forked from OSchip/llvm-project
3595 lines
134 KiB
C++
3595 lines
134 KiB
C++
//= unittests/ASTMatchers/ASTMatchersTraversalTest.cpp - matchers unit tests =//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "ASTMatchersTest.h"
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#include "clang/AST/PrettyPrinter.h"
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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#include "clang/ASTMatchers/ASTMatchers.h"
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#include "clang/Tooling/Tooling.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/Support/Host.h"
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#include "gtest/gtest.h"
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namespace clang {
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namespace ast_matchers {
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TEST(DeclarationMatcher, hasMethod) {
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EXPECT_TRUE(matches("class A { void func(); };",
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cxxRecordDecl(hasMethod(hasName("func")))));
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EXPECT_TRUE(notMatches("class A { void func(); };",
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cxxRecordDecl(hasMethod(isPublic()))));
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}
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TEST(DeclarationMatcher, ClassDerivedFromDependentTemplateSpecialization) {
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EXPECT_TRUE(matches(
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"template <typename T> struct A {"
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" template <typename T2> struct F {};"
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"};"
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"template <typename T> struct B : A<T>::template F<T> {};"
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"B<int> b;",
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cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl()))));
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}
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TEST(DeclarationMatcher, hasDeclContext) {
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EXPECT_TRUE(matches(
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"namespace N {"
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" namespace M {"
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" class D {};"
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" }"
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"}",
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recordDecl(hasDeclContext(namespaceDecl(hasName("M"))))));
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EXPECT_TRUE(notMatches(
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"namespace N {"
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" namespace M {"
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" class D {};"
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" }"
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"}",
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recordDecl(hasDeclContext(namespaceDecl(hasName("N"))))));
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EXPECT_TRUE(matches("namespace {"
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" namespace M {"
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" class D {};"
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" }"
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"}",
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recordDecl(hasDeclContext(namespaceDecl(
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hasName("M"), hasDeclContext(namespaceDecl()))))));
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EXPECT_TRUE(matches("class D{};", decl(hasDeclContext(decl()))));
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}
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TEST(HasDescendant, MatchesDescendantTypes) {
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EXPECT_TRUE(matches("void f() { int i = 3; }",
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decl(hasDescendant(loc(builtinType())))));
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EXPECT_TRUE(matches("void f() { int i = 3; }",
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stmt(hasDescendant(builtinType()))));
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EXPECT_TRUE(matches("void f() { int i = 3; }",
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stmt(hasDescendant(loc(builtinType())))));
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EXPECT_TRUE(matches("void f() { int i = 3; }",
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stmt(hasDescendant(qualType(builtinType())))));
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EXPECT_TRUE(notMatches("void f() { float f = 2.0f; }",
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stmt(hasDescendant(isInteger()))));
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EXPECT_TRUE(matchAndVerifyResultTrue(
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"void f() { int a; float c; int d; int e; }",
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functionDecl(forEachDescendant(
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varDecl(hasDescendant(isInteger())).bind("x"))),
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std::make_unique<VerifyIdIsBoundTo<Decl>>("x", 3)));
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}
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TEST(HasDescendant, MatchesDescendantsOfTypes) {
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EXPECT_TRUE(matches("void f() { int*** i; }",
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qualType(hasDescendant(builtinType()))));
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EXPECT_TRUE(matches("void f() { int*** i; }",
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qualType(hasDescendant(
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pointerType(pointee(builtinType()))))));
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EXPECT_TRUE(matches("void f() { int*** i; }",
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typeLoc(hasDescendant(loc(builtinType())))));
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EXPECT_TRUE(matchAndVerifyResultTrue(
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"void f() { int*** i; }",
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qualType(asString("int ***"), forEachDescendant(pointerType().bind("x"))),
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std::make_unique<VerifyIdIsBoundTo<Type>>("x", 2)));
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}
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TEST(Has, MatchesChildrenOfTypes) {
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EXPECT_TRUE(matches("int i;",
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varDecl(hasName("i"), has(isInteger()))));
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EXPECT_TRUE(notMatches("int** i;",
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varDecl(hasName("i"), has(isInteger()))));
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EXPECT_TRUE(matchAndVerifyResultTrue(
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"int (*f)(float, int);",
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qualType(functionType(), forEach(qualType(isInteger()).bind("x"))),
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std::make_unique<VerifyIdIsBoundTo<QualType>>("x", 2)));
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}
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TEST(Has, MatchesChildTypes) {
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EXPECT_TRUE(matches(
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"int* i;",
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varDecl(hasName("i"), hasType(qualType(has(builtinType()))))));
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EXPECT_TRUE(notMatches(
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"int* i;",
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varDecl(hasName("i"), hasType(qualType(has(pointerType()))))));
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}
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TEST(StatementMatcher, Has) {
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StatementMatcher HasVariableI =
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expr(hasType(pointsTo(recordDecl(hasName("X")))),
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has(ignoringParenImpCasts(declRefExpr(to(varDecl(hasName("i")))))));
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EXPECT_TRUE(matches(
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"class X; X *x(int); void c() { int i; x(i); }", HasVariableI));
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EXPECT_TRUE(notMatches(
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"class X; X *x(int); void c() { int i; x(42); }", HasVariableI));
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}
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TEST(StatementMatcher, HasDescendant) {
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StatementMatcher HasDescendantVariableI =
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expr(hasType(pointsTo(recordDecl(hasName("X")))),
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hasDescendant(declRefExpr(to(varDecl(hasName("i"))))));
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EXPECT_TRUE(matches(
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"class X; X *x(bool); bool b(int); void c() { int i; x(b(i)); }",
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HasDescendantVariableI));
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EXPECT_TRUE(notMatches(
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"class X; X *x(bool); bool b(int); void c() { int i; x(b(42)); }",
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HasDescendantVariableI));
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}
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TEST(TypeMatcher, MatchesClassType) {
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TypeMatcher TypeA = hasDeclaration(recordDecl(hasName("A")));
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EXPECT_TRUE(matches("class A { public: A *a; };", TypeA));
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EXPECT_TRUE(notMatches("class A {};", TypeA));
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TypeMatcher TypeDerivedFromA =
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hasDeclaration(cxxRecordDecl(isDerivedFrom("A")));
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EXPECT_TRUE(matches("class A {}; class B : public A { public: B *b; };",
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TypeDerivedFromA));
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EXPECT_TRUE(notMatches("class A {};", TypeA));
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TypeMatcher TypeAHasClassB = hasDeclaration(
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recordDecl(hasName("A"), has(recordDecl(hasName("B")))));
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EXPECT_TRUE(
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matches("class A { public: A *a; class B {}; };", TypeAHasClassB));
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EXPECT_TRUE(matchesC("struct S {}; void f(void) { struct S s; }",
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varDecl(hasType(namedDecl(hasName("S"))))));
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}
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TEST(TypeMatcher, MatchesDeclTypes) {
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// TypedefType -> TypedefNameDecl
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EXPECT_TRUE(matches("typedef int I; void f(I i);",
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parmVarDecl(hasType(namedDecl(hasName("I"))))));
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// ObjCObjectPointerType
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EXPECT_TRUE(matchesObjC("@interface Foo @end void f(Foo *f);",
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parmVarDecl(hasType(objcObjectPointerType()))));
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// ObjCObjectPointerType -> ObjCInterfaceType -> ObjCInterfaceDecl
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EXPECT_TRUE(matchesObjC(
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"@interface Foo @end void f(Foo *f);",
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parmVarDecl(hasType(pointsTo(objcInterfaceDecl(hasName("Foo")))))));
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// TemplateTypeParmType
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EXPECT_TRUE(matches("template <typename T> void f(T t);",
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parmVarDecl(hasType(templateTypeParmType()))));
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// TemplateTypeParmType -> TemplateTypeParmDecl
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EXPECT_TRUE(matches("template <typename T> void f(T t);",
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parmVarDecl(hasType(namedDecl(hasName("T"))))));
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// InjectedClassNameType
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EXPECT_TRUE(matches("template <typename T> struct S {"
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" void f(S s);"
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"};",
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parmVarDecl(hasType(injectedClassNameType()))));
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EXPECT_TRUE(notMatches("template <typename T> struct S {"
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" void g(S<T> s);"
