1 //===- unittest/Tooling/QualTypeNameTest.cpp ------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Tooling/Core/QualTypeNames.h" 11 #include "TestVisitor.h" 12 using namespace clang; 13 14 namespace { 15 struct TypeNameVisitor : TestVisitor<TypeNameVisitor> { 16 llvm::StringMap<std::string> ExpectedQualTypeNames; 17 bool WithGlobalNsPrefix = false; 18 19 // ValueDecls are the least-derived decl with both a qualtype and a 20 // name. 21 bool traverseDecl(Decl *D) { 22 return true; // Always continue 23 } 24 25 bool VisitValueDecl(const ValueDecl *VD) { 26 std::string ExpectedName = 27 ExpectedQualTypeNames.lookup(VD->getNameAsString()); 28 if (ExpectedName != "") { 29 std::string ActualName = 30 TypeName::getFullyQualifiedName(VD->getType(), *Context, 31 WithGlobalNsPrefix); 32 if (ExpectedName != ActualName) { 33 // A custom message makes it much easier to see what declaration 34 // failed compared to EXPECT_EQ. 35 EXPECT_TRUE(false) << "Typename::getFullyQualifiedName failed for " 36 << VD->getQualifiedNameAsString() << std::endl 37 << " Actual: " << ActualName << std::endl 38 << " Exepcted: " << ExpectedName; 39 } 40 } 41 return true; 42 } 43 }; 44 45 // named namespaces inside anonymous namespaces 46 47 TEST(QualTypeNameTest, getFullyQualifiedName) { 48 TypeNameVisitor Visitor; 49 // Simple case to test the test framework itself. 50 Visitor.ExpectedQualTypeNames["CheckInt"] = "int"; 51 52 // Keeping the names of the variables whose types we check unique 53 // within the entire test--regardless of their own scope--makes it 54 // easier to diagnose test failures. 55 56 // Simple namespace qualifier 57 Visitor.ExpectedQualTypeNames["CheckA"] = "A::B::Class0"; 58 // Lookup up the enclosing scopes, then down another one. (These 59 // appear as elaborated type in the AST. In that case--even if 60 // policy.SuppressScope = 0--qual_type.getAsString(policy) only 61 // gives the name as it appears in the source, not the full name. 62 Visitor.ExpectedQualTypeNames["CheckB"] = "A::B::C::Class1"; 63 // Template parameter expansion. 64 Visitor.ExpectedQualTypeNames["CheckC"] = 65 "A::B::Template0<A::B::C::MyInt, A::B::AnotherClass>"; 66 // Recursive template parameter expansion. 67 Visitor.ExpectedQualTypeNames["CheckD"] = 68 "A::B::Template0<A::B::Template1<A::B::C::MyInt, A::B::AnotherClass>, " 69 "A::B::Template0<int, long> >"; 70 // Variadic Template expansion. 71 Visitor.ExpectedQualTypeNames["CheckE"] = 72 "A::Variadic<int, A::B::Template0<int, char>, " 73 "A::B::Template1<int, long>, A::B::C::MyInt>"; 74 // Using declarations should be fully expanded. 75 Visitor.ExpectedQualTypeNames["CheckF"] = "A::B::Class0"; 76 // Elements found within "using namespace foo;" should be fully 77 // expanded. 78 Visitor.ExpectedQualTypeNames["CheckG"] = "A::B::C::MyInt"; 79 // Type inside function 80 Visitor.ExpectedQualTypeNames["CheckH"] = "struct X"; 81 // Anonymous Namespaces 82 Visitor.ExpectedQualTypeNames["CheckI"] = "aClass"; 83 // Keyword inclusion with namespaces 84 Visitor.ExpectedQualTypeNames["CheckJ"] = "struct A::aStruct"; 85 // Anonymous Namespaces nested in named namespaces and vice-versa. 