forked from OSchip/llvm-project
1380 lines
47 KiB
C++
1380 lines
47 KiB
C++
#include "clang/AST/ASTContext.h"
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#include "clang/AST/ASTStructuralEquivalence.h"
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#include "clang/ASTMatchers/ASTMatchers.h"
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#include "clang/Frontend/ASTUnit.h"
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#include "clang/Testing/CommandLineArgs.h"
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#include "clang/Tooling/Tooling.h"
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#include "llvm/Support/Host.h"
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#include "DeclMatcher.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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using std::get;
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struct StructuralEquivalenceTest : ::testing::Test {
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std::unique_ptr<ASTUnit> AST0, AST1;
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std::string Code0, Code1; // Buffers for SourceManager
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// Get a pair of node pointers into the synthesized AST from the given code
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// snippets. To determine the returned node, a separate matcher is specified
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// for both snippets. The first matching node is returned.
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template <typename NodeType, typename MatcherType>
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std::tuple<NodeType *, NodeType *>
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makeDecls(const std::string &SrcCode0, const std::string &SrcCode1,
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TestLanguage Lang, const MatcherType &Matcher0,
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const MatcherType &Matcher1) {
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this->Code0 = SrcCode0;
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this->Code1 = SrcCode1;
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std::vector<std::string> Args = getCommandLineArgsForTesting(Lang);
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const char *const InputFileName = "input.cc";
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AST0 = tooling::buildASTFromCodeWithArgs(Code0, Args, InputFileName);
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AST1 = tooling::buildASTFromCodeWithArgs(Code1, Args, InputFileName);
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NodeType *D0 = FirstDeclMatcher<NodeType>().match(
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AST0->getASTContext().getTranslationUnitDecl(), Matcher0);
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NodeType *D1 = FirstDeclMatcher<NodeType>().match(
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AST1->getASTContext().getTranslationUnitDecl(), Matcher1);
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return std::make_tuple(D0, D1);
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}
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std::tuple<TranslationUnitDecl *, TranslationUnitDecl *>
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makeTuDecls(const std::string &SrcCode0, const std::string &SrcCode1,
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TestLanguage Lang) {
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this->Code0 = SrcCode0;
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this->Code1 = SrcCode1;
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std::vector<std::string> Args = getCommandLineArgsForTesting(Lang);
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const char *const InputFileName = "input.cc";
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AST0 = tooling::buildASTFromCodeWithArgs(Code0, Args, InputFileName);
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AST1 = tooling::buildASTFromCodeWithArgs(Code1, Args, InputFileName);
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return std::make_tuple(AST0->getASTContext().getTranslationUnitDecl(),
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AST1->getASTContext().getTranslationUnitDecl());
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}
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// Get a pair of node pointers into the synthesized AST from the given code
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// snippets. The same matcher is used for both snippets.
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template <typename NodeType, typename MatcherType>
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std::tuple<NodeType *, NodeType *>
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makeDecls(const std::string &SrcCode0, const std::string &SrcCode1,
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TestLanguage Lang, const MatcherType &AMatcher) {
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return makeDecls<NodeType, MatcherType>(
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SrcCode0, SrcCode1, Lang, AMatcher, AMatcher);
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}
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// Get a pair of Decl pointers to the synthesized declarations from the given
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// code snippets. We search for the first NamedDecl with given name in both
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// snippets.
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std::tuple<NamedDecl *, NamedDecl *>
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makeNamedDecls(const std::string &SrcCode0, const std::string &SrcCode1,
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TestLanguage Lang, const char *const Identifier = "foo") {
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auto Matcher = namedDecl(hasName(Identifier));
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return makeDecls<NamedDecl>(SrcCode0, SrcCode1, Lang, Matcher);
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}
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bool testStructuralMatch(Decl *D0, Decl *D1) {
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llvm::DenseSet<std::pair<Decl *, Decl *>> NonEquivalentDecls01;
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llvm::DenseSet<std::pair<Decl *, Decl *>> NonEquivalentDecls10;
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StructuralEquivalenceContext Ctx01(
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D0->getASTContext(), D1->getASTContext(),
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NonEquivalentDecls01, StructuralEquivalenceKind::Default, false, false);
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StructuralEquivalenceContext Ctx10(
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D1->getASTContext(), D0->getASTContext(),
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NonEquivalentDecls10, StructuralEquivalenceKind::Default, false, false);
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bool Eq01 = Ctx01.IsEquivalent(D0, D1);
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bool Eq10 = Ctx10.IsEquivalent(D1, D0);
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EXPECT_EQ(Eq01, Eq10);
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return Eq01;
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}
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bool testStructuralMatch(std::tuple<Decl *, Decl *> t) {
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return testStructuralMatch(get<0>(t), get<1>(t));
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}
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};
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TEST_F(StructuralEquivalenceTest, Int) {
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auto Decls = makeNamedDecls("int foo;", "int foo;", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(Decls));
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}
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TEST_F(StructuralEquivalenceTest, IntVsSignedInt) {
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auto Decls = makeNamedDecls("int foo;", "signed int foo;", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(Decls));
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}
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TEST_F(StructuralEquivalenceTest, Char) {
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auto Decls = makeNamedDecls("char foo;", "char foo;", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(Decls));
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}
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// This test is disabled for now.
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// FIXME Whether this is equivalent is dependendant on the target.