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"};",
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parmVarDecl(hasType(injectedClassNameType()))));
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// InjectedClassNameType -> CXXRecordDecl
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EXPECT_TRUE(matches("template <typename T> struct S {"
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" void f(S s);"
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"};",
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parmVarDecl(hasType(namedDecl(hasName("S"))))));
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static const char Using[] = "template <typename T>"
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"struct Base {"
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" typedef T Foo;"
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"};"
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""
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"template <typename T>"
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"struct S : private Base<T> {"
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" using typename Base<T>::Foo;"
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" void f(Foo);"
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"};";
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// UnresolvedUsingTypenameDecl
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EXPECT_TRUE(matches(Using, unresolvedUsingTypenameDecl(hasName("Foo"))));
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// UnresolvedUsingTypenameType -> UnresolvedUsingTypenameDecl
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EXPECT_TRUE(matches(Using, parmVarDecl(hasType(namedDecl(hasName("Foo"))))));
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}
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TEST(HasDeclaration, HasDeclarationOfEnumType) {
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EXPECT_TRUE(matches("enum X {}; void y(X *x) { x; }",
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expr(hasType(pointsTo(
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qualType(hasDeclaration(enumDecl(hasName("X")))))))));
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}
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TEST(HasDeclaration, HasGetDeclTraitTest) {
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static_assert(internal::has_getDecl<TypedefType>::value,
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"Expected TypedefType to have a getDecl.");
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static_assert(internal::has_getDecl<RecordType>::value,
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"Expected RecordType to have a getDecl.");
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static_assert(!internal::has_getDecl<TemplateSpecializationType>::value,
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"Expected TemplateSpecializationType to *not* have a getDecl.");
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}
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TEST(HasDeclaration, ElaboratedType) {
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EXPECT_TRUE(matches(
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"namespace n { template <typename T> struct X {}; }"
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"void f(n::X<int>);",
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parmVarDecl(hasType(qualType(hasDeclaration(cxxRecordDecl()))))));
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EXPECT_TRUE(matches(
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"namespace n { template <typename T> struct X {}; }"
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"void f(n::X<int>);",
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parmVarDecl(hasType(elaboratedType(hasDeclaration(cxxRecordDecl()))))));
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}
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TEST(HasDeclaration, HasDeclarationOfTypeWithDecl) {
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EXPECT_TRUE(matches("typedef int X; X a;",
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varDecl(hasName("a"),
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hasType(typedefType(hasDeclaration(decl()))))));
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// FIXME: Add tests for other types with getDecl() (e.g. RecordType)
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}
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TEST(HasDeclaration, HasDeclarationOfTemplateSpecializationType) {
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EXPECT_TRUE(matches("template <typename T> class A {}; A<int> a;",
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varDecl(hasType(templateSpecializationType(
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hasDeclaration(namedDecl(hasName("A"))))))));
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EXPECT_TRUE(matches("template <typename T> class A {};"
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"template <typename T> class B { A<T> a; };",
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fieldDecl(hasType(templateSpecializationType(
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hasDeclaration(namedDecl(hasName("A"))))))));
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EXPECT_TRUE(matches("template <typename T> class A {}; A<int> a;",
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varDecl(hasType(templateSpecializationType(
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hasDeclaration(cxxRecordDecl()))))));
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}
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TEST(HasDeclaration, HasDeclarationOfCXXNewExpr) {
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EXPECT_TRUE(
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matches("int *A = new int();",
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cxxNewExpr(hasDeclaration(functionDecl(parameterCountIs(1))))));
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}
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TEST(HasDeclaration, HasDeclarationOfTypeAlias) {
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EXPECT_TRUE(matches("template <typename T> using C = T; C<int> c;",
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varDecl(hasType(templateSpecializationType(
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hasDeclaration(typeAliasTemplateDecl()))))));
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}
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TEST(HasUnqualifiedDesugaredType, DesugarsUsing) {
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EXPECT_TRUE(
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matches("struct A {}; using B = A; B b;",
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varDecl(hasType(hasUnqualifiedDesugaredType(recordType())))));
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EXPECT_TRUE(
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matches("struct A {}; using B = A; using C = B; C b;",
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varDecl(hasType(hasUnqualifiedDesugaredType(recordType())))));
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}
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TEST(HasUnderlyingDecl, Matches) {
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EXPECT_TRUE(matches("namespace N { template <class T> void f(T t); }"
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"template <class T> void g() { using N::f; f(T()); }",
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unresolvedLookupExpr(hasAnyDeclaration(
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namedDecl(hasUnderlyingDecl(hasName("::N::f")))))));
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EXPECT_TRUE(matches(
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"namespace N { template <class T> void f(T t); }"
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"template <class T> void g() { N::f(T()); }",
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unresolvedLookupExpr(hasAnyDeclaration(namedDecl(hasName("::N::f"))))));
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EXPECT_TRUE(notMatches(
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"namespace N { template <class T> void f(T t); }"
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"template <class T> void g() { using N::f; f(T()); }",
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unresolvedLookupExpr(hasAnyDeclaration(namedDecl(hasName("::N::f"))))));
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}
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TEST(HasType, TakesQualTypeMatcherAndMatchesExpr) {
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TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X")));
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EXPECT_TRUE(
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matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX))));
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EXPECT_TRUE(
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notMatches("class X {}; void y(X *x) { x; }",
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expr(hasType(ClassX))));
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EXPECT_TRUE(
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matches("class X {}; void y(X *x) { x; }",
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expr(hasType(pointsTo(ClassX)))));
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}
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TEST(HasType, TakesQualTypeMatcherAndMatchesValueDecl) {
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TypeMatcher ClassX = hasDeclaration(recordDecl(hasName("X")));
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EXPECT_TRUE(
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matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX))));
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EXPECT_TRUE(
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notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX))));
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EXPECT_TRUE(
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matches("class X {}; void y() { X *x; }",
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varDecl(hasType(pointsTo(ClassX)))));
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}
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TEST(HasType, TakesDeclMatcherAndMatchesExpr) {
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DeclarationMatcher ClassX = recordDecl(hasName("X"));
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EXPECT_TRUE(
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matches("class X {}; void y(X &x) { x; }", expr(hasType(ClassX))));
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EXPECT_TRUE(
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notMatches("class X {}; void y(X *x) { x; }",
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expr(hasType(ClassX))));
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}
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TEST(HasType, TakesDeclMatcherAndMatchesValueDecl) {
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DeclarationMatcher ClassX = recordDecl(hasName("X"));
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EXPECT_TRUE(
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matches("class X {}; void y() { X x; }", varDecl(hasType(ClassX))));
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EXPECT_TRUE(
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notMatches("class X {}; void y() { X *x; }", varDecl(hasType(ClassX))));
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}
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TEST(HasType, MatchesTypedefDecl) {
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EXPECT_TRUE(matches("typedef int X;", typedefDecl(hasType(asString("int")))));
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EXPECT_TRUE(matches("typedef const int T;",
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typedefDecl(hasType(asString("const int")))));
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EXPECT_TRUE(notMatches("typedef const int T;",
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typedefDecl(hasType(asString("int")))));
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EXPECT_TRUE(matches("typedef int foo; typedef foo bar;",
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typedefDecl(hasType(asString("foo")), hasName("bar"))));
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}
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TEST(HasType, MatchesTypedefNameDecl) {
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EXPECT_TRUE(matches("using X = int;", typedefNameDecl(hasType(asString("int")))));
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EXPECT_TRUE(matches("using T = const int;",
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typedefNameDecl(hasType(asString("const int")))));
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EXPECT_TRUE(notMatches("using T = const int;",
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typedefNameDecl(hasType(asString("int")))));
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EXPECT_TRUE(matches("using foo = int; using bar = foo;",
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typedefNameDecl(hasType(asString("foo")), hasName("bar"))));
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}
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TEST(HasTypeLoc, MatchesDeclaratorDecls) {
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EXPECT_TRUE(matches("int x;",
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varDecl(hasName("x"), hasTypeLoc(loc(asString("int"))))));
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// Make sure we don't crash on implicit constructors.
