE(notMatches( |
| "namespace N {" |
| " namespace M {" |
| " class D {};" |
| " }" |
| "}", |
| recordDecl(hasDeclContext(namespaceDecl(hasName("N")))))); |
| |
| EXPECT_TRUE(matches("namespace {" |
| " namespace M {" |
| " class D {};" |
| " }" |
| "}", |
| recordDecl(hasDeclContext(namespaceDecl( |
| hasName("M"), hasDeclContext(namespaceDecl())))))); |
| |
| EXPECT_TRUE(matches("class D{};", decl(hasDeclContext(decl())))); |
| } |
| |
| TEST(HasDescendant, MatchesDescendantTypes) { |
| EXPECT_TRUE(matches("void f() { int i = 3; }", |
| decl(hasDescendant(loc(builtinType()))))); |
| EXPECT_TRUE(matches("void f() { int i = 3; }", |
| stmt(hasDescendant(builtinType())))); |
| |
| EXPECT_TRUE(matches("void f() { int i = 3; }", |
| stmt(hasDescendant(loc(builtinType()))))); |
| EXPECT_TRUE(matches("void f() { int i = 3; }", |
| stmt(hasDescendant(qualType(builtinType()))))); |
| |
| EXPECT_TRUE(notMatches("void f() { float f = 2.0f; }", |
| stmt(hasDescendant(isInteger())))); |
| |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void f() { int a; float c; int d; int e; }", |
| functionDecl(forEachDescendant( |
| varDecl(hasDescendant(isInteger())).bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 3))); |
| } |
| |
| TEST(HasDescendant, MatchesDescendantsOfTypes) { |
| EXPECT_TRUE(matches("void f() { int*** i; }", |
| qualType(hasDescendant(builtinType())))); |
| EXPECT_TRUE(matches("void f() { int*** i; }", |
| qualType(hasDescendant( |
| pointerType(pointee(builtinType())))))); |
| EXPECT_TRUE(matches("void f() { int*** i; }", |
| typeLoc(hasDescendant(loc(builtinType()))))); |
| |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void f() { int*** i; }", |
| qualType(asString("int ***"), forEachDescendant(pointerType().bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<Type>>("x", 2))); |
| } |
| |
| |
| TEST(Has, MatchesChildrenOfTypes) { |
| EXPECT_TRUE(matches("int i;", |
| varDecl(hasName("i"), has(isInteger())))); |
| EXPECT_TRUE(notMatches("int** i;", |
| varDecl(hasName("i"), has(isInteger())))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "int (*f)(float, int);", |
| qualType(functionType(), forEach(qualType(isInteger()).bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<QualType>>("x", 2))); |
| } |
| |
| TEST(Has, MatchesChildTypes) { |
| EXPECT_TRUE(matches( |
| "int* i;", |
| varDecl(hasName("i"), hasType(qualType(has(builtinType())))))); |
| EXPECT_TRUE(notMatches( |
| "int* i;", |
| varDecl(hasName("i"), hasType(qualType(has(pointerType())))))); |
| } |
| |
| TEST(StatementMatcher, Has) { |
| StatementMatcher HasVariableI = |
| expr(hasType(pointsTo(recordDecl(hasName("X")))), |
| has(ignoringParenImpCasts(declRefExpr(to(varDecl(hasName("i"))))))); |
| |
| EXPECT_TRUE(matches( |
| "class X; X *x(int); void c() { int i; x(i); }", HasVariableI)); |
| EXPECT_TRUE(notMatches( |
| "class X; X *x(int); void c() { int i; x(42); }", HasVariableI)); |
| } |
| |
| TEST(StatementMatcher, HasDescendant) { |
| StatementMatcher HasDescendantVariableI = |
| expr(hasType(pointsTo(recordDecl(hasName("X")))), |
| hasDescendant(declRefExpr(to(varDecl(hasName("i")))))); |
| |
| EXPECT_TRUE(matches( |
| "class X; X *x(bool); bool b(int); void c() { int i; x(b(i)); }", |
| HasDescendantVariableI)); |
| EXPECT_TRUE(notMatches( |
| "class X; X *x(bool); bool b(int); void c() { int i; x(b(42)); }", |
| HasDescendantVariableI)); |
| } |
| |
| TEST(TypeMatcher, MatchesClassType) { |
| TypeMatcher TypeA = hasDeclaration(recordDecl(hasName("A"))); |
| |
| EXPECT_TRUE(matches("class A { public: A *a; };", TypeA)); |
| EXPECT_TRUE(notMatches("class A {};", TypeA)); |
| |
| TypeMatcher TypeDerivedFromA = |
| hasDeclaration(cxxRecordDecl(isDerivedFrom("A"))); |
| |
| EXPECT_TRUE(matches("class A {}; class B : public A { public: B *b; };", |
| TypeDerivedFromA)); |
| EXPECT_TRUE(notMatches("class A {};", TypeA)); |
| |
| TypeMatcher TypeAHasClassB = hasDeclaration( |
| recordDecl(hasName("A"), has(recordDecl(hasName("B"))))); |
| |
| EXPECT_TRUE( |
| matches("class A { public: A *a; class B {}; };", TypeAHasClassB)); |
| |
| EXPECT_TRUE(matchesC("struct S {}; void f(void) { struct S s; }", |
| varDecl(hasType(namedDecl(hasName("S")))))); |
| } |
| |
| TEST(TypeMatcher, MatchesDeclTypes) { |
| // TypedefType -> TypedefNameDecl |
| EXPECT_TRUE(matches("typedef int I; void f(I i);", |
| parmVarDecl(hasType(namedDecl(hasName("I")))))); |
| // ObjCObjectPointerType |
| EXPECT_TRUE(matchesObjC("@interface Foo @end void f(Foo *f);", |
| parmVarDecl(hasType(objcObjectPointerType())))); |
| // ObjCObjectPointerType -> ObjCInterfaceType -> ObjCInterfaceDecl |
| EXPECT_TRUE(matchesObjC( |
| "@interface Foo @end void f(Foo *f);", |
| parmVarDecl(hasType(pointsTo(objcInterfaceDecl(hasName("Foo"))))))); |
| // TemplateTypeParmType |
| EXPECT_TRUE(matches("template <typename T> void f(T t);", |
| parmVarDecl(hasType(templateTypeParmType())))); |
| // TemplateTypeParmType -> TemplateTypeParmDecl |
| EXPECT_TRUE(matches("template <typename T> void f(T t);", |
| parmVarDecl(hasType(namedDecl(hasName("T")))))); |
| // InjectedClassNameType |
| EXPECT_TRUE(matches("template <typename T> struct S {" |
| " void f(S s);" |
| "};", |
| parmVarDecl(hasType(injectedClassNameType())))); |
| EXPECT_TRUE(notMatches("template <typename T> struct S {" |
| " void g(S<T> s);" |
| "};", |
| parmVarDecl(hasType(injectedClassNameType())))); |
| // InjectedClassNameType -> CXXRecordDecl |
| EXPECT_TRUE(matches("template <typename T> struct S {" |
| " void f(S s);" |
| "};", |
| parmVarDecl(hasType(namedDecl(hasName("S")))))); |
| |
| static const char Using[] = "template <typename T>" |
| "struct Base {" |
| " typedef T Foo;" |
| "};" |
| "" |
| "template <typename T>" |
| "struct S : private Base<T> {" |
| " using typename Base<T>::Foo;" |
| " void f(Foo);" |
| "};"; |
| // UnresolvedUsingTypenameDecl |
| EXPECT_TRUE(matches(Using, unresolvedUsingTypenameDecl(hasName("Foo")))); |
| // UnresolvedUsingTypenameType -> UnresolvedUsingTypenameDecl |
| EXPECT_TRUE(matches(Using, parmVarDecl(hasType(namedDecl(hasName("Foo")))))); |
| } |
| |
| TEST(HasDeclaration, HasDeclarationOfEnumType) { |
| EXPECT_TRUE(matches("enum X {}; void y(X *x) { x; }", |
| expr(hasType(pointsTo( |
| qualType(hasDeclaration(enumDecl(hasName("X"))))))))); |
| } |
| |
| TEST(HasDeclaration, HasGetDeclTraitTest) { |
| static_assert(internal::has_getDecl<TypedefType>::value, |
| "Expected TypedefType to have a getDecl."); |
| static_assert(internal::has_getDecl<RecordType>::value, |
| "Expected RecordType to have a getDecl."); |
| static_assert(!internal::has_getDecl<TemplateSpecializationType>::value, |
| "Expected TemplateSpecializationType to *not* have a getDecl."); |
| } |
| |
| TEST(HasDeclaration, ElaboratedType) { |
| EXPECT_TRUE(matches( |
| "namespace n { template <typename T> struct X {}; }" |
| "void f(n::X<int>);", |
| parmVarDecl(hasType(qualType(hasDeclaration(cxxRecordDecl())))))); |
| EXPECT_TRUE(matches( |
| "namespace n { template <typename T> struct X {}; }" |
| "void f(n::X<int>);", |
| parmVarDecl(hasType(elaboratedType(hasDeclaration(cxxRecordDecl())))))); |
| } |
| |
| TEST(HasDeclaration, HasDeclarationOfTypeWithDecl) { |
| EXPECT_TRUE(matches("typedef int X; X a;", |
| varDecl(hasName("a"), |
| hasType(typedefType(hasDeclaration(decl())))))); |
| |
| // FIXME: Add tests for other types with getDecl() (e.g. RecordType) |
| } |
| |
| TEST(HasDeclaration, HasDeclarationOfTemplateSpecializationType) { |
| EXPECT_TRUE(matches("template <typename T> class A {}; A<int> a;", |
| varDecl(hasType(templateSpecializationType( |
| hasDeclaration(namedDecl(hasName("A")))))))); |
| EXPECT_TRUE(matches("template <typename T> class A {};" |
| "template <typename T> class B { A<T> a; };", |
| fieldDecl(hasType(templateSpecializationType( |
| hasDeclaration(namedDecl(hasName("A")))))))); |
| EXPECT_TRUE(matches("template <typename T> class A {}; A<int> a;", |
| varDecl(hasType(templateSpecializationType( |
| hasDeclaration(cxxRecordDecl())))))); |
| } |
| |
| TEST(HasDeclaration, HasDeclarationOfCXXNewExpr) { |
| EXPECT_TRUE( |
| matches("int *A = new int();", |
| cxxNewExpr(hasDeclaration(functionDecl(parameterCountIs(1)))))); |
| } |
| |
| TEST(HasDeclaration, HasDeclarationOfTypeAlias) { |
| EXPECT_TRUE(matches("template <typename T> using C = T; C<int> c;", |
| varDecl(hasType(templateSpecializationType( |
| hasDeclaration(typeAliasTemplateDecl())))))); |
| } |
| |
| TEST(HasUnqualifiedDesugaredType, DesugarsUsing) { |
| EXPECT_TRUE( |
| matches("struct A {}; using B = A; B b;", |
| varDecl(hasType(hasUnqualifiedDesugaredType(recordType()))))); |
| EXPECT_TRUE( |
| matches("struct A {}; using B = A; using C = B; C b;", |
| varDecl(hasType(hasUnqualifiedDesugaredType(recordType()))))); |
| } |
| |
| TEST(HasUnderlyingDecl, Matches) { |
| EXPECT_TRUE(matches("namespace N { template <class T> void f(T t); }" |
| "template <class T> void g() { using N::f; f(T()); }", |
| unresolvedLookupExpr(hasAnyDeclaration( |
| namedDecl(hasUnderlyingDecl(hasName("::N::f"))))))); |
| EXPECT_TRUE(matches( |
| "namespace N { template <class T> void f(T t); }" |
| "template <class T> void g() { N::f(T()); }", |
| unresolvedLookupExpr(hasAnyDeclaration(namedDecl(hasName("::N::f")))))); |
| EXPECT_TRUE(notMatches( |
| "namespace N { template <class T> void f(T t); }" |
| "template <class T> void g() { using N::f; f(T()); }", |
| unresolvedLookupExpr(hasAnyDeclaration(namedDecl(hasName("::N::f")))))); |
| } |
| |
| TEST(HasType, TakesQualTypeMatcherAndMatchesExpr) { |
| TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X"))); |
| EXPECT_TRUE( |
| matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX)))); |
| EXPECT_TRUE( |
| notMatches("class X {}; void y(X *x) { x; }", |
| expr(hasType(ClassX)))); |
| EXPECT_TRUE( |
| matches("class X {}; void y(X *x) { x; }", |
| expr(hasType(pointsTo(ClassX))))); |
| } |
| |
| TEST(HasType, TakesQualTypeMatcherAndMatchesValueDecl) { |
| TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X"))); |
| EXPECT_TRUE( |
| matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX)))); |
| EXPECT_TRUE( |
| notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX)))); |
| EXPECT_TRUE( |
| matches("class X {}; void y() { X *x; }", |
| varDecl(hasType(pointsTo(ClassX))))); |
| } |
| |
| TEST(HasType, TakesDeclMatcherAndMatchesExpr) { |
| DeclarationMatcher ClassX = recordDecl(hasName("X")); |
| EXPECT_TRUE( |
| matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX)))); |
| EXPECT_TRUE( |
| notMatches("class X {}; void y(X *x) { x; }", |
| expr(hasType(ClassX)))); |
| } |
| |
| TEST(HasType, TakesDeclMatcherAndMatchesValueDecl) { |
| DeclarationMatcher ClassX = recordDecl(hasName("X")); |
| EXPECT_TRUE( |
| matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX)))); |
| EXPECT_TRUE( |
| notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX)))); |
| } |
| |
| TEST(HasType, MatchesTypedefDecl) { |
| EXPECT_TRUE(matches("typedef int X;", typedefDecl(hasType(asString("int"))))); |
| EXPECT_TRUE(matches("typedef const int T;", |
| typedefDecl(hasType(asString("const int"))))); |
| EXPECT_TRUE(notMatches("typedef const int T;", |
| typedefDecl(hasType(asString("int"))))); |
| EXPECT_TRUE(matches("typedef int foo; typedef foo bar;", |
| typedefDecl(hasType(asString("foo")), hasName("bar")))); |
| } |
| |
| TEST(HasType, MatchesTypedefNameDecl) { |
| EXPECT_TRUE(matches("using X = int;", typedefNameDecl(hasType(asString("int"))))); |
| EXPECT_TRUE(matches("using T = const int;", |
| typedefNameDecl(hasType(asString("const int"))))); |
| EXPECT_TRUE(notMatches("using T = const int;", |
| typedefNameDecl(hasType(asString("int"))))); |
| EXPECT_TRUE(matches("using foo = int; using bar = foo;", |
| typedefNameDecl(hasType(asString("foo")), hasName("bar")))); |
| } |
| |
| TEST(HasTypeLoc, MatchesDeclaratorDecls) { |
