Dividied ASTMatcherTests into 4 files
fix for long compilation [20061]
http://reviews.llvm.org/D20210
llvm-svn: 269802
diff --git a/clang/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp b/clang/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
new file mode 100644
index 0000000..dc26607
--- /dev/null
+++ b/clang/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
@@ -0,0 +1,1888 @@
+// unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp - AST matcher unit tests//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ASTMatchersTest.h"
+#include "clang/AST/PrettyPrinter.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+#include "clang/Tooling/Tooling.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/Support/Host.h"
+#include "gtest/gtest.h"
+
+namespace clang {
+namespace ast_matchers {
+
+
+TEST(AllOf, AllOverloadsWork) {
+ const char Program[] =
+ "struct T { };"
+ "int f(int, T*, int, int);"
+ "void g(int x) { T t; f(x, &t, 3, 4); }";
+ EXPECT_TRUE(matches(Program,
+ callExpr(allOf(callee(functionDecl(hasName("f"))),
+ hasArgument(0, declRefExpr(to(varDecl())))))));
+ EXPECT_TRUE(matches(Program,
+ callExpr(allOf(callee(functionDecl(hasName("f"))),
+ hasArgument(0, declRefExpr(to(varDecl()))),
+ hasArgument(1, hasType(pointsTo(
+ recordDecl(hasName("T")))))))));
+ EXPECT_TRUE(matches(Program,
+ callExpr(allOf(callee(functionDecl(hasName("f"))),
+ hasArgument(0, declRefExpr(to(varDecl()))),
+ hasArgument(1, hasType(pointsTo(
+ recordDecl(hasName("T"))))),
+ hasArgument(2, integerLiteral(equals(3)))))));
+ EXPECT_TRUE(matches(Program,
+ callExpr(allOf(callee(functionDecl(hasName("f"))),
+ hasArgument(0, declRefExpr(to(varDecl()))),
+ hasArgument(1, hasType(pointsTo(
+ recordDecl(hasName("T"))))),
+ hasArgument(2, integerLiteral(equals(3))),
+ hasArgument(3, integerLiteral(equals(4)))))));
+}
+
+TEST(DeclarationMatcher, MatchHas) {
+ DeclarationMatcher HasClassX = recordDecl(has(recordDecl(hasName("X"))));
+ EXPECT_TRUE(matches("class Y { class X {}; };", HasClassX));
+ EXPECT_TRUE(matches("class X {};", HasClassX));
+
+ DeclarationMatcher YHasClassX =
+ recordDecl(hasName("Y"), has(recordDecl(hasName("X"))));
+ EXPECT_TRUE(matches("class Y { class X {}; };", YHasClassX));
+ EXPECT_TRUE(notMatches("class X {};", YHasClassX));
+ EXPECT_TRUE(
+ notMatches("class Y { class Z { class X {}; }; };", YHasClassX));
+}
+
+TEST(DeclarationMatcher, MatchHasRecursiveAllOf) {
+ DeclarationMatcher Recursive =
+ recordDecl(
+ has(recordDecl(
+ has(recordDecl(hasName("X"))),
+ has(recordDecl(hasName("Y"))),
+ hasName("Z"))),
+ has(recordDecl(
+ has(recordDecl(hasName("A"))),
+ has(recordDecl(hasName("B"))),
+ hasName("C"))),
+ hasName("F"));
+
+ EXPECT_TRUE(matches(
+ "class F {"
+ " class Z {"
+ " class X {};"
+ " class Y {};"
+ " };"
+ " class C {"
+ " class A {};"
+ " class B {};"
+ " };"
+ "};", Recursive));
+
+ EXPECT_TRUE(matches(
+ "class F {"
+ " class Z {"
+ " class A {};"
+ " class X {};"
+ " class Y {};"
+ " };"
+ " class C {"
+ " class X {};"
+ " class A {};"
+ " class B {};"
+ " };"
+ "};", Recursive));
+
+ EXPECT_TRUE(matches(
+ "class O1 {"
+ " class O2 {"
+ " class F {"
+ " class Z {"
+ " class A {};"
+ " class X {};"
+ " class Y {};"
+ " };"
+ " class C {"
+ " class X {};"
+ " class A {};"
+ " class B {};"
+ " };"
+ " };"
+ " };"
+ "};", Recursive));
+}
+
+TEST(DeclarationMatcher, MatchHasRecursiveAnyOf) {
+ DeclarationMatcher Recursive =
+ recordDecl(
+ anyOf(
+ has(recordDecl(
+ anyOf(
+ has(recordDecl(
+ hasName("X"))),
+ has(recordDecl(
+ hasName("Y"))),
+ hasName("Z")))),
+ has(recordDecl(
+ anyOf(
+ hasName("C"),
+ has(recordDecl(
+ hasName("A"))),
+ has(recordDecl(
+ hasName("B")))))),
+ hasName("F")));
+
+ EXPECT_TRUE(matches("class F {};", Recursive));
+ EXPECT_TRUE(matches("class Z {};", Recursive));
+ EXPECT_TRUE(matches("class C {};", Recursive));
+ EXPECT_TRUE(matches("class M { class N { class X {}; }; };", Recursive));
+ EXPECT_TRUE(matches("class M { class N { class B {}; }; };", Recursive));
+ EXPECT_TRUE(
+ matches("class O1 { class O2 {"
+ " class M { class N { class B {}; }; }; "
+ "}; };", Recursive));
+}
+
+TEST(DeclarationMatcher, MatchNot) {
+ DeclarationMatcher NotClassX =
+ cxxRecordDecl(
+ isDerivedFrom("Y"),
+ unless(hasName("X")));
+ EXPECT_TRUE(notMatches("", NotClassX));
+ EXPECT_TRUE(notMatches("class Y {};", NotClassX));
+ EXPECT_TRUE(matches("class Y {}; class Z : public Y {};", NotClassX));
+ EXPECT_TRUE(notMatches("class Y {}; class X : public Y {};", NotClassX));
+ EXPECT_TRUE(
+ notMatches("class Y {}; class Z {}; class X : public Y {};",
+ NotClassX));
+
+ DeclarationMatcher ClassXHasNotClassY =
+ recordDecl(
+ hasName("X"),
+ has(recordDecl(hasName("Z"))),
+ unless(
+ has(recordDecl(hasName("Y")))));
+ EXPECT_TRUE(matches("class X { class Z {}; };", ClassXHasNotClassY));
+ EXPECT_TRUE(notMatches("class X { class Y {}; class Z {}; };",
+ ClassXHasNotClassY));
+
+ DeclarationMatcher NamedNotRecord =
+ namedDecl(hasName("Foo"), unless(recordDecl()));
+ EXPECT_TRUE(matches("void Foo(){}", NamedNotRecord));
+ EXPECT_TRUE(notMatches("struct Foo {};", NamedNotRecord));
+}
+
+TEST(CastExpression, HasCastKind) {
+ EXPECT_TRUE(matches("char *p = 0;",
+ castExpr(hasCastKind(CK_NullToPointer))));
+ EXPECT_TRUE(notMatches("char *p = 0;",
+ castExpr(hasCastKind(CK_DerivedToBase))));
+ EXPECT_TRUE(matches("char *p = 0;",
+ implicitCastExpr(hasCastKind(CK_NullToPointer))));
+}
+
+TEST(DeclarationMatcher, HasDescendant) {
+ DeclarationMatcher ZDescendantClassX =
+ recordDecl(
+ hasDescendant(recordDecl(hasName("X"))),
+ hasName("Z"));
+ EXPECT_TRUE(matches("class Z { class X {}; };", ZDescendantClassX));
+ EXPECT_TRUE(
+ matches("class Z { class Y { class X {}; }; };", ZDescendantClassX));
+ EXPECT_TRUE(
+ matches("class Z { class A { class Y { class X {}; }; }; };",
+ ZDescendantClassX));
+ EXPECT_TRUE(
+ matches("class Z { class A { class B { class Y { class X {}; }; }; }; };",
+ ZDescendantClassX));
+ EXPECT_TRUE(notMatches("class Z {};", ZDescendantClassX));
+
+ DeclarationMatcher ZDescendantClassXHasClassY =
+ recordDecl(
+ hasDescendant(recordDecl(has(recordDecl(hasName("Y"))),
+ hasName("X"))),
+ hasName("Z"));
+ EXPECT_TRUE(matches("class Z { class X { class Y {}; }; };",
+ ZDescendantClassXHasClassY));
+ EXPECT_TRUE(
+ matches("class Z { class A { class B { class X { class Y {}; }; }; }; };",
+ ZDescendantClassXHasClassY));
+ EXPECT_TRUE(notMatches(
+ "class Z {"
+ " class A {"
+ " class B {"
+ " class X {"
+ " class C {"
+ " class Y {};"
+ " };"
+ " };"
+ " }; "
+ " };"
+ "};", ZDescendantClassXHasClassY));
+
+ DeclarationMatcher ZDescendantClassXDescendantClassY =
+ recordDecl(
+ hasDescendant(recordDecl(hasDescendant(recordDecl(hasName("Y"))),
+ hasName("X"))),
+ hasName("Z"));
+ EXPECT_TRUE(
+ matches("class Z { class A { class X { class B { class Y {}; }; }; }; };",
+ ZDescendantClassXDescendantClassY));
+ EXPECT_TRUE(matches(
+ "class Z {"
+ " class A {"
+ " class X {"
+ " class B {"
+ " class Y {};"
+ " };"
+ " class Y {};"
+ " };"
+ " };"
+ "};", ZDescendantClassXDescendantClassY));
+}
+
+TEST(DeclarationMatcher, HasDescendantMemoization) {
+ DeclarationMatcher CannotMemoize =
+ decl(hasDescendant(typeLoc().bind("x")), has(decl()));
+ EXPECT_TRUE(matches("void f() { int i; }", CannotMemoize));
+}
+
+TEST(DeclarationMatcher, HasDescendantMemoizationUsesRestrictKind) {
+ auto Name = hasName("i");
+ auto VD = internal::Matcher<VarDecl>(Name).dynCastTo<Decl>();
+ auto RD = internal::Matcher<RecordDecl>(Name).dynCastTo<Decl>();
+ // Matching VD first should not make a cache hit for RD.
+ EXPECT_TRUE(notMatches("void f() { int i; }",
+ decl(hasDescendant(VD), hasDescendant(RD))));
+ EXPECT_TRUE(notMatches("void f() { int i; }",
+ decl(hasDescendant(RD), hasDescendant(VD))));
+ // Not matching RD first should not make a cache hit for VD either.
+ EXPECT_TRUE(matches("void f() { int i; }",
+ decl(anyOf(hasDescendant(RD), hasDescendant(VD)))));
+}
+
+TEST(DeclarationMatcher, HasAncestorMemoization) {
+ // This triggers an hasAncestor with a TemplateArgument in the bound nodes.
+ // That node can't be memoized so we have to check for it before trying to put
+ // it on the cache.