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EXPECT_TRUE(notMatches("class X {}; X x;",
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declaratorDecl(hasTypeLoc(loc(asString("int"))))));
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}
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TEST(Callee, MatchesDeclarations) {
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StatementMatcher CallMethodX = callExpr(callee(cxxMethodDecl(hasName("x"))));
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EXPECT_TRUE(matches("class Y { void x() { x(); } };", CallMethodX));
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EXPECT_TRUE(notMatches("class Y { void x() {} };", CallMethodX));
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CallMethodX =
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traverse(ast_type_traits::TK_AsIs, callExpr(callee(cxxConversionDecl())));
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EXPECT_TRUE(
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matches("struct Y { operator int() const; }; int i = Y();", CallMethodX));
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EXPECT_TRUE(notMatches("struct Y { operator int() const; }; Y y = Y();",
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CallMethodX));
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}
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TEST(Callee, MatchesMemberExpressions) {
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EXPECT_TRUE(matches("class Y { void x() { this->x(); } };",
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callExpr(callee(memberExpr()))));
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EXPECT_TRUE(
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notMatches("class Y { void x() { this->x(); } };", callExpr(callee(callExpr()))));
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}
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TEST(Matcher, Argument) {
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StatementMatcher CallArgumentY = callExpr(
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hasArgument(0, declRefExpr(to(varDecl(hasName("y"))))));
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EXPECT_TRUE(matches("void x(int) { int y; x(y); }", CallArgumentY));
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EXPECT_TRUE(
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matches("class X { void x(int) { int y; x(y); } };", CallArgumentY));
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EXPECT_TRUE(notMatches("void x(int) { int z; x(z); }", CallArgumentY));
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StatementMatcher WrongIndex = callExpr(
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hasArgument(42, declRefExpr(to(varDecl(hasName("y"))))));
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EXPECT_TRUE(notMatches("void x(int) { int y; x(y); }", WrongIndex));
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}
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TEST(Matcher, AnyArgument) {
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auto HasArgumentY = hasAnyArgument(
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ignoringParenImpCasts(declRefExpr(to(varDecl(hasName("y"))))));
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StatementMatcher CallArgumentY = callExpr(HasArgumentY);
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StatementMatcher CtorArgumentY = cxxConstructExpr(HasArgumentY);
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StatementMatcher UnresolvedCtorArgumentY =
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cxxUnresolvedConstructExpr(HasArgumentY);
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StatementMatcher ObjCCallArgumentY = objcMessageExpr(HasArgumentY);
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EXPECT_TRUE(matches("void x(int, int) { int y; x(1, y); }", CallArgumentY));
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EXPECT_TRUE(matches("void x(int, int) { int y; x(y, 42); }", CallArgumentY));
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EXPECT_TRUE(matches("struct Y { Y(int, int); };"
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"void x() { int y; (void)Y(1, y); }",
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CtorArgumentY));
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EXPECT_TRUE(matches("struct Y { Y(int, int); };"
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"void x() { int y; (void)Y(y, 42); }",
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CtorArgumentY));
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EXPECT_TRUE(matches("template <class Y> void x() { int y; (void)Y(1, y); }",
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UnresolvedCtorArgumentY));
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EXPECT_TRUE(matches("template <class Y> void x() { int y; (void)Y(y, 42); }",
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UnresolvedCtorArgumentY));
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EXPECT_TRUE(matchesObjC("@interface I -(void)f:(int) y; @end "
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"void x(I* i) { int y; [i f:y]; }",
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ObjCCallArgumentY));
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EXPECT_FALSE(matchesObjC("@interface I -(void)f:(int) z; @end "
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"void x(I* i) { int z; [i f:z]; }",
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ObjCCallArgumentY));
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EXPECT_TRUE(notMatches("void x(int, int) { x(1, 2); }", CallArgumentY));
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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 = traverse(
|
|
ast_type_traits::TK_AsIs, 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, HasAnyCapture) {
|
|
auto HasCaptureX = lambdaExpr(hasAnyCapture(varDecl(hasName("x"))));
|
|
EXPECT_TRUE(matches("void f() { int x = 3; [x](){}; }", HasCaptureX));
|
|
EXPECT_TRUE(matches("void f() { int x = 3; [&x](){}; }", HasCaptureX));
|
|
EXPECT_TRUE(notMatches("void f() { [](){}; }", HasCaptureX));
|
|
EXPECT_TRUE(notMatches("void f() { int z = 3; [&z](){}; }", HasCaptureX));
|
|
EXPECT_TRUE(
|
|
notMatches("struct a { void f() { [this](){}; }; };", HasCaptureX));
|
|
}
|
|
|
|
TEST(Matcher, CapturesThis) {
|
|
auto HasCaptureThis = lambdaExpr(hasAnyCapture(cxxThisExpr()));
|
|
EXPECT_TRUE(
|
|
matches("struct a { void f() { [this](){}; }; };", HasCaptureThis));
|
|
EXPECT_TRUE(notMatches("void f() { [](){}; }", HasCaptureThis));
|
|
EXPECT_TRUE(notMatches("void f() { int x = 3; [x](){}; }", HasCaptureThis));
|
|
EXPECT_TRUE(notMatches("void f() { int x = 3; [&x](){}; }", HasCaptureThis));
|
|
EXPECT_TRUE(notMatches("void f() { int z = 3; [&z](){}; }", HasCaptureThis));
|
|
}
|
|
|
|
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) {
|
|
StringRef Snippet1 = R"cc(
|
|
struct Y {
|
|
void m();
|
|
};
|
|
void z(Y y) { y.m(); }
|
|
)cc";
|
|
StringRef 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.
|
|
StringRef 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) {
|
|
StringRef Snippet1 = R"cc(
|
|
struct Y {
|
|
void m();
|
|
};
|
|
void z(Y y) { y.m(); }
|
|
)cc";
|
|
StringRef Snippet2 = R"cc(
|
|
struct Y {
|
|
void m();
|
|
};
|
|
struct X : public Y {};
|
|
void z(X x) { x.m(); }
|
|
)cc";
|
|
auto MatchesY = traverse(ast_type_traits::TK_AsIs,
|
|
cxxMemberCallExpr(onImplicitObjectArgument(
|
|
hasType(cxxRecordDecl(hasName("Y"))))));
|
|
EXPECT_TRUE(matches(Snippet1, MatchesY));
|
|
EXPECT_TRUE(matches(Snippet2, MatchesY));
|
|
|
|
auto MatchesX = traverse(ast_type_traits::TK_AsIs,
|
|
cxxMemberCallExpr(onImplicitObjectArgument(
|
|
hasType(cxxRecordDecl(hasName("X"))))));
|
|
EXPECT_TRUE(notMatches(Snippet2, MatchesX));
|
|
|
|
// Parens are not ignored.