| EXPECT_TRUE(matches("int x;", |
| varDecl(hasName("x"), hasTypeLoc(loc(asString("int")))))); |
| |
| // Make sure we don't crash on implicit constructors. |
| EXPECT_TRUE(notMatches("class X {}; X x;", |
| declaratorDecl(hasTypeLoc(loc(asString("int")))))); |
| } |
| |
| |
| TEST(Callee, MatchesDeclarations) { |
| StatementMatcher CallMethodX = callExpr(callee(cxxMethodDecl(hasName("x")))); |
| |
| EXPECT_TRUE(matches("class Y { void x() { x(); } };", CallMethodX)); |
| EXPECT_TRUE(notMatches("class Y { void x() {} };", CallMethodX)); |
| |
| CallMethodX = callExpr(callee(cxxConversionDecl())); |
| EXPECT_TRUE( |
| matches("struct Y { operator int() const; }; int i = Y();", CallMethodX)); |
| EXPECT_TRUE(notMatches("struct Y { operator int() const; }; Y y = Y();", |
| CallMethodX)); |
| } |
| |
| TEST(Callee, MatchesMemberExpressions) { |
| EXPECT_TRUE(matches("class Y { void x() { this->x(); } };", |
| callExpr(callee(memberExpr())))); |
| EXPECT_TRUE( |
| notMatches("class Y { void x() { this->x(); } };", callExpr(callee(callExpr())))); |
| } |
| |
| TEST(Matcher, Argument) { |
| StatementMatcher CallArgumentY = callExpr( |
| hasArgument(0, declRefExpr(to(varDecl(hasName("y")))))); |
| |
| EXPECT_TRUE(matches("void x(int) { int y; x(y); }", CallArgumentY)); |
| EXPECT_TRUE( |
| matches("class X { void x(int) { int y; x(y); } };", CallArgumentY)); |
| EXPECT_TRUE(notMatches("void x(int) { int z; x(z); }", CallArgumentY)); |
| |
| StatementMatcher WrongIndex = callExpr( |
| hasArgument(42, declRefExpr(to(varDecl(hasName("y")))))); |
| EXPECT_TRUE(notMatches("void x(int) { int y; x(y); }", WrongIndex)); |
| } |
| |
| TEST(Matcher, AnyArgument) { |
| auto HasArgumentY = hasAnyArgument( |
| ignoringParenImpCasts(declRefExpr(to(varDecl(hasName("y")))))); |
| StatementMatcher CallArgumentY = callExpr(HasArgumentY); |
| StatementMatcher CtorArgumentY = cxxConstructExpr(HasArgumentY); |
| StatementMatcher UnresolvedCtorArgumentY = |
| cxxUnresolvedConstructExpr(HasArgumentY); |
| StatementMatcher ObjCCallArgumentY = objcMessageExpr(HasArgumentY); |
| EXPECT_TRUE(matches("void x(int, int) { int y; x(1, y); }", CallArgumentY)); |
| EXPECT_TRUE(matches("void x(int, int) { int y; x(y, 42); }", CallArgumentY)); |
| EXPECT_TRUE(matches("struct Y { Y(int, int); };" |
| "void x() { int y; (void)Y(1, y); }", |
| CtorArgumentY)); |
| EXPECT_TRUE(matches("struct Y { Y(int, int); };" |
| "void x() { int y; (void)Y(y, 42); }", |
| CtorArgumentY)); |
| EXPECT_TRUE(matches("template <class Y> void x() { int y; (void)Y(1, y); }", |
| UnresolvedCtorArgumentY)); |
| EXPECT_TRUE(matches("template <class Y> void x() { int y; (void)Y(y, 42); }", |
| UnresolvedCtorArgumentY)); |
| EXPECT_TRUE(matchesObjC("@interface I -(void)f:(int) y; @end " |
| "void x(I* i) { int y; [i f:y]; }", |
| ObjCCallArgumentY)); |
| EXPECT_FALSE(matchesObjC("@interface I -(void)f:(int) z; @end " |
| "void x(I* i) { int z; [i f:z]; }", |
| ObjCCallArgumentY)); |
| EXPECT_TRUE(notMatches("void x(int, int) { x(1, 2); }", CallArgumentY)); |
| EXPECT_TRUE(notMatches("struct Y { Y(int, int); };" |
| "void x() { int y; (void)Y(1, 2); }", |
| CtorArgumentY)); |
| EXPECT_TRUE(notMatches("template <class Y>" |
| "void x() { int y; (void)Y(1, 2); }", |
| UnresolvedCtorArgumentY)); |
| |
| StatementMatcher ImplicitCastedArgument = callExpr( |
| hasAnyArgument(implicitCastExpr())); |
| EXPECT_TRUE(matches("void x(long) { int y; x(y); }", ImplicitCastedArgument)); |
| } |
| |
| TEST(Matcher, HasReceiver) { |
| EXPECT_TRUE(matchesObjC( |
| "@interface NSString @end " |
| "void f(NSString *x) {" |
| "[x containsString];" |
| "}", |
| objcMessageExpr(hasReceiver(declRefExpr(to(varDecl(hasName("x")))))))); |
| |
| EXPECT_FALSE(matchesObjC( |
| "@interface NSString +(NSString *) stringWithFormat; @end " |
| "void f() { [NSString stringWithFormat]; }", |
| objcMessageExpr(hasReceiver(declRefExpr(to(varDecl(hasName("x")))))))); |
| } |
| |
| TEST(Matcher, isClassMessage) { |
| EXPECT_TRUE(matchesObjC( |
| "@interface NSString +(NSString *) stringWithFormat; @end " |
| "void f() { [NSString stringWithFormat]; }", |
| objcMessageExpr(isClassMessage()))); |
| |
| EXPECT_FALSE(matchesObjC( |
| "@interface NSString @end " |
| "void f(NSString *x) {" |
| "[x containsString];" |
| "}", |
| objcMessageExpr(isClassMessage()))); |
| } |
| |
| TEST(Matcher, isInstanceMessage) { |
| EXPECT_TRUE(matchesObjC( |
| "@interface NSString @end " |
| "void f(NSString *x) {" |
| "[x containsString];" |
| "}", |
| objcMessageExpr(isInstanceMessage()))); |
| |
| EXPECT_FALSE(matchesObjC( |
| "@interface NSString +(NSString *) stringWithFormat; @end " |
| "void f() { [NSString stringWithFormat]; }", |
| objcMessageExpr(isInstanceMessage()))); |
| |
| } |
| |
| TEST(Matcher, isClassMethod) { |
| EXPECT_TRUE(matchesObjC( |
| "@interface Bar + (void)bar; @end", |
| objcMethodDecl(isClassMethod()))); |
| |
| EXPECT_TRUE(matchesObjC( |
| "@interface Bar @end" |
| "@implementation Bar + (void)bar {} @end", |
| objcMethodDecl(isClassMethod()))); |
| |
| EXPECT_FALSE(matchesObjC( |
| "@interface Foo - (void)foo; @end", |
| objcMethodDecl(isClassMethod()))); |
| |
| EXPECT_FALSE(matchesObjC( |
| "@interface Foo @end " |
| "@implementation Foo - (void)foo {} @end", |
| objcMethodDecl(isClassMethod()))); |
| } |
| |
| TEST(Matcher, isInstanceMethod) { |
| EXPECT_TRUE(matchesObjC( |
| "@interface Foo - (void)foo; @end", |
| objcMethodDecl(isInstanceMethod()))); |
| |
| EXPECT_TRUE(matchesObjC( |
| "@interface Foo @end " |
| "@implementation Foo - (void)foo {} @end", |
| objcMethodDecl(isInstanceMethod()))); |
| |
| EXPECT_FALSE(matchesObjC( |
| "@interface Bar + (void)bar; @end", |
| objcMethodDecl(isInstanceMethod()))); |
| |
| EXPECT_FALSE(matchesObjC( |
| "@interface Bar @end" |
| "@implementation Bar + (void)bar {} @end", |
| objcMethodDecl(isInstanceMethod()))); |
| } |
| |
| TEST(MatcherCXXMemberCallExpr, On) { |
| auto Snippet1 = R"cc( |
| struct Y { |
| void m(); |
| }; |
| void z(Y y) { y.m(); } |
| )cc"; |
| auto Snippet2 = R"cc( |
| struct Y { |
| void m(); |
| }; |
| struct X : public Y {}; |
| void z(X x) { x.m(); } |
| )cc"; |
| auto MatchesY = cxxMemberCallExpr(on(hasType(cxxRecordDecl(hasName("Y"))))); |
| EXPECT_TRUE(matches(Snippet1, MatchesY)); |
| EXPECT_TRUE(notMatches(Snippet2, MatchesY)); |
| |
| auto MatchesX = cxxMemberCallExpr(on(hasType(cxxRecordDecl(hasName("X"))))); |
| EXPECT_TRUE(matches(Snippet2, MatchesX)); |
| |
| // Parens are ignored. |
| auto Snippet3 = R"cc( |
| struct Y { |
| void m(); |
| }; |
| Y g(); |
| void z(Y y) { (g()).m(); } |
| )cc"; |
| auto MatchesCall = cxxMemberCallExpr(on(callExpr())); |
| EXPECT_TRUE(matches(Snippet3, MatchesCall)); |
| } |
| |
| TEST(MatcherCXXMemberCallExpr, OnImplicitObjectArgument) { |
| auto Snippet1 = R"cc( |
| struct Y { |
| void m(); |
| }; |
| void z(Y y) { y.m(); } |
| )cc"; |
| auto Snippet2 = R"cc( |
| struct Y { |
| void m(); |
| }; |
| struct X : public Y {}; |
| void z(X x) { x.m(); } |
| )cc"; |
| auto MatchesY = cxxMemberCallExpr( |
| onImplicitObjectArgument(hasType(cxxRecordDecl(hasName("Y"))))); |
| EXPECT_TRUE(matches(Snippet1, MatchesY)); |
| EXPECT_TRUE(matches(Snippet2, MatchesY)); |
| |
| auto MatchesX = cxxMemberCallExpr( |
| onImplicitObjectArgument(hasType(cxxRecordDecl(hasName("X"))))); |
| EXPECT_TRUE(notMatches(Snippet2, MatchesX)); |
| |
| // Parens are not ignored. |
| auto Snippet3 = R"cc( |
| struct Y { |
| void m(); |
| }; |
| Y g(); |
| void z(Y y) { (g()).m(); } |
| )cc"; |
| auto MatchesCall = cxxMemberCallExpr(onImplicitObjectArgument(callExpr())); |
| EXPECT_TRUE(notMatches(Snippet3, MatchesCall)); |
| } |
| |
| TEST(Matcher, HasObjectExpr) { |
| auto Snippet1 = R"cc( |
| struct X { |
| int m; |
| int f(X x) { return x.m; } |
| }; |
| )cc"; |
| auto Snippet2 = R"cc( |
| struct X { |
| int m; |
| int f(X x) { return m; } |
| }; |
| )cc"; |
| auto MatchesX = |
| memberExpr(hasObjectExpression(hasType(cxxRecordDecl(hasName("X"))))); |
| EXPECT_TRUE(matches(Snippet1, MatchesX)); |
| EXPECT_TRUE(notMatches(Snippet2, MatchesX)); |
| |
| auto MatchesXPointer = memberExpr( |
| hasObjectExpression(hasType(pointsTo(cxxRecordDecl(hasName("X")))))); |
| EXPECT_TRUE(notMatches(Snippet1, MatchesXPointer)); |
| EXPECT_TRUE(matches(Snippet2, MatchesXPointer)); |
| } |
| |
| TEST(ForEachArgumentWithParam, ReportsNoFalsePositives) { |
| StatementMatcher ArgumentY = |
| declRefExpr(to(varDecl(hasName("y")))).bind("arg"); |
| DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); |
| StatementMatcher CallExpr = |
| callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); |
| |
| // IntParam does not match. |
| EXPECT_TRUE(notMatches("void f(int* i) { int* y; f(y); }", CallExpr)); |
| // ArgumentY does not match. |
| EXPECT_TRUE(notMatches("void f(int i) { int x; f(x); }", CallExpr)); |
| } |
| |
| TEST(ForEachArgumentWithParam, MatchesCXXMemberCallExpr) { |
| StatementMatcher ArgumentY = |
| declRefExpr(to(varDecl(hasName("y")))).bind("arg"); |
| DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); |
| StatementMatcher CallExpr = |
| callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "struct S {" |
| " const S& operator[](int i) { return *this; }" |
| "};" |
| "void f(S S1) {" |
| " int y = 1;" |
| " S1[y];" |
| "}", |
| CallExpr, std::make_unique<VerifyIdIsBoundTo<ParmVarDecl>>("param", 1))); |
| |
| StatementMatcher CallExpr2 = |
| callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "struct S {" |
| " static void g(int i);" |
| "};" |
| "void f() {" |
| " int y = 1;" |
| " S::g(y);" |
| "}", |
| CallExpr2, std::make_unique<VerifyIdIsBoundTo<ParmVarDecl>>("param", 1))); |
| } |
| |
| TEST(ForEachArgumentWithParam, MatchesCallExpr) { |
| StatementMatcher ArgumentY = |
| declRefExpr(to(varDecl(hasName("y")))).bind("arg"); |
| DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); |
| StatementMatcher CallExpr = |
| callExpr(forEachArgumentWithParam(ArgumentY, IntParam)); |
| |
| EXPECT_TRUE( |
| matchAndVerifyResultTrue("void f(int i) { int y; f(y); }", CallExpr, |
| std::make_unique<VerifyIdIsBoundTo<ParmVarDecl>>( |
| "param"))); |
| EXPECT_TRUE( |
| matchAndVerifyResultTrue("void f(int i) { int y; f(y); }", CallExpr, |
| std::make_unique<VerifyIdIsBoundTo<DeclRefExpr>>( |
| "arg"))); |
| |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void f(int i, int j) { int y; f(y, y); }", CallExpr, |
| std::make_unique<VerifyIdIsBoundTo<ParmVarDecl>>("param", 2))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void f(int i, int j) { int y; f(y, y); }", CallExpr, |
| std::make_unique<VerifyIdIsBoundTo<DeclRefExpr>>("arg", 2))); |
| } |
| |
| TEST(ForEachArgumentWithParam, MatchesConstructExpr) { |
| StatementMatcher ArgumentY = |
| declRefExpr(to(varDecl(hasName("y")))).bind("arg"); |
| DeclarationMatcher IntParam = parmVarDecl(hasType(isInteger())).bind("param"); |
| StatementMatcher ConstructExpr = |
| cxxConstructExpr(forEachArgumentWithParam(ArgumentY, IntParam)); |
| |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "struct C {" |
| " C(int i) {}" |
| "};" |
| "int y = 0;" |
| "C Obj(y);", |
| ConstructExpr, |
| std::make_unique<VerifyIdIsBoundTo<ParmVarDecl>>("param"))); |
| } |
| |
| TEST(ForEachArgumentWithParam, HandlesBoundNodesForNonMatches) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void g(int i, int j) {" |
| " int a;" |
| " int b;" |
| " int c;" |
| " g(a, 0);" |
| " g(a, b);" |
| " g(0, b);" |
| "}", |
| functionDecl( |
| forEachDescendant(varDecl().bind("v")), |
| forEachDescendant(callExpr(forEachArgumentWithParam( |
| declRefExpr(to(decl(equalsBoundNode("v")))), parmVarDecl())))), |
| std::make_unique<VerifyIdIsBoundTo<VarDecl>>("v", 4))); |
| } |
| |
| TEST(QualType, hasCanonicalType) { |
| EXPECT_TRUE(notMatches("typedef int &int_ref;" |
| "int a;" |
| "int_ref b = a;", |
| varDecl(hasType(qualType(referenceType()))))); |
| EXPECT_TRUE( |