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TEST_F(StructuralEquivalenceTest, DISABLED_CharVsSignedChar) {
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auto Decls = makeNamedDecls("char foo;", "signed char foo;", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(Decls));
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}
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TEST_F(StructuralEquivalenceTest, ForwardRecordDecl) {
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auto Decls = makeNamedDecls("struct foo;", "struct foo;", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(Decls));
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}
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TEST_F(StructuralEquivalenceTest, IntVsSignedIntInStruct) {
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auto Decls = makeNamedDecls("struct foo { int x; };",
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"struct foo { signed int x; };", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(Decls));
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}
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TEST_F(StructuralEquivalenceTest, CharVsSignedCharInStruct) {
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auto Decls = makeNamedDecls("struct foo { char x; };",
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"struct foo { signed char x; };", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(Decls));
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}
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TEST_F(StructuralEquivalenceTest, IntVsSignedIntTemplateSpec) {
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auto Decls = makeDecls<ClassTemplateSpecializationDecl>(
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R"(template <class T> struct foo; template<> struct foo<int>{};)",
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R"(template <class T> struct foo; template<> struct foo<signed int>{};)",
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Lang_CXX03, classTemplateSpecializationDecl());
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auto Spec0 = get<0>(Decls);
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auto Spec1 = get<1>(Decls);
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EXPECT_TRUE(testStructuralMatch(Spec0, Spec1));
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}
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TEST_F(StructuralEquivalenceTest, CharVsSignedCharTemplateSpec) {
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auto Decls = makeDecls<ClassTemplateSpecializationDecl>(
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R"(template <class T> struct foo; template<> struct foo<char>{};)",
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R"(template <class T> struct foo; template<> struct foo<signed char>{};)",
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Lang_CXX03, classTemplateSpecializationDecl());
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auto Spec0 = get<0>(Decls);
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auto Spec1 = get<1>(Decls);
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EXPECT_FALSE(testStructuralMatch(Spec0, Spec1));
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}
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TEST_F(StructuralEquivalenceTest, CharVsSignedCharTemplateSpecWithInheritance) {
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auto Decls = makeDecls<ClassTemplateSpecializationDecl>(
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R"(
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struct true_type{};
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template <class T> struct foo;
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template<> struct foo<char> : true_type {};
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)",
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R"(
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struct true_type{};
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template <class T> struct foo;
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template<> struct foo<signed char> : true_type {};
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)",
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Lang_CXX03, classTemplateSpecializationDecl());
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EXPECT_FALSE(testStructuralMatch(Decls));
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}
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// This test is disabled for now.
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// FIXME Enable it, once the check is implemented.
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TEST_F(StructuralEquivalenceTest, DISABLED_WrongOrderInNamespace) {
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auto Code =
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R"(
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namespace NS {
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template <class T> class Base {
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int a;
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};
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class Derived : Base<Derived> {
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};
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}
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void foo(NS::Derived &);
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)";
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auto Decls = makeNamedDecls(Code, Code, Lang_CXX03);
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NamespaceDecl *NS =
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LastDeclMatcher<NamespaceDecl>().match(get<1>(Decls), namespaceDecl());
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ClassTemplateDecl *TD = LastDeclMatcher<ClassTemplateDecl>().match(
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get<1>(Decls), classTemplateDecl(hasName("Base")));
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// Reorder the decls, move the TD to the last place in the DC.
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NS->removeDecl(TD);
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NS->addDeclInternal(TD);
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EXPECT_FALSE(testStructuralMatch(Decls));
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}
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TEST_F(StructuralEquivalenceTest, WrongOrderOfFieldsInClass) {
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auto Code = "class X { int a; int b; };";
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auto Decls = makeNamedDecls(Code, Code, Lang_CXX03, "X");
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CXXRecordDecl *RD = FirstDeclMatcher<CXXRecordDecl>().match(
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get<1>(Decls), cxxRecordDecl(hasName("X")));
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FieldDecl *FD =
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FirstDeclMatcher<FieldDecl>().match(get<1>(Decls), fieldDecl(hasName("a")));
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// Reorder the FieldDecls
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RD->removeDecl(FD);
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RD->addDeclInternal(FD);
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EXPECT_FALSE(testStructuralMatch(Decls));
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}
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struct StructuralEquivalenceFunctionTest : StructuralEquivalenceTest {
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};
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TEST_F(StructuralEquivalenceFunctionTest, TemplateVsNonTemplate) {
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auto t = makeNamedDecls("void foo();", "template<class T> void foo();",
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Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, DifferentOperators) {
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auto t = makeDecls<FunctionDecl>(
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"struct X{}; bool operator<(X, X);", "struct X{}; bool operator==(X, X);",
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Lang_CXX03, functionDecl(hasOverloadedOperatorName("<")),
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functionDecl(hasOverloadedOperatorName("==")));
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, SameOperators) {
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auto t = makeDecls<FunctionDecl>(
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"struct X{}; bool operator<(X, X);", "struct X{}; bool operator<(X, X);",
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Lang_CXX03, functionDecl(hasOverloadedOperatorName("<")),
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functionDecl(hasOverloadedOperatorName("<")));
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EXPECT_TRUE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, CtorVsDtor) {
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auto t = makeDecls<FunctionDecl>("struct X{ X(); };", "struct X{ ~X(); };",
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Lang_CXX03, cxxConstructorDecl(),
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cxxDestructorDecl());
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ParamConstWithRef) {
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auto t =
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makeNamedDecls("void foo(int&);", "void foo(const int&);", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ParamConstSimple) {
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auto t = makeNamedDecls("void foo(int);", "void foo(const int);", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(t));
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// consider this OK
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}
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TEST_F(StructuralEquivalenceFunctionTest, Throw) {
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auto t = makeNamedDecls("void foo();", "void foo() throw();", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, Noexcept) {
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auto t = makeNamedDecls("void foo();",
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"void foo() noexcept;", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ThrowVsNoexcept) {
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auto t = makeNamedDecls("void foo() throw();",
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"void foo() noexcept;", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ThrowVsNoexceptFalse) {
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auto t = makeNamedDecls("void foo() throw();",
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"void foo() noexcept(false);", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ThrowVsNoexceptTrue) {
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auto t = makeNamedDecls("void foo() throw();",
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"void foo() noexcept(true);", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, NoexceptNonMatch) {
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auto t = makeNamedDecls("void foo() noexcept(false);",
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"void foo() noexcept(true);", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, NoexceptMatch) {
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auto t = makeNamedDecls("void foo() noexcept(false);",
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"void foo() noexcept(false);", Lang_CXX11);
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EXPECT_TRUE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, NoexceptVsNoexceptFalse) {
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auto t = makeNamedDecls("void foo() noexcept;",
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"void foo() noexcept(false);", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, NoexceptVsNoexceptTrue) {
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auto t = makeNamedDecls("void foo() noexcept;",
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"void foo() noexcept(true);", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ReturnType) {
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auto t = makeNamedDecls("char foo();", "int foo();", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ReturnConst) {
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auto t = makeNamedDecls("char foo();", "const char foo();", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ReturnRef) {
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auto t = makeNamedDecls("char &foo();",
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"char &&foo();", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ParamCount) {
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auto t = makeNamedDecls("void foo(int);", "void foo(int, int);", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ParamType) {
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auto t = makeNamedDecls("void foo(int);", "void foo(char);", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ParamName) {
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auto t = makeNamedDecls("void foo(int a);", "void foo(int b);", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, Variadic) {
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auto t =
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makeNamedDecls("void foo(int x...);", "void foo(int x);", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, ParamPtr) {
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auto t = makeNamedDecls("void foo(int *);", "void foo(int);", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, NameInParen) {
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auto t = makeNamedDecls("void ((foo))();", "void foo();", Lang_CXX03);
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EXPECT_TRUE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, NameInParenWithExceptionSpec) {
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auto t = makeNamedDecls(
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"void (foo)() throw(int);",
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"void (foo)() noexcept;",
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Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, NameInParenWithConst) {
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auto t = makeNamedDecls(
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"struct A { void (foo)() const; };",
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"struct A { void (foo)(); };",
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Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, FunctionsWithDifferentNoreturnAttr) {
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auto t = makeNamedDecls("__attribute__((noreturn)) void foo();",
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" void foo();", Lang_C99);
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EXPECT_TRUE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest,
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FunctionsWithDifferentCallingConventions) {
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// These attributes may not be available on certain platforms.