|
|
StringRef Snippet3 = R"cc(
|
|
struct Y {
|
|
void m();
|
|
};
|
|
Y g();
|
|
void z(Y y) { (g()).m(); }
|
|
)cc";
|
|
auto MatchesCall =
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxMemberCallExpr(onImplicitObjectArgument(callExpr())));
|
|
EXPECT_TRUE(notMatches(Snippet3, MatchesCall));
|
|
}
|
|
|
|
TEST(Matcher, HasObjectExpr) {
|
|
StringRef Snippet1 = R"cc(
|
|
struct X {
|
|
int m;
|
|
int f(X x) { return x.m; }
|
|
};
|
|
)cc";
|
|
StringRef 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 =
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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(ForEachArgumentWithParamType, ReportsNoFalsePositives) {
|
|
StatementMatcher ArgumentY =
|
|
declRefExpr(to(varDecl(hasName("y")))).bind("arg");
|
|
TypeMatcher IntType = qualType(isInteger()).bind("type");
|
|
StatementMatcher CallExpr =
|
|
callExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
|
|
// 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(ForEachArgumentWithParamType, MatchesCXXMemberCallExpr) {
|
|
StatementMatcher ArgumentY =
|
|
declRefExpr(to(varDecl(hasName("y")))).bind("arg");
|
|
TypeMatcher IntType = qualType(isInteger()).bind("type");
|
|
StatementMatcher CallExpr =
|
|
callExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
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<QualType>>("type", 1)));
|
|
|
|
StatementMatcher CallExpr2 =
|
|
callExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"struct S {"
|
|
" static void g(int i);"
|
|
"};"
|
|
"void f() {"
|
|
" int y = 1;"
|
|
" S::g(y);"
|
|
"}",
|
|
CallExpr2, std::make_unique<VerifyIdIsBoundTo<QualType>>("type", 1)));
|
|
}
|
|
|
|
TEST(ForEachArgumentWithParamType, MatchesCallExpr) {
|
|
StatementMatcher ArgumentY =
|
|
declRefExpr(to(varDecl(hasName("y")))).bind("arg");
|
|
TypeMatcher IntType = qualType(isInteger()).bind("type");
|
|
StatementMatcher CallExpr =
|
|
callExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"void f(int i) { int y; f(y); }", CallExpr,
|
|
std::make_unique<VerifyIdIsBoundTo<QualType>>("type")));
|
|
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<QualType>>("type", 2)));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"void f(int i, int j) { int y; f(y, y); }", CallExpr,
|
|
std::make_unique<VerifyIdIsBoundTo<DeclRefExpr>>("arg", 2)));
|
|
}
|
|
|
|
TEST(ForEachArgumentWithParamType, MatchesConstructExpr) {
|
|
StatementMatcher ArgumentY =
|
|
declRefExpr(to(varDecl(hasName("y")))).bind("arg");
|
|
TypeMatcher IntType = qualType(isInteger()).bind("type");
|
|
StatementMatcher ConstructExpr =
|
|
cxxConstructExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"struct C {"
|
|
" C(int i) {}"
|
|
"};"
|
|
"int y = 0;"
|
|
"C Obj(y);",
|
|
ConstructExpr, std::make_unique<VerifyIdIsBoundTo<QualType>>("type")));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"struct C {"
|
|
" C(int i) {}"
|
|
"};"
|
|
"int y = 0;"
|
|
"C Obj(y);",
|
|
ConstructExpr, std::make_unique<VerifyIdIsBoundTo<DeclRefExpr>>("arg")));
|
|
}
|
|
|
|
TEST(ForEachArgumentWithParamType, HandlesKandRFunctions) {
|
|
StatementMatcher ArgumentY =
|
|
declRefExpr(to(varDecl(hasName("y")))).bind("arg");
|
|
TypeMatcher IntType = qualType(isInteger()).bind("type");
|
|
StatementMatcher CallExpr =
|
|
callExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
|
|
EXPECT_TRUE(matchesC("void f();\n"
|
|
"void call_it(void) { int x, y; f(x, y); }\n"
|
|
"void f(a, b) int a, b; {}\n"
|
|
"void call_it2(void) { int x, y; f(x, y); }",
|
|
CallExpr));
|
|
}
|
|
|
|
TEST(ForEachArgumentWithParamType, 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(forEachArgumentWithParamType(
|
|
declRefExpr(to(decl(equalsBoundNode("v")))), qualType())))),
|
|
std::make_unique<VerifyIdIsBoundTo<VarDecl>>("v", 4)));
|
|
}
|
|
|
|
TEST(ForEachArgumentWithParamType, MatchesFunctionPtrCalls) {
|
|
StatementMatcher ArgumentY =
|
|
declRefExpr(to(varDecl(hasName("y")))).bind("arg");
|
|
TypeMatcher IntType = qualType(builtinType()).bind("type");
|
|
StatementMatcher CallExpr =
|
|
callExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"void f(int i) {"
|
|
"void (*f_ptr)(int) = f; int y; f_ptr(y); }",
|
|
CallExpr, std::make_unique<VerifyIdIsBoundTo<QualType>>("type")));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"void f(int i) {"
|
|
"void (*f_ptr)(int) = f; int y; f_ptr(y); }",
|
|
CallExpr, std::make_unique<VerifyIdIsBoundTo<DeclRefExpr>>("arg")));
|
|
}
|
|
|
|
TEST(ForEachArgumentWithParamType, MatchesMemberFunctionPtrCalls) {
|
|
StatementMatcher ArgumentY =
|
|
declRefExpr(to(varDecl(hasName("y")))).bind("arg");
|
|
TypeMatcher IntType = qualType(builtinType()).bind("type");
|
|
StatementMatcher CallExpr =
|
|
callExpr(forEachArgumentWithParamType(ArgumentY, IntType));
|
|
|
|
StringRef S = "struct A {\n"
|
|
" int f(int i) { return i + 1; }\n"
|
|
" int (A::*x)(int);\n"
|
|
"};\n"
|
|
"void f() {\n"
|
|
" int y = 42;\n"
|
|
" A a;\n"
|
|
" a.x = &A::f;\n"
|
|
" (a.*(a.x))(y);\n"
|
|
"}";
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
S, CallExpr, std::make_unique<VerifyIdIsBoundTo<QualType>>("type")));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
S, CallExpr, std::make_unique<VerifyIdIsBoundTo<DeclRefExpr>>("arg")));
|
|
}
|
|
|
|
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")), langCxx14OrLater()));
|
|
EXPECT_TRUE(
|
|
matches(input, templateTypeParmDecl(hasName("T2")), langCxx14OrLater()));
|
|
EXPECT_TRUE(
|
|
matches(input, templateTypeParmDecl(hasName("U")), langCxx14OrLater()));
|
|
EXPECT_TRUE(
|
|
matches(input, templateTypeParmDecl(hasName("U2")), langCxx14OrLater()));
|
|
}
|
|
|
|
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, HasAnyOperatorName) {
|
|
StatementMatcher Matcher =
|
|
binaryOperator(hasAnyOperatorName("+", "-", "*", "/"));
|
|
|
|
EXPECT_TRUE(matches("int x(int I) { return I + 2; }", Matcher));
|
|
EXPECT_TRUE(matches("int x(int I) { return I - 2; }", Matcher));
|
|
EXPECT_TRUE(matches("int x(int I) { return I * 2; }", Matcher));
|
|
EXPECT_TRUE(matches("int x(int I) { return I / 2; }", Matcher));
|
|
EXPECT_TRUE(notMatches("int x(int I) { return I % 2; }", Matcher));
|
|
// Ensure '+= isn't mistaken.