| matches("typedef int &int_ref;" |
| "int a;" |
| "int_ref b = a;", |
| varDecl(hasType(qualType(hasCanonicalType(referenceType())))))); |
| } |
| |
| TEST(HasParameter, CallsInnerMatcher) { |
| EXPECT_TRUE(matches("class X { void x(int) {} };", |
| cxxMethodDecl(hasParameter(0, varDecl())))); |
| EXPECT_TRUE(notMatches("class X { void x(int) {} };", |
| cxxMethodDecl(hasParameter(0, hasName("x"))))); |
| EXPECT_TRUE(matchesObjC("@interface I -(void)f:(int) x; @end", |
| objcMethodDecl(hasParameter(0, hasName("x"))))); |
| EXPECT_TRUE(matchesObjC("int main() { void (^b)(int) = ^(int p) {}; }", |
| blockDecl(hasParameter(0, hasName("p"))))); |
| } |
| |
| TEST(HasParameter, DoesNotMatchIfIndexOutOfBounds) { |
| EXPECT_TRUE(notMatches("class X { void x(int) {} };", |
| cxxMethodDecl(hasParameter(42, varDecl())))); |
| } |
| |
| TEST(HasType, MatchesParameterVariableTypesStrictly) { |
| EXPECT_TRUE(matches( |
| "class X { void x(X x) {} };", |
| cxxMethodDecl(hasParameter(0, hasType(recordDecl(hasName("X"))))))); |
| EXPECT_TRUE(notMatches( |
| "class X { void x(const X &x) {} };", |
| cxxMethodDecl(hasParameter(0, hasType(recordDecl(hasName("X"))))))); |
| EXPECT_TRUE(matches("class X { void x(const X *x) {} };", |
| cxxMethodDecl(hasParameter( |
| 0, hasType(pointsTo(recordDecl(hasName("X")))))))); |
| EXPECT_TRUE(matches("class X { void x(const X &x) {} };", |
| cxxMethodDecl(hasParameter( |
| 0, hasType(references(recordDecl(hasName("X")))))))); |
| } |
| |
| TEST(HasAnyParameter, MatchesIndependentlyOfPosition) { |
| EXPECT_TRUE(matches( |
| "class Y {}; class X { void x(X x, Y y) {} };", |
| cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); |
| EXPECT_TRUE(matches( |
| "class Y {}; class X { void x(Y y, X x) {} };", |
| cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); |
| EXPECT_TRUE(matchesObjC("@interface I -(void)f:(int) x; @end", |
| objcMethodDecl(hasAnyParameter(hasName("x"))))); |
| EXPECT_TRUE(matchesObjC("int main() { void (^b)(int) = ^(int p) {}; }", |
| blockDecl(hasAnyParameter(hasName("p"))))); |
| } |
| |
| TEST(Returns, MatchesReturnTypes) { |
| EXPECT_TRUE(matches("class Y { int f() { return 1; } };", |
| functionDecl(returns(asString("int"))))); |
| EXPECT_TRUE(notMatches("class Y { int f() { return 1; } };", |
| functionDecl(returns(asString("float"))))); |
| EXPECT_TRUE(matches("class Y { Y getMe() { return *this; } };", |
| functionDecl(returns(hasDeclaration( |
| recordDecl(hasName("Y"))))))); |
| } |
| |
| TEST(HasAnyParameter, DoesntMatchIfInnerMatcherDoesntMatch) { |
| EXPECT_TRUE(notMatches( |
| "class Y {}; class X { void x(int) {} };", |
| cxxMethodDecl(hasAnyParameter(hasType(recordDecl(hasName("X"))))))); |
| } |
| |
| TEST(HasAnyParameter, DoesNotMatchThisPointer) { |
| EXPECT_TRUE(notMatches("class Y {}; class X { void x() {} };", |
| cxxMethodDecl(hasAnyParameter( |
| hasType(pointsTo(recordDecl(hasName("X")))))))); |
| } |
| |
| TEST(HasName, MatchesParameterVariableDeclarations) { |
| EXPECT_TRUE(matches("class Y {}; class X { void x(int x) {} };", |
| cxxMethodDecl(hasAnyParameter(hasName("x"))))); |
| EXPECT_TRUE(notMatches("class Y {}; class X { void x(int) {} };", |
| cxxMethodDecl(hasAnyParameter(hasName("x"))))); |
| } |
| |
| TEST(Matcher, MatchesTypeTemplateArgument) { |
| EXPECT_TRUE(matches( |
| "template<typename T> struct B {};" |
| "B<int> b;", |
| classTemplateSpecializationDecl(hasAnyTemplateArgument(refersToType( |
| asString("int")))))); |
| } |
| |
| TEST(Matcher, MatchesTemplateTemplateArgument) { |
| EXPECT_TRUE(matches("template<template <typename> class S> class X {};" |
| "template<typename T> class Y {};" |
| "X<Y> xi;", |
| classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| refersToTemplate(templateName()))))); |
| } |
| |
| TEST(Matcher, MatchesDeclarationReferenceTemplateArgument) { |
| EXPECT_TRUE(matches( |
| "struct B { int next; };" |
| "template<int(B::*next_ptr)> struct A {};" |
| "A<&B::next> a;", |
| classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| refersToDeclaration(fieldDecl(hasName("next"))))))); |
| |
| EXPECT_TRUE(notMatches( |
| "template <typename T> struct A {};" |
| "A<int> a;", |
| classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| refersToDeclaration(decl()))))); |
| |
| EXPECT_TRUE(matches( |
| "struct B { int next; };" |
| "template<int(B::*next_ptr)> struct A {};" |
| "A<&B::next> a;", |
| templateSpecializationType(hasAnyTemplateArgument(isExpr( |
| hasDescendant(declRefExpr(to(fieldDecl(hasName("next")))))))))); |
| |
| EXPECT_TRUE(notMatches( |
| "template <typename T> struct A {};" |
| "A<int> a;", |
| templateSpecializationType(hasAnyTemplateArgument( |
| refersToDeclaration(decl()))))); |
| } |
| |
| |
| TEST(Matcher, MatchesSpecificArgument) { |
| EXPECT_TRUE(matches( |
| "template<typename T, typename U> class A {};" |
| "A<bool, int> a;", |
| classTemplateSpecializationDecl(hasTemplateArgument( |
| 1, refersToType(asString("int")))))); |
| EXPECT_TRUE(notMatches( |
| "template<typename T, typename U> class A {};" |
| "A<int, bool> a;", |
| classTemplateSpecializationDecl(hasTemplateArgument( |
| 1, refersToType(asString("int")))))); |
| |
| EXPECT_TRUE(matches( |
| "template<typename T, typename U> class A {};" |
| "A<bool, int> a;", |
| templateSpecializationType(hasTemplateArgument( |
| 1, refersToType(asString("int")))))); |
| EXPECT_TRUE(notMatches( |
| "template<typename T, typename U> class A {};" |
| "A<int, bool> a;", |
| templateSpecializationType(hasTemplateArgument( |
| 1, refersToType(asString("int")))))); |
| |
| EXPECT_TRUE(matches( |
| "template<typename T> void f() {};" |
| "void func() { f<int>(); }", |
| functionDecl(hasTemplateArgument(0, refersToType(asString("int")))))); |
| EXPECT_TRUE(notMatches( |
| "template<typename T> void f() {};", |
| functionDecl(hasTemplateArgument(0, refersToType(asString("int")))))); |
| } |
| |
| TEST(TemplateArgument, Matches) { |
| EXPECT_TRUE(matches("template<typename T> struct C {}; C<int> c;", |
| classTemplateSpecializationDecl( |
| hasAnyTemplateArgument(templateArgument())))); |
| EXPECT_TRUE(matches( |
| "template<typename T> struct C {}; C<int> c;", |
| templateSpecializationType(hasAnyTemplateArgument(templateArgument())))); |
| |
| EXPECT_TRUE(matches( |
| "template<typename T> void f() {};" |
| "void func() { f<int>(); }", |
| functionDecl(hasAnyTemplateArgument(templateArgument())))); |
| } |
| |
| TEST(TemplateTypeParmDecl, CXXMethodDecl) { |
| const char input[] = |
| "template<typename T>\n" |
| "class Class {\n" |
| " void method();\n" |
| "};\n" |
| "template<typename U>\n" |
| "void Class<U>::method() {}\n"; |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U")))); |
| } |
| |
| TEST(TemplateTypeParmDecl, VarDecl) { |
| const char input[] = |
| "template<typename T>\n" |
| "class Class {\n" |
| " static T pi;\n" |
| "};\n" |
| "template<typename U>\n" |
| "U Class<U>::pi = U(3.1415926535897932385);\n"; |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U")))); |
| } |
| |
| TEST(TemplateTypeParmDecl, VarTemplatePartialSpecializationDecl) { |
| const char input[] = |
| "template<typename T>\n" |
| "struct Struct {\n" |
| " template<typename T2> static int field;\n" |
| "};\n" |
| "template<typename U>\n" |
| "template<typename U2>\n" |
| "int Struct<U>::field<U2*> = 123;\n"; |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T2")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U2")))); |
| } |
| |
| TEST(TemplateTypeParmDecl, ClassTemplatePartialSpecializationDecl) { |
| const char input[] = |
| "template<typename T>\n" |
| "class Class {\n" |
| " template<typename T2> struct Struct;\n" |
| "};\n" |
| "template<typename U>\n" |
| "template<typename U2>\n" |
| "struct Class<U>::Struct<U2*> {};\n"; |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T2")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U2")))); |
| } |
| |
| TEST(TemplateTypeParmDecl, EnumDecl) { |
| const char input[] = |
| "template<typename T>\n" |
| "struct Struct {\n" |
| " enum class Enum : T;\n" |
| "};\n" |
| "template<typename U>\n" |
| "enum class Struct<U>::Enum : U {\n" |
| " e1,\n" |
| " e2\n" |
| "};\n"; |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U")))); |
| } |
| |
| TEST(TemplateTypeParmDecl, RecordDecl) { |
| const char input[] = |
| "template<typename T>\n" |
| "class Class {\n" |
| " struct Struct;\n" |
| "};\n" |
| "template<typename U>\n" |
| "struct Class<U>::Struct {\n" |
| " U field;\n" |
| "};\n"; |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("T")))); |
| EXPECT_TRUE(matches(input, templateTypeParmDecl(hasName("U")))); |
| } |
| |
| TEST(RefersToIntegralType, Matches) { |
| EXPECT_TRUE(matches("template<int T> struct C {}; C<42> c;", |
| classTemplateSpecializationDecl( |
| hasAnyTemplateArgument(refersToIntegralType( |
| asString("int")))))); |
| EXPECT_TRUE(notMatches("template<unsigned T> struct C {}; C<42> c;", |
| classTemplateSpecializationDecl(hasAnyTemplateArgument( |
| refersToIntegralType(asString("int")))))); |
| } |
| |
| TEST(ConstructorDeclaration, SimpleCase) { |
| EXPECT_TRUE(matches("class Foo { Foo(int i); };", |
| cxxConstructorDecl(ofClass(hasName("Foo"))))); |
| EXPECT_TRUE(notMatches("class Foo { Foo(int i); };", |
| cxxConstructorDecl(ofClass(hasName("Bar"))))); |
| } |
| |
| TEST(DestructorDeclaration, MatchesVirtualDestructor) { |
| EXPECT_TRUE(matches("class Foo { virtual ~Foo(); };", |
| cxxDestructorDecl(ofClass(hasName("Foo"))))); |
| } |
| |
| TEST(DestructorDeclaration, DoesNotMatchImplicitDestructor) { |
| EXPECT_TRUE(notMatches("class Foo {};", |
| cxxDestructorDecl(ofClass(hasName("Foo"))))); |
| } |
| |
| TEST(HasAnyConstructorInitializer, SimpleCase) { |
| EXPECT_TRUE( |
| notMatches("class Foo { Foo() { } };", |
| cxxConstructorDecl(hasAnyConstructorInitializer(anything())))); |
| EXPECT_TRUE( |
| matches("class Foo {" |
| " Foo() : foo_() { }" |
| " int foo_;" |
| "};", |
| cxxConstructorDecl(hasAnyConstructorInitializer(anything())))); |
| } |
| |
| TEST(HasAnyConstructorInitializer, ForField) { |
| static const char Code[] = |
| "class Baz { };" |
| "class Foo {" |
| " Foo() : foo_(), bar_() { }" |
| " Baz foo_;" |
| " struct {" |
| " Baz bar_;" |
| " };" |
| "};"; |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| forField(hasType(recordDecl(hasName("Baz")))))))); |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| forField(hasName("foo_")))))); |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| forField(hasName("bar_")))))); |
| EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| forField(hasType(recordDecl(hasName("Bar")))))))); |
| } |
| |
| TEST(HasAnyConstructorInitializer, WithInitializer) { |
| static const char Code[] = |
| "class Foo {" |
| " Foo() : foo_(0) { }" |
| " int foo_;" |
| "};"; |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| withInitializer(integerLiteral(equals(0))))))); |
| EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| withInitializer(integerLiteral(equals(1))))))); |
| } |
| |
| TEST(HasAnyConstructorInitializer, IsWritten) { |
| static const char Code[] = |
| "struct Bar { Bar(){} };" |
| "class Foo {" |
| " Foo() : foo_() { }" |
| " Bar foo_;" |
| " Bar bar_;" |
| "};"; |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| allOf(forField(hasName("foo_")), isWritten()))))); |
| EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| allOf(forField(hasName("bar_")), isWritten()))))); |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(hasAnyConstructorInitializer( |
| allOf(forField(hasName("bar_")), unless(isWritten())))))); |
| } |
| |
| TEST(HasAnyConstructorInitializer, IsBaseInitializer) { |
| static const char Code[] = |
| "struct B {};" |
| "struct D : B {" |
| " int I;" |
| " D(int i) : I(i) {}" |
| "};" |
| "struct E : B {" |
| " E() : B() {}" |
| "};"; |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(allOf( |