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if (llvm::Triple(llvm::sys::getDefaultTargetTriple()).getArch() !=
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llvm::Triple::x86_64)
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return;
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auto t = makeNamedDecls("__attribute__((preserve_all)) void foo();",
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"__attribute__((ms_abi)) void foo();", Lang_C99);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceFunctionTest, FunctionsWithDifferentSavedRegsAttr) {
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if (llvm::Triple(llvm::sys::getDefaultTargetTriple()).getArch() !=
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llvm::Triple::x86_64)
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return;
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auto t = makeNamedDecls(
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"__attribute__((no_caller_saved_registers)) void foo();",
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" void foo();", Lang_C99);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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struct StructuralEquivalenceCXXMethodTest : StructuralEquivalenceTest {
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};
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TEST_F(StructuralEquivalenceCXXMethodTest, Virtual) {
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auto t = makeDecls<CXXMethodDecl>("struct X { void foo(); };",
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"struct X { virtual void foo(); };",
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Lang_CXX03, cxxMethodDecl(hasName("foo")));
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceCXXMethodTest, Pure) {
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auto t = makeNamedDecls("struct X { virtual void foo(); };",
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"struct X { virtual void foo() = 0; };", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceCXXMethodTest, DISABLED_Final) {
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// The final-ness is not checked yet.
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auto t =
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makeNamedDecls("struct X { virtual void foo(); };",
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"struct X { virtual void foo() final; };", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceCXXMethodTest, Const) {
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auto t = makeNamedDecls("struct X { void foo(); };",
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"struct X { void foo() const; };", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceCXXMethodTest, Static) {
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auto t = makeNamedDecls("struct X { void foo(); };",
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"struct X { static void foo(); };", Lang_CXX03);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceCXXMethodTest, Ref1) {
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auto t = makeNamedDecls("struct X { void foo(); };",
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"struct X { void foo() &&; };", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceCXXMethodTest, Ref2) {
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auto t = makeNamedDecls("struct X { void foo() &; };",
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"struct X { void foo() &&; };", Lang_CXX11);
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EXPECT_FALSE(testStructuralMatch(t));
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}
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TEST_F(StructuralEquivalenceCXXMethodTest, AccessSpecifier) {
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auto t = makeDecls<CXXMethodDecl>("struct X { public: void foo(); };",
|
|
"struct X { private: void foo(); };",
|
|
Lang_CXX03, cxxMethodDecl(hasName("foo")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, Delete) {
|
|
auto t = makeNamedDecls("struct X { void foo(); };",
|
|
"struct X { void foo() = delete; };", Lang_CXX11);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, Constructor) {
|
|
auto t = makeDecls<FunctionDecl>("void foo();", "struct foo { foo(); };",
|
|
Lang_CXX03, functionDecl(hasName("foo")),
|
|
cxxConstructorDecl(hasName("foo")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, ConstructorParam) {
|
|
auto t = makeDecls<CXXConstructorDecl>("struct X { X(); };",
|
|
"struct X { X(int); };", Lang_CXX03,
|
|
cxxConstructorDecl(hasName("X")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, ConstructorExplicit) {
|
|
auto t = makeDecls<CXXConstructorDecl>("struct X { X(int); };",
|
|
"struct X { explicit X(int); };",
|
|
Lang_CXX11,
|
|
cxxConstructorDecl(hasName("X")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, ConstructorDefault) {
|
|
auto t = makeDecls<CXXConstructorDecl>("struct X { X(); };",
|
|
"struct X { X() = default; };",
|
|
Lang_CXX11,
|
|
cxxConstructorDecl(hasName("X")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, Conversion) {
|
|
auto t = makeDecls<CXXConversionDecl>("struct X { operator bool(); };",
|
|
"struct X { operator char(); };",
|
|
Lang_CXX11,
|
|
cxxConversionDecl());
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, Operator) {
|
|
auto t =
|
|
makeDecls<FunctionDecl>("struct X { int operator +(int); };",
|
|
"struct X { int operator -(int); };", Lang_CXX03,
|
|
functionDecl(hasOverloadedOperatorName("+")),
|
|
functionDecl(hasOverloadedOperatorName("-")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, OutOfClass1) {
|
|
auto t = makeDecls<FunctionDecl>(
|
|
"struct X { virtual void f(); }; void X::f() { }",
|
|
"struct X { virtual void f() { }; };", Lang_CXX03,
|
|
functionDecl(allOf(hasName("f"), isDefinition())));
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCXXMethodTest, OutOfClass2) {
|
|
auto t = makeDecls<FunctionDecl>(
|
|
"struct X { virtual void f(); }; void X::f() { }",
|
|
"struct X { void f(); }; void X::f() { }", Lang_CXX03,
|
|
functionDecl(allOf(hasName("f"), isDefinition())));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
struct StructuralEquivalenceRecordTest : StructuralEquivalenceTest {
|
|
// FIXME Use a common getRecordDecl with ASTImporterTest.cpp!
|
|
RecordDecl *getRecordDecl(FieldDecl *FD) {
|
|
auto *ET = cast<ElaboratedType>(FD->getType().getTypePtr());
|
|
return cast<RecordType>(ET->getNamedType().getTypePtr())->getDecl();
|
|
};
|
|
};
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, Name) {
|
|
auto t = makeDecls<CXXRecordDecl>("struct A{ };", "struct B{ };", Lang_CXX03,
|
|
cxxRecordDecl(hasName("A")),
|
|
cxxRecordDecl(hasName("B")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, Fields) {
|
|
auto t = makeNamedDecls("struct foo{ int x; };", "struct foo{ char x; };",
|
|
Lang_CXX03);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, DISABLED_Methods) {
|
|
// Currently, methods of a class are not checked at class equivalence.