+ DeclarationMatcher CannotMemoize = classTemplateSpecializationDecl(
+ hasAnyTemplateArgument(templateArgument().bind("targ")),
+ forEach(fieldDecl(hasAncestor(forStmt()))));
+
+ EXPECT_TRUE(notMatches("template <typename T> struct S;"
+ "template <> struct S<int>{ int i; int j; };",
+ CannotMemoize));
+}
+
+TEST(DeclarationMatcher, HasAttr) {
+ EXPECT_TRUE(matches("struct __attribute__((warn_unused)) X {};",
+ decl(hasAttr(clang::attr::WarnUnused))));
+ EXPECT_FALSE(matches("struct X {};",
+ decl(hasAttr(clang::attr::WarnUnused))));
+}
+
+
+TEST(DeclarationMatcher, MatchAnyOf) {
+ DeclarationMatcher YOrZDerivedFromX = cxxRecordDecl(
+ anyOf(hasName("Y"), allOf(isDerivedFrom("X"), hasName("Z"))));
+ EXPECT_TRUE(matches("class X {}; class Z : public X {};", YOrZDerivedFromX));
+ EXPECT_TRUE(matches("class Y {};", YOrZDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("class X {}; class W : public X {};", YOrZDerivedFromX));
+ EXPECT_TRUE(notMatches("class Z {};", YOrZDerivedFromX));
+
+ DeclarationMatcher XOrYOrZOrU =
+ recordDecl(anyOf(hasName("X"), hasName("Y"), hasName("Z"), hasName("U")));
+ EXPECT_TRUE(matches("class X {};", XOrYOrZOrU));
+ EXPECT_TRUE(notMatches("class V {};", XOrYOrZOrU));
+
+ DeclarationMatcher XOrYOrZOrUOrV =
+ recordDecl(anyOf(hasName("X"), hasName("Y"), hasName("Z"), hasName("U"),
+ hasName("V")));
+ EXPECT_TRUE(matches("class X {};", XOrYOrZOrUOrV));
+ EXPECT_TRUE(matches("class Y {};", XOrYOrZOrUOrV));
+ EXPECT_TRUE(matches("class Z {};", XOrYOrZOrUOrV));
+ EXPECT_TRUE(matches("class U {};", XOrYOrZOrUOrV));
+ EXPECT_TRUE(matches("class V {};", XOrYOrZOrUOrV));
+ EXPECT_TRUE(notMatches("class A {};", XOrYOrZOrUOrV));
+
+ StatementMatcher MixedTypes = stmt(anyOf(ifStmt(), binaryOperator()));
+ EXPECT_TRUE(matches("int F() { return 1 + 2; }", MixedTypes));
+ EXPECT_TRUE(matches("int F() { if (true) return 1; }", MixedTypes));
+ EXPECT_TRUE(notMatches("int F() { return 1; }", MixedTypes));
+
+ EXPECT_TRUE(
+ matches("void f() try { } catch (int) { } catch (...) { }",
+ cxxCatchStmt(anyOf(hasDescendant(varDecl()), isCatchAll()))));
+}
+
+TEST(DeclarationMatcher, ClassIsDerived) {
+ DeclarationMatcher IsDerivedFromX = cxxRecordDecl(isDerivedFrom("X"));
+
+ EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsDerivedFromX));
+ EXPECT_TRUE(notMatches("class X {};", IsDerivedFromX));
+ EXPECT_TRUE(notMatches("class X;", IsDerivedFromX));
+ EXPECT_TRUE(notMatches("class Y;", IsDerivedFromX));
+ EXPECT_TRUE(notMatches("", IsDerivedFromX));
+
+ DeclarationMatcher IsAX = cxxRecordDecl(isSameOrDerivedFrom("X"));
+
+ EXPECT_TRUE(matches("class X {}; class Y : public X {};", IsAX));
+ EXPECT_TRUE(matches("class X {};", IsAX));
+ EXPECT_TRUE(matches("class X;", IsAX));
+ EXPECT_TRUE(notMatches("class Y;", IsAX));
+ EXPECT_TRUE(notMatches("", IsAX));
+
+ DeclarationMatcher ZIsDerivedFromX =
+ cxxRecordDecl(hasName("Z"), isDerivedFrom("X"));
+ EXPECT_TRUE(
+ matches("class X {}; class Y : public X {}; class Z : public Y {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class X {};"
+ "template<class T> class Y : public X {};"
+ "class Z : public Y<int> {};", ZIsDerivedFromX));
+ EXPECT_TRUE(matches("class X {}; template<class T> class Z : public X {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<class T> class X {}; "
+ "template<class T> class Z : public X<T> {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<class T, class U=T> class X {}; "
+ "template<class T> class Z : public X<T> {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template<class X> class A { class Z : public X {}; };",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<class X> class A { public: class Z : public X {}; }; "
+ "class X{}; void y() { A<X>::Z z; }", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template <class T> class X {}; "
+ "template<class Y> class A { class Z : public X<Y> {}; };",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template<template<class T> class X> class A { "
+ " class Z : public X<int> {}; };", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<template<class T> class X> class A { "
+ " public: class Z : public X<int> {}; }; "
+ "template<class T> class X {}; void y() { A<X>::Z z; }",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template<class X> class A { class Z : public X::D {}; };",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<class X> class A { public: "
+ " class Z : public X::D {}; }; "
+ "class Y { public: class X {}; typedef X D; }; "
+ "void y() { A<Y>::Z z; }", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class X {}; typedef X Y; class Z : public Y {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<class T> class Y { typedef typename T::U X; "
+ " class Z : public X {}; };", ZIsDerivedFromX));
+ EXPECT_TRUE(matches("class X {}; class Z : public ::X {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template<class T> class X {}; "
+ "template<class T> class A { class Z : public X<T>::D {}; };",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<class T> class X { public: typedef X<T> D; }; "
+ "template<class T> class A { public: "
+ " class Z : public X<T>::D {}; }; void y() { A<int>::Z z; }",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template<class X> class A { class Z : public X::D::E {}; };",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class X {}; typedef X V; typedef V W; class Z : public W {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class X {}; class Y : public X {}; "
+ "typedef Y V; typedef V W; class Z : public W {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template<class T, class U> class X {}; "
+ "template<class T> class A { class Z : public X<T, int> {}; };",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template<class X> class D { typedef X A; typedef A B; "
+ " typedef B C; class Z : public C {}; };",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class X {}; typedef X A; typedef A B; "
+ "class Z : public B {};", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class X {}; typedef X A; typedef A B; typedef B C; "
+ "class Z : public C {};", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class U {}; typedef U X; typedef X V; "
+ "class Z : public V {};", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class Base {}; typedef Base X; "
+ "class Z : public Base {};", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class Base {}; typedef Base Base2; typedef Base2 X; "
+ "class Z : public Base {};", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("class Base {}; class Base2 {}; typedef Base2 X; "
+ "class Z : public Base {};", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ matches("class A {}; typedef A X; typedef A Y; "
+ "class Z : public Y {};", ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template <typename T> class Z;"
+ "template <> class Z<void> {};"
+ "template <typename T> class Z : public Z<void> {};",
+ IsDerivedFromX));
+ EXPECT_TRUE(
+ matches("template <typename T> class X;"
+ "template <> class X<void> {};"
+ "template <typename T> class X : public X<void> {};",
+ IsDerivedFromX));
+ EXPECT_TRUE(matches(
+ "class X {};"
+ "template <typename T> class Z;"
+ "template <> class Z<void> {};"
+ "template <typename T> class Z : public Z<void>, public X {};",
+ ZIsDerivedFromX));
+ EXPECT_TRUE(
+ notMatches("template<int> struct X;"
+ "template<int i> struct X : public X<i-1> {};",
+ cxxRecordDecl(isDerivedFrom(recordDecl(hasName("Some"))))));
+ EXPECT_TRUE(matches(
+ "struct A {};"
+ "template<int> struct X;"
+ "template<int i> struct X : public X<i-1> {};"
+ "template<> struct X<0> : public A {};"
+ "struct B : public X<42> {};",
+ cxxRecordDecl(hasName("B"), isDerivedFrom(recordDecl(hasName("A"))))));
+
+ // FIXME: Once we have better matchers for template type matching,
+ // get rid of the Variable(...) matching and match the right template
+ // declarations directly.
+ const char *RecursiveTemplateOneParameter =
+ "class Base1 {}; class Base2 {};"
+ "template <typename T> class Z;"
+ "template <> class Z<void> : public Base1 {};"
+ "template <> class Z<int> : public Base2 {};"
+ "template <> class Z<float> : public Z<void> {};"
+ "template <> class Z<double> : public Z<int> {};"
+ "template <typename T> class Z : public Z<float>, public Z<double> {};"
+ "void f() { Z<float> z_float; Z<double> z_double; Z<char> z_char; }";
+ EXPECT_TRUE(matches(
+ RecursiveTemplateOneParameter,
+ varDecl(hasName("z_float"),
+ hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1")))))));
+ EXPECT_TRUE(notMatches(
+ RecursiveTemplateOneParameter,
+ varDecl(hasName("z_float"),
+ hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2")))))));
+ EXPECT_TRUE(matches(
+ RecursiveTemplateOneParameter,
+ varDecl(hasName("z_char"),
+ hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"),
+ isDerivedFrom("Base2")))))));
+
+ const char *RecursiveTemplateTwoParameters =
+ "class Base1 {}; class Base2 {};"
+ "template <typename T1, typename T2> class Z;"
+ "template <typename T> class Z<void, T> : public Base1 {};"
+ "template <typename T> class Z<int, T> : public Base2 {};"
+ "template <typename T> class Z<float, T> : public Z<void, T> {};"
+ "template <typename T> class Z<double, T> : public Z<int, T> {};"
+ "template <typename T1, typename T2> class Z : "
+ " public Z<float, T2>, public Z<double, T2> {};"
+ "void f() { Z<float, void> z_float; Z<double, void> z_double; "
+ " Z<char, void> z_char; }";
+ EXPECT_TRUE(matches(
+ RecursiveTemplateTwoParameters,
+ varDecl(hasName("z_float"),
+ hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1")))))));
+ EXPECT_TRUE(notMatches(
+ RecursiveTemplateTwoParameters,
+ varDecl(hasName("z_float"),
+ hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base2")))))));
+ EXPECT_TRUE(matches(
+ RecursiveTemplateTwoParameters,
+ varDecl(hasName("z_char"),
+ hasInitializer(hasType(cxxRecordDecl(isDerivedFrom("Base1"),
+ isDerivedFrom("Base2")))))));
+ EXPECT_TRUE(matches(
+ "namespace ns { class X {}; class Y : public X {}; }",
+ cxxRecordDecl(isDerivedFrom("::ns::X"))));
+ EXPECT_TRUE(notMatches(
+ "class X {}; class Y : public X {};",
+ cxxRecordDecl(isDerivedFrom("::ns::X"))));
+
+ EXPECT_TRUE(matches(
+ "class X {}; class Y : public X {};",
+ cxxRecordDecl(isDerivedFrom(recordDecl(hasName("X")).bind("test")))));
+
+ EXPECT_TRUE(matches(
+ "template<typename T> class X {};"
+ "template<typename T> using Z = X<T>;"
+ "template <typename T> class Y : Z<T> {};",
+ cxxRecordDecl(isDerivedFrom(namedDecl(hasName("X"))))));
+}
+
+TEST(Matcher, BindMatchedNodes) {
+ DeclarationMatcher ClassX = has(recordDecl(hasName("::X")).bind("x"));
+
+ EXPECT_TRUE(matchAndVerifyResultTrue("class X {};",
+ ClassX, llvm::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("x")));
+
+ EXPECT_TRUE(matchAndVerifyResultFalse("class X {};",
+ ClassX, llvm::make_unique<VerifyIdIsBoundTo<CXXRecordDecl>>("other-id")));
+
+ TypeMatcher TypeAHasClassB = hasDeclaration(
+ recordDecl(hasName("A"), has(recordDecl(hasName("B")).bind("b"))));
+
+ EXPECT_TRUE(matchAndVerifyResultTrue("class A { public: A *a; class B {}; };",
+ TypeAHasClassB,
+ llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
+
+ StatementMatcher MethodX =
+ callExpr(callee(cxxMethodDecl(hasName("x")))).bind("x");
+
+ EXPECT_TRUE(matchAndVerifyResultTrue("class A { void x() { x(); } };",
+ MethodX,
+ llvm::make_unique<VerifyIdIsBoundTo<CXXMemberCallExpr>>("x")));
+}
+
+TEST(Matcher, BindTheSameNameInAlternatives) {
+ StatementMatcher matcher = anyOf(
+ binaryOperator(hasOperatorName("+"),
+ hasLHS(expr().bind("x")),
+ hasRHS(integerLiteral(equals(0)))),
+ binaryOperator(hasOperatorName("+"),
+ hasLHS(integerLiteral(equals(0))),
+ hasRHS(expr().bind("x"))));
+
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ // The first branch of the matcher binds x to 0 but then fails.