| hasAnyConstructorInitializer(allOf(isBaseInitializer(), isWritten())), |
| hasName("E"))))); |
| EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(allOf( |
| hasAnyConstructorInitializer(allOf(isBaseInitializer(), isWritten())), |
| hasName("D"))))); |
| EXPECT_TRUE(matches(Code, cxxConstructorDecl(allOf( |
| hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())), |
| hasName("D"))))); |
| EXPECT_TRUE(notMatches(Code, cxxConstructorDecl(allOf( |
| hasAnyConstructorInitializer(allOf(isMemberInitializer(), isWritten())), |
| hasName("E"))))); |
| } |
| |
| TEST(IfStmt, ChildTraversalMatchers) { |
| EXPECT_TRUE(matches("void f() { if (false) true; else false; }", |
| ifStmt(hasThen(cxxBoolLiteral(equals(true)))))); |
| EXPECT_TRUE(notMatches("void f() { if (false) false; else true; }", |
| ifStmt(hasThen(cxxBoolLiteral(equals(true)))))); |
| EXPECT_TRUE(matches("void f() { if (false) false; else true; }", |
| ifStmt(hasElse(cxxBoolLiteral(equals(true)))))); |
| EXPECT_TRUE(notMatches("void f() { if (false) true; else false; }", |
| ifStmt(hasElse(cxxBoolLiteral(equals(true)))))); |
| } |
| |
| TEST(MatchBinaryOperator, HasOperatorName) { |
| StatementMatcher OperatorOr = binaryOperator(hasOperatorName("||")); |
| |
| EXPECT_TRUE(matches("void x() { true || false; }", OperatorOr)); |
| EXPECT_TRUE(notMatches("void x() { true && false; }", OperatorOr)); |
| } |
| |
| TEST(MatchBinaryOperator, HasLHSAndHasRHS) { |
| StatementMatcher OperatorTrueFalse = |
| binaryOperator(hasLHS(cxxBoolLiteral(equals(true))), |
| hasRHS(cxxBoolLiteral(equals(false)))); |
| |
| EXPECT_TRUE(matches("void x() { true || false; }", OperatorTrueFalse)); |
| EXPECT_TRUE(matches("void x() { true && false; }", OperatorTrueFalse)); |
| EXPECT_TRUE(notMatches("void x() { false || true; }", OperatorTrueFalse)); |
| |
| StatementMatcher OperatorIntPointer = arraySubscriptExpr( |
| hasLHS(hasType(isInteger())), hasRHS(hasType(pointsTo(qualType())))); |
| EXPECT_TRUE(matches("void x() { 1[\"abc\"]; }", OperatorIntPointer)); |
| EXPECT_TRUE(notMatches("void x() { \"abc\"[1]; }", OperatorIntPointer)); |
| } |
| |
| TEST(MatchBinaryOperator, HasEitherOperand) { |
| StatementMatcher HasOperand = |
| binaryOperator(hasEitherOperand(cxxBoolLiteral(equals(false)))); |
| |
| EXPECT_TRUE(matches("void x() { true || false; }", HasOperand)); |
| EXPECT_TRUE(matches("void x() { false && true; }", HasOperand)); |
| EXPECT_TRUE(notMatches("void x() { true || true; }", HasOperand)); |
| } |
| |
| TEST(Matcher, BinaryOperatorTypes) { |
| // Integration test that verifies the AST provides all binary operators in |
| // a way we expect. |
| // FIXME: Operator ',' |
| EXPECT_TRUE( |
| matches("void x() { 3, 4; }", binaryOperator(hasOperatorName(",")))); |
| EXPECT_TRUE( |
| matches("bool b; bool c = (b = true);", |
| binaryOperator(hasOperatorName("=")))); |
| EXPECT_TRUE( |
| matches("bool b = 1 != 2;", binaryOperator(hasOperatorName("!=")))); |
| EXPECT_TRUE( |
| matches("bool b = 1 == 2;", binaryOperator(hasOperatorName("==")))); |
| EXPECT_TRUE(matches("bool b = 1 < 2;", binaryOperator(hasOperatorName("<")))); |
| EXPECT_TRUE( |
| matches("bool b = 1 <= 2;", binaryOperator(hasOperatorName("<=")))); |
| EXPECT_TRUE( |
| matches("int i = 1 << 2;", binaryOperator(hasOperatorName("<<")))); |
| EXPECT_TRUE( |
| matches("int i = 1; int j = (i <<= 2);", |
| binaryOperator(hasOperatorName("<<=")))); |
| EXPECT_TRUE(matches("bool b = 1 > 2;", binaryOperator(hasOperatorName(">")))); |
| EXPECT_TRUE( |
| matches("bool b = 1 >= 2;", binaryOperator(hasOperatorName(">=")))); |
| EXPECT_TRUE( |
| matches("int i = 1 >> 2;", binaryOperator(hasOperatorName(">>")))); |
| EXPECT_TRUE( |
| matches("int i = 1; int j = (i >>= 2);", |
| binaryOperator(hasOperatorName(">>=")))); |
| EXPECT_TRUE( |
| matches("int i = 42 ^ 23;", binaryOperator(hasOperatorName("^")))); |
| EXPECT_TRUE( |
| matches("int i = 42; int j = (i ^= 42);", |
| binaryOperator(hasOperatorName("^=")))); |
| EXPECT_TRUE( |
| matches("int i = 42 % 23;", binaryOperator(hasOperatorName("%")))); |
| EXPECT_TRUE( |
| matches("int i = 42; int j = (i %= 42);", |
| binaryOperator(hasOperatorName("%=")))); |
| EXPECT_TRUE( |
| matches("bool b = 42 &23;", binaryOperator(hasOperatorName("&")))); |
| EXPECT_TRUE( |
| matches("bool b = true && false;", |
| binaryOperator(hasOperatorName("&&")))); |
| EXPECT_TRUE( |
| matches("bool b = true; bool c = (b &= false);", |
| binaryOperator(hasOperatorName("&=")))); |
| EXPECT_TRUE( |
| matches("bool b = 42 | 23;", binaryOperator(hasOperatorName("|")))); |
| EXPECT_TRUE( |
| matches("bool b = true || false;", |
| binaryOperator(hasOperatorName("||")))); |
| EXPECT_TRUE( |
| matches("bool b = true; bool c = (b |= false);", |
| binaryOperator(hasOperatorName("|=")))); |
| EXPECT_TRUE( |
| matches("int i = 42 *23;", binaryOperator(hasOperatorName("*")))); |
| EXPECT_TRUE( |
| matches("int i = 42; int j = (i *= 23);", |
| binaryOperator(hasOperatorName("*=")))); |
| EXPECT_TRUE( |
| matches("int i = 42 / 23;", binaryOperator(hasOperatorName("/")))); |
| EXPECT_TRUE( |
| matches("int i = 42; int j = (i /= 23);", |
| binaryOperator(hasOperatorName("/=")))); |
| EXPECT_TRUE( |
| matches("int i = 42 + 23;", binaryOperator(hasOperatorName("+")))); |
| EXPECT_TRUE( |
| matches("int i = 42; int j = (i += 23);", |
| binaryOperator(hasOperatorName("+=")))); |
| EXPECT_TRUE( |
| matches("int i = 42 - 23;", binaryOperator(hasOperatorName("-")))); |
| EXPECT_TRUE( |
| matches("int i = 42; int j = (i -= 23);", |
| binaryOperator(hasOperatorName("-=")))); |
| EXPECT_TRUE( |
| matches("struct A { void x() { void (A::*a)(); (this->*a)(); } };", |
| binaryOperator(hasOperatorName("->*")))); |
| EXPECT_TRUE( |
| matches("struct A { void x() { void (A::*a)(); ((*this).*a)(); } };", |
| binaryOperator(hasOperatorName(".*")))); |
| |
| // Member expressions as operators are not supported in matches. |
| EXPECT_TRUE( |
| notMatches("struct A { void x(A *a) { a->x(this); } };", |
| binaryOperator(hasOperatorName("->")))); |
| |
| // Initializer assignments are not represented as operator equals. |
| EXPECT_TRUE( |
| notMatches("bool b = true;", binaryOperator(hasOperatorName("=")))); |
| |
| // Array indexing is not represented as operator. |
| EXPECT_TRUE(notMatches("int a[42]; void x() { a[23]; }", unaryOperator())); |
| |
| // Overloaded operators do not match at all. |
| EXPECT_TRUE(notMatches( |
| "struct A { bool operator&&(const A &a) const { return false; } };" |
| "void x() { A a, b; a && b; }", |
| binaryOperator())); |
| } |
| |
| TEST(MatchUnaryOperator, HasOperatorName) { |
| StatementMatcher OperatorNot = unaryOperator(hasOperatorName("!")); |
| |
| EXPECT_TRUE(matches("void x() { !true; } ", OperatorNot)); |
| EXPECT_TRUE(notMatches("void x() { true; } ", OperatorNot)); |
| } |
| |
| TEST(MatchUnaryOperator, HasUnaryOperand) { |
| StatementMatcher OperatorOnFalse = |
| unaryOperator(hasUnaryOperand(cxxBoolLiteral(equals(false)))); |
| |
| EXPECT_TRUE(matches("void x() { !false; }", OperatorOnFalse)); |
| EXPECT_TRUE(notMatches("void x() { !true; }", OperatorOnFalse)); |
| } |
| |
| TEST(Matcher, UnaryOperatorTypes) { |
| // Integration test that verifies the AST provides all unary operators in |
| // a way we expect. |
| EXPECT_TRUE(matches("bool b = !true;", unaryOperator(hasOperatorName("!")))); |
| EXPECT_TRUE( |
| matches("bool b; bool *p = &b;", unaryOperator(hasOperatorName("&")))); |
| EXPECT_TRUE(matches("int i = ~ 1;", unaryOperator(hasOperatorName("~")))); |
| EXPECT_TRUE( |
| matches("bool *p; bool b = *p;", unaryOperator(hasOperatorName("*")))); |
| EXPECT_TRUE( |
| matches("int i; int j = +i;", unaryOperator(hasOperatorName("+")))); |
| EXPECT_TRUE( |
| matches("int i; int j = -i;", unaryOperator(hasOperatorName("-")))); |
| EXPECT_TRUE( |
| matches("int i; int j = ++i;", unaryOperator(hasOperatorName("++")))); |
| EXPECT_TRUE( |
| matches("int i; int j = i++;", unaryOperator(hasOperatorName("++")))); |
| EXPECT_TRUE( |
| matches("int i; int j = --i;", unaryOperator(hasOperatorName("--")))); |
| EXPECT_TRUE( |
| matches("int i; int j = i--;", unaryOperator(hasOperatorName("--")))); |
| |
| // We don't match conversion operators. |
| EXPECT_TRUE(notMatches("int i; double d = (double)i;", unaryOperator())); |
| |
| // Function calls are not represented as operator. |
| EXPECT_TRUE(notMatches("void f(); void x() { f(); }", unaryOperator())); |
| |
| // Overloaded operators do not match at all. |
| // FIXME: We probably want to add that. |
| EXPECT_TRUE(notMatches( |
| "struct A { bool operator!() const { return false; } };" |
| "void x() { A a; !a; }", unaryOperator(hasOperatorName("!")))); |
| } |
| |
| TEST(ArraySubscriptMatchers, ArrayIndex) { |
| EXPECT_TRUE(matches( |
| "int i[2]; void f() { i[1] = 1; }", |
| arraySubscriptExpr(hasIndex(integerLiteral(equals(1)))))); |
| EXPECT_TRUE(matches( |
| "int i[2]; void f() { 1[i] = 1; }", |
| arraySubscriptExpr(hasIndex(integerLiteral(equals(1)))))); |
| EXPECT_TRUE(notMatches( |
| "int i[2]; void f() { i[1] = 1; }", |
| arraySubscriptExpr(hasIndex(integerLiteral(equals(0)))))); |
| } |
| |
| TEST(ArraySubscriptMatchers, MatchesArrayBase) { |
| EXPECT_TRUE(matches( |
| "int i[2]; void f() { i[1] = 2; }", |
| arraySubscriptExpr(hasBase(implicitCastExpr( |
| hasSourceExpression(declRefExpr())))))); |
| } |
| |
| TEST(Matcher, OfClass) { |
| StatementMatcher Constructor = cxxConstructExpr(hasDeclaration(cxxMethodDecl( |
| ofClass(hasName("X"))))); |
| |
| EXPECT_TRUE( |
| matches("class X { public: X(); }; void x(int) { X x; }", Constructor)); |
| EXPECT_TRUE( |
| matches("class X { public: X(); }; void x(int) { X x = X(); }", |
| Constructor)); |
| EXPECT_TRUE( |
| notMatches("class Y { public: Y(); }; void x(int) { Y y; }", |
| Constructor)); |
| } |
| |
| TEST(Matcher, VisitsTemplateInstantiations) { |
| EXPECT_TRUE(matches( |
| "class A { public: void x(); };" |
| "template <typename T> class B { public: void y() { T t; t.x(); } };" |
| "void f() { B<A> b; b.y(); }", |
| callExpr(callee(cxxMethodDecl(hasName("x")))))); |
| |
| EXPECT_TRUE(matches( |
| "class A { public: void x(); };" |
| "class C {" |
| " public:" |
| " template <typename T> class B { public: void y() { T t; t.x(); } };" |
| "};" |
| "void f() {" |
| " C::B<A> b; b.y();" |
| "}", |
| recordDecl(hasName("C"), hasDescendant(callExpr( |
| callee(cxxMethodDecl(hasName("x")))))))); |
| } |
| |
| TEST(Matcher, HasCondition) { |
| StatementMatcher IfStmt = |
| ifStmt(hasCondition(cxxBoolLiteral(equals(true)))); |
| EXPECT_TRUE(matches("void x() { if (true) {} }", IfStmt)); |
| EXPECT_TRUE(notMatches("void x() { if (false) {} }", IfStmt)); |
| |
| StatementMatcher ForStmt = |
| forStmt(hasCondition(cxxBoolLiteral(equals(true)))); |
| EXPECT_TRUE(matches("void x() { for (;true;) {} }", ForStmt)); |
| EXPECT_TRUE(notMatches("void x() { for (;false;) {} }", ForStmt)); |
| |
| StatementMatcher WhileStmt = |
| whileStmt(hasCondition(cxxBoolLiteral(equals(true)))); |
| EXPECT_TRUE(matches("void x() { while (true) {} }", WhileStmt)); |
| EXPECT_TRUE(notMatches("void x() { while (false) {} }", WhileStmt)); |
| |
| StatementMatcher SwitchStmt = |
| switchStmt(hasCondition(integerLiteral(equals(42)))); |
| EXPECT_TRUE(matches("void x() { switch (42) {case 42:;} }", SwitchStmt)); |
| EXPECT_TRUE(notMatches("void x() { switch (43) {case 43:;} }", SwitchStmt)); |
| } |
| |
| TEST(For, ForLoopInternals) { |
| EXPECT_TRUE(matches("void f(){ int i; for (; i < 3 ; ); }", |
| forStmt(hasCondition(anything())))); |
| EXPECT_TRUE(matches("void f() { for (int i = 0; ;); }", |
| forStmt(hasLoopInit(anything())))); |
| } |
| |
| TEST(For, ForRangeLoopInternals) { |
| EXPECT_TRUE(matches("void f(){ int a[] {1, 2}; for (int i : a); }", |
| cxxForRangeStmt(hasLoopVariable(anything())))); |
| EXPECT_TRUE(matches( |
| "void f(){ int a[] {1, 2}; for (int i : a); }", |