|
|
auto t = makeNamedDecls("struct foo{ int x(); };", "struct foo{ char x(); };",
|
|
Lang_CXX03);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, Bases) {
|
|
auto t = makeNamedDecls("struct A{ }; struct foo: A { };",
|
|
"struct B{ }; struct foo: B { };", Lang_CXX03);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, InheritanceVirtual) {
|
|
auto t =
|
|
makeNamedDecls("struct A{ }; struct foo: A { };",
|
|
"struct A{ }; struct foo: virtual A { };", Lang_CXX03);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, DISABLED_InheritanceType) {
|
|
// Access specifier in inheritance is not checked yet.
|
|
auto t =
|
|
makeNamedDecls("struct A{ }; struct foo: public A { };",
|
|
"struct A{ }; struct foo: private A { };", Lang_CXX03);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, Match) {
|
|
auto Code = R"(
|
|
struct A{ };
|
|
struct B{ };
|
|
struct foo: A, virtual B {
|
|
void x();
|
|
int a;
|
|
};
|
|
)";
|
|
auto t = makeNamedDecls(Code, Code, Lang_CXX03);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, UnnamedRecordsShouldBeInequivalent) {
|
|
auto t = makeTuDecls(
|
|
R"(
|
|
struct A {
|
|
struct {
|
|
struct A *next;
|
|
} entry0;
|
|
struct {
|
|
struct A *next;
|
|
} entry1;
|
|
};
|
|
)",
|
|
"", Lang_C99);
|
|
auto *TU = get<0>(t);
|
|
auto *Entry0 =
|
|
FirstDeclMatcher<FieldDecl>().match(TU, fieldDecl(hasName("entry0")));
|
|
auto *Entry1 =
|
|
FirstDeclMatcher<FieldDecl>().match(TU, fieldDecl(hasName("entry1")));
|
|
auto *R0 = getRecordDecl(Entry0);
|
|
auto *R1 = getRecordDecl(Entry1);
|
|
|
|
ASSERT_NE(R0, R1);
|
|
EXPECT_TRUE(testStructuralMatch(R0, R0));
|
|
EXPECT_TRUE(testStructuralMatch(R1, R1));
|
|
EXPECT_FALSE(testStructuralMatch(R0, R1));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, AnonymousRecordsShouldBeInequivalent) {
|
|
auto t = makeTuDecls(
|
|
R"(
|
|
struct X {
|
|
struct {
|
|
int a;
|
|
};
|
|
struct {
|
|
int b;
|
|
};
|
|
};
|
|
)",
|
|
"", Lang_C99);
|
|
auto *TU = get<0>(t);
|
|
auto *A = FirstDeclMatcher<IndirectFieldDecl>().match(
|
|
TU, indirectFieldDecl(hasName("a")));
|
|
auto *FA = cast<FieldDecl>(A->chain().front());
|
|
RecordDecl *RA = cast<RecordType>(FA->getType().getTypePtr())->getDecl();
|
|
auto *B = FirstDeclMatcher<IndirectFieldDecl>().match(
|
|
TU, indirectFieldDecl(hasName("b")));
|
|
auto *FB = cast<FieldDecl>(B->chain().front());
|
|
RecordDecl *RB = cast<RecordType>(FB->getType().getTypePtr())->getDecl();
|
|
|
|
ASSERT_NE(RA, RB);
|
|
EXPECT_TRUE(testStructuralMatch(RA, RA));
|
|
EXPECT_TRUE(testStructuralMatch(RB, RB));
|
|
EXPECT_FALSE(testStructuralMatch(RA, RB));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest,
|
|
RecordsAreInequivalentIfOrderOfAnonRecordsIsDifferent) {
|
|
auto t = makeTuDecls(
|
|
R"(
|
|
struct X {
|
|
struct { int a; };
|
|
struct { int b; };
|
|
};
|
|
)",
|
|
R"(
|
|
struct X { // The order is reversed.
|
|
struct { int b; };
|
|
struct { int a; };
|
|
};
|
|
)",
|
|
Lang_C99);
|
|
|
|
auto *TU = get<0>(t);
|
|
auto *A = FirstDeclMatcher<IndirectFieldDecl>().match(
|
|
TU, indirectFieldDecl(hasName("a")));
|
|
auto *FA = cast<FieldDecl>(A->chain().front());
|
|
RecordDecl *RA = cast<RecordType>(FA->getType().getTypePtr())->getDecl();
|
|
|
|
auto *TU1 = get<1>(t);
|
|
auto *A1 = FirstDeclMatcher<IndirectFieldDecl>().match(
|
|
TU1, indirectFieldDecl(hasName("a")));
|
|
auto *FA1 = cast<FieldDecl>(A1->chain().front());
|
|
RecordDecl *RA1 = cast<RecordType>(FA1->getType().getTypePtr())->getDecl();
|
|
|
|
RecordDecl *X =
|
|
FirstDeclMatcher<RecordDecl>().match(TU, recordDecl(hasName("X")));
|
|
RecordDecl *X1 =
|
|
FirstDeclMatcher<RecordDecl>().match(TU1, recordDecl(hasName("X")));
|
|
ASSERT_NE(X, X1);
|
|
EXPECT_FALSE(testStructuralMatch(X, X1));
|
|
|
|
ASSERT_NE(RA, RA1);
|
|
EXPECT_TRUE(testStructuralMatch(RA, RA));
|
|
EXPECT_TRUE(testStructuralMatch(RA1, RA1));
|
|
EXPECT_FALSE(testStructuralMatch(RA1, RA));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest,
|
|
UnnamedRecordsShouldBeInequivalentEvenIfTheSecondIsBeingDefined) {
|
|
auto Code =
|
|
R"(
|
|
struct A {
|
|
struct {
|
|
struct A *next;
|
|
} entry0;
|
|
struct {
|
|
struct A *next;
|
|
} entry1;
|
|
};
|
|
)";
|
|
auto t = makeTuDecls(Code, Code, Lang_C99);
|
|
|
|
auto *FromTU = get<0>(t);
|
|
auto *Entry1 =
|
|
FirstDeclMatcher<FieldDecl>().match(FromTU, fieldDecl(hasName("entry1")));
|
|
|
|
auto *ToTU = get<1>(t);
|
|
auto *Entry0 =
|
|
FirstDeclMatcher<FieldDecl>().match(ToTU, fieldDecl(hasName("entry0")));
|
|
auto *A =
|
|
FirstDeclMatcher<RecordDecl>().match(ToTU, recordDecl(hasName("A")));
|
|
A->startDefinition(); // Set isBeingDefined, getDefinition() will return a
|
|
// nullptr. This may be the case during ASTImport.