+ // The second branch binds x to f() and succeeds.
+ "int f() { return 0 + f(); }",
+ matcher,
+ llvm::make_unique<VerifyIdIsBoundTo<CallExpr>>("x")));
+}
+
+TEST(Matcher, BindsIDForMemoizedResults) {
+ // Using the same matcher in two match expressions will make memoization
+ // kick in.
+ DeclarationMatcher ClassX = recordDecl(hasName("X")).bind("x");
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "class A { class B { class X {}; }; };",
+ DeclarationMatcher(anyOf(
+ recordDecl(hasName("A"), hasDescendant(ClassX)),
+ recordDecl(hasName("B"), hasDescendant(ClassX)))),
+ llvm::make_unique<VerifyIdIsBoundTo<Decl>>("x", 2)));
+}
+
+TEST(HasType, MatchesAsString) {
+ EXPECT_TRUE(
+ matches("class Y { public: void x(); }; void z() {Y* y; y->x(); }",
+ cxxMemberCallExpr(on(hasType(asString("class Y *"))))));
+ EXPECT_TRUE(
+ matches("class X { void x(int x) {} };",
+ cxxMethodDecl(hasParameter(0, hasType(asString("int"))))));
+ EXPECT_TRUE(matches("namespace ns { struct A {}; } struct B { ns::A a; };",
+ fieldDecl(hasType(asString("ns::A")))));
+ EXPECT_TRUE(matches("namespace { struct A {}; } struct B { A a; };",
+ fieldDecl(hasType(asString("struct (anonymous namespace)::A")))));
+}
+
+TEST(Matcher, HasOperatorNameForOverloadedOperatorCall) {
+ StatementMatcher OpCallAndAnd =
+ cxxOperatorCallExpr(hasOverloadedOperatorName("&&"));
+ EXPECT_TRUE(matches("class Y { }; "
+ "bool operator&&(Y x, Y y) { return true; }; "
+ "Y a; Y b; bool c = a && b;", OpCallAndAnd));
+ StatementMatcher OpCallLessLess =
+ cxxOperatorCallExpr(hasOverloadedOperatorName("<<"));
+ EXPECT_TRUE(notMatches("class Y { }; "
+ "bool operator&&(Y x, Y y) { return true; }; "
+ "Y a; Y b; bool c = a && b;",
+ OpCallLessLess));
+ StatementMatcher OpStarCall =
+ cxxOperatorCallExpr(hasOverloadedOperatorName("*"));
+ EXPECT_TRUE(matches("class Y; int operator*(Y &); void f(Y &y) { *y; }",
+ OpStarCall));
+ DeclarationMatcher ClassWithOpStar =
+ cxxRecordDecl(hasMethod(hasOverloadedOperatorName("*")));
+ EXPECT_TRUE(matches("class Y { int operator*(); };",
+ ClassWithOpStar));
+ EXPECT_TRUE(notMatches("class Y { void myOperator(); };",
+ ClassWithOpStar)) ;
+ DeclarationMatcher AnyOpStar = functionDecl(hasOverloadedOperatorName("*"));
+ EXPECT_TRUE(matches("class Y; int operator*(Y &);", AnyOpStar));
+ EXPECT_TRUE(matches("class Y { int operator*(); };", AnyOpStar));
+}
+
+
+TEST(Matcher, NestedOverloadedOperatorCalls) {
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "class Y { }; "
+ "Y& operator&&(Y& x, Y& y) { return x; }; "
+ "Y a; Y b; Y c; Y d = a && b && c;",
+ cxxOperatorCallExpr(hasOverloadedOperatorName("&&")).bind("x"),
+ llvm::make_unique<VerifyIdIsBoundTo<CXXOperatorCallExpr>>("x", 2)));
+ EXPECT_TRUE(matches("class Y { }; "
+ "Y& operator&&(Y& x, Y& y) { return x; }; "
+ "Y a; Y b; Y c; Y d = a && b && c;",
+ cxxOperatorCallExpr(hasParent(cxxOperatorCallExpr()))));
+ EXPECT_TRUE(
+ matches("class Y { }; "
+ "Y& operator&&(Y& x, Y& y) { return x; }; "
+ "Y a; Y b; Y c; Y d = a && b && c;",
+ cxxOperatorCallExpr(hasDescendant(cxxOperatorCallExpr()))));
+}
+
+TEST(Matcher, VarDecl_Storage) {
+ auto M = varDecl(hasName("X"), hasLocalStorage());
+ EXPECT_TRUE(matches("void f() { int X; }", M));
+ EXPECT_TRUE(notMatches("int X;", M));
+ EXPECT_TRUE(notMatches("void f() { static int X; }", M));
+
+ M = varDecl(hasName("X"), hasGlobalStorage());
+ EXPECT_TRUE(notMatches("void f() { int X; }", M));
+ EXPECT_TRUE(matches("int X;", M));
+ EXPECT_TRUE(matches("void f() { static int X; }", M));
+}
+
+TEST(Matcher, VarDecl_StorageDuration) {
+ std::string T =
+ "void f() { int x; static int y; } int a;";
+
+ EXPECT_TRUE(matches(T, varDecl(hasName("x"), hasAutomaticStorageDuration())));
+ EXPECT_TRUE(
+ notMatches(T, varDecl(hasName("y"), hasAutomaticStorageDuration())));
+ EXPECT_TRUE(
+ notMatches(T, varDecl(hasName("a"), hasAutomaticStorageDuration())));
+
+ EXPECT_TRUE(matches(T, varDecl(hasName("y"), hasStaticStorageDuration())));
+ EXPECT_TRUE(matches(T, varDecl(hasName("a"), hasStaticStorageDuration())));
+ EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasStaticStorageDuration())));
+
+ // FIXME: It is really hard to test with thread_local itself because not all
+ // targets support TLS, which causes this to be an error depending on what
+ // platform the test is being run on. We do not have access to the TargetInfo
+ // object to be able to test whether the platform supports TLS or not.