| cxxForRangeStmt(hasRangeInit(declRefExpr(to(varDecl(hasName("a")))))))); |
| } |
| |
| TEST(For, NegativeForLoopInternals) { |
| EXPECT_TRUE(notMatches("void f(){ for (int i = 0; ; ++i); }", |
| forStmt(hasCondition(expr())))); |
| EXPECT_TRUE(notMatches("void f() {int i; for (; i < 4; ++i) {} }", |
| forStmt(hasLoopInit(anything())))); |
| } |
| |
| TEST(HasBody, FindsBodyOfForWhileDoLoops) { |
| EXPECT_TRUE(matches("void f() { for(;;) {} }", |
| forStmt(hasBody(compoundStmt())))); |
| EXPECT_TRUE(notMatches("void f() { for(;;); }", |
| forStmt(hasBody(compoundStmt())))); |
| EXPECT_TRUE(matches("void f() { while(true) {} }", |
| whileStmt(hasBody(compoundStmt())))); |
| EXPECT_TRUE(matches("void f() { do {} while(true); }", |
| doStmt(hasBody(compoundStmt())))); |
| EXPECT_TRUE(matches("void f() { int p[2]; for (auto x : p) {} }", |
| cxxForRangeStmt(hasBody(compoundStmt())))); |
| EXPECT_TRUE(matches("void f() {}", functionDecl(hasBody(compoundStmt())))); |
| EXPECT_TRUE(notMatches("void f();", functionDecl(hasBody(compoundStmt())))); |
| EXPECT_TRUE(matches("void f(); void f() {}", |
| functionDecl(hasBody(compoundStmt())))); |
| } |
| |
| TEST(HasAnySubstatement, MatchesForTopLevelCompoundStatement) { |
| // The simplest case: every compound statement is in a function |
| // definition, and the function body itself must be a compound |
| // statement. |
| EXPECT_TRUE(matches("void f() { for (;;); }", |
| compoundStmt(hasAnySubstatement(forStmt())))); |
| } |
| |
| TEST(HasAnySubstatement, IsNotRecursive) { |
| // It's really "has any immediate substatement". |
| EXPECT_TRUE(notMatches("void f() { if (true) for (;;); }", |
| compoundStmt(hasAnySubstatement(forStmt())))); |
| } |
| |
| TEST(HasAnySubstatement, MatchesInNestedCompoundStatements) { |
| EXPECT_TRUE(matches("void f() { if (true) { for (;;); } }", |
| compoundStmt(hasAnySubstatement(forStmt())))); |
| } |
| |
| TEST(HasAnySubstatement, FindsSubstatementBetweenOthers) { |
| EXPECT_TRUE(matches("void f() { 1; 2; 3; for (;;); 4; 5; 6; }", |
| compoundStmt(hasAnySubstatement(forStmt())))); |
| } |
| |
| TEST(Member, MatchesMemberAllocationFunction) { |
| // Fails in C++11 mode |
| EXPECT_TRUE(matchesConditionally( |
| "namespace std { typedef typeof(sizeof(int)) size_t; }" |
| "class X { void *operator new(std::size_t); };", |
| cxxMethodDecl(ofClass(hasName("X"))), true, "-std=gnu++98")); |
| |
| EXPECT_TRUE(matches("class X { void operator delete(void*); };", |
| cxxMethodDecl(ofClass(hasName("X"))))); |
| |
| // Fails in C++11 mode |
| EXPECT_TRUE(matchesConditionally( |
| "namespace std { typedef typeof(sizeof(int)) size_t; }" |
| "class X { void operator delete[](void*, std::size_t); };", |
| cxxMethodDecl(ofClass(hasName("X"))), true, "-std=gnu++98")); |
| } |
| |
| TEST(HasDestinationType, MatchesSimpleCase) { |
| EXPECT_TRUE(matches("char* p = static_cast<char*>(0);", |
| cxxStaticCastExpr(hasDestinationType( |
| pointsTo(TypeMatcher(anything())))))); |
| } |
| |
| TEST(HasImplicitDestinationType, MatchesSimpleCase) { |
| // This test creates an implicit const cast. |
| EXPECT_TRUE(matches("int x; const int i = x;", |
| implicitCastExpr( |
| hasImplicitDestinationType(isInteger())))); |
| // This test creates an implicit array-to-pointer cast. |
| EXPECT_TRUE(matches("int arr[3]; int *p = arr;", |
| implicitCastExpr(hasImplicitDestinationType( |
| pointsTo(TypeMatcher(anything())))))); |
| } |
| |
| TEST(HasImplicitDestinationType, DoesNotMatchIncorrectly) { |
| // This test creates an implicit cast from int to char. |
| EXPECT_TRUE(notMatches("char c = 0;", |
| implicitCastExpr(hasImplicitDestinationType( |
| unless(anything()))))); |
| // This test creates an implicit array-to-pointer cast. |
| EXPECT_TRUE(notMatches("int arr[3]; int *p = arr;", |
| implicitCastExpr(hasImplicitDestinationType( |
| unless(anything()))))); |
| } |
| |
| TEST(Matcher, IgnoresElidableConstructors) { |
| EXPECT_TRUE( |
| matches("struct H {};" |
| "template<typename T> H B(T A);" |
| "void f() {" |
| " H D1;" |
| " D1 = B(B(1));" |
| "}", |
| cxxOperatorCallExpr(hasArgument( |
| 1, callExpr(hasArgument( |
| 0, ignoringElidableConstructorCall(callExpr()))))), |
| LanguageMode::Cxx11OrLater)); |
| EXPECT_TRUE( |
| matches("struct H {};" |
| "template<typename T> H B(T A);" |
| "void f() {" |
| " H D1;" |
| " D1 = B(1);" |
| "}", |
| cxxOperatorCallExpr(hasArgument( |
| 1, callExpr(hasArgument(0, ignoringElidableConstructorCall( |
| integerLiteral()))))), |
| LanguageMode::Cxx11OrLater)); |
| EXPECT_TRUE(matches( |
| "struct H {};" |
| "H G();" |
| "void f() {" |
| " H D = G();" |
| "}", |
| varDecl(hasInitializer(anyOf( |
| ignoringElidableConstructorCall(callExpr()), |
| exprWithCleanups(has(ignoringElidableConstructorCall(callExpr())))))), |
| LanguageMode::Cxx11OrLater)); |
| } |
| |
| TEST(Matcher, IgnoresElidableInReturn) { |
| auto matcher = expr(ignoringElidableConstructorCall(declRefExpr())); |
| EXPECT_TRUE(matches("struct H {};" |
| "H f() {" |
| " H g;" |
| " return g;" |
| "}", |
| matcher, LanguageMode::Cxx11OrLater)); |
| EXPECT_TRUE(notMatches("struct H {};" |
| "H f() {" |
| " return H();" |
| "}", |
| matcher, LanguageMode::Cxx11OrLater)); |
| } |
| |
| TEST(Matcher, IgnoreElidableConstructorDoesNotMatchConstructors) { |
| EXPECT_TRUE(matches("struct H {};" |
| "void f() {" |
| " H D;" |
| "}", |
| varDecl(hasInitializer( |
| ignoringElidableConstructorCall(cxxConstructExpr()))), |
| LanguageMode::Cxx11OrLater)); |
| } |
| |
| TEST(Matcher, IgnoresElidableDoesNotPreventMatches) { |
| EXPECT_TRUE(matches("void f() {" |
| " int D = 10;" |
| "}", |
| expr(ignoringElidableConstructorCall(integerLiteral())), |
| LanguageMode::Cxx11OrLater)); |
| } |
| |
| TEST(Matcher, IgnoresElidableInVarInit) { |
| auto matcher = |
| varDecl(hasInitializer(ignoringElidableConstructorCall(callExpr()))); |
| EXPECT_TRUE(matches("struct H {};" |
| "H G();" |
| "void f(H D = G()) {" |
| " return;" |
| "}", |
| matcher, LanguageMode::Cxx11OrLater)); |
| EXPECT_TRUE(matches("struct H {};" |
| "H G();" |
| "void f() {" |
| " H D = G();" |
| "}", |
| matcher, LanguageMode::Cxx11OrLater)); |
| } |
| |
| TEST(IgnoringImplicit, MatchesImplicit) { |
| EXPECT_TRUE(matches("class C {}; C a = C();", |
| varDecl(has(ignoringImplicit(cxxConstructExpr()))))); |
| } |
| |
| TEST(IgnoringImplicit, MatchesNestedImplicit) { |
| StringRef Code = R"( |
| |
| struct OtherType; |
| |
| struct SomeType |
| { |
| SomeType() {} |
| SomeType(const OtherType&) {} |
| SomeType& operator=(OtherType const&) { return *this; } |
| }; |
| |
| struct OtherType |
| { |
| OtherType() {} |
| ~OtherType() {} |
| }; |
| |
| OtherType something() |
| { |
| return {}; |
| } |
| |
| int main() |
| { |
| SomeType i = something(); |
| } |
| )"; |
| EXPECT_TRUE(matches(Code, varDecl( |
| hasName("i"), |
| hasInitializer(exprWithCleanups(has( |
| cxxConstructExpr(has(expr(ignoringImplicit(cxxConstructExpr( |
| has(expr(ignoringImplicit(callExpr()))) |
| ))))) |
| ))) |
| ) |
| )); |
| } |
| |
| TEST(IgnoringImplicit, DoesNotMatchIncorrectly) { |
| EXPECT_TRUE( |
| notMatches("class C {}; C a = C();", varDecl(has(cxxConstructExpr())))); |
| } |
| |
| TEST(IgnoringImpCasts, MatchesImpCasts) { |
| // This test checks that ignoringImpCasts matches when implicit casts are |
| // present and its inner matcher alone does not match. |
| // Note that this test creates an implicit const cast. |
| EXPECT_TRUE(matches("int x = 0; const int y = x;", |
| varDecl(hasInitializer(ignoringImpCasts( |
| declRefExpr(to(varDecl(hasName("x"))))))))); |
| // This test creates an implict cast from int to char. |
| EXPECT_TRUE(matches("char x = 0;", |
| varDecl(hasInitializer(ignoringImpCasts( |
| integerLiteral(equals(0))))))); |
| } |
| |
| TEST(IgnoringImpCasts, DoesNotMatchIncorrectly) { |
| // These tests verify that ignoringImpCasts does not match if the inner |
| // matcher does not match. |
| // Note that the first test creates an implicit const cast. |
| EXPECT_TRUE(notMatches("int x; const int y = x;", |
| varDecl(hasInitializer(ignoringImpCasts( |
| unless(anything())))))); |
| EXPECT_TRUE(notMatches("int x; int y = x;", |
| varDecl(hasInitializer(ignoringImpCasts( |
| unless(anything())))))); |
| |
| // These tests verify that ignoringImplictCasts does not look through explicit |
| // casts or parentheses. |
| EXPECT_TRUE(notMatches("char* p = static_cast<char*>(0);", |
| varDecl(hasInitializer(ignoringImpCasts( |
| integerLiteral()))))); |
| EXPECT_TRUE(notMatches("int i = (0);", |
| varDecl(hasInitializer(ignoringImpCasts( |
| integerLiteral()))))); |
| EXPECT_TRUE(notMatches("float i = (float)0;", |
| varDecl(hasInitializer(ignoringImpCasts( |
| integerLiteral()))))); |
| EXPECT_TRUE(notMatches("float i = float(0);", |
| varDecl(hasInitializer(ignoringImpCasts( |
| integerLiteral()))))); |
| } |
| |
| TEST(IgnoringImpCasts, MatchesWithoutImpCasts) { |
| // This test verifies that expressions that do not have implicit casts |
| // still match the inner matcher. |
| EXPECT_TRUE(matches("int x = 0; int &y = x;", |
| varDecl(hasInitializer(ignoringImpCasts( |
| declRefExpr(to(varDecl(hasName("x"))))))))); |
| } |
| |
| TEST(IgnoringParenCasts, MatchesParenCasts) { |
| // This test checks that ignoringParenCasts matches when parentheses and/or |
| // casts are present and its inner matcher alone does not match. |
| EXPECT_TRUE(matches("int x = (0);", |
| varDecl(hasInitializer(ignoringParenCasts( |
| integerLiteral(equals(0))))))); |
| EXPECT_TRUE(matches("int x = (((((0)))));", |
| varDecl(hasInitializer(ignoringParenCasts( |
| integerLiteral(equals(0))))))); |
| |
| // This test creates an implict cast from int to char in addition to the |
| // parentheses. |
| EXPECT_TRUE(matches("char x = (0);", |
| varDecl(hasInitializer(ignoringParenCasts( |
| integerLiteral(equals(0))))))); |
| |
| EXPECT_TRUE(matches("char x = (char)0;", |
| varDecl(hasInitializer(ignoringParenCasts( |
| integerLiteral(equals(0))))))); |
| EXPECT_TRUE(matches("char* p = static_cast<char*>(0);", |
| varDecl(hasInitializer(ignoringParenCasts( |
| integerLiteral(equals(0))))))); |
| } |
| |
| TEST(IgnoringParenCasts, MatchesWithoutParenCasts) { |
| // This test verifies that expressions that do not have any casts still match. |
| EXPECT_TRUE(matches("int x = 0;", |
| varDecl(hasInitializer(ignoringParenCasts( |
| integerLiteral(equals(0))))))); |
| } |
| |
| TEST(IgnoringParenCasts, DoesNotMatchIncorrectly) { |
| // These tests verify that ignoringImpCasts does not match if the inner |
| // matcher does not match. |
| EXPECT_TRUE(notMatches("int x = ((0));", |
| varDecl(hasInitializer(ignoringParenCasts( |
| unless(anything())))))); |
| |
| // This test creates an implicit cast from int to char in addition to the |
| // parentheses. |
| EXPECT_TRUE(notMatches("char x = ((0));", |
| varDecl(hasInitializer(ignoringParenCasts( |
| unless(anything())))))); |
| |
| EXPECT_TRUE(notMatches("char *x = static_cast<char *>((0));", |
| varDecl(hasInitializer(ignoringParenCasts( |
| unless(anything())))))); |
| } |
| |
| TEST(IgnoringParenAndImpCasts, MatchesParenImpCasts) { |
| // This test checks that ignoringParenAndImpCasts matches when |
| // parentheses and/or implicit casts are present and its inner matcher alone |
| // does not match. |
| // Note that this test creates an implicit const cast. |
| EXPECT_TRUE(matches("int x = 0; const int y = x;", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| declRefExpr(to(varDecl(hasName("x"))))))))); |
| // This test creates an implicit cast from int to char. |
| EXPECT_TRUE(matches("const char x = (0);", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| integerLiteral(equals(0))))))); |
| } |
| |
| TEST(IgnoringParenAndImpCasts, MatchesWithoutParenImpCasts) { |
| // This test verifies that expressions that do not have parentheses or |
| // implicit casts still match. |