|
|
|
|
auto *R0 = getRecordDecl(Entry0);
|
|
auto *R1 = getRecordDecl(Entry1);
|
|
|
|
ASSERT_NE(R0, R1);
|
|
EXPECT_TRUE(testStructuralMatch(R0, R0));
|
|
EXPECT_TRUE(testStructuralMatch(R1, R1));
|
|
EXPECT_FALSE(testStructuralMatch(R0, R1));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, TemplateVsNonTemplate) {
|
|
auto t = makeDecls<CXXRecordDecl>("struct A { };",
|
|
"template<class T> struct A { };",
|
|
Lang_CXX03, cxxRecordDecl(hasName("A")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest,
|
|
FwdDeclRecordShouldBeEqualWithFwdDeclRecord) {
|
|
auto t = makeNamedDecls("class foo;", "class foo;", Lang_CXX11);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest,
|
|
FwdDeclRecordShouldBeEqualWithRecordWhichHasDefinition) {
|
|
auto t =
|
|
makeNamedDecls("class foo;", "class foo { int A; };", Lang_CXX11);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest,
|
|
RecordShouldBeEqualWithRecordWhichHasDefinition) {
|
|
auto t = makeNamedDecls("class foo { int A; };", "class foo { int A; };",
|
|
Lang_CXX11);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, RecordsWithDifferentBody) {
|
|
auto t = makeNamedDecls("class foo { int B; };", "class foo { int A; };",
|
|
Lang_CXX11);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, SameFriendMultipleTimes) {
|
|
auto t = makeNamedDecls("struct foo { friend class X; };",
|
|
"struct foo { friend class X; friend class X; };",
|
|
Lang_CXX11);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, SameFriendsDifferentOrder) {
|
|
auto t = makeNamedDecls("struct foo { friend class X; friend class Y; };",
|
|
"struct foo { friend class Y; friend class X; };",
|
|
Lang_CXX11);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceRecordTest, SameFriendsSameOrder) {
|
|
auto t = makeNamedDecls("struct foo { friend class X; friend class Y; };",
|
|
"struct foo { friend class X; friend class Y; };",
|
|
Lang_CXX11);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
struct StructuralEquivalenceLambdaTest : StructuralEquivalenceTest {};
|
|
|
|
TEST_F(StructuralEquivalenceLambdaTest, LambdaClassesWithDifferentMethods) {
|
|
// Get the LambdaExprs, unfortunately we can't match directly the underlying
|
|
// implicit CXXRecordDecl of the Lambda classes.
|
|
auto t = makeDecls<LambdaExpr>(
|
|
"void f() { auto L0 = [](int){}; }",
|
|
"void f() { auto L1 = [](){}; }",
|
|
Lang_CXX11,
|
|
lambdaExpr(),
|
|
lambdaExpr());
|
|
CXXRecordDecl *L0 = get<0>(t)->getLambdaClass();
|
|
CXXRecordDecl *L1 = get<1>(t)->getLambdaClass();
|
|
EXPECT_FALSE(testStructuralMatch(L0, L1));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceLambdaTest, LambdaClassesWithEqMethods) {
|
|
auto t = makeDecls<LambdaExpr>(
|
|
"void f() { auto L0 = [](int){}; }",
|
|
"void f() { auto L1 = [](int){}; }",
|
|
Lang_CXX11,
|
|
lambdaExpr(),
|
|
lambdaExpr());
|
|
CXXRecordDecl *L0 = get<0>(t)->getLambdaClass();
|
|
CXXRecordDecl *L1 = get<1>(t)->getLambdaClass();
|
|
EXPECT_TRUE(testStructuralMatch(L0, L1));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceLambdaTest, LambdaClassesWithDifferentFields) {
|
|
auto t = makeDecls<LambdaExpr>(
|
|
"void f() { char* X; auto L0 = [X](){}; }",
|
|
"void f() { float X; auto L1 = [X](){}; }",
|
|
Lang_CXX11,
|
|
lambdaExpr(),
|
|
lambdaExpr());
|
|
CXXRecordDecl *L0 = get<0>(t)->getLambdaClass();
|
|
CXXRecordDecl *L1 = get<1>(t)->getLambdaClass();
|
|
EXPECT_FALSE(testStructuralMatch(L0, L1));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceLambdaTest, LambdaClassesWithEqFields) {
|
|
auto t = makeDecls<LambdaExpr>(
|
|
"void f() { float X; auto L0 = [X](){}; }",
|
|
"void f() { float X; auto L1 = [X](){}; }",
|
|
Lang_CXX11,
|
|
lambdaExpr(),
|
|
lambdaExpr());
|
|
CXXRecordDecl *L0 = get<0>(t)->getLambdaClass();
|
|
CXXRecordDecl *L1 = get<1>(t)->getLambdaClass();
|
|
EXPECT_TRUE(testStructuralMatch(L0, L1));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTest, CompareSameDeclWithMultiple) {
|
|
auto t = makeNamedDecls("struct A{ }; struct B{ }; void foo(A a, A b);",
|
|
"struct A{ }; struct B{ }; void foo(A a, B b);",
|
|
Lang_CXX03);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTest, ExplicitBoolDifferent) {
|
|
auto Decls = makeNamedDecls("struct foo {explicit(false) foo(int);};",
|
|
"struct foo {explicit(true) foo(int);};", Lang_CXX20);
|
|
CXXConstructorDecl *First = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<0>(Decls), cxxConstructorDecl(hasName("foo")));
|
|
CXXConstructorDecl *Second = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<1>(Decls), cxxConstructorDecl(hasName("foo")));
|
|
EXPECT_FALSE(testStructuralMatch(First, Second));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTest, ExplicitBoolSame) {
|
|
auto Decls = makeNamedDecls("struct foo {explicit(true) foo(int);};",
|
|