|
|
EXPECT_TRUE(notMatches("void x(int &I) { I += 1; }", Matcher));
|
|
}
|
|
|
|
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())),
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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(MatchBinaryOperator, HasOperands) {
|
|
StatementMatcher HasOperands = binaryOperator(
|
|
hasOperands(integerLiteral(equals(1)), integerLiteral(equals(2))));
|
|
EXPECT_TRUE(matches("void x() { 1 + 2; }", HasOperands));
|
|
EXPECT_TRUE(matches("void x() { 2 + 1; }", HasOperands));
|
|
EXPECT_TRUE(notMatches("void x() { 1 + 1; }", HasOperands));
|
|
EXPECT_TRUE(notMatches("void x() { 2 + 2; }", HasOperands));
|
|
EXPECT_TRUE(notMatches("void x() { 0 + 0; }", HasOperands));
|
|
EXPECT_TRUE(notMatches("void x() { 0 + 1; }", HasOperands));
|
|
}
|
|
|
|
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, HasAnyOperatorName) {
|
|
StatementMatcher Matcher = unaryOperator(hasAnyOperatorName("-", "*", "++"));
|
|
|
|
EXPECT_TRUE(matches("int x(int *I) { return *I; }", Matcher));
|
|
EXPECT_TRUE(matches("int x(int I) { return -I; }", Matcher));
|
|
EXPECT_TRUE(matches("void x(int &I) { I++; }", Matcher));
|
|
EXPECT_TRUE(matches("void x(int &I) { ++I; }", Matcher));
|
|
EXPECT_TRUE(notMatches("void x(int &I) { I--; }", Matcher));
|
|
EXPECT_TRUE(notMatches("void x(int &I) { --I; }", Matcher));
|
|
EXPECT_TRUE(notMatches("int *x(int &I) { return &I; }", Matcher));
|
|
}
|
|
|
|
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; }",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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()))));
|
|
}
|
|
|
|
TEST(HasBody, FindsBodyOfFunctions) {
|
|
EXPECT_TRUE(matches("void f() {}", functionDecl(hasBody(compoundStmt()))));
|
|
EXPECT_TRUE(notMatches("void f();", functionDecl(hasBody(compoundStmt()))));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"void f(); void f() {}",
|
|
functionDecl(hasBody(compoundStmt())).bind("func"),
|
|
std::make_unique<VerifyIdIsBoundTo<FunctionDecl>>("func", 1)));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"class C { void f(); }; void C::f() {}",
|
|
cxxMethodDecl(hasBody(compoundStmt())).bind("met"),
|
|
std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("met", 1)));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"class C { C(); }; C::C() {}",
|
|
cxxConstructorDecl(hasBody(compoundStmt())).bind("ctr"),
|
|
std::make_unique<VerifyIdIsBoundTo<CXXConstructorDecl>>("ctr", 1)));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"class C { ~C(); }; C::~C() {}",
|
|
cxxDestructorDecl(hasBody(compoundStmt())).bind("dtr"),
|
|
std::make_unique<VerifyIdIsBoundTo<CXXDestructorDecl>>("dtr", 1)));
|
|
}
|
|
|
|
TEST(HasAnyBody, FindsAnyBodyOfFunctions) {
|
|
EXPECT_TRUE(matches("void f() {}", functionDecl(hasAnyBody(compoundStmt()))));
|
|
EXPECT_TRUE(notMatches("void f();",
|
|
functionDecl(hasAnyBody(compoundStmt()))));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"void f(); void f() {}",
|
|
functionDecl(hasAnyBody(compoundStmt())).bind("func"),
|
|
std::make_unique<VerifyIdIsBoundTo<FunctionDecl>>("func", 2)));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"class C { void f(); }; void C::f() {}",
|
|
cxxMethodDecl(hasAnyBody(compoundStmt())).bind("met"),
|
|
std::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("met", 2)));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"class C { C(); }; C::C() {}",
|
|
cxxConstructorDecl(hasAnyBody(compoundStmt())).bind("ctr"),
|
|
std::make_unique<VerifyIdIsBoundTo<CXXConstructorDecl>>("ctr", 2)));
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
"class C { ~C(); }; C::~C() {}",
|
|
cxxDestructorDecl(hasAnyBody(compoundStmt())).bind("dtr"),
|
|
std::make_unique<VerifyIdIsBoundTo<CXXDestructorDecl>>("dtr", 2)));
|
|
}
|
|
|
|
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++03"}));
|
|
|
|
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++03"}));
|
|
}
|
|
|
|
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;",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
implicitCastExpr(hasImplicitDestinationType(isInteger())))));
|
|
// This test creates an implicit array-to-pointer cast.
|
|
EXPECT_TRUE(matches("int arr[3]; int *p = arr;",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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()))))),
|
|
langCxx11OrLater()));
|
|
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()))))),
|
|
langCxx11OrLater()));
|
|
EXPECT_TRUE(matches(
|
|
"struct H {};"
|
|
"H G();"
|
|
"void f() {"
|
|
" H D = G();"
|
|
"}",
|
|
varDecl(hasInitializer(anyOf(
|
|
ignoringElidableConstructorCall(callExpr()),
|
|
exprWithCleanups(has(ignoringElidableConstructorCall(callExpr())))))),
|
|
langCxx11OrLater()));
|
|
}
|
|
|
|
TEST(Matcher, IgnoresElidableInReturn) {
|
|
auto matcher = expr(ignoringElidableConstructorCall(declRefExpr()));
|
|
EXPECT_TRUE(matches("struct H {};"
|
|
"H f() {"
|
|
" H g;"
|
|
" return g;"
|
|
"}",
|
|
matcher, langCxx11OrLater()));
|
|
EXPECT_TRUE(notMatches("struct H {};"
|
|
"H f() {"
|
|
" return H();"
|
|
"}",
|
|
matcher, langCxx11OrLater()));
|
|
}
|
|
|
|
TEST(Matcher, IgnoreElidableConstructorDoesNotMatchConstructors) {
|
|
EXPECT_TRUE(matches("struct H {};"
|
|
"void f() {"
|
|
" H D;"
|
|
"}",
|
|
varDecl(hasInitializer(
|
|
ignoringElidableConstructorCall(cxxConstructExpr()))),
|
|
langCxx11OrLater()));
|
|
}
|
|
|
|
TEST(Matcher, IgnoresElidableDoesNotPreventMatches) {
|
|
EXPECT_TRUE(matches("void f() {"
|
|
" int D = 10;"
|
|
"}",
|
|
expr(ignoringElidableConstructorCall(integerLiteral())),
|
|
langCxx11OrLater()));
|
|
}
|
|
|
|
TEST(Matcher, IgnoresElidableInVarInit) {
|
|
auto matcher =
|
|
varDecl(hasInitializer(ignoringElidableConstructorCall(callExpr())));
|
|
EXPECT_TRUE(matches("struct H {};"
|
|
"H G();"
|
|
"void f(H D = G()) {"
|
|
" return;"
|
|
"}",
|
|
matcher, langCxx11OrLater()));
|
|
EXPECT_TRUE(matches("struct H {};"
|
|
"H G();"
|
|
"void f() {"
|
|
" H D = G();"
|
|
"}",
|
|
matcher, langCxx11OrLater()));
|
|
}
|
|
|
|
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,
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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();",
|
|
traverse(ast_type_traits::TK_AsIs, varDecl(has(cxxConstructExpr())))));
|
|
}
|
|
|
|
TEST(Traversal, traverseMatcher) {
|
|
|
|
StringRef VarDeclCode = R"cpp(
|
|
void foo()
|
|
{
|
|
int i = 3.0;
|
|
}
|
|
)cpp";
|
|
|
|
auto Matcher = varDecl(hasInitializer(floatLiteral()));
|
|
|
|
EXPECT_TRUE(notMatches(VarDeclCode, traverse(TK_AsIs, Matcher)));
|
|
EXPECT_TRUE(matches(VarDeclCode,
|
|
traverse(TK_IgnoreImplicitCastsAndParentheses, Matcher)));
|
|
|
|
auto ParentMatcher = floatLiteral(hasParent(varDecl(hasName("i"))));
|
|
|
|
EXPECT_TRUE(notMatches(VarDeclCode, traverse(TK_AsIs, ParentMatcher)));
|
|
EXPECT_TRUE(matches(VarDeclCode,
|
|
traverse(TK_IgnoreUnlessSpelledInSource, ParentMatcher)));
|
|
|
|
EXPECT_TRUE(matches(
|
|
VarDeclCode, decl(traverse(TK_AsIs, anyOf(cxxRecordDecl(), varDecl())))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(VarDeclCode,
|
|
floatLiteral(traverse(TK_AsIs, hasParent(implicitCastExpr())))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(VarDeclCode, floatLiteral(traverse(TK_IgnoreUnlessSpelledInSource,
|
|
hasParent(varDecl())))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(VarDeclCode, varDecl(traverse(TK_IgnoreUnlessSpelledInSource,
|
|
unless(parmVarDecl())))));
|
|
|
|
EXPECT_TRUE(
|
|
notMatches(VarDeclCode, varDecl(traverse(TK_IgnoreUnlessSpelledInSource,
|
|
has(implicitCastExpr())))));
|
|
|
|
EXPECT_TRUE(matches(VarDeclCode,
|
|
varDecl(traverse(TK_AsIs, has(implicitCastExpr())))));
|
|
|
|
EXPECT_TRUE(matches(
|
|
VarDeclCode, traverse(TK_IgnoreUnlessSpelledInSource,
|
|
// The has() below strips away the ImplicitCastExpr
|
|
// before the traverse(AsIs) gets to process it.