| EXPECT_TRUE(matches("int x = 0; int &y = x;", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| declRefExpr(to(varDecl(hasName("x"))))))))); |
| EXPECT_TRUE(matches("int x = 0;", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| integerLiteral(equals(0))))))); |
| } |
| |
| TEST(IgnoringParenAndImpCasts, DoesNotMatchIncorrectly) { |
| // These tests verify that ignoringParenImpCasts does not match if |
| // the inner matcher does not match. |
| // This test creates an implicit cast. |
| EXPECT_TRUE(notMatches("char c = ((3));", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| unless(anything())))))); |
| // These tests verify that ignoringParenAndImplictCasts does not look |
| // through explicit casts. |
| EXPECT_TRUE(notMatches("float y = (float(0));", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| integerLiteral()))))); |
| EXPECT_TRUE(notMatches("float y = (float)0;", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| integerLiteral()))))); |
| EXPECT_TRUE(notMatches("char* p = static_cast<char*>(0);", |
| varDecl(hasInitializer(ignoringParenImpCasts( |
| integerLiteral()))))); |
| } |
| |
| TEST(HasSourceExpression, MatchesImplicitCasts) { |
| EXPECT_TRUE(matches("class string {}; class URL { public: URL(string s); };" |
| "void r() {string a_string; URL url = a_string; }", |
| implicitCastExpr( |
| hasSourceExpression(cxxConstructExpr())))); |
| } |
| |
| TEST(HasSourceExpression, MatchesExplicitCasts) { |
| EXPECT_TRUE(matches("float x = static_cast<float>(42);", |
| explicitCastExpr( |
| hasSourceExpression(hasDescendant( |
| expr(integerLiteral())))))); |
| } |
| |
| TEST(UsingDeclaration, MatchesSpecificTarget) { |
| EXPECT_TRUE(matches("namespace f { int a; void b(); } using f::b;", |
| usingDecl(hasAnyUsingShadowDecl( |
| hasTargetDecl(functionDecl()))))); |
| EXPECT_TRUE(notMatches("namespace f { int a; void b(); } using f::a;", |
| usingDecl(hasAnyUsingShadowDecl( |
| hasTargetDecl(functionDecl()))))); |
| } |
| |
| TEST(UsingDeclaration, ThroughUsingDeclaration) { |
| EXPECT_TRUE(matches( |
| "namespace a { void f(); } using a::f; void g() { f(); }", |
| declRefExpr(throughUsingDecl(anything())))); |
| EXPECT_TRUE(notMatches( |
| "namespace a { void f(); } using a::f; void g() { a::f(); }", |
| declRefExpr(throughUsingDecl(anything())))); |
| } |
| |
| TEST(SingleDecl, IsSingleDecl) { |
| StatementMatcher SingleDeclStmt = |
| declStmt(hasSingleDecl(varDecl(hasInitializer(anything())))); |
| EXPECT_TRUE(matches("void f() {int a = 4;}", SingleDeclStmt)); |
| EXPECT_TRUE(notMatches("void f() {int a;}", SingleDeclStmt)); |
| EXPECT_TRUE(notMatches("void f() {int a = 4, b = 3;}", |
| SingleDeclStmt)); |
| } |
| |
| TEST(DeclStmt, ContainsDeclaration) { |
| DeclarationMatcher MatchesInit = varDecl(hasInitializer(anything())); |
| |
| EXPECT_TRUE(matches("void f() {int a = 4;}", |
| declStmt(containsDeclaration(0, MatchesInit)))); |
| EXPECT_TRUE(matches("void f() {int a = 4, b = 3;}", |
| declStmt(containsDeclaration(0, MatchesInit), |
| containsDeclaration(1, MatchesInit)))); |
| unsigned WrongIndex = 42; |
| EXPECT_TRUE(notMatches("void f() {int a = 4, b = 3;}", |
| declStmt(containsDeclaration(WrongIndex, |
| MatchesInit)))); |
| } |
| |
| TEST(SwitchCase, MatchesEachCase) { |
| EXPECT_TRUE(notMatches("void x() { switch(42); }", |
| switchStmt(forEachSwitchCase(caseStmt())))); |
| EXPECT_TRUE(matches("void x() { switch(42) case 42:; }", |
| switchStmt(forEachSwitchCase(caseStmt())))); |
| EXPECT_TRUE(matches("void x() { switch(42) { case 42:; } }", |
| switchStmt(forEachSwitchCase(caseStmt())))); |
| EXPECT_TRUE(notMatches( |
| "void x() { if (1) switch(42) { case 42: switch (42) { default:; } } }", |
| ifStmt(has(switchStmt(forEachSwitchCase(defaultStmt())))))); |
| EXPECT_TRUE(matches("void x() { switch(42) { case 1+1: case 4:; } }", |
| switchStmt(forEachSwitchCase( |
| caseStmt(hasCaseConstant( |
| constantExpr(has(integerLiteral())))))))); |
| EXPECT_TRUE(notMatches("void x() { switch(42) { case 1+1: case 2+2:; } }", |
| switchStmt(forEachSwitchCase( |
| caseStmt(hasCaseConstant( |
| constantExpr(has(integerLiteral())))))))); |
| EXPECT_TRUE(notMatches("void x() { switch(42) { case 1 ... 2:; } }", |
| switchStmt(forEachSwitchCase( |
| caseStmt(hasCaseConstant( |
| constantExpr(has(integerLiteral())))))))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void x() { switch (42) { case 1: case 2: case 3: default:; } }", |
| switchStmt(forEachSwitchCase(caseStmt().bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<CaseStmt>>("x", 3))); |
| } |
| |
| TEST(Declaration, HasExplicitSpecifier) { |
| EXPECT_TRUE(matchesConditionally( |
| "void f();", functionDecl(hasExplicitSpecifier(constantExpr())), false, |
| "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "template<bool b> struct S { explicit operator int(); };", |
| cxxConversionDecl(hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| false, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "template<bool b> struct S { explicit(b) operator int(); };", |
| cxxConversionDecl(hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| false, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "struct S { explicit(true) operator int(); };", |
| cxxConversionDecl(hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| true, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "struct S { explicit(false) operator int(); };", |
| cxxConversionDecl(hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| true, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "template<bool b> struct S { explicit(b) S(int); };", |
| cxxConstructorDecl(hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| false, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "struct S { explicit(true) S(int); };", |
| cxxConstructorDecl(hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| true, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "struct S { explicit(false) S(int); };", |
| cxxConstructorDecl(hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| true, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally( |
| "template<typename T> struct S { S(int); };" |
| "template<bool b = true> explicit(b) S(int) -> S<int>;", |
| cxxDeductionGuideDecl( |
| hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))), |
| false, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally("template<typename T> struct S { S(int); };" |
| "explicit(true) S(int) -> S<int>;", |
| cxxDeductionGuideDecl(hasExplicitSpecifier( |
| constantExpr(has(cxxBoolLiteral())))), |
| true, "-std=c++2a")); |
| EXPECT_TRUE(matchesConditionally("template<typename T> struct S { S(int); };" |
| "explicit(false) S(int) -> S<int>;", |
| cxxDeductionGuideDecl(hasExplicitSpecifier( |
| constantExpr(has(cxxBoolLiteral())))), |
| true, "-std=c++2a")); |
| } |
| |
| TEST(ForEachConstructorInitializer, MatchesInitializers) { |
| EXPECT_TRUE(matches( |
| "struct X { X() : i(42), j(42) {} int i, j; };", |
| cxxConstructorDecl(forEachConstructorInitializer(cxxCtorInitializer())))); |
| } |
| |
| TEST(HasConditionVariableStatement, DoesNotMatchCondition) { |
| EXPECT_TRUE(notMatches( |
| "void x() { if(true) {} }", |
| ifStmt(hasConditionVariableStatement(declStmt())))); |
| EXPECT_TRUE(notMatches( |
| "void x() { int x; if((x = 42)) {} }", |
| ifStmt(hasConditionVariableStatement(declStmt())))); |
| } |
| |
| TEST(HasConditionVariableStatement, MatchesConditionVariables) { |
| EXPECT_TRUE(matches( |
| "void x() { if(int* a = 0) {} }", |
| ifStmt(hasConditionVariableStatement(declStmt())))); |
| } |
| |
| TEST(ForEach, BindsOneNode) { |
| EXPECT_TRUE(matchAndVerifyResultTrue("class C { int x; };", |
| recordDecl(hasName("C"), forEach(fieldDecl(hasName("x")).bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("x", 1))); |
| } |
| |
| TEST(ForEach, BindsMultipleNodes) { |
| EXPECT_TRUE(matchAndVerifyResultTrue("class C { int x; int y; int z; };", |
| recordDecl(hasName("C"), forEach(fieldDecl().bind("f"))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("f", 3))); |
| } |
| |
| TEST(ForEach, BindsRecursiveCombinations) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class C { class D { int x; int y; }; class E { int y; int z; }; };", |
| recordDecl(hasName("C"), |
| forEach(recordDecl(forEach(fieldDecl().bind("f"))))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("f", 4))); |
| } |
| |
| TEST(ForEachDescendant, BindsOneNode) { |
| EXPECT_TRUE(matchAndVerifyResultTrue("class C { class D { int x; }; };", |
| recordDecl(hasName("C"), |
| forEachDescendant(fieldDecl(hasName("x")).bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("x", 1))); |
| } |
| |
| TEST(ForEachDescendant, NestedForEachDescendant) { |
| DeclarationMatcher m = recordDecl( |
| isDefinition(), decl().bind("x"), hasName("C")); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A { class B { class C {}; }; };", |
| recordDecl(hasName("A"), anyOf(m, forEachDescendant(m))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", "C"))); |
| |
| // Check that a partial match of 'm' that binds 'x' in the |
| // first part of anyOf(m, anything()) will not overwrite the |
| // binding created by the earlier binding in the hasDescendant. |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A { class B { class C {}; }; };", |
| recordDecl(hasName("A"), allOf(hasDescendant(m), anyOf(m, anything()))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", "C"))); |
| } |
| |
| TEST(ForEachDescendant, BindsMultipleNodes) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class C { class D { int x; int y; }; " |
| " class E { class F { int y; int z; }; }; };", |
| recordDecl(hasName("C"), forEachDescendant(fieldDecl().bind("f"))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("f", 4))); |
| } |
| |
| TEST(ForEachDescendant, BindsRecursiveCombinations) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class C { class D { " |
| " class E { class F { class G { int y; int z; }; }; }; }; };", |
| recordDecl(hasName("C"), forEachDescendant(recordDecl( |
| forEachDescendant(fieldDecl().bind("f"))))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("f", 8))); |
| } |
| |
| TEST(ForEachDescendant, BindsCombinations) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void f() { if(true) {} if (true) {} while (true) {} if (true) {} while " |
| "(true) {} }", |
| compoundStmt(forEachDescendant(ifStmt().bind("if")), |
| forEachDescendant(whileStmt().bind("while"))), |
| std::make_unique<VerifyIdIsBoundTo<IfStmt>>("if", 6))); |
| } |
| |
| TEST(Has, DoesNotDeleteBindings) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class X { int a; };", recordDecl(decl().bind("x"), has(fieldDecl())), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| } |
| |
| TEST(LoopingMatchers, DoNotOverwritePreviousMatchResultOnFailure) { |
| // Those matchers cover all the cases where an inner matcher is called |
| // and there is not a 1:1 relationship between the match of the outer |
| // matcher and the match of the inner matcher. |
| // The pattern to look for is: |
| // ... return InnerMatcher.matches(...); ... |
| // In which case no special handling is needed. |
| // |
| // On the other hand, if there are multiple alternative matches |
| // (for example forEach*) or matches might be discarded (for example has*) |
| // the implementation must make sure that the discarded matches do not |
| // affect the bindings. |
| // When new such matchers are added, add a test here that: |
| // - matches a simple node, and binds it as the first thing in the matcher: |
| // recordDecl(decl().bind("x"), hasName("X"))) |
| // - uses the matcher under test afterwards in a way that not the first |
| // alternative is matched; for anyOf, that means the first branch |
| // would need to return false; for hasAncestor, it means that not |
| // the direct parent matches the inner matcher. |
| |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class X { int y; };", |