"struct foo {explicit(true) foo(int);};", Lang_CXX20);
|
|
CXXConstructorDecl *First = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<0>(Decls), cxxConstructorDecl(hasName("foo")));
|
|
CXXConstructorDecl *Second = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<1>(Decls), cxxConstructorDecl(hasName("foo")));
|
|
EXPECT_TRUE(testStructuralMatch(First, Second));
|
|
}
|
|
|
|
struct StructuralEquivalenceEnumTest : StructuralEquivalenceTest {};
|
|
|
|
TEST_F(StructuralEquivalenceEnumTest, FwdDeclEnumShouldBeEqualWithFwdDeclEnum) {
|
|
auto t = makeNamedDecls("enum class foo;", "enum class foo;", Lang_CXX11);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceEnumTest,
|
|
FwdDeclEnumShouldBeEqualWithEnumWhichHasDefinition) {
|
|
auto t =
|
|
makeNamedDecls("enum class foo;", "enum class foo { A };", Lang_CXX11);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceEnumTest,
|
|
EnumShouldBeEqualWithEnumWhichHasDefinition) {
|
|
auto t = makeNamedDecls("enum class foo { A };", "enum class foo { A };",
|
|
Lang_CXX11);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceEnumTest, EnumsWithDifferentBody) {
|
|
auto t = makeNamedDecls("enum class foo { B };", "enum class foo { A };",
|
|
Lang_CXX11);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
struct StructuralEquivalenceTemplateTest : StructuralEquivalenceTest {};
|
|
|
|
TEST_F(StructuralEquivalenceTemplateTest, ExactlySameTemplates) {
|
|
auto t = makeNamedDecls("template <class T> struct foo;",
|
|
"template <class T> struct foo;", Lang_CXX03);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTemplateTest, DifferentTemplateArgName) {
|
|
auto t = makeNamedDecls("template <class T> struct foo;",
|
|
"template <class U> struct foo;", Lang_CXX03);
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTemplateTest, DifferentTemplateArgKind) {
|
|
auto t = makeNamedDecls("template <class T> struct foo;",
|
|
"template <int T> struct foo;", Lang_CXX03);
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTemplateTest, ExplicitBoolSame) {
|
|
auto Decls = makeNamedDecls(
|
|
"template <bool b> struct foo {explicit(b) foo(int);};",
|
|
"template <bool b> struct foo {explicit(b) foo(int);};", Lang_CXX20);
|
|
CXXConstructorDecl *First = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<0>(Decls), cxxConstructorDecl(hasName("foo<b>")));
|
|
CXXConstructorDecl *Second = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<1>(Decls), cxxConstructorDecl(hasName("foo<b>")));
|
|
EXPECT_TRUE(testStructuralMatch(First, Second));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTemplateTest, ExplicitBoolDifference) {
|
|
auto Decls = makeNamedDecls(
|
|
"template <bool b> struct foo {explicit(b) foo(int);};",
|
|
"template <bool b> struct foo {explicit(!b) foo(int);};", Lang_CXX20);
|
|
CXXConstructorDecl *First = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<0>(Decls), cxxConstructorDecl(hasName("foo<b>")));
|
|
CXXConstructorDecl *Second = FirstDeclMatcher<CXXConstructorDecl>().match(
|
|
get<1>(Decls), cxxConstructorDecl(hasName("foo<b>")));
|
|
EXPECT_FALSE(testStructuralMatch(First, Second));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTemplateTest,
|
|
TemplateVsSubstTemplateTemplateParmInArgEq) {
|
|
auto t = makeDecls<ClassTemplateSpecializationDecl>(
|
|
R"(
|
|
template <typename P1> class Arg { };
|
|
template <template <typename PP1> class P1> class Primary { };
|
|
|
|
void f() {
|
|
// Make specialization with simple template.
|
|
Primary <Arg> A;
|
|
}
|
|
)",
|
|
R"(
|
|
template <typename P1> class Arg { };
|
|
template <template <typename PP1> class P1> class Primary { };
|
|
|
|
template <template <typename PP1> class P1> class Templ {
|
|
void f() {
|
|
// Make specialization with substituted template template param.
|
|
Primary <P1> A;
|
|
};
|
|
};
|
|
|
|
// Instantiate with substitution Arg into P1.
|
|
template class Templ <Arg>;
|
|
)",
|
|
Lang_CXX03, classTemplateSpecializationDecl(hasName("Primary")));
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceTemplateTest,
|
|
TemplateVsSubstTemplateTemplateParmInArgNotEq) {
|
|
auto t = makeDecls<ClassTemplateSpecializationDecl>(
|
|
R"(
|
|
template <typename P1> class Arg { };
|
|
template <template <typename PP1> class P1> class Primary { };
|
|
|
|
void f() {
|
|
// Make specialization with simple template.
|
|
Primary <Arg> A;
|
|
}
|
|
)",
|
|
R"(
|
|
// Arg is different from the other, this should cause non-equivalence.
|
|
template <typename P1> class Arg { int X; };
|
|
template <template <typename PP1> class P1> class Primary { };
|
|
|
|
template <template <typename PP1> class P1> class Templ {
|
|
void f() {
|
|
// Make specialization with substituted template template param.
|
|
Primary <P1> A;
|
|
};
|
|
};
|
|
|
|
// Instantiate with substitution Arg into P1.