|
|
varDecl(has(traverse(TK_AsIs, floatLiteral()))))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(VarDeclCode, functionDecl(traverse(TK_AsIs, hasName("foo")))));
|
|
|
|
EXPECT_TRUE(matches(
|
|
VarDeclCode,
|
|
functionDecl(traverse(TK_IgnoreUnlessSpelledInSource, hasName("foo")))));
|
|
|
|
EXPECT_TRUE(matches(
|
|
VarDeclCode, functionDecl(traverse(TK_AsIs, hasAnyName("foo", "bar")))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(VarDeclCode, functionDecl(traverse(TK_IgnoreUnlessSpelledInSource,
|
|
hasAnyName("foo", "bar")))));
|
|
|
|
StringRef Code = R"cpp(
|
|
void foo(int a)
|
|
{
|
|
int i = 3.0 + a;
|
|
}
|
|
void bar()
|
|
{
|
|
foo(7.0);
|
|
}
|
|
)cpp";
|
|
EXPECT_TRUE(
|
|
matches(Code, callExpr(traverse(TK_IgnoreUnlessSpelledInSource,
|
|
hasArgument(0, floatLiteral())))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code, callExpr(traverse(TK_IgnoreUnlessSpelledInSource,
|
|
hasAnyArgument(floatLiteral())))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(VarDeclCode, varDecl(traverse(TK_IgnoreUnlessSpelledInSource,
|
|
hasType(builtinType())))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(VarDeclCode,
|
|
functionDecl(hasName("foo"),
|
|
traverse(TK_AsIs, hasDescendant(floatLiteral())))));
|
|
|
|
EXPECT_TRUE(notMatches(
|
|
Code, traverse(TK_AsIs, floatLiteral(hasParent(callExpr(
|
|
callee(functionDecl(hasName("foo")))))))));
|
|
EXPECT_TRUE(matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
|
|
floatLiteral(hasParent(callExpr(callee(
|
|
functionDecl(hasName("foo")))))))));
|
|
|
|
Code = R"cpp(
|
|
void foo()
|
|
{
|
|
int i = (3);
|
|
}
|
|
)cpp";
|
|
EXPECT_TRUE(matches(
|
|
Code, traverse(TK_IgnoreUnlessSpelledInSource,
|
|
varDecl(hasInitializer(integerLiteral(equals(3)))))));
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
integerLiteral(equals(3), hasParent(varDecl(hasName("i")))))));
|
|
|
|
Code = R"cpp(
|
|
const char *SomeString{"str"};
|
|
)cpp";
|
|
EXPECT_TRUE(
|
|
matches(Code, traverse(TK_AsIs, stringLiteral(hasParent(implicitCastExpr(
|
|
hasParent(initListExpr())))))));
|
|
EXPECT_TRUE(
|
|
matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
|
|
stringLiteral(hasParent(initListExpr())))));
|
|
|
|
Code = R"cpp(
|
|
struct String
|
|
{
|
|
String(const char*, int = -1) {}
|
|
};
|
|
|
|
void stringConstruct()
|
|
{
|
|
String s = "foo";
|
|
s = "bar";
|
|
}
|
|
)cpp";
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_AsIs,
|
|
functionDecl(
|
|
hasName("stringConstruct"),
|
|
hasDescendant(varDecl(
|
|
hasName("s"),
|
|
hasInitializer(ignoringImplicit(cxxConstructExpr(hasArgument(
|
|
0, ignoringImplicit(cxxConstructExpr(hasArgument(
|
|
0, ignoringImplicit(stringLiteral()))))))))))))));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_AsIs,
|
|
functionDecl(hasName("stringConstruct"),
|
|
hasDescendant(cxxOperatorCallExpr(
|
|
isAssignmentOperator(),
|
|
hasArgument(1, ignoringImplicit(
|
|
cxxConstructExpr(hasArgument(
|
|
0, ignoringImplicit(stringLiteral())))))
|
|
))))));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code, traverse(TK_IgnoreUnlessSpelledInSource,
|
|
functionDecl(hasName("stringConstruct"),
|
|
hasDescendant(varDecl(
|
|
hasName("s"),
|
|
hasInitializer(stringLiteral())))))));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
|
|
functionDecl(hasName("stringConstruct"),
|
|
hasDescendant(cxxOperatorCallExpr(
|
|
isAssignmentOperator(),
|
|
hasArgument(1, stringLiteral())))))));
|
|
|
|
Code = R"cpp(
|
|
|
|
struct C1 {};
|
|
struct C2 { operator C1(); };
|
|
|
|
void conversionOperator()
|
|
{
|
|
C2* c2;
|
|
C1 c1 = (*c2);
|
|
}
|
|
|
|
)cpp";
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_AsIs,
|
|
functionDecl(
|
|
hasName("conversionOperator"),
|
|
hasDescendant(
|
|
varDecl(
|
|
hasName("c1"),
|
|
hasInitializer(
|
|
ignoringImplicit(cxxConstructExpr(hasArgument(
|
|
0, ignoringImplicit(
|
|
cxxMemberCallExpr(onImplicitObjectArgument(
|
|
ignoringParenImpCasts(unaryOperator(
|
|
hasOperatorName("*")))))))))))
|
|
.bind("c1"))))));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
functionDecl(hasName("conversionOperator"),
|
|
hasDescendant(varDecl(
|
|
hasName("c1"), hasInitializer(unaryOperator(
|
|
hasOperatorName("*")))))))));
|
|
|
|
Code = R"cpp(
|
|
|
|
template <unsigned alignment>
|
|
void template_test() {
|
|
static_assert(alignment, "");
|
|
}
|
|
void actual_template_test() {
|
|
template_test<4>();
|
|
}
|
|
|
|
)cpp";
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(TK_AsIs,
|
|
staticAssertDecl(has(implicitCastExpr(has(
|
|
substNonTypeTemplateParmExpr(has(integerLiteral())))))))));
|
|
|
|
EXPECT_TRUE(matches(Code, traverse(TK_IgnoreUnlessSpelledInSource,
|
|
staticAssertDecl(has(integerLiteral())))));
|
|
}
|
|
|
|
template <typename MatcherT>
|
|
bool matcherTemplateWithBinding(StringRef Code, const MatcherT &M) {
|
|
return matchAndVerifyResultTrue(
|
|
Code, M.bind("matchedStmt"),
|
|
std::make_unique<VerifyIdIsBoundTo<ReturnStmt>>("matchedStmt", 1));
|
|
}
|
|
|
|
TEST(Traversal, traverseWithBinding) {
|
|
// Some existing matcher code expects to take a matcher as a
|
|
// template arg and bind to it. Verify that that works.