+ EXPECT_TRUE(notMatches(T, varDecl(hasName("x"), hasThreadStorageDuration())));
+ EXPECT_TRUE(notMatches(T, varDecl(hasName("y"), hasThreadStorageDuration())));
+ EXPECT_TRUE(notMatches(T, varDecl(hasName("a"), hasThreadStorageDuration())));
+}
+
+TEST(Matcher, FindsVarDeclInFunctionParameter) {
+ EXPECT_TRUE(matches(
+ "void f(int i) {}",
+ varDecl(hasName("i"))));
+}
+
+TEST(UnaryExpressionOrTypeTraitExpression, MatchesCorrectType) {
+ EXPECT_TRUE(matches("void x() { int a = sizeof(a); }", sizeOfExpr(
+ hasArgumentOfType(asString("int")))));
+ EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", sizeOfExpr(
+ hasArgumentOfType(asString("float")))));
+ EXPECT_TRUE(matches(
+ "struct A {}; void x() { A a; int b = sizeof(a); }",
+ sizeOfExpr(hasArgumentOfType(hasDeclaration(recordDecl(hasName("A")))))));
+ EXPECT_TRUE(notMatches("void x() { int a = sizeof(a); }", sizeOfExpr(
+ hasArgumentOfType(hasDeclaration(recordDecl(hasName("string")))))));
+}
+
+TEST(IsInteger, MatchesIntegers) {
+ EXPECT_TRUE(matches("int i = 0;", varDecl(hasType(isInteger()))));
+ EXPECT_TRUE(matches(
+ "long long i = 0; void f(long long) { }; void g() {f(i);}",
+ callExpr(hasArgument(0, declRefExpr(
+ to(varDecl(hasType(isInteger()))))))));
+}
+
+TEST(IsInteger, ReportsNoFalsePositives) {
+ EXPECT_TRUE(notMatches("int *i;", varDecl(hasType(isInteger()))));
+ EXPECT_TRUE(notMatches("struct T {}; T t; void f(T *) { }; void g() {f(&t);}",
+ callExpr(hasArgument(0, declRefExpr(
+ to(varDecl(hasType(isInteger()))))))));
+}
+
+TEST(IsAnyPointer, MatchesPointers) {
+ EXPECT_TRUE(matches("int* i = nullptr;", varDecl(hasType(isAnyPointer()))));
+}
+
+TEST(IsAnyPointer, MatchesObjcPointer) {
+ EXPECT_TRUE(matchesObjC("@interface Foo @end Foo *f;",
+ varDecl(hasType(isAnyPointer()))));
+}
+
+TEST(IsAnyPointer, ReportsNoFalsePositives) {
+ EXPECT_TRUE(notMatches("int i = 0;", varDecl(hasType(isAnyPointer()))));
+}
+
+TEST(IsAnyCharacter, MatchesCharacters) {
+ EXPECT_TRUE(matches("char i = 0;", varDecl(hasType(isAnyCharacter()))));
+}
+
+TEST(IsAnyCharacter, ReportsNoFalsePositives) {
+ EXPECT_TRUE(notMatches("int i;", varDecl(hasType(isAnyCharacter()))));
+}
+
+TEST(IsArrow, MatchesMemberVariablesViaArrow) {
+ EXPECT_TRUE(matches("class Y { void x() { this->y; } int y; };",
+ memberExpr(isArrow())));
+ EXPECT_TRUE(matches("class Y { void x() { y; } int y; };",
+ memberExpr(isArrow())));
+ EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } int y; };",
+ memberExpr(isArrow())));
+}
+
+TEST(IsArrow, MatchesStaticMemberVariablesViaArrow) {
+ EXPECT_TRUE(matches("class Y { void x() { this->y; } static int y; };",
+ memberExpr(isArrow())));
+ EXPECT_TRUE(notMatches("class Y { void x() { y; } static int y; };",
+ memberExpr(isArrow())));
+ EXPECT_TRUE(notMatches("class Y { void x() { (*this).y; } static int y; };",
+ memberExpr(isArrow())));
+}
+
+TEST(IsArrow, MatchesMemberCallsViaArrow) {
+ EXPECT_TRUE(matches("class Y { void x() { this->x(); } };",
+ memberExpr(isArrow())));
+ EXPECT_TRUE(matches("class Y { void x() { x(); } };",
+ memberExpr(isArrow())));
+ EXPECT_TRUE(notMatches("class Y { void x() { Y y; y.x(); } };",
+ memberExpr(isArrow())));
+}
+
+TEST(ConversionDeclaration, IsExplicit) {
+ EXPECT_TRUE(matches("struct S { explicit operator int(); };",
+ cxxConversionDecl(isExplicit())));
+ EXPECT_TRUE(notMatches("struct S { operator int(); };",
+ cxxConversionDecl(isExplicit())));
+}
+
+TEST(Matcher, ArgumentCount) {
+ StatementMatcher Call1Arg = callExpr(argumentCountIs(1));
+
+ EXPECT_TRUE(matches("void x(int) { x(0); }", Call1Arg));
+ EXPECT_TRUE(matches("class X { void x(int) { x(0); } };", Call1Arg));
+ EXPECT_TRUE(notMatches("void x(int, int) { x(0, 0); }", Call1Arg));
+}
+
+TEST(Matcher, ParameterCount) {
+ DeclarationMatcher Function1Arg = functionDecl(parameterCountIs(1));
+ EXPECT_TRUE(matches("void f(int i) {}", Function1Arg));
+ EXPECT_TRUE(matches("class X { void f(int i) {} };", Function1Arg));
+ EXPECT_TRUE(notMatches("void f() {}", Function1Arg));
+ EXPECT_TRUE(notMatches("void f(int i, int j, int k) {}", Function1Arg));
+ EXPECT_TRUE(matches("void f(int i, ...) {};", Function1Arg));
+}
+
+TEST(Matcher, References) {
+ DeclarationMatcher ReferenceClassX = varDecl(
+ hasType(references(recordDecl(hasName("X")))));
+ EXPECT_TRUE(matches("class X {}; void y(X y) { X &x = y; }",
+ ReferenceClassX));
+ EXPECT_TRUE(
+ matches("class X {}; void y(X y) { const X &x = y; }", ReferenceClassX));
+ // The match here is on the implicit copy constructor code for
+ // class X, not on code 'X x = y'.
+ EXPECT_TRUE(
+ matches("class X {}; void y(X y) { X x = y; }", ReferenceClassX));
+ EXPECT_TRUE(
+ notMatches("class X {}; extern X x;", ReferenceClassX));
+ EXPECT_TRUE(
+ notMatches("class X {}; void y(X *y) { X *&x = y; }", ReferenceClassX));
+}
+
+TEST(QualType, hasLocalQualifiers) {
+ EXPECT_TRUE(notMatches("typedef const int const_int; const_int i = 1;",
+ varDecl(hasType(hasLocalQualifiers()))));
+ EXPECT_TRUE(matches("int *const j = nullptr;",
+ varDecl(hasType(hasLocalQualifiers()))));
+ EXPECT_TRUE(matches("int *volatile k;",
+ varDecl(hasType(hasLocalQualifiers()))));
+ EXPECT_TRUE(notMatches("int m;",
+ varDecl(hasType(hasLocalQualifiers()))));
+}
+
+TEST(IsExternC, MatchesExternCFunctionDeclarations) {
+ EXPECT_TRUE(matches("extern \"C\" void f() {}", functionDecl(isExternC())));
+ EXPECT_TRUE(matches("extern \"C\" { void f() {} }",
+ functionDecl(isExternC())));
+ EXPECT_TRUE(notMatches("void f() {}", functionDecl(isExternC())));
+}
+
+TEST(IsDefaulted, MatchesDefaultedFunctionDeclarations) {
+ EXPECT_TRUE(notMatches("class A { ~A(); };",
+ functionDecl(hasName("~A"), isDefaulted())));
+ EXPECT_TRUE(matches("class B { ~B() = default; };",
+ functionDecl(hasName("~B"), isDefaulted())));
+}
+
+TEST(IsDeleted, MatchesDeletedFunctionDeclarations) {
+ EXPECT_TRUE(
+ notMatches("void Func();", functionDecl(hasName("Func"), isDeleted())));
+ EXPECT_TRUE(matches("void Func() = delete;",
+ functionDecl(hasName("Func"), isDeleted())));
+}
+
+TEST(IsNoThrow, MatchesNoThrowFunctionDeclarations) {
+ EXPECT_TRUE(notMatches("void f();", functionDecl(isNoThrow())));
+ EXPECT_TRUE(notMatches("void f() throw(int);", functionDecl(isNoThrow())));
+ EXPECT_TRUE(
+ notMatches("void f() noexcept(false);", functionDecl(isNoThrow())));
+ EXPECT_TRUE(matches("void f() throw();", functionDecl(isNoThrow())));
+ EXPECT_TRUE(matches("void f() noexcept;", functionDecl(isNoThrow())));
+}
+
+TEST(isConstexpr, MatchesConstexprDeclarations) {
+ EXPECT_TRUE(matches("constexpr int foo = 42;",
+ varDecl(hasName("foo"), isConstexpr())));
+ EXPECT_TRUE(matches("constexpr int bar();",
+ functionDecl(hasName("bar"), isConstexpr())));
+}
+
+TEST(TemplateArgumentCountIs, Matches) {
+ EXPECT_TRUE(
+ matches("template<typename T> struct C {}; C<int> c;",
+ classTemplateSpecializationDecl(templateArgumentCountIs(1))));
+ EXPECT_TRUE(
+ notMatches("template<typename T> struct C {}; C<int> c;",
+ classTemplateSpecializationDecl(templateArgumentCountIs(2))));
+
+ EXPECT_TRUE(matches("template<typename T> struct C {}; C<int> c;",
+ templateSpecializationType(templateArgumentCountIs(1))));
+ EXPECT_TRUE(
+ notMatches("template<typename T> struct C {}; C<int> c;",
+ templateSpecializationType(templateArgumentCountIs(2))));
+}
+
+TEST(IsIntegral, Matches) {
+ EXPECT_TRUE(matches("template<int T> struct C {}; C<42> c;",
+ classTemplateSpecializationDecl(
+ hasAnyTemplateArgument(isIntegral()))));
+ EXPECT_TRUE(notMatches("template<typename T> struct C {}; C<int> c;",
+ classTemplateSpecializationDecl(hasAnyTemplateArgument(
+ templateArgument(isIntegral())))));
+}
+
+TEST(EqualsIntegralValue, Matches) {
+ EXPECT_TRUE(matches("template<int T> struct C {}; C<42> c;",
+ classTemplateSpecializationDecl(
+ hasAnyTemplateArgument(equalsIntegralValue("42")))));
+ EXPECT_TRUE(matches("template<int T> struct C {}; C<-42> c;",
+ classTemplateSpecializationDecl(
+ hasAnyTemplateArgument(equalsIntegralValue("-42")))));
+ EXPECT_TRUE(matches("template<int T> struct C {}; C<-0042> c;",
+ classTemplateSpecializationDecl(
+ hasAnyTemplateArgument(equalsIntegralValue("-34")))));
+ EXPECT_TRUE(notMatches("template<int T> struct C {}; C<42> c;",
+ classTemplateSpecializationDecl(hasAnyTemplateArgument(
+ equalsIntegralValue("0042")))));
+}
+
+TEST(Matcher, MatchesAccessSpecDecls) {
+ EXPECT_TRUE(matches("class C { public: int i; };", accessSpecDecl()));
+ EXPECT_TRUE(
+ matches("class C { public: int i; };", accessSpecDecl(isPublic())));
+ EXPECT_TRUE(
+ notMatches("class C { public: int i; };", accessSpecDecl(isProtected())));
+ EXPECT_TRUE(
+ notMatches("class C { public: int i; };", accessSpecDecl(isPrivate())));
+
+ EXPECT_TRUE(notMatches("class C { int i; };", accessSpecDecl()));
+}
+
+TEST(Matcher, MatchesFinal) {