|
|
template class Templ <Arg>;
|
|
)",
|
|
Lang_CXX03, classTemplateSpecializationDecl(hasName("Primary")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
struct StructuralEquivalenceDependentTemplateArgsTest
|
|
: StructuralEquivalenceTemplateTest {};
|
|
|
|
TEST_F(StructuralEquivalenceDependentTemplateArgsTest,
|
|
SameStructsInDependentArgs) {
|
|
std::string Code =
|
|
R"(
|
|
template <typename>
|
|
struct S1;
|
|
|
|
template <typename>
|
|
struct enable_if;
|
|
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S1<T>>::type>
|
|
void f();
|
|
};
|
|
)";
|
|
auto t = makeDecls<FunctionTemplateDecl>(Code, Code, Lang_CXX11,
|
|
functionTemplateDecl(hasName("f")));
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceDependentTemplateArgsTest,
|
|
DifferentStructsInDependentArgs) {
|
|
std::string Code =
|
|
R"(
|
|
template <typename>
|
|
struct S1;
|
|
|
|
template <typename>
|
|
struct S2;
|
|
|
|
template <typename>
|
|
struct enable_if;
|
|
)";
|
|
auto t = makeDecls<FunctionTemplateDecl>(Code + R"(
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S1<T>>::type>
|
|
void f();
|
|
};
|
|
)",
|
|
Code + R"(
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S2<T>>::type>
|
|
void f();
|
|
};
|
|
)",
|
|
Lang_CXX11,
|
|
functionTemplateDecl(hasName("f")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceDependentTemplateArgsTest,
|
|
SameStructsInDependentScopeDeclRefExpr) {
|
|
std::string Code =
|
|
R"(
|
|
template <typename>
|
|
struct S1;
|
|
|
|
template <bool>
|
|
struct enable_if;
|
|
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S1<T>::value>::type>
|
|
void f(); // DependentScopeDeclRefExpr:^^^^^^^^^^^^
|
|
};
|
|
)";
|
|
auto t = makeDecls<FunctionTemplateDecl>(Code, Code, Lang_CXX11,
|
|
functionTemplateDecl(hasName("f")));
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceDependentTemplateArgsTest,
|
|
DifferentStructsInDependentScopeDeclRefExpr) {
|
|
std::string Code =
|
|
R"(
|
|
template <typename>
|
|
struct S1;
|
|
|
|
template <typename>
|
|
struct S2;
|
|
|
|
template <bool>
|
|
struct enable_if;
|
|
)";
|
|
auto t = makeDecls<FunctionTemplateDecl>(Code + R"(
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S1<T>::value>::type>
|
|
void f(); // DependentScopeDeclRefExpr:^^^^^^^^^^^^
|
|
};
|
|
)",
|
|
Code + R"(
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S2<T>::value>::type>
|
|
void f();
|
|
};
|
|
)",
|
|
Lang_CXX03,
|
|
functionTemplateDecl(hasName("f")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceDependentTemplateArgsTest,
|
|
DifferentValueInDependentScopeDeclRefExpr) {
|
|
std::string Code =
|
|
R"(
|
|
template <typename>
|
|
struct S1;
|
|
|
|
template <bool>
|
|
struct enable_if;
|
|
)";
|
|
auto t = makeDecls<FunctionTemplateDecl>(Code + R"(
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S1<T>::value1>::type>
|
|
void f(); // DependentScopeDeclRefExpr:^^^^^^^^^^^^
|
|
};
|
|
)",
|
|
Code + R"(
|
|
struct S
|
|
{
|
|
template <typename T, typename enable_if<S1<T>::value2>::type>
|
|
void f();
|
|
};
|
|
)",
|
|
Lang_CXX03,
|
|
functionTemplateDecl(hasName("f")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(
|
|
StructuralEquivalenceTemplateTest,
|
|
ClassTemplSpecWithQualifiedAndNonQualifiedTypeArgsShouldBeEqual) {
|
|
auto t = makeDecls<ClassTemplateSpecializationDecl>(
|
|
R"(
|
|
template <class T> struct Primary {};
|
|
namespace N {
|
|
struct Arg;
|
|
}
|
|
// Explicit instantiation with qualified name.
|
|
template struct Primary<N::Arg>;
|
|
)",
|
|
R"(
|
|
template <class T> struct Primary {};
|
|
namespace N {
|
|
struct Arg;
|
|
}
|
|
using namespace N;
|
|
// Explicit instantiation with UNqualified name.
|
|
template struct Primary<Arg>;
|
|
)",
|
|
Lang_CXX03, classTemplateSpecializationDecl(hasName("Primary")));
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(
|
|
StructuralEquivalenceTemplateTest,
|
|
ClassTemplSpecWithInequivalentQualifiedAndNonQualifiedTypeArgs) {
|
|
auto t = makeDecls<ClassTemplateSpecializationDecl>(
|
|
R"(
|
|
template <class T> struct Primary {};
|
|
namespace N {
|
|
struct Arg { int a; };
|
|
}
|
|
// Explicit instantiation with qualified name.
|
|
template struct Primary<N::Arg>;
|
|
)",
|
|
R"(
|
|
template <class T> struct Primary {};
|
|
namespace N {
|
|
// This struct is not equivalent with the other in the prev TU.
|
|
struct Arg { double b; }; // -- Field mismatch.
|
|
}
|
|
using namespace N;
|
|
// Explicit instantiation with UNqualified name.
|
|
template struct Primary<Arg>;
|
|
)",
|
|
Lang_CXX03, classTemplateSpecializationDecl(hasName("Primary")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(
|
|
StructuralEquivalenceTemplateTest,
|
|
ClassTemplSpecWithQualifiedAndNonQualifiedTemplArgsShouldBeEqual) {
|
|
auto t = makeDecls<ClassTemplateSpecializationDecl>(
|
|
R"(
|
|
template <template <class> class T> struct Primary {};
|
|
namespace N {
|
|
template <class T> struct Arg;
|
|
}
|
|
// Explicit instantiation with qualified name.
|
|
template struct Primary<N::Arg>;
|
|
)",
|
|
R"(
|
|
template <template <class> class T> struct Primary {};
|
|
namespace N {
|
|
template <class T> struct Arg;
|
|
}
|
|
using namespace N;
|
|
// Explicit instantiation with UNqualified name.
|
|
template struct Primary<Arg>;
|
|
)",
|
|
Lang_CXX03, classTemplateSpecializationDecl(hasName("Primary")));
|
|
EXPECT_TRUE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(
|
|
StructuralEquivalenceTemplateTest,
|
|
ClassTemplSpecWithInequivalentQualifiedAndNonQualifiedTemplArgs) {
|
|
auto t = makeDecls<ClassTemplateSpecializationDecl>(
|
|
R"(
|
|
template <template <class> class T> struct Primary {};
|
|
namespace N {
|
|
template <class T> struct Arg { int a; };
|
|
}
|
|
// Explicit instantiation with qualified name.
|
|
template struct Primary<N::Arg>;
|
|
)",
|
|
R"(
|
|
template <template <class> class T> struct Primary {};
|
|
namespace N {
|
|
// This template is not equivalent with the other in the prev TU.
|
|
template <class T> struct Arg { double b; }; // -- Field mismatch.
|
|
}
|
|
using namespace N;
|
|
// Explicit instantiation with UNqualified name.
|
|
template struct Primary<Arg>;
|
|
)",
|
|
Lang_CXX03, classTemplateSpecializationDecl(hasName("Primary")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
|
|
TEST_F(
|
|
StructuralEquivalenceTemplateTest,
|
|
ClassTemplSpecWithInequivalentShadowedTemplArg) {
|
|
auto t = makeDecls<ClassTemplateSpecializationDecl>(
|
|
R"(
|
|
template <template <class> class T> struct Primary {};
|
|
template <class T> struct Arg { int a; };
|
|
// Explicit instantiation with ::Arg
|
|
template struct Primary<Arg>;
|
|
)",
|
|
R"(
|
|
template <template <class> class T> struct Primary {};
|
|
template <class T> struct Arg { int a; };
|
|
namespace N {
|
|
// This template is not equivalent with the other in the global scope.