| recordDecl( |
| recordDecl().bind("x"), hasName("::X"), |
| anyOf(forEachDescendant(recordDecl(hasName("Y"))), anything())), |
| std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class X {};", recordDecl(recordDecl().bind("x"), hasName("::X"), |
| anyOf(unless(anything()), anything())), |
| std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "template<typename T1, typename T2> class X {}; X<float, int> x;", |
| classTemplateSpecializationDecl( |
| decl().bind("x"), |
| hasAnyTemplateArgument(refersToType(asString("int")))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class X { void f(); void g(); };", |
| cxxRecordDecl(decl().bind("x"), hasMethod(hasName("g"))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class X { X() : a(1), b(2) {} double a; int b; };", |
| recordDecl(decl().bind("x"), |
| has(cxxConstructorDecl( |
| hasAnyConstructorInitializer(forField(hasName("b")))))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void x(int, int) { x(0, 42); }", |
| callExpr(expr().bind("x"), hasAnyArgument(integerLiteral(equals(42)))), |
| std::make_unique<VerifyIdIsBoundTo<Expr>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void x(int, int y) {}", |
| functionDecl(decl().bind("x"), hasAnyParameter(hasName("y"))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void x() { return; if (true) {} }", |
| functionDecl(decl().bind("x"), |
| has(compoundStmt(hasAnySubstatement(ifStmt())))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "namespace X { void b(int); void b(); }" |
| "using X::b;", |
| usingDecl(decl().bind("x"), hasAnyUsingShadowDecl(hasTargetDecl( |
| functionDecl(parameterCountIs(1))))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A{}; class B{}; class C : B, A {};", |
| cxxRecordDecl(decl().bind("x"), isDerivedFrom("::A")), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A{}; typedef A B; typedef A C; typedef A D;" |
| "class E : A {};", |
| cxxRecordDecl(decl().bind("x"), isDerivedFrom("C")), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A { class B { void f() {} }; };", |
| functionDecl(decl().bind("x"), hasAncestor(recordDecl(hasName("::A")))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "template <typename T> struct A { struct B {" |
| " void f() { if(true) {} }" |
| "}; };" |
| "void t() { A<int>::B b; b.f(); }", |
| ifStmt(stmt().bind("x"), hasAncestor(recordDecl(hasName("::A")))), |
| std::make_unique<VerifyIdIsBoundTo<Stmt>>("x", 2))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A {};", |
| recordDecl(hasName("::A"), decl().bind("x"), unless(hasName("fooble"))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A { A() : s(), i(42) {} const char *s; int i; };", |
| cxxConstructorDecl(hasName("::A::A"), decl().bind("x"), |
| forEachConstructorInitializer(forField(hasName("i")))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 1))); |
| } |
| |
| TEST(ForEachDescendant, BindsCorrectNodes) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class C { void f(); int i; };", |
| recordDecl(hasName("C"), forEachDescendant(decl().bind("decl"))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("decl", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class C { void f() {} int i; };", |
| recordDecl(hasName("C"), forEachDescendant(decl().bind("decl"))), |
| std::make_unique<VerifyIdIsBoundTo<FunctionDecl>>("decl", 1))); |
| } |
| |
| TEST(FindAll, BindsNodeOnMatch) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A {};", |
| recordDecl(hasName("::A"), findAll(recordDecl(hasName("::A")).bind("v"))), |
| std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("v", 1))); |
| } |
| |
| TEST(FindAll, BindsDescendantNodeOnMatch) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A { int a; int b; };", |
| recordDecl(hasName("::A"), findAll(fieldDecl().bind("v"))), |
| std::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v", 2))); |
| } |
| |
| TEST(FindAll, BindsNodeAndDescendantNodesOnOneMatch) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A { int a; int b; };", |
| recordDecl(hasName("::A"), |
| findAll(decl(anyOf(recordDecl(hasName("::A")).bind("v"), |
| fieldDecl().bind("v"))))), |
| std::make_unique<VerifyIdIsBoundTo<Decl>>("v", 3))); |
| |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class A { class B {}; class C {}; };", |
| recordDecl(hasName("::A"), findAll(recordDecl(isDefinition()).bind("v"))), |
| std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("v", 3))); |
| } |
| |
| TEST(HasAncenstor, MatchesDeclarationAncestors) { |
| EXPECT_TRUE(matches( |
| "class A { class B { class C {}; }; };", |
| recordDecl(hasName("C"), hasAncestor(recordDecl(hasName("A")))))); |
| } |
| |
| TEST(HasAncenstor, FailsIfNoAncestorMatches) { |
| EXPECT_TRUE(notMatches( |
| "class A { class B { class C {}; }; };", |
| recordDecl(hasName("C"), hasAncestor(recordDecl(hasName("X")))))); |
| } |
| |
| TEST(HasAncestor, MatchesDeclarationsThatGetVisitedLater) { |
| EXPECT_TRUE(matches( |
| "class A { class B { void f() { C c; } class C {}; }; };", |
| varDecl(hasName("c"), hasType(recordDecl(hasName("C"), |
| hasAncestor(recordDecl(hasName("A")))))))); |
| } |
| |
| TEST(HasAncenstor, MatchesStatementAncestors) { |
| EXPECT_TRUE(matches( |
| "void f() { if (true) { while (false) { 42; } } }", |
| integerLiteral(equals(42), hasAncestor(ifStmt())))); |
| } |
| |
| TEST(HasAncestor, DrillsThroughDifferentHierarchies) { |
| EXPECT_TRUE(matches( |
| "void f() { if (true) { int x = 42; } }", |
| integerLiteral(equals(42), hasAncestor(functionDecl(hasName("f")))))); |
| } |
| |
| TEST(HasAncestor, BindsRecursiveCombinations) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class C { class D { class E { class F { int y; }; }; }; };", |
| fieldDecl(hasAncestor(recordDecl(hasAncestor(recordDecl().bind("r"))))), |
| std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("r", 1))); |
| } |
| |
| TEST(HasAncestor, BindsCombinationsWithHasDescendant) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class C { class D { class E { class F { int y; }; }; }; };", |
| fieldDecl(hasAncestor( |
| decl( |
| hasDescendant(recordDecl(isDefinition(), |
| hasAncestor(recordDecl()))) |
| ).bind("d") |
| )), |
| std::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("d", "E"))); |
| } |
| |
| TEST(HasAncestor, MatchesClosestAncestor) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "template <typename T> struct C {" |
| " void f(int) {" |
| " struct I { void g(T) { int x; } } i; i.g(42);" |
| " }" |
| "};" |
| "template struct C<int>;", |
| varDecl(hasName("x"), |
| hasAncestor(functionDecl(hasParameter( |
| 0, varDecl(hasType(asString("int"))))).bind("f"))).bind("v"), |
| std::make_unique<VerifyIdIsBoundTo<FunctionDecl>>("f", "g", 2))); |
| } |
| |
| TEST(HasAncestor, MatchesInTemplateInstantiations) { |
| EXPECT_TRUE(matches( |
| "template <typename T> struct A { struct B { struct C { T t; }; }; }; " |
| "A<int>::B::C a;", |
| fieldDecl(hasType(asString("int")), |
| hasAncestor(recordDecl(hasName("A")))))); |
| } |
| |
| TEST(HasAncestor, MatchesInImplicitCode) { |
| EXPECT_TRUE(matches( |
| "struct X {}; struct A { A() {} X x; };", |
| cxxConstructorDecl( |
| hasAnyConstructorInitializer(withInitializer(expr( |
| hasAncestor(recordDecl(hasName("A"))))))))); |
| } |
| |
| TEST(HasParent, MatchesOnlyParent) { |
| EXPECT_TRUE(matches( |
| "void f() { if (true) { int x = 42; } }", |
| compoundStmt(hasParent(ifStmt())))); |
| EXPECT_TRUE(notMatches( |
| "void f() { for (;;) { int x = 42; } }", |
| compoundStmt(hasParent(ifStmt())))); |
| EXPECT_TRUE(notMatches( |
| "void f() { if (true) for (;;) { int x = 42; } }", |
| compoundStmt(hasParent(ifStmt())))); |
| } |
| |
| TEST(HasAncestor, MatchesAllAncestors) { |
| EXPECT_TRUE(matches( |
| "template <typename T> struct C { static void f() { 42; } };" |
| "void t() { C<int>::f(); }", |
| integerLiteral( |
| equals(42), |
| allOf( |
| hasAncestor(cxxRecordDecl(isTemplateInstantiation())), |
| hasAncestor(cxxRecordDecl(unless(isTemplateInstantiation()))))))); |
| } |
| |
| TEST(HasAncestor, ImplicitArrayCopyCtorDeclRefExpr) { |
| EXPECT_TRUE(matches("struct MyClass {\n" |
| " int c[1];\n" |
| " static MyClass Create() { return MyClass(); }\n" |
| "};", |
| declRefExpr(to(decl(hasAncestor(decl())))))); |
| } |
| |
| TEST(HasAncestor, AnonymousUnionMemberExpr) { |
| EXPECT_TRUE(matches("int F() {\n" |
| " union { int i; };\n" |
| " return i;\n" |
| "}\n", |
| memberExpr(member(hasAncestor(decl()))))); |
| EXPECT_TRUE(matches("void f() {\n" |
| " struct {\n" |
| " struct { int a; int b; };\n" |
| " } s;\n" |
| " s.a = 4;\n" |
| "}\n", |
| memberExpr(member(hasAncestor(decl()))))); |
| EXPECT_TRUE(matches("void f() {\n" |
| " struct {\n" |
| " struct { int a; int b; };\n" |
| " } s;\n" |
| " s.a = 4;\n" |
| "}\n", |
| declRefExpr(to(decl(hasAncestor(decl())))))); |
| } |
| TEST(HasAncestor, NonParmDependentTemplateParmVarDeclRefExpr) { |
| EXPECT_TRUE(matches("struct PartitionAllocator {\n" |
| " template<typename T>\n" |
| " static int quantizedSize(int count) {\n" |
| " return count;\n" |
| " }\n" |
| " void f() { quantizedSize<int>(10); }\n" |
| "};", |
| declRefExpr(to(decl(hasAncestor(decl())))))); |
| } |
| |
| TEST(HasAncestor, AddressOfExplicitSpecializationFunction) { |
| EXPECT_TRUE(matches("template <class T> void f();\n" |
| "template <> void f<int>();\n" |
| "void (*get_f())() { return f<int>; }\n", |
| declRefExpr(to(decl(hasAncestor(decl())))))); |
| } |
| |
| TEST(HasParent, MatchesAllParents) { |
| EXPECT_TRUE(matches( |
| "template <typename T> struct C { static void f() { 42; } };" |
| "void t() { C<int>::f(); }", |
| integerLiteral( |
| equals(42), |
| hasParent(compoundStmt(hasParent(functionDecl( |
| hasParent(cxxRecordDecl(isTemplateInstantiation()))))))))); |
| EXPECT_TRUE( |
| matches("template <typename T> struct C { static void f() { 42; } };" |
| "void t() { C<int>::f(); }", |
| integerLiteral( |
| equals(42), |
| hasParent(compoundStmt(hasParent(functionDecl(hasParent( |
| cxxRecordDecl(unless(isTemplateInstantiation())))))))))); |
| EXPECT_TRUE(matches( |
| "template <typename T> struct C { static void f() { 42; } };" |
| "void t() { C<int>::f(); }", |
| integerLiteral(equals(42), |
| hasParent(compoundStmt( |
| allOf(hasParent(functionDecl(hasParent( |
| cxxRecordDecl(isTemplateInstantiation())))), |
| hasParent(functionDecl(hasParent(cxxRecordDecl( |
| unless(isTemplateInstantiation()))))))))))); |
| EXPECT_TRUE( |
| notMatches("template <typename T> struct C { static void f() {} };" |
| "void t() { C<int>::f(); }", |
| compoundStmt(hasParent(recordDecl())))); |
| } |
| |
| TEST(HasParent, NoDuplicateParents) { |
| class HasDuplicateParents : public BoundNodesCallback { |
| public: |
| bool run(const BoundNodes *Nodes) override { return false; } |
| bool run(const BoundNodes *Nodes, ASTContext *Context) override { |
| const Stmt *Node = Nodes->getNodeAs<Stmt>("node"); |
| std::set<const void *> Parents; |
| for (const auto &Parent : Context->getParents(*Node)) { |
| if (!Parents.insert(Parent.getMemoizationData()).second) { |
| return true; |
| } |
| } |
| return false; |
| } |
| }; |
| EXPECT_FALSE(matchAndVerifyResultTrue( |
| "template <typename T> int Foo() { return 1 + 2; }\n" |
| "int x = Foo<int>() + Foo<unsigned>();", |
| stmt().bind("node"), std::make_unique<HasDuplicateParents>())); |
| } |
| |
| TEST(TypeMatching, PointeeTypes) { |
| EXPECT_TRUE(matches("int b; int &a = b;", |
| referenceType(pointee(builtinType())))); |
| EXPECT_TRUE(matches("int *a;", pointerType(pointee(builtinType())))); |
| |
| EXPECT_TRUE(matches("int *a;", |
| loc(pointerType(pointee(builtinType()))))); |
| |
| EXPECT_TRUE(matches( |
| "int const *A;", |
| pointerType(pointee(isConstQualified(), builtinType())))); |
| EXPECT_TRUE(notMatches( |
| "int *A;", |
| pointerType(pointee(isConstQualified(), builtinType())))); |
| } |
| |