+ EXPECT_TRUE(matches("class X final {};", cxxRecordDecl(isFinal())));
+ EXPECT_TRUE(matches("class X { virtual void f() final; };",
+ cxxMethodDecl(isFinal())));
+ EXPECT_TRUE(notMatches("class X {};", cxxRecordDecl(isFinal())));
+ EXPECT_TRUE(
+ notMatches("class X { virtual void f(); };", cxxMethodDecl(isFinal())));
+}
+
+TEST(Matcher, MatchesVirtualMethod) {
+ EXPECT_TRUE(matches("class X { virtual int f(); };",
+ cxxMethodDecl(isVirtual(), hasName("::X::f"))));
+ EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isVirtual())));
+}
+
+TEST(Matcher, MatchesVirtualAsWrittenMethod) {
+ EXPECT_TRUE(matches("class A { virtual int f(); };"
+ "class B : public A { int f(); };",
+ cxxMethodDecl(isVirtualAsWritten(), hasName("::A::f"))));
+ EXPECT_TRUE(
+ notMatches("class A { virtual int f(); };"
+ "class B : public A { int f(); };",
+ cxxMethodDecl(isVirtualAsWritten(), hasName("::B::f"))));
+}
+
+TEST(Matcher, MatchesPureMethod) {
+ EXPECT_TRUE(matches("class X { virtual int f() = 0; };",
+ cxxMethodDecl(isPure(), hasName("::X::f"))));
+ EXPECT_TRUE(notMatches("class X { int f(); };", cxxMethodDecl(isPure())));
+}
+
+TEST(Matcher, MatchesCopyAssignmentOperator) {
+ EXPECT_TRUE(matches("class X { X &operator=(X); };",
+ cxxMethodDecl(isCopyAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(X &); };",
+ cxxMethodDecl(isCopyAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(const X &); };",
+ cxxMethodDecl(isCopyAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(volatile X &); };",
+ cxxMethodDecl(isCopyAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(const volatile X &); };",
+ cxxMethodDecl(isCopyAssignmentOperator())));
+ EXPECT_TRUE(notMatches("class X { X &operator=(X &&); };",
+ cxxMethodDecl(isCopyAssignmentOperator())));
+}
+
+TEST(Matcher, MatchesMoveAssignmentOperator) {
+ EXPECT_TRUE(notMatches("class X { X &operator=(X); };",
+ cxxMethodDecl(isMoveAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(X &&); };",
+ cxxMethodDecl(isMoveAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(const X &&); };",
+ cxxMethodDecl(isMoveAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(volatile X &&); };",
+ cxxMethodDecl(isMoveAssignmentOperator())));
+ EXPECT_TRUE(matches("class X { X &operator=(const volatile X &&); };",
+ cxxMethodDecl(isMoveAssignmentOperator())));
+ EXPECT_TRUE(notMatches("class X { X &operator=(X &); };",
+ cxxMethodDecl(isMoveAssignmentOperator())));
+}
+
+TEST(Matcher, MatchesConstMethod) {
+ EXPECT_TRUE(
+ matches("struct A { void foo() const; };", cxxMethodDecl(isConst())));
+ EXPECT_TRUE(
+ notMatches("struct A { void foo(); };", cxxMethodDecl(isConst())));
+}
+
+TEST(Matcher, MatchesOverridingMethod) {
+ EXPECT_TRUE(matches("class X { virtual int f(); }; "
+ "class Y : public X { int f(); };",
+ cxxMethodDecl(isOverride(), hasName("::Y::f"))));
+ EXPECT_TRUE(notMatches("class X { virtual int f(); }; "
+ "class Y : public X { int f(); };",
+ cxxMethodDecl(isOverride(), hasName("::X::f"))));
+ EXPECT_TRUE(notMatches("class X { int f(); }; "
+ "class Y : public X { int f(); };",
+ cxxMethodDecl(isOverride())));
+ EXPECT_TRUE(notMatches("class X { int f(); int f(int); }; ",
+ cxxMethodDecl(isOverride())));
+ EXPECT_TRUE(
+ matches("template <typename Base> struct Y : Base { void f() override;};",
+ cxxMethodDecl(isOverride(), hasName("::Y::f"))));
+}
+
+TEST(Matcher, ConstructorArgument) {
+ StatementMatcher Constructor = cxxConstructExpr(
+ hasArgument(0, declRefExpr(to(varDecl(hasName("y"))))));
+
+ EXPECT_TRUE(
+ matches("class X { public: X(int); }; void x() { int y; X x(y); }",
+ Constructor));
+ EXPECT_TRUE(
+ matches("class X { public: X(int); }; void x() { int y; X x = X(y); }",
+ Constructor));
+ EXPECT_TRUE(
+ matches("class X { public: X(int); }; void x() { int y; X x = y; }",
+ Constructor));
+ EXPECT_TRUE(
+ notMatches("class X { public: X(int); }; void x() { int z; X x(z); }",
+ Constructor));
+
+ StatementMatcher WrongIndex = cxxConstructExpr(
+ hasArgument(42, declRefExpr(to(varDecl(hasName("y"))))));
+ EXPECT_TRUE(
+ notMatches("class X { public: X(int); }; void x() { int y; X x(y); }",
+ WrongIndex));
+}
+
+TEST(Matcher, ConstructorArgumentCount) {
+ StatementMatcher Constructor1Arg = cxxConstructExpr(argumentCountIs(1));
+
+ EXPECT_TRUE(
+ matches("class X { public: X(int); }; void x() { X x(0); }",
+ Constructor1Arg));
+ EXPECT_TRUE(
+ matches("class X { public: X(int); }; void x() { X x = X(0); }",
+ Constructor1Arg));
+ EXPECT_TRUE(
+ matches("class X { public: X(int); }; void x() { X x = 0; }",
+ Constructor1Arg));
+ EXPECT_TRUE(
+ notMatches("class X { public: X(int, int); }; void x() { X x(0, 0); }",
+ Constructor1Arg));
+}
+
+TEST(Matcher, ConstructorListInitialization) {
+ StatementMatcher ConstructorListInit =
+ cxxConstructExpr(isListInitialization());
+
+ EXPECT_TRUE(
+ matches("class X { public: X(int); }; void x() { X x{0}; }",
+ ConstructorListInit));
+ EXPECT_FALSE(
+ matches("class X { public: X(int); }; void x() { X x(0); }",
+ ConstructorListInit));
+}
+
+TEST(ConstructorDeclaration, IsImplicit) {
+ // This one doesn't match because the constructor is not added by the
+ // compiler (it is not needed).
+ EXPECT_TRUE(notMatches("class Foo { };",
+ cxxConstructorDecl(isImplicit())));
+ // The compiler added the implicit default constructor.
+ EXPECT_TRUE(matches("class Foo { }; Foo* f = new Foo();",
+ cxxConstructorDecl(isImplicit())));
+ EXPECT_TRUE(matches("class Foo { Foo(){} };",
+ cxxConstructorDecl(unless(isImplicit()))));
+ // The compiler added an implicit assignment operator.
+ EXPECT_TRUE(matches("struct A { int x; } a = {0}, b = a; void f() { a = b; }",
+ cxxMethodDecl(isImplicit(), hasName("operator="))));
+}
+
+TEST(ConstructorDeclaration, IsExplicit) {
+ EXPECT_TRUE(matches("struct S { explicit S(int); };",
+ cxxConstructorDecl(isExplicit())));
+ EXPECT_TRUE(notMatches("struct S { S(int); };",
+ cxxConstructorDecl(isExplicit())));
+}
+
+TEST(ConstructorDeclaration, Kinds) {
+ EXPECT_TRUE(matches("struct S { S(); };",
+ cxxConstructorDecl(isDefaultConstructor())));
+ EXPECT_TRUE(notMatches("struct S { S(); };",
+ cxxConstructorDecl(isCopyConstructor())));
+ EXPECT_TRUE(notMatches("struct S { S(); };",
+ cxxConstructorDecl(isMoveConstructor())));
+
+ EXPECT_TRUE(notMatches("struct S { S(const S&); };",
+ cxxConstructorDecl(isDefaultConstructor())));
+ EXPECT_TRUE(matches("struct S { S(const S&); };",
+ cxxConstructorDecl(isCopyConstructor())));
+ EXPECT_TRUE(notMatches("struct S { S(const S&); };",
+ cxxConstructorDecl(isMoveConstructor())));
+
+ EXPECT_TRUE(notMatches("struct S { S(S&&); };",
+ cxxConstructorDecl(isDefaultConstructor())));
+ EXPECT_TRUE(notMatches("struct S { S(S&&); };",
+ cxxConstructorDecl(isCopyConstructor())));
+ EXPECT_TRUE(matches("struct S { S(S&&); };",
+ cxxConstructorDecl(isMoveConstructor())));
+}
+
+TEST(ConstructorDeclaration, IsUserProvided) {
+ EXPECT_TRUE(notMatches("struct S { int X = 0; };",
+ cxxConstructorDecl(isUserProvided())));
+ EXPECT_TRUE(notMatches("struct S { S() = default; };",
+ cxxConstructorDecl(isUserProvided())));
+ EXPECT_TRUE(notMatches("struct S { S() = delete; };",
+ cxxConstructorDecl(isUserProvided())));
+ EXPECT_TRUE(
+ matches("struct S { S(); };", cxxConstructorDecl(isUserProvided())));
+ EXPECT_TRUE(matches("struct S { S(); }; S::S(){}",
+ cxxConstructorDecl(isUserProvided())));
+}
+
+TEST(ConstructorDeclaration, IsDelegatingConstructor) {
+ EXPECT_TRUE(notMatches("struct S { S(); S(int); int X; };",
+ cxxConstructorDecl(isDelegatingConstructor())));
+ EXPECT_TRUE(notMatches("struct S { S(){} S(int X) : X(X) {} int X; };",
+ cxxConstructorDecl(isDelegatingConstructor())));
+ EXPECT_TRUE(matches(
+ "struct S { S() : S(0) {} S(int X) : X(X) {} int X; };",
+ cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(0))));
+ EXPECT_TRUE(matches(
+ "struct S { S(); S(int X); int X; }; S::S(int X) : S() {}",
+ cxxConstructorDecl(isDelegatingConstructor(), parameterCountIs(1))));
+}
+
+TEST(StringLiteral, HasSize) {
+ StatementMatcher Literal = stringLiteral(hasSize(4));
+ EXPECT_TRUE(matches("const char *s = \"abcd\";", Literal));
+ // wide string
+ EXPECT_TRUE(matches("const wchar_t *s = L\"abcd\";", Literal));
+ // with escaped characters
+ EXPECT_TRUE(matches("const char *s = \"\x05\x06\x07\x08\";", Literal));
+ // no matching, too small
+ EXPECT_TRUE(notMatches("const char *s = \"ab\";", Literal));
+}
+
+TEST(Matcher, HasNameSupportsNamespaces) {
+ EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("a::b::C"))));
+ EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("::a::b::C"))));
+ EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("b::C"))));