|
|
template <class T> struct Arg { double b; }; // -- Field mismatch.
|
|
// Explicit instantiation with N::Arg which shadows ::Arg
|
|
template struct Primary<Arg>;
|
|
}
|
|
)",
|
|
Lang_CXX03, classTemplateSpecializationDecl(hasName("Primary")));
|
|
EXPECT_FALSE(testStructuralMatch(t));
|
|
}
|
|
struct StructuralEquivalenceCacheTest : public StructuralEquivalenceTest {
|
|
llvm::DenseSet<std::pair<Decl *, Decl *>> NonEquivalentDecls;
|
|
|
|
template <typename NodeType, typename MatcherType>
|
|
std::pair<NodeType *, NodeType *>
|
|
findDeclPair(std::tuple<TranslationUnitDecl *, TranslationUnitDecl *> TU,
|
|
MatcherType M) {
|
|
NodeType *D0 = FirstDeclMatcher<NodeType>().match(get<0>(TU), M);
|
|
NodeType *D1 = FirstDeclMatcher<NodeType>().match(get<1>(TU), M);
|
|
return {D0, D1};
|
|
}
|
|
|
|
template <typename NodeType>
|
|
bool isInNonEqCache(std::pair<NodeType *, NodeType *> D) {
|
|
return NonEquivalentDecls.count(D) > 0;
|
|
}
|
|
};
|
|
|
|
TEST_F(StructuralEquivalenceCacheTest, SimpleNonEq) {
|
|
auto TU = makeTuDecls(
|
|
R"(
|
|
class A {};
|
|
class B {};
|
|
void x(A, A);
|
|
)",
|
|
R"(
|
|
class A {};
|
|
class B {};
|
|
void x(A, B);
|
|
)",
|
|
Lang_CXX03);
|
|
|
|
StructuralEquivalenceContext Ctx(
|
|
get<0>(TU)->getASTContext(), get<1>(TU)->getASTContext(),
|
|
NonEquivalentDecls, StructuralEquivalenceKind::Default, false, false);
|
|
|
|
auto X = findDeclPair<FunctionDecl>(TU, functionDecl(hasName("x")));
|
|
EXPECT_FALSE(Ctx.IsEquivalent(X.first, X.second));
|
|
|
|
EXPECT_FALSE(isInNonEqCache(findDeclPair<CXXRecordDecl>(
|
|
TU, cxxRecordDecl(hasName("A"), unless(isImplicit())))));
|
|
EXPECT_FALSE(isInNonEqCache(findDeclPair<CXXRecordDecl>(
|
|
TU, cxxRecordDecl(hasName("B"), unless(isImplicit())))));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCacheTest, SpecialNonEq) {
|
|
auto TU = makeTuDecls(
|
|
R"(
|
|
class A {};
|
|
class B { int i; };
|
|
void x(A *);
|
|
void y(A *);
|
|
class C {
|
|
friend void x(A *);
|
|
friend void y(A *);
|
|
};
|
|
)",
|
|
R"(
|
|
class A {};
|
|
class B { int i; };
|
|
void x(A *);
|
|
void y(B *);
|
|
class C {
|
|
friend void x(A *);
|
|
friend void y(B *);
|
|
};
|
|
)",
|
|
Lang_CXX03);
|
|
|
|
StructuralEquivalenceContext Ctx(
|
|
get<0>(TU)->getASTContext(), get<1>(TU)->getASTContext(),
|
|
NonEquivalentDecls, StructuralEquivalenceKind::Default, false, false);
|
|
|
|
auto C = findDeclPair<CXXRecordDecl>(
|
|
TU, cxxRecordDecl(hasName("C"), unless(isImplicit())));
|
|
EXPECT_FALSE(Ctx.IsEquivalent(C.first, C.second));
|
|
|
|
EXPECT_FALSE(isInNonEqCache(C));
|
|
EXPECT_FALSE(isInNonEqCache(findDeclPair<CXXRecordDecl>(
|
|
TU, cxxRecordDecl(hasName("A"), unless(isImplicit())))));
|
|
EXPECT_FALSE(isInNonEqCache(findDeclPair<CXXRecordDecl>(
|
|
TU, cxxRecordDecl(hasName("B"), unless(isImplicit())))));
|
|
EXPECT_FALSE(isInNonEqCache(
|
|
findDeclPair<FunctionDecl>(TU, functionDecl(hasName("x")))));
|
|
EXPECT_FALSE(isInNonEqCache(
|
|
findDeclPair<FunctionDecl>(TU, functionDecl(hasName("y")))));
|
|
}
|
|
|
|
TEST_F(StructuralEquivalenceCacheTest, Cycle) {
|
|
auto TU = makeTuDecls(
|
|
R"(
|
|
class C;
|
|
class A { C *c; };
|
|
void x(A *);
|
|
class C {
|
|
friend void x(A *);
|
|
};
|
|
)",
|
|
R"(
|
|
class C;
|
|
class A { C *c; };
|
|
void x(A *);
|
|
class C {
|
|
friend void x(A *);
|
|
};
|
|
)",
|
|
Lang_CXX03);
|
|
|
|
StructuralEquivalenceContext Ctx(
|
|
get<0>(TU)->getASTContext(), get<1>(TU)->getASTContext(),
|
|
NonEquivalentDecls, StructuralEquivalenceKind::Default, false, false);
|
|
|
|
auto C = findDeclPair<CXXRecordDecl>(
|
|
TU, cxxRecordDecl(hasName("C"), unless(isImplicit())));
|
|
EXPECT_TRUE(Ctx.IsEquivalent(C.first, C.second));
|
|
|
|
EXPECT_FALSE(isInNonEqCache(C));
|
|
EXPECT_FALSE(isInNonEqCache(findDeclPair<CXXRecordDecl>(
|
|
TU, cxxRecordDecl(hasName("A"), unless(isImplicit())))));
|
|
EXPECT_FALSE(isInNonEqCache(
|
|
findDeclPair<FunctionDecl>(TU, functionDecl(hasName("x")))));
|
|
}
|
|
|
|
} // end namespace ast_matchers
|
|
} // end namespace clang
|