|
|
|
|
llvm::StringRef Code = R"cpp(
|
|
int foo()
|
|
{
|
|
return 42.0;
|
|
}
|
|
)cpp";
|
|
EXPECT_TRUE(matcherTemplateWithBinding(
|
|
Code, traverse(TK_AsIs,
|
|
returnStmt(has(implicitCastExpr(has(floatLiteral())))))));
|
|
}
|
|
|
|
TEST(Traversal, traverseMatcherNesting) {
|
|
|
|
StringRef Code = R"cpp(
|
|
float bar(int i)
|
|
{
|
|
return i;
|
|
}
|
|
|
|
void foo()
|
|
{
|
|
bar(bar(3.0));
|
|
}
|
|
)cpp";
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code, traverse(TK_IgnoreImplicitCastsAndParentheses,
|
|
callExpr(has(callExpr(traverse(
|
|
TK_AsIs, callExpr(has(implicitCastExpr(
|
|
has(floatLiteral())))))))))));
|
|
}
|
|
|
|
TEST(Traversal, traverseMatcherThroughImplicit) {
|
|
StringRef Code = R"cpp(
|
|
struct S {
|
|
S(int x);
|
|
};
|
|
|
|
void constructImplicit() {
|
|
int a = 8;
|
|
S s(a);
|
|
}
|
|
)cpp";
|
|
|
|
auto Matcher =
|
|
traverse(TK_IgnoreImplicitCastsAndParentheses, implicitCastExpr());
|
|
|
|
// Verfiy that it does not segfault
|
|
EXPECT_FALSE(matches(Code, Matcher));
|
|
}
|
|
|
|
TEST(Traversal, traverseMatcherThroughMemoization) {
|
|
|
|
StringRef Code = R"cpp(
|
|
void foo()
|
|
{
|
|
int i = 3.0;
|
|
}
|
|
)cpp";
|
|
|
|
auto Matcher = varDecl(hasInitializer(floatLiteral()));
|
|
|
|
// Matchers such as hasDescendant memoize their result regarding AST
|
|
// nodes. In the matcher below, the first use of hasDescendant(Matcher)
|
|
// fails, and the use of it inside the traverse() matcher should pass
|
|
// causing the overall matcher to be a true match.
|
|
// This test verifies that the first false result is not re-used, which
|
|
// would cause the overall matcher to be incorrectly false.
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
functionDecl(anyOf(hasDescendant(Matcher),
|
|
traverse(TK_IgnoreImplicitCastsAndParentheses,
|
|
functionDecl(hasDescendant(Matcher)))))));
|
|
}
|
|
|
|
TEST(Traversal, traverseUnlessSpelledInSource) {
|
|
|
|
StringRef Code = R"cpp(
|
|
|
|
struct A
|
|
{
|
|
};
|
|
|
|
struct B
|
|
{
|
|
B(int);
|
|
B(A const& a);
|
|
B();
|
|
};
|
|
|
|
struct C
|
|
{
|
|
operator B();
|
|
};
|
|
|
|
B func1() {
|
|
return 42;
|
|
}
|
|
|
|
B func2() {
|
|
return B{42};
|
|
}
|
|
|
|
B func3() {
|
|
return B(42);
|
|
}
|
|
|
|
B func4() {
|
|
return B();
|
|
}
|
|
|
|
B func5() {
|
|
return B{};
|
|
}
|
|
|
|
B func6() {
|
|
return C();
|
|
}
|
|
|
|
B func7() {
|
|
return A();
|
|
}
|
|
|
|
B func8() {
|
|
return C{};
|
|
}
|
|
|
|
B func9() {
|
|
return A{};
|
|
}
|
|
|
|
B func10() {
|
|
A a;
|
|
return a;
|
|
}
|
|
|
|
B func11() {
|
|
B b;
|
|
return b;
|
|
}
|
|
|
|
B func12() {
|
|
C c;
|
|
return c;
|
|
}
|
|
|
|
void func13() {
|
|
int a = 0;
|
|
int c = 0;
|
|
|
|
[a, b = c](int d) { int e = d; };
|
|
}
|
|
|
|
void func14() {
|
|
[] <typename TemplateType> (TemplateType t, TemplateType u) { int e = t + u; };
|
|
float i = 42.0;
|
|
}
|
|
|
|
)cpp";
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func1"))),
|
|
hasReturnValue(integerLiteral(equals(42))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
integerLiteral(equals(42),
|
|
hasParent(returnStmt(forFunction(
|
|
functionDecl(hasName("func1"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func2"))),
|
|
hasReturnValue(cxxTemporaryObjectExpr(
|
|
hasArgument(0, integerLiteral(equals(42))))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_IgnoreUnlessSpelledInSource,
|
|
integerLiteral(equals(42),
|
|
hasParent(cxxTemporaryObjectExpr(hasParent(returnStmt(
|
|
forFunction(functionDecl(hasName("func2"))))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func3"))),
|
|
hasReturnValue(cxxFunctionalCastExpr(
|
|
hasSourceExpression(integerLiteral(equals(42))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_IgnoreUnlessSpelledInSource,
|
|
integerLiteral(equals(42),
|
|
hasParent(cxxFunctionalCastExpr(hasParent(returnStmt(
|
|
forFunction(functionDecl(hasName("func3"))))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func4"))),
|
|
hasReturnValue(cxxTemporaryObjectExpr()))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func5"))),
|
|
hasReturnValue(cxxTemporaryObjectExpr()))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func6"))),
|
|
hasReturnValue(cxxTemporaryObjectExpr()))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func7"))),
|
|
hasReturnValue(cxxTemporaryObjectExpr()))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func8"))),
|
|
hasReturnValue(cxxFunctionalCastExpr(
|
|
hasSourceExpression(initListExpr()))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func9"))),
|
|
hasReturnValue(cxxFunctionalCastExpr(
|
|
hasSourceExpression(initListExpr()))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func10"))),
|
|
hasReturnValue(declRefExpr(to(varDecl(hasName("a"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
declRefExpr(to(varDecl(hasName("a"))),
|
|
hasParent(returnStmt(forFunction(
|
|
functionDecl(hasName("func10"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func11"))),
|
|
hasReturnValue(declRefExpr(to(varDecl(hasName("b"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
declRefExpr(to(varDecl(hasName("b"))),
|
|
hasParent(returnStmt(forFunction(
|
|
functionDecl(hasName("func11"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_IgnoreUnlessSpelledInSource,
|
|
returnStmt(forFunction(functionDecl(hasName("func12"))),
|
|
hasReturnValue(declRefExpr(to(varDecl(hasName("c"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
declRefExpr(to(varDecl(hasName("c"))),
|
|
hasParent(returnStmt(forFunction(
|
|
functionDecl(hasName("func12"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(
|
|
TK_IgnoreUnlessSpelledInSource,
|
|
lambdaExpr(forFunction(functionDecl(hasName("func13"))),
|
|
has(compoundStmt(hasDescendant(varDecl(hasName("e"))))),
|
|
has(declRefExpr(to(varDecl(hasName("a"))))),
|
|
has(varDecl(hasName("b"), hasInitializer(declRefExpr(to(
|
|
varDecl(hasName("c"))))))),
|
|
has(parmVarDecl(hasName("d"))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(
|
|
matches(Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
declRefExpr(to(varDecl(hasName("a"))),
|
|
hasParent(lambdaExpr(forFunction(
|
|
functionDecl(hasName("func13"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
varDecl(hasName("b"),
|
|
hasInitializer(declRefExpr(to(varDecl(hasName("c"))))),
|
|
hasParent(lambdaExpr(
|
|
forFunction(functionDecl(hasName("func13"))))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
lambdaExpr(forFunction(functionDecl(hasName("func14"))),
|
|
has(templateTypeParmDecl(hasName("TemplateType"))))),
|
|
langCxx20OrLater()));
|
|
|
|
EXPECT_TRUE(matches(
|
|
Code,
|
|
traverse(TK_IgnoreUnlessSpelledInSource,
|
|
functionDecl(hasName("func14"), hasDescendant(floatLiteral()))),