+ EXPECT_TRUE(matches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("C"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("c::b::C"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("a::c::C"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("a::b::A"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("::C"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("::b::C"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("z::a::b::C"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class C; } }",
+ recordDecl(hasName("a+b::C"))));
+ EXPECT_TRUE(notMatches("namespace a { namespace b { class AC; } }",
+ recordDecl(hasName("C"))));
+}
+
+TEST(Matcher, HasNameSupportsOuterClasses) {
+ EXPECT_TRUE(
+ matches("class A { class B { class C; }; };",
+ recordDecl(hasName("A::B::C"))));
+ EXPECT_TRUE(
+ matches("class A { class B { class C; }; };",
+ recordDecl(hasName("::A::B::C"))));
+ EXPECT_TRUE(
+ matches("class A { class B { class C; }; };",
+ recordDecl(hasName("B::C"))));
+ EXPECT_TRUE(
+ matches("class A { class B { class C; }; };",
+ recordDecl(hasName("C"))));
+ EXPECT_TRUE(
+ notMatches("class A { class B { class C; }; };",
+ recordDecl(hasName("c::B::C"))));
+ EXPECT_TRUE(
+ notMatches("class A { class B { class C; }; };",
+ recordDecl(hasName("A::c::C"))));
+ EXPECT_TRUE(
+ notMatches("class A { class B { class C; }; };",
+ recordDecl(hasName("A::B::A"))));
+ EXPECT_TRUE(
+ notMatches("class A { class B { class C; }; };",
+ recordDecl(hasName("::C"))));
+ EXPECT_TRUE(
+ notMatches("class A { class B { class C; }; };",
+ recordDecl(hasName("::B::C"))));
+ EXPECT_TRUE(notMatches("class A { class B { class C; }; };",
+ recordDecl(hasName("z::A::B::C"))));
+ EXPECT_TRUE(
+ notMatches("class A { class B { class C; }; };",
+ recordDecl(hasName("A+B::C"))));
+}
+
+TEST(Matcher, HasNameSupportsInlinedNamespaces) {
+ std::string code = "namespace a { inline namespace b { class C; } }";
+ EXPECT_TRUE(matches(code, recordDecl(hasName("a::b::C"))));
+ EXPECT_TRUE(matches(code, recordDecl(hasName("a::C"))));
+ EXPECT_TRUE(matches(code, recordDecl(hasName("::a::b::C"))));
+ EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C"))));
+}
+
+TEST(Matcher, HasNameSupportsAnonymousNamespaces) {
+ std::string code = "namespace a { namespace { class C; } }";
+ EXPECT_TRUE(
+ matches(code, recordDecl(hasName("a::(anonymous namespace)::C"))));
+ EXPECT_TRUE(matches(code, recordDecl(hasName("a::C"))));
+ EXPECT_TRUE(
+ matches(code, recordDecl(hasName("::a::(anonymous namespace)::C"))));
+ EXPECT_TRUE(matches(code, recordDecl(hasName("::a::C"))));
+}
+
+TEST(Matcher, HasNameSupportsAnonymousOuterClasses) {
+ EXPECT_TRUE(matches("class A { class { class C; } x; };",
+ recordDecl(hasName("A::(anonymous class)::C"))));
+ EXPECT_TRUE(matches("class A { class { class C; } x; };",
+ recordDecl(hasName("::A::(anonymous class)::C"))));
+ EXPECT_FALSE(matches("class A { class { class C; } x; };",
+ recordDecl(hasName("::A::C"))));
+ EXPECT_TRUE(matches("class A { struct { class C; } x; };",
+ recordDecl(hasName("A::(anonymous struct)::C"))));
+ EXPECT_TRUE(matches("class A { struct { class C; } x; };",
+ recordDecl(hasName("::A::(anonymous struct)::C"))));
+ EXPECT_FALSE(matches("class A { struct { class C; } x; };",
+ recordDecl(hasName("::A::C"))));
+}
+
+TEST(Matcher, HasNameSupportsFunctionScope) {
+ std::string code =
+ "namespace a { void F(int a) { struct S { int m; }; int i; } }";
+ EXPECT_TRUE(matches(code, varDecl(hasName("i"))));
+ EXPECT_FALSE(matches(code, varDecl(hasName("F()::i"))));
+
+ EXPECT_TRUE(matches(code, fieldDecl(hasName("m"))));
+ EXPECT_TRUE(matches(code, fieldDecl(hasName("S::m"))));
+ EXPECT_TRUE(matches(code, fieldDecl(hasName("F(int)::S::m"))));
+ EXPECT_TRUE(matches(code, fieldDecl(hasName("a::F(int)::S::m"))));
+ EXPECT_TRUE(matches(code, fieldDecl(hasName("::a::F(int)::S::m"))));
+}
+
+TEST(Matcher, HasAnyName) {
+ const std::string Code = "namespace a { namespace b { class C; } }";
+
+ EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "a::b::C"))));
+ EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("a::b::C", "XX"))));
+ EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX::C", "a::b::C"))));
+ EXPECT_TRUE(matches(Code, recordDecl(hasAnyName("XX", "C"))));
+
+ EXPECT_TRUE(notMatches(Code, recordDecl(hasAnyName("::C", "::b::C"))));
+ EXPECT_TRUE(
+ matches(Code, recordDecl(hasAnyName("::C", "::b::C", "::a::b::C"))));
+
+ std::vector<StringRef> Names = {"::C", "::b::C", "::a::b::C"};
+ EXPECT_TRUE(matches(Code, recordDecl(hasAnyName(Names))));
+}
+
+TEST(Matcher, IsDefinition) {
+ DeclarationMatcher DefinitionOfClassA =
+ recordDecl(hasName("A"), isDefinition());
+ EXPECT_TRUE(matches("class A {};", DefinitionOfClassA));
+ EXPECT_TRUE(notMatches("class A;", DefinitionOfClassA));
+
+ DeclarationMatcher DefinitionOfVariableA =
+ varDecl(hasName("a"), isDefinition());
+ EXPECT_TRUE(matches("int a;", DefinitionOfVariableA));
+ EXPECT_TRUE(notMatches("extern int a;", DefinitionOfVariableA));
+
+ DeclarationMatcher DefinitionOfMethodA =
+ cxxMethodDecl(hasName("a"), isDefinition());
+ EXPECT_TRUE(matches("class A { void a() {} };", DefinitionOfMethodA));
+ EXPECT_TRUE(notMatches("class A { void a(); };", DefinitionOfMethodA));
+}
+
+TEST(Matcher, HandlesNullQualTypes) {
+ // FIXME: Add a Type matcher so we can replace uses of this
+ // variable with Type(True())
+ const TypeMatcher AnyType = anything();
+
+ // We don't really care whether this matcher succeeds; we're testing that
+ // it completes without crashing.
+ EXPECT_TRUE(matches(
+ "struct A { };"
+ "template <typename T>"
+ "void f(T t) {"
+ " T local_t(t /* this becomes a null QualType in the AST */);"
+ "}"
+ "void g() {"
+ " f(0);"
+ "}",
+ expr(hasType(TypeMatcher(
+ anyOf(
+ TypeMatcher(hasDeclaration(anything())),
+ pointsTo(AnyType),
+ references(AnyType)
+ // Other QualType matchers should go here.
+ ))))));
+}
+
+
+TEST(StatementCountIs, FindsNoStatementsInAnEmptyCompoundStatement) {
+ EXPECT_TRUE(matches("void f() { }",
+ compoundStmt(statementCountIs(0))));
+ EXPECT_TRUE(notMatches("void f() {}",
+ compoundStmt(statementCountIs(1))));
+}
+
+TEST(StatementCountIs, AppearsToMatchOnlyOneCount) {
+ EXPECT_TRUE(matches("void f() { 1; }",
+ compoundStmt(statementCountIs(1))));
+ EXPECT_TRUE(notMatches("void f() { 1; }",
+ compoundStmt(statementCountIs(0))));
+ EXPECT_TRUE(notMatches("void f() { 1; }",
+ compoundStmt(statementCountIs(2))));
+}
+
+TEST(StatementCountIs, WorksWithMultipleStatements) {
+ EXPECT_TRUE(matches("void f() { 1; 2; 3; }",
+ compoundStmt(statementCountIs(3))));
+}
+
+TEST(StatementCountIs, WorksWithNestedCompoundStatements) {
+ EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }",
+ compoundStmt(statementCountIs(1))));
+ EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }",
+ compoundStmt(statementCountIs(2))));
+ EXPECT_TRUE(notMatches("void f() { { 1; } { 1; 2; 3; 4; } }",
+ compoundStmt(statementCountIs(3))));
+ EXPECT_TRUE(matches("void f() { { 1; } { 1; 2; 3; 4; } }",
+ compoundStmt(statementCountIs(4))));
+}
+
+TEST(Member, WorksInSimplestCase) {
+ EXPECT_TRUE(matches("struct { int first; } s; int i(s.first);",
+ memberExpr(member(hasName("first")))));
+}
+
+TEST(Member, DoesNotMatchTheBaseExpression) {
+ // Don't pick out the wrong part of the member expression, this should
+ // be checking the member (name) only.
+ EXPECT_TRUE(notMatches("struct { int i; } first; int i(first.i);",
+ memberExpr(member(hasName("first")))));
+}
+
+TEST(Member, MatchesInMemberFunctionCall) {
+ EXPECT_TRUE(matches("void f() {"
+ " struct { void first() {}; } s;"
+ " s.first();"
+ "};",
+ memberExpr(member(hasName("first")))));
+}
+
+TEST(Member, MatchesMember) {
+ EXPECT_TRUE(matches(
+ "struct A { int i; }; void f() { A a; a.i = 2; }",
+ memberExpr(hasDeclaration(fieldDecl(hasType(isInteger()))))));
+ EXPECT_TRUE(notMatches(
+ "struct A { float f; }; void f() { A a; a.f = 2.0f; }",
+ memberExpr(hasDeclaration(fieldDecl(hasType(isInteger()))))));
+}
+
+
+TEST(Member, UnderstandsAccess) {
+ EXPECT_TRUE(matches(
+ "struct A { int i; };", fieldDecl(isPublic(), hasName("i"))));
+ EXPECT_TRUE(notMatches(
+ "struct A { int i; };", fieldDecl(isProtected(), hasName("i"))));
+ EXPECT_TRUE(notMatches(
+ "struct A { int i; };", fieldDecl(isPrivate(), hasName("i"))));
+
+ EXPECT_TRUE(notMatches(
+ "class A { int i; };", fieldDecl(isPublic(), hasName("i"))));
+ EXPECT_TRUE(notMatches(
+ "class A { int i; };", fieldDecl(isProtected(), hasName("i"))));
+ EXPECT_TRUE(matches(
+ "class A { int i; };", fieldDecl(isPrivate(), hasName("i"))));
+
+ EXPECT_TRUE(notMatches(
+ "class A { protected: int i; };", fieldDecl(isPublic(), hasName("i"))));
+ EXPECT_TRUE(matches("class A { protected: int i; };",
+ fieldDecl(isProtected(), hasName("i"))));
+ EXPECT_TRUE(notMatches(
+ "class A { protected: int i; };", fieldDecl(isPrivate(), hasName("i"))));
+
+ // Non-member decls have the AccessSpecifier AS_none and thus aren't matched.