| TEST(ElaboratedTypeNarrowing, hasQualifier) { |
| EXPECT_TRUE(matches( |
| "namespace N {" |
| " namespace M {" |
| " class D {};" |
| " }" |
| "}" |
| "N::M::D d;", |
| elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N"))))))); |
| EXPECT_TRUE(notMatches( |
| "namespace M {" |
| " class D {};" |
| "}" |
| "M::D d;", |
| elaboratedType(hasQualifier(hasPrefix(specifiesNamespace(hasName("N"))))))); |
| EXPECT_TRUE(notMatches( |
| "struct D {" |
| "} d;", |
| elaboratedType(hasQualifier(nestedNameSpecifier())))); |
| } |
| |
| TEST(ElaboratedTypeNarrowing, namesType) { |
| EXPECT_TRUE(matches( |
| "namespace N {" |
| " namespace M {" |
| " class D {};" |
| " }" |
| "}" |
| "N::M::D d;", |
| elaboratedType(elaboratedType(namesType(recordType( |
| hasDeclaration(namedDecl(hasName("D"))))))))); |
| EXPECT_TRUE(notMatches( |
| "namespace M {" |
| " class D {};" |
| "}" |
| "M::D d;", |
| elaboratedType(elaboratedType(namesType(typedefType()))))); |
| } |
| |
| TEST(NNS, BindsNestedNameSpecifiers) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "namespace ns { struct E { struct B {}; }; } ns::E::B b;", |
| nestedNameSpecifier(specifiesType(asString("struct ns::E"))).bind("nns"), |
| std::make_unique<VerifyIdIsBoundTo<NestedNameSpecifier>>( |
| "nns", "ns::struct E::"))); |
| } |
| |
| TEST(NNS, BindsNestedNameSpecifierLocs) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "namespace ns { struct B {}; } ns::B b;", |
| loc(nestedNameSpecifier()).bind("loc"), |
| std::make_unique<VerifyIdIsBoundTo<NestedNameSpecifierLoc>>("loc", 1))); |
| } |
| |
| TEST(NNS, DescendantsOfNestedNameSpecifiers) { |
| std::string Fragment = |
| "namespace a { struct A { struct B { struct C {}; }; }; };" |
| "void f() { a::A::B::C c; }"; |
| EXPECT_TRUE(matches( |
| Fragment, |
| nestedNameSpecifier(specifiesType(asString("struct a::A::B")), |
| hasDescendant(nestedNameSpecifier( |
| specifiesNamespace(hasName("a"))))))); |
| EXPECT_TRUE(notMatches( |
| Fragment, |
| nestedNameSpecifier(specifiesType(asString("struct a::A::B")), |
| has(nestedNameSpecifier( |
| specifiesNamespace(hasName("a"))))))); |
| EXPECT_TRUE(matches( |
| Fragment, |
| nestedNameSpecifier(specifiesType(asString("struct a::A")), |
| has(nestedNameSpecifier( |
| specifiesNamespace(hasName("a"))))))); |
| |
| // Not really useful because a NestedNameSpecifier can af at most one child, |
| // but to complete the interface. |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Fragment, |
| nestedNameSpecifier(specifiesType(asString("struct a::A::B")), |
| forEach(nestedNameSpecifier().bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<NestedNameSpecifier>>("x", 1))); |
| } |
| |
| TEST(NNS, NestedNameSpecifiersAsDescendants) { |
| std::string Fragment = |
| "namespace a { struct A { struct B { struct C {}; }; }; };" |
| "void f() { a::A::B::C c; }"; |
| EXPECT_TRUE(matches( |
| Fragment, |
| decl(hasDescendant(nestedNameSpecifier(specifiesType( |
| asString("struct a::A"))))))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Fragment, |
| functionDecl(hasName("f"), |
| forEachDescendant(nestedNameSpecifier().bind("x"))), |
| // Nested names: a, a::A and a::A::B. |
| std::make_unique<VerifyIdIsBoundTo<NestedNameSpecifier>>("x", 3))); |
| } |
| |
| TEST(NNSLoc, DescendantsOfNestedNameSpecifierLocs) { |
| std::string Fragment = |
| "namespace a { struct A { struct B { struct C {}; }; }; };" |
| "void f() { a::A::B::C c; }"; |
| EXPECT_TRUE(matches( |
| Fragment, |
| nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), |
| hasDescendant(loc(nestedNameSpecifier( |
| specifiesNamespace(hasName("a")))))))); |
| EXPECT_TRUE(notMatches( |
| Fragment, |
| nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), |
| has(loc(nestedNameSpecifier( |
| specifiesNamespace(hasName("a")))))))); |
| EXPECT_TRUE(matches( |
| Fragment, |
| nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A"))), |
| has(loc(nestedNameSpecifier( |
| specifiesNamespace(hasName("a")))))))); |
| |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Fragment, |
| nestedNameSpecifierLoc(loc(specifiesType(asString("struct a::A::B"))), |
| forEach(nestedNameSpecifierLoc().bind("x"))), |
| std::make_unique<VerifyIdIsBoundTo<NestedNameSpecifierLoc>>("x", 1))); |
| } |
| |
| TEST(NNSLoc, NestedNameSpecifierLocsAsDescendants) { |
| std::string Fragment = |
| "namespace a { struct A { struct B { struct C {}; }; }; };" |
| "void f() { a::A::B::C c; }"; |
| EXPECT_TRUE(matches( |
| Fragment, |
| decl(hasDescendant(loc(nestedNameSpecifier(specifiesType( |
| asString("struct a::A")))))))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Fragment, |
| functionDecl(hasName("f"), |
| forEachDescendant(nestedNameSpecifierLoc().bind("x"))), |
| // Nested names: a, a::A and a::A::B. |
| std::make_unique<VerifyIdIsBoundTo<NestedNameSpecifierLoc>>("x", 3))); |
| } |
| template <typename T> class VerifyMatchOnNode : public BoundNodesCallback { |
| public: |
| VerifyMatchOnNode(StringRef Id, const internal::Matcher<T> &InnerMatcher, |
| StringRef InnerId) |
| : Id(Id), InnerMatcher(InnerMatcher), InnerId(InnerId) { |
| } |
| |
| bool run(const BoundNodes *Nodes) override { return false; } |
| |
| bool run(const BoundNodes *Nodes, ASTContext *Context) override { |
| const T *Node = Nodes->getNodeAs<T>(Id); |
| return selectFirst<T>(InnerId, match(InnerMatcher, *Node, *Context)) != |
| nullptr; |
| } |
| private: |
| std::string Id; |
| internal::Matcher<T> InnerMatcher; |
| std::string InnerId; |
| }; |
| |
| TEST(MatchFinder, CanMatchDeclarationsRecursively) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), |
| std::make_unique<VerifyMatchOnNode<Decl>>( |
| "X", decl(hasDescendant(recordDecl(hasName("X::Y")).bind("Y"))), |
| "Y"))); |
| EXPECT_TRUE(matchAndVerifyResultFalse( |
| "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), |
| std::make_unique<VerifyMatchOnNode<Decl>>( |
| "X", decl(hasDescendant(recordDecl(hasName("X::Z")).bind("Z"))), |
| "Z"))); |
| } |
| |
| TEST(MatchFinder, CanMatchStatementsRecursively) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "void f() { if (1) { for (;;) { } } }", ifStmt().bind("if"), |
| std::make_unique<VerifyMatchOnNode<Stmt>>( |
| "if", stmt(hasDescendant(forStmt().bind("for"))), "for"))); |
| EXPECT_TRUE(matchAndVerifyResultFalse( |
| "void f() { if (1) { for (;;) { } } }", ifStmt().bind("if"), |
| std::make_unique<VerifyMatchOnNode<Stmt>>( |
| "if", stmt(hasDescendant(declStmt().bind("decl"))), "decl"))); |
| } |
| |
| TEST(MatchFinder, CanMatchSingleNodesRecursively) { |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), |
| std::make_unique<VerifyMatchOnNode<Decl>>( |
| "X", recordDecl(has(recordDecl(hasName("X::Y")).bind("Y"))), "Y"))); |
| EXPECT_TRUE(matchAndVerifyResultFalse( |
| "class X { class Y {}; };", recordDecl(hasName("::X")).bind("X"), |
| std::make_unique<VerifyMatchOnNode<Decl>>( |
| "X", recordDecl(has(recordDecl(hasName("X::Z")).bind("Z"))), "Z"))); |
| } |
| |
| TEST(StatementMatcher, HasReturnValue) { |
| StatementMatcher RetVal = returnStmt(hasReturnValue(binaryOperator())); |
| EXPECT_TRUE(matches("int F() { int a, b; return a + b; }", RetVal)); |
| EXPECT_FALSE(matches("int F() { int a; return a; }", RetVal)); |
| EXPECT_FALSE(matches("void F() { return; }", RetVal)); |
| } |
| |
| TEST(StatementMatcher, ForFunction) { |
| const auto CppString1 = |
| "struct PosVec {" |
| " PosVec& operator=(const PosVec&) {" |
| " auto x = [] { return 1; };" |
| " return *this;" |
| " }" |
| "};"; |
| const auto CppString2 = |
| "void F() {" |
| " struct S {" |
| " void F2() {" |
| " return;" |
| " }" |
| " };" |
| "}"; |
| EXPECT_TRUE( |
| matches( |
| CppString1, |
| returnStmt(forFunction(hasName("operator=")), |
| has(unaryOperator(hasOperatorName("*")))))); |
| EXPECT_TRUE( |
| notMatches( |
| CppString1, |
| returnStmt(forFunction(hasName("operator=")), |
| has(integerLiteral())))); |
| EXPECT_TRUE( |
| matches( |
| CppString1, |
| returnStmt(forFunction(hasName("operator()")), |
| has(integerLiteral())))); |
| EXPECT_TRUE(matches(CppString2, returnStmt(forFunction(hasName("F2"))))); |
| EXPECT_TRUE(notMatches(CppString2, returnStmt(forFunction(hasName("F"))))); |
| } |
| |
| TEST(Matcher, ForEachOverriden) { |
| const auto ForEachOverriddenInClass = [](const char *ClassName) { |
| return cxxMethodDecl(ofClass(hasName(ClassName)), isVirtual(), |
| forEachOverridden(cxxMethodDecl().bind("overridden"))) |
| .bind("override"); |
| }; |
| static const char Code1[] = "class A { virtual void f(); };" |
| "class B : public A { void f(); };" |
| "class C : public B { void f(); };"; |
| // C::f overrides A::f. |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Code1, ForEachOverriddenInClass("C"), |
| std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("override", "f", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Code1, ForEachOverriddenInClass("C"), |
| std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("overridden", "f", |
| 1))); |
| // B::f overrides A::f. |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Code1, ForEachOverriddenInClass("B"), |
| std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("override", "f", 1))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Code1, ForEachOverriddenInClass("B"), |
| std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("overridden", "f", |
| 1))); |
| // A::f overrides nothing. |
| EXPECT_TRUE(notMatches(Code1, ForEachOverriddenInClass("A"))); |
| |
| static const char Code2[] = |
| "class A1 { virtual void f(); };" |
| "class A2 { virtual void f(); };" |
| "class B : public A1, public A2 { void f(); };"; |
| // B::f overrides A1::f and A2::f. This produces two matches. |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Code2, ForEachOverriddenInClass("B"), |
| std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("override", "f", 2))); |
| EXPECT_TRUE(matchAndVerifyResultTrue( |
| Code2, ForEachOverriddenInClass("B"), |
| std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("overridden", "f", |
| 2))); |
| // A1::f overrides nothing. |
| EXPECT_TRUE(notMatches(Code2, ForEachOverriddenInClass("A1"))); |
| } |
| |
| TEST(Matcher, HasAnyDeclaration) { |
| std::string Fragment = "void foo(int p1);" |
| "void foo(int *p2);" |
| "void bar(int p3);" |
| "template <typename T> void baz(T t) { foo(t); }"; |
| |
| EXPECT_TRUE( |
| matches(Fragment, unresolvedLookupExpr(hasAnyDeclaration(functionDecl( |
| hasParameter(0, parmVarDecl(hasName("p1")))))))); |
| EXPECT_TRUE( |
| matches(Fragment, unresolvedLookupExpr(hasAnyDeclaration(functionDecl( |
| hasParameter(0, parmVarDecl(hasName("p2")))))))); |
| EXPECT_TRUE( |
| notMatches(Fragment, unresolvedLookupExpr(hasAnyDeclaration(functionDecl( |
| hasParameter(0, parmVarDecl(hasName("p3")))))))); |
| EXPECT_TRUE(notMatches(Fragment, unresolvedLookupExpr(hasAnyDeclaration( |
| functionDecl(hasName("bar")))))); |
| } |
| |
| TEST(SubstTemplateTypeParmType, HasReplacementType) { |
| std::string Fragment = "template<typename T>" |
| "double F(T t);" |
| "int i;" |
| "double j = F(i);"; |
| EXPECT_TRUE(matches(Fragment, substTemplateTypeParmType(hasReplacementType( |
| qualType(asString("int")))))); |
| EXPECT_TRUE(notMatches(Fragment, substTemplateTypeParmType(hasReplacementType( |
| qualType(asString("double")))))); |
| EXPECT_TRUE( |
| notMatches("template<int N>" |
| "double F();" |
| "double j = F<5>();", |
| substTemplateTypeParmType(hasReplacementType(qualType())))); |
| } |
| |
| TEST(ClassTemplateSpecializationDecl, HasSpecializedTemplate) { |
| auto Matcher = classTemplateSpecializationDecl( |
| hasSpecializedTemplate(classTemplateDecl())); |
| EXPECT_TRUE( |
| matches("template<typename T> class A {}; typedef A<int> B;", Matcher)); |
| EXPECT_TRUE(notMatches("template<typename T> class A {};", Matcher)); |
| } |
| |
| } // namespace ast_matchers |
| } // namespace clang |