|
|
langCxx20OrLater()));
|
|
}
|
|
|
|
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);",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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; }",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
implicitCastExpr(hasSourceExpression(cxxConstructExpr())))));
|
|
}
|
|
|
|
TEST(HasSourceExpression, MatchesExplicitCasts) {
|
|
EXPECT_TRUE(matches("float x = static_cast<float>(42);",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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:; } }",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
switchStmt(forEachSwitchCase(caseStmt(hasCaseConstant(
|
|
constantExpr(has(integerLiteral())))))))));
|
|
EXPECT_TRUE(
|
|
notMatches("void x() { switch(42) { case 1+1: case 2+2:; } }",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
switchStmt(forEachSwitchCase(caseStmt(hasCaseConstant(
|
|
constantExpr(has(integerLiteral())))))))));
|
|
EXPECT_TRUE(
|
|
notMatches("void x() { switch(42) { case 1 ... 2:; } }",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
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(notMatches("void f();",
|
|
functionDecl(hasExplicitSpecifier(constantExpr())),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(
|
|
notMatches("template<bool b> struct S { explicit operator int(); };",
|
|
cxxConversionDecl(
|
|
hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(
|
|
notMatches("template<bool b> struct S { explicit(b) operator int(); };",
|
|
cxxConversionDecl(
|
|
hasExplicitSpecifier(constantExpr(has(cxxBoolLiteral())))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(matches("struct S { explicit(true) operator int(); };",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxConversionDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(matches("struct S { explicit(false) operator int(); };",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxConversionDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(notMatches("template<bool b> struct S { explicit(b) S(int); };",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxConstructorDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(matches("struct S { explicit(true) S(int); };",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxConstructorDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(matches("struct S { explicit(false) S(int); };",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxConstructorDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(
|
|
notMatches("template<typename T> struct S { S(int); };"
|
|
"template<bool b = true> explicit(b) S(int) -> S<int>;",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxDeductionGuideDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(matches("template<typename T> struct S { S(int); };"
|
|
"explicit(true) S(int) -> S<int>;",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxDeductionGuideDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
EXPECT_TRUE(matches("template<typename T> struct S { S(int); };"
|
|
"explicit(false) S(int) -> S<int>;",
|
|
traverse(ast_type_traits::TK_AsIs,
|
|
cxxDeductionGuideDecl(hasExplicitSpecifier(
|
|
constantExpr(has(cxxBoolLiteral()))))),
|
|
langCxx20OrLater()));
|
|
}
|
|
|
|
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(TemplateArgumentLoc, Matches) {
|
|
EXPECT_TRUE(matchAndVerifyResultTrue(
|
|
R"cpp(
|
|
template <typename A, int B, template <typename> class C> class X {};
|
|
class A {};
|
|
const int B = 42;
|
|
template <typename> class C {};
|
|
X<A, B, C> x;
|
|
)cpp",
|
|
templateArgumentLoc().bind("x"),
|
|
std::make_unique<VerifyIdIsBoundTo<TemplateArgumentLoc>>("x", 3)));
|
|
}
|
|
|
|
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(MatcherMemoize, HasParentDiffersFromHas) {
|
|
// Test introduced after detecting a bug in memoization
|
|
constexpr auto code = "void f() { throw 1; }";
|
|
EXPECT_TRUE(notMatches(
|
|
code,
|
|
cxxThrowExpr(hasParent(expr()))));
|
|
EXPECT_TRUE(matches(
|
|
code,
|
|
cxxThrowExpr(has(expr()))));
|
|
EXPECT_TRUE(matches(
|
|
code,
|
|
cxxThrowExpr(anyOf(hasParent(expr()), has(expr())))));
|
|
}
|
|
|
|
TEST(MatcherMemoize, HasDiffersFromHasDescendant) {
|
|
// Test introduced after detecting a bug in memoization
|
|
constexpr auto code = "void f() { throw 1+1; }";
|
|
EXPECT_TRUE(notMatches(
|
|
code,
|
|
cxxThrowExpr(has(integerLiteral()))));
|
|
EXPECT_TRUE(matches(
|
|
code,
|
|
cxxThrowExpr(hasDescendant(integerLiteral()))));
|
|
EXPECT_TRUE(notMatches(code,
|
|
cxxThrowExpr(allOf(
|
|
hasDescendant(integerLiteral()),
|
|
has(integerLiteral())))));
|
|
}
|
|
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) {
|
|
StringRef 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) {
|
|
StringRef 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) {
|
|
StringRef 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) {
|
|
StringRef 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) {
|
|
StringRef CppString1 = "struct PosVec {"
|
|
" PosVec& operator=(const PosVec&) {"
|
|
" auto x = [] { return 1; };"
|
|
" return *this;"
|
|
" }"
|
|
"};";
|
|
StringRef 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) {
|
|
StringRef 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) {
|
|
StringRef 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));
|
|
}
|
|
|
|
TEST(CXXNewExpr, Array) {
|
|
StatementMatcher NewArray = cxxNewExpr(isArray());
|
|
|
|
EXPECT_TRUE(matches("void foo() { int *Ptr = new int[10]; }", NewArray));
|
|
EXPECT_TRUE(notMatches("void foo() { int *Ptr = new int; }", NewArray));
|
|
|
|
StatementMatcher NewArraySize10 =
|
|
cxxNewExpr(hasArraySize(integerLiteral(equals(10))));
|
|
EXPECT_TRUE(
|
|
matches("void foo() { int *Ptr = new int[10]; }", NewArraySize10));
|
|
EXPECT_TRUE(
|
|
notMatches("void foo() { int *Ptr = new int[20]; }", NewArraySize10));
|
|
}
|
|
|
|
TEST(CXXNewExpr, PlacementArgs) {
|
|
StatementMatcher IsPlacementNew = cxxNewExpr(hasAnyPlacementArg(anything()));
|
|
|
|
EXPECT_TRUE(matches(R"(
|
|
void* operator new(decltype(sizeof(void*)), void*);
|
|
int *foo(void* Storage) {
|
|
return new (Storage) int;
|
|
})",
|
|
IsPlacementNew));
|
|
|
|
EXPECT_TRUE(matches(R"(
|
|
void* operator new(decltype(sizeof(void*)), void*, unsigned);
|
|
int *foo(void* Storage) {
|
|
return new (Storage, 16) int;
|
|
})",
|
|
cxxNewExpr(hasPlacementArg(
|
|
1, ignoringImpCasts(integerLiteral(equals(16)))))));
|
|
|
|
EXPECT_TRUE(notMatches(R"(
|
|
void* operator new(decltype(sizeof(void*)), void*);
|
|
int *foo(void* Storage) {
|
|
return new int;
|
|
})",
|
|
IsPlacementNew));
|
|
}
|
|
|
|
} // namespace ast_matchers
|
|
} // namespace clang
|