+ EXPECT_TRUE(notMatches("int i;", varDecl(isPublic(), hasName("i"))));
+ EXPECT_TRUE(notMatches("int i;", varDecl(isProtected(), hasName("i"))));
+ EXPECT_TRUE(notMatches("int i;", varDecl(isPrivate(), hasName("i"))));
+}
+
+TEST(hasDynamicExceptionSpec, MatchesDynamicExceptionSpecifications) {
+ EXPECT_TRUE(notMatches("void f();", functionDecl(hasDynamicExceptionSpec())));
+ EXPECT_TRUE(notMatches("void g() noexcept;",
+ functionDecl(hasDynamicExceptionSpec())));
+ EXPECT_TRUE(notMatches("void h() noexcept(true);",
+ functionDecl(hasDynamicExceptionSpec())));
+ EXPECT_TRUE(notMatches("void i() noexcept(false);",
+ functionDecl(hasDynamicExceptionSpec())));
+ EXPECT_TRUE(
+ matches("void j() throw();", functionDecl(hasDynamicExceptionSpec())));
+ EXPECT_TRUE(
+ matches("void k() throw(int);", functionDecl(hasDynamicExceptionSpec())));
+ EXPECT_TRUE(
+ matches("void l() throw(...);", functionDecl(hasDynamicExceptionSpec())));
+}
+
+TEST(HasObjectExpression, DoesNotMatchMember) {
+ EXPECT_TRUE(notMatches(
+ "class X {}; struct Z { X m; }; void f(Z z) { z.m; }",
+ memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X")))))));
+}
+
+TEST(HasObjectExpression, MatchesBaseOfVariable) {
+ EXPECT_TRUE(matches(
+ "struct X { int m; }; void f(X x) { x.m; }",
+ memberExpr(hasObjectExpression(hasType(recordDecl(hasName("X")))))));
+ EXPECT_TRUE(matches(
+ "struct X { int m; }; void f(X* x) { x->m; }",
+ memberExpr(hasObjectExpression(
+ hasType(pointsTo(recordDecl(hasName("X"))))))));
+}
+
+TEST(HasObjectExpression,
+ MatchesObjectExpressionOfImplicitlyFormedMemberExpression) {
+ EXPECT_TRUE(matches(
+ "class X {}; struct S { X m; void f() { this->m; } };",
+ memberExpr(hasObjectExpression(
+ hasType(pointsTo(recordDecl(hasName("S"))))))));
+ EXPECT_TRUE(matches(
+ "class X {}; struct S { X m; void f() { m; } };",
+ memberExpr(hasObjectExpression(
+ hasType(pointsTo(recordDecl(hasName("S"))))))));
+}
+
+TEST(Field, DoesNotMatchNonFieldMembers) {
+ EXPECT_TRUE(notMatches("class X { void m(); };", fieldDecl(hasName("m"))));
+ EXPECT_TRUE(notMatches("class X { class m {}; };", fieldDecl(hasName("m"))));
+ EXPECT_TRUE(notMatches("class X { enum { m }; };", fieldDecl(hasName("m"))));
+ EXPECT_TRUE(notMatches("class X { enum m {}; };", fieldDecl(hasName("m"))));
+}
+
+TEST(Field, MatchesField) {
+ EXPECT_TRUE(matches("class X { int m; };", fieldDecl(hasName("m"))));
+}
+
+TEST(IsVolatileQualified, QualifiersMatch) {
+ EXPECT_TRUE(matches("volatile int i = 42;",
+ varDecl(hasType(isVolatileQualified()))));
+ EXPECT_TRUE(notMatches("volatile int *i;",
+ varDecl(hasType(isVolatileQualified()))));
+ EXPECT_TRUE(matches("typedef volatile int v_int; v_int i = 42;",
+ varDecl(hasType(isVolatileQualified()))));
+}
+
+TEST(IsConstQualified, MatchesConstInt) {
+ EXPECT_TRUE(matches("const int i = 42;",
+ varDecl(hasType(isConstQualified()))));
+}
+
+TEST(IsConstQualified, MatchesConstPointer) {
+ EXPECT_TRUE(matches("int i = 42; int* const p(&i);",
+ varDecl(hasType(isConstQualified()))));
+}
+
+TEST(IsConstQualified, MatchesThroughTypedef) {
+ EXPECT_TRUE(matches("typedef const int const_int; const_int i = 42;",
+ varDecl(hasType(isConstQualified()))));
+ EXPECT_TRUE(matches("typedef int* int_ptr; const int_ptr p(0);",
+ varDecl(hasType(isConstQualified()))));
+}
+
+TEST(IsConstQualified, DoesNotMatchInappropriately) {
+ EXPECT_TRUE(notMatches("typedef int nonconst_int; nonconst_int i = 42;",
+ varDecl(hasType(isConstQualified()))));
+ EXPECT_TRUE(notMatches("int const* p;",
+ varDecl(hasType(isConstQualified()))));
+}
+
+TEST(DeclCount, DeclCountIsCorrect) {
+ EXPECT_TRUE(matches("void f() {int i,j;}",
+ declStmt(declCountIs(2))));
+ EXPECT_TRUE(notMatches("void f() {int i,j; int k;}",
+ declStmt(declCountIs(3))));
+ EXPECT_TRUE(notMatches("void f() {int i,j, k, l;}",
+ declStmt(declCountIs(3))));
+}
+
+
+TEST(EachOf, TriggersForEachMatch) {
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "class A { int a; int b; };",
+ recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
+ has(fieldDecl(hasName("b")).bind("v")))),
+ llvm::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v", 2)));
+}
+
+TEST(EachOf, BehavesLikeAnyOfUnlessBothMatch) {
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "class A { int a; int c; };",
+ recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
+ has(fieldDecl(hasName("b")).bind("v")))),
+ llvm::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v", 1)));
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "class A { int c; int b; };",
+ recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
+ has(fieldDecl(hasName("b")).bind("v")))),
+ llvm::make_unique<VerifyIdIsBoundTo<FieldDecl>>("v", 1)));
+ EXPECT_TRUE(notMatches(
+ "class A { int c; int d; };",
+ recordDecl(eachOf(has(fieldDecl(hasName("a")).bind("v")),
+ has(fieldDecl(hasName("b")).bind("v"))))));
+}
+
+TEST(IsTemplateInstantiation, MatchesImplicitClassTemplateInstantiation) {
+ // Make sure that we can both match the class by name (::X) and by the type
+ // the template was instantiated with (via a field).
+
+ EXPECT_TRUE(matches(
+ "template <typename T> class X {}; class A {}; X<A> x;",
+ cxxRecordDecl(hasName("::X"), isTemplateInstantiation())));
+
+ EXPECT_TRUE(matches(
+ "template <typename T> class X { T t; }; class A {}; X<A> x;",
+ cxxRecordDecl(isTemplateInstantiation(), hasDescendant(
+ fieldDecl(hasType(recordDecl(hasName("A"))))))));
+}
+
+TEST(IsTemplateInstantiation, MatchesImplicitFunctionTemplateInstantiation) {
+ EXPECT_TRUE(matches(
+ "template <typename T> void f(T t) {} class A {}; void g() { f(A()); }",
+ functionDecl(hasParameter(0, hasType(recordDecl(hasName("A")))),
+ isTemplateInstantiation())));
+}
+
+TEST(IsTemplateInstantiation, MatchesExplicitClassTemplateInstantiation) {
+ EXPECT_TRUE(matches(
+ "template <typename T> class X { T t; }; class A {};"
+ "template class X<A>;",
+ cxxRecordDecl(isTemplateInstantiation(), hasDescendant(
+ fieldDecl(hasType(recordDecl(hasName("A"))))))));
+}
+
+TEST(IsTemplateInstantiation,
+ MatchesInstantiationOfPartiallySpecializedClassTemplate) {
+ EXPECT_TRUE(matches(
+ "template <typename T> class X {};"
+ "template <typename T> class X<T*> {}; class A {}; X<A*> x;",
+ cxxRecordDecl(hasName("::X"), isTemplateInstantiation())));
+}
+
+TEST(IsTemplateInstantiation,
+ MatchesInstantiationOfClassTemplateNestedInNonTemplate) {
+ EXPECT_TRUE(matches(
+ "class A {};"
+ "class X {"
+ " template <typename U> class Y { U u; };"
+ " Y<A> y;"
+ "};",
+ cxxRecordDecl(hasName("::X::Y"), isTemplateInstantiation())));
+}
+
+TEST(IsTemplateInstantiation, DoesNotMatchInstantiationsInsideOfInstantiation) {
+ // FIXME: Figure out whether this makes sense. It doesn't affect the
+ // normal use case as long as the uppermost instantiation always is marked
+ // as template instantiation, but it might be confusing as a predicate.
+ EXPECT_TRUE(matches(
+ "class A {};"
+ "template <typename T> class X {"
+ " template <typename U> class Y { U u; };"
+ " Y<T> y;"
+ "}; X<A> x;",
+ cxxRecordDecl(hasName("::X<A>::Y"), unless(isTemplateInstantiation()))));
+}
+
+TEST(IsTemplateInstantiation, DoesNotMatchExplicitClassTemplateSpecialization) {
+ EXPECT_TRUE(notMatches(
+ "template <typename T> class X {}; class A {};"
+ "template <> class X<A> {}; X<A> x;",
+ cxxRecordDecl(hasName("::X"), isTemplateInstantiation())));
+}
+
+TEST(IsTemplateInstantiation, DoesNotMatchNonTemplate) {
+ EXPECT_TRUE(notMatches(
+ "class A {}; class Y { A a; };",
+ cxxRecordDecl(isTemplateInstantiation())));
+}
+
+TEST(IsInstantiated, MatchesInstantiation) {
+ EXPECT_TRUE(
+ matches("template<typename T> class A { T i; }; class Y { A<int> a; };",
+ cxxRecordDecl(isInstantiated())));
+}
+
+TEST(IsInstantiated, NotMatchesDefinition) {
+ EXPECT_TRUE(notMatches("template<typename T> class A { T i; };",
+ cxxRecordDecl(isInstantiated())));
+}
+
+TEST(IsInTemplateInstantiation, MatchesInstantiationStmt) {
+ EXPECT_TRUE(matches("template<typename T> struct A { A() { T i; } };"
+ "class Y { A<int> a; }; Y y;",
+ declStmt(isInTemplateInstantiation())));
+}
+
+TEST(IsInTemplateInstantiation, NotMatchesDefinitionStmt) {
+ EXPECT_TRUE(notMatches("template<typename T> struct A { void x() { T i; } };",
+ declStmt(isInTemplateInstantiation())));
+}
+
+TEST(IsInstantiated, MatchesFunctionInstantiation) {
+ EXPECT_TRUE(
+ matches("template<typename T> void A(T t) { T i; } void x() { A(0); }",
+ functionDecl(isInstantiated())));
+}
+
+TEST(IsInstantiated, NotMatchesFunctionDefinition) {
+ EXPECT_TRUE(notMatches("template<typename T> void A(T t) { T i; }",
+ varDecl(isInstantiated())));
+}
+
+TEST(IsInTemplateInstantiation, MatchesFunctionInstantiationStmt) {
+ EXPECT_TRUE(
+ matches("template<typename T> void A(T t) { T i; } void x() { A(0); }",
+ declStmt(isInTemplateInstantiation())));
+}
+
+TEST(IsInTemplateInstantiation, NotMatchesFunctionDefinitionStmt) {
+ EXPECT_TRUE(notMatches("template<typename T> void A(T t) { T i; }",
+ declStmt(isInTemplateInstantiation())));
+}
+
+TEST(IsInTemplateInstantiation, Sharing) {
+ auto Matcher = binaryOperator(unless(isInTemplateInstantiation()));
+ // FIXME: Node sharing is an implementation detail, exposing it is ugly
+ // and makes the matcher behave in non-obvious ways.
+ EXPECT_TRUE(notMatches(
+ "int j; template<typename T> void A(T t) { j += 42; } void x() { A(0); }",
+ Matcher));
+ EXPECT_TRUE(matches(
+ "int j; template<typename T> void A(T t) { j += t; } void x() { A(0); }",
+ Matcher));
+}
+
+TEST(IsExplicitTemplateSpecialization,
+ DoesNotMatchPrimaryTemplate) {
+ EXPECT_TRUE(notMatches(
+ "template <typename T> class X {};",
+ cxxRecordDecl(isExplicitTemplateSpecialization())));
+ EXPECT_TRUE(notMatches(
+ "template <typename T> void f(T t);",
+ functionDecl(isExplicitTemplateSpecialization())));
+}
+
+TEST(IsExplicitTemplateSpecialization,
+ DoesNotMatchExplicitTemplateInstantiations) {
+ EXPECT_TRUE(notMatches(
+ "template <typename T> class X {};"
+ "template class X<int>; extern template class X<long>;",
+ cxxRecordDecl(isExplicitTemplateSpecialization())));
+ EXPECT_TRUE(notMatches(
+ "template <typename T> void f(T t) {}"
+ "template void f(int t); extern template void f(long t);",
+ functionDecl(isExplicitTemplateSpecialization())));
+}
+
+TEST(IsExplicitTemplateSpecialization,
+ DoesNotMatchImplicitTemplateInstantiations) {
+ EXPECT_TRUE(notMatches(
+ "template <typename T> class X {}; X<int> x;",
+ cxxRecordDecl(isExplicitTemplateSpecialization())));
+ EXPECT_TRUE(notMatches(
+ "template <typename T> void f(T t); void g() { f(10); }",
+ functionDecl(isExplicitTemplateSpecialization())));
+}
+
+TEST(IsExplicitTemplateSpecialization,
+ MatchesExplicitTemplateSpecializations) {
+ EXPECT_TRUE(matches(
+ "template <typename T> class X {};"
+ "template<> class X<int> {};",
+ cxxRecordDecl(isExplicitTemplateSpecialization())));
+ EXPECT_TRUE(matches(
+ "template <typename T> void f(T t) {}"
+ "template<> void f(int t) {}",
+ functionDecl(isExplicitTemplateSpecialization())));
+}
+
+TEST(TypeMatching, MatchesBool) {
+ EXPECT_TRUE(matches("struct S { bool func(); };",
+ cxxMethodDecl(returns(booleanType()))));
+ EXPECT_TRUE(notMatches("struct S { void func(); };",
+ cxxMethodDecl(returns(booleanType()))));
+}
+
+TEST(TypeMatching, MatchesVoid) {
+ EXPECT_TRUE(matches("struct S { void func(); };",
+ cxxMethodDecl(returns(voidType()))));
+}
+
+TEST(TypeMatching, MatchesRealFloats) {
+ EXPECT_TRUE(matches("struct S { float func(); };",
+ cxxMethodDecl(returns(realFloatingPointType()))));
+ EXPECT_TRUE(notMatches("struct S { int func(); };",
+ cxxMethodDecl(returns(realFloatingPointType()))));
+ EXPECT_TRUE(matches("struct S { long double func(); };",
+ cxxMethodDecl(returns(realFloatingPointType()))));
+}
+
+TEST(TypeMatching, MatchesArrayTypes) {
+ EXPECT_TRUE(matches("int a[] = {2,3};", arrayType()));
+ EXPECT_TRUE(matches("int a[42];", arrayType()));
+ EXPECT_TRUE(matches("void f(int b) { int a[b]; }", arrayType()));
+
+ EXPECT_TRUE(notMatches("struct A {}; A a[7];",
+ arrayType(hasElementType(builtinType()))));
+
+ EXPECT_TRUE(matches(
+ "int const a[] = { 2, 3 };",
+ qualType(arrayType(hasElementType(builtinType())))));
+ EXPECT_TRUE(matches(
+ "int const a[] = { 2, 3 };",
+ qualType(isConstQualified(), arrayType(hasElementType(builtinType())))));
+ EXPECT_TRUE(matches(
+ "typedef const int T; T x[] = { 1, 2 };",
+ qualType(isConstQualified(), arrayType())));
+
+ EXPECT_TRUE(notMatches(
+ "int a[] = { 2, 3 };",
+ qualType(isConstQualified(), arrayType(hasElementType(builtinType())))));
+ EXPECT_TRUE(notMatches(
+ "int a[] = { 2, 3 };",
+ qualType(arrayType(hasElementType(isConstQualified(), builtinType())))));
+ EXPECT_TRUE(notMatches(
+ "int const a[] = { 2, 3 };",
+ qualType(arrayType(hasElementType(builtinType())),
+ unless(isConstQualified()))));
+
+ EXPECT_TRUE(matches("int a[2];",
+ constantArrayType(hasElementType(builtinType()))));
+ EXPECT_TRUE(matches("const int a = 0;", qualType(isInteger())));
+}
+
+TEST(TypeMatching, DecayedType) {
+ EXPECT_TRUE(matches("void f(int i[]);", valueDecl(hasType(decayedType(hasDecayedType(pointerType()))))));
+ EXPECT_TRUE(notMatches("int i[7];", decayedType()));
+}
+
+TEST(TypeMatching, MatchesComplexTypes) {
+ EXPECT_TRUE(matches("_Complex float f;", complexType()));
+ EXPECT_TRUE(matches(
+ "_Complex float f;",
+ complexType(hasElementType(builtinType()))));
+ EXPECT_TRUE(notMatches(
+ "_Complex float f;",
+ complexType(hasElementType(isInteger()))));
+}
+
+TEST(NS, Anonymous) {
+ EXPECT_TRUE(notMatches("namespace N {}", namespaceDecl(isAnonymous())));
+ EXPECT_TRUE(matches("namespace {}", namespaceDecl(isAnonymous())));
+}
+
+TEST(EqualsBoundNodeMatcher, QualType) {
+ EXPECT_TRUE(matches(
+ "int i = 1;", varDecl(hasType(qualType().bind("type")),
+ hasInitializer(ignoringParenImpCasts(
+ hasType(qualType(equalsBoundNode("type"))))))));
+ EXPECT_TRUE(notMatches("int i = 1.f;",
+ varDecl(hasType(qualType().bind("type")),
+ hasInitializer(ignoringParenImpCasts(hasType(
+ qualType(equalsBoundNode("type"))))))));
+}
+
+TEST(EqualsBoundNodeMatcher, NonMatchingTypes) {
+ EXPECT_TRUE(notMatches(
+ "int i = 1;", varDecl(namedDecl(hasName("i")).bind("name"),
+ hasInitializer(ignoringParenImpCasts(
+ hasType(qualType(equalsBoundNode("type"))))))));
+}
+
+TEST(EqualsBoundNodeMatcher, Stmt) {
+ EXPECT_TRUE(
+ matches("void f() { if(true) {} }",
+ stmt(allOf(ifStmt().bind("if"),
+ hasParent(stmt(has(stmt(equalsBoundNode("if")))))))));
+
+ EXPECT_TRUE(notMatches(
+ "void f() { if(true) { if (true) {} } }",
+ stmt(allOf(ifStmt().bind("if"), has(stmt(equalsBoundNode("if")))))));
+}
+
+TEST(EqualsBoundNodeMatcher, Decl) {
+ EXPECT_TRUE(matches(
+ "class X { class Y {}; };",
+ decl(allOf(recordDecl(hasName("::X::Y")).bind("record"),
+ hasParent(decl(has(decl(equalsBoundNode("record")))))))));
+
+ EXPECT_TRUE(notMatches("class X { class Y {}; };",
+ decl(allOf(recordDecl(hasName("::X")).bind("record"),
+ has(decl(equalsBoundNode("record")))))));
+}
+
+TEST(EqualsBoundNodeMatcher, Type) {
+ EXPECT_TRUE(matches(
+ "class X { int a; int b; };",
+ recordDecl(
+ has(fieldDecl(hasName("a"), hasType(type().bind("t")))),
+ has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t"))))))));
+
+ EXPECT_TRUE(notMatches(
+ "class X { int a; double b; };",
+ recordDecl(
+ has(fieldDecl(hasName("a"), hasType(type().bind("t")))),
+ has(fieldDecl(hasName("b"), hasType(type(equalsBoundNode("t"))))))));
+}
+
+TEST(EqualsBoundNodeMatcher, UsingForEachDescendant) {
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "int f() {"
+ " if (1) {"
+ " int i = 9;"
+ " }"
+ " int j = 10;"
+ " {"
+ " float k = 9.0;"
+ " }"
+ " return 0;"
+ "}",
+ // Look for variable declarations within functions whose type is the same
+ // as the function return type.
+ functionDecl(returns(qualType().bind("type")),
+ forEachDescendant(varDecl(hasType(
+ qualType(equalsBoundNode("type")))).bind("decl"))),
+ // Only i and j should match, not k.
+ llvm::make_unique<VerifyIdIsBoundTo<VarDecl>>("decl", 2)));
+}
+
+TEST(EqualsBoundNodeMatcher, FiltersMatchedCombinations) {
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "void f() {"
+ " int x;"
+ " double d;"
+ " x = d + x - d + x;"
+ "}",
+ functionDecl(
+ hasName("f"), forEachDescendant(varDecl().bind("d")),
+ forEachDescendant(declRefExpr(to(decl(equalsBoundNode("d")))))),
+ llvm::make_unique<VerifyIdIsBoundTo<VarDecl>>("d", 5)));
+}
+
+TEST(EqualsBoundNodeMatcher, UnlessDescendantsOfAncestorsMatch) {
+ EXPECT_TRUE(matchAndVerifyResultTrue(
+ "struct StringRef { int size() const; const char* data() const; };"
+ "void f(StringRef v) {"
+ " v.data();"
+ "}",
+ cxxMemberCallExpr(
+ callee(cxxMethodDecl(hasName("data"))),
+ on(declRefExpr(to(
+ varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))),
+ unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr(
+ callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))),
+ on(declRefExpr(to(varDecl(equalsBoundNode("var")))))))))))
+ .bind("data"),
+ llvm::make_unique<VerifyIdIsBoundTo<Expr>>("data", 1)));
+
+ EXPECT_FALSE(matches(
+ "struct StringRef { int size() const; const char* data() const; };"
+ "void f(StringRef v) {"
+ " v.data();"
+ " v.size();"
+ "}",
+ cxxMemberCallExpr(
+ callee(cxxMethodDecl(hasName("data"))),
+ on(declRefExpr(to(
+ varDecl(hasType(recordDecl(hasName("StringRef")))).bind("var")))),
+ unless(hasAncestor(stmt(hasDescendant(cxxMemberCallExpr(
+ callee(cxxMethodDecl(anyOf(hasName("size"), hasName("length")))),
+ on(declRefExpr(to(varDecl(equalsBoundNode("var")))))))))))
+ .bind("data")));
+}
+
+TEST(NullPointerConstants, Basic) {
+ EXPECT_TRUE(matches("#define NULL ((void *)0)\n"
+ "void *v1 = NULL;", expr(nullPointerConstant())));
+ EXPECT_TRUE(matches("void *v2 = nullptr;", expr(nullPointerConstant())));
+ EXPECT_TRUE(matches("void *v3 = __null;", expr(nullPointerConstant())));
+ EXPECT_TRUE(matches("char *cp = (char *)0;", expr(nullPointerConstant())));
+ EXPECT_TRUE(matches("int *ip = 0;", expr(nullPointerConstant())));
+ EXPECT_TRUE(notMatches("int i = 0;", expr(nullPointerConstant())));
+}
+
+} // namespace ast_matchers
+} // namespace clang