86 Visitor.ExpectedQualTypeNames["CheckK"] = "D::aStruct"; 87 // Namespace alias 88 Visitor.ExpectedQualTypeNames["CheckL"] = "A::B::C::MyInt"; 89 Visitor.ExpectedQualTypeNames["non_dependent_type_var"] = 90 "Foo<X>::non_dependent_type"; 91 Visitor.ExpectedQualTypeNames["AnEnumVar"] = "EnumScopeClass::AnEnum"; 92 Visitor.ExpectedQualTypeNames["AliasTypeVal"] = "A::B::C::InnerAlias<int>"; 93 Visitor.ExpectedQualTypeNames["CheckM"] = "const A::B::Class0 *"; 94 Visitor.ExpectedQualTypeNames["CheckN"] = "const X *"; 95 Visitor.runOver( 96 "int CheckInt;\n" 97 "template <typename T>\n" 98 "class OuterTemplateClass { };\n" 99 "namespace A {\n" 100 " namespace B {\n" 101 " class Class0 { };\n" 102 " namespace C {\n" 103 " typedef int MyInt;" 104 " template <typename T>\n" 105 " using InnerAlias = OuterTemplateClass<T>;\n" 106 " InnerAlias<int> AliasTypeVal;\n" 107 " }\n" 108 " template<class X, class Y> class Template0;" 109 " template<class X, class Y> class Template1;" 110 " typedef B::Class0 AnotherClass;\n" 111 " void Function1(Template0<C::MyInt,\n" 112 " AnotherClass> CheckC);\n" 113 " void Function2(Template0<Template1<C::MyInt, AnotherClass>,\n" 114 " Template0<int, long> > CheckD);\n" 115 " void Function3(const B::Class0* CheckM);\n" 116 " }\n" 117 "template<typename... Values> class Variadic {};\n" 118 "Variadic<int, B::Template0<int, char>, " 119 " B::Template1<int, long>, " 120 " B::C::MyInt > CheckE;\n" 121 " namespace BC = B::C;\n" 122 " BC::MyInt CheckL;\n" 123 "}\n" 124 "using A::B::Class0;\n" 125 "void Function(Class0 CheckF);\n" 126 "using namespace A::B::C;\n" 127 "void Function(MyInt CheckG);\n" 128 "void f() {\n" 129 " struct X {} CheckH;\n" 130 "}\n" 131 "struct X;\n" 132 "void f(const ::X* CheckN) {}\n" 133 "namespace {\n" 134 " class aClass {};\n" 135 " aClass CheckI;\n" 136 "}\n" 137 "namespace A {\n" 138 " struct aStruct {} CheckJ;\n" 139 "}\n" 140 "namespace {\n" 141 " namespace D {\n" 142 " namespace {\n" 143 " class aStruct {};\n" 144 " aStruct CheckK;\n" 145 " }\n" 146 " }\n" 147 "}\n" 148 "template<class T> struct Foo {\n" 149 " typedef typename T::A dependent_type;\n" 150 " typedef int non_dependent_type;\n" 151 " dependent_type dependent_type_var;\n" 152 " non_dependent_type non_dependent_type_var;\n" 153 "};\n" 154 "struct X { typedef int A; };" 155 "Foo<X> var;" 156 "void F() {\n" 157 " var.dependent_type_var = 0;\n" 158 "var.non_dependent_type_var = 0;\n" 159 "}\n" 160 "class EnumScopeClass {\n" 161 "public:\n" 162 " enum AnEnum { ZERO, ONE };\n" 163 "};\n" 164 "EnumScopeClass::AnEnum AnEnumVar;\n", 165 TypeNameVisitor::Lang_CXX11 166 ); 167 168 TypeNameVisitor Complex; 169 Complex.ExpectedQualTypeNames["CheckTX"] = "B::TX"; 170 Complex.runOver( 171 "namespace A {" 172 " struct X {};" 173 "}" 174 "using A::X;" 175 "namespace fake_std {" 176 " template<class... Types > class tuple {};" 177 "}" 178 "namespace B {" 179 " using fake_std::tuple;" 180 " typedef tuple<X> TX;" 181 " TX CheckTX;" 182 " struct A { typedef int X; };" 183 "}"); 184 185 TypeNameVisitor GlobalNsPrefix; 186 GlobalNsPrefix.WithGlobalNsPrefix = true; 187 GlobalNsPrefix.ExpectedQualTypeNames["IntVal"] = "int"; 188 GlobalNsPrefix.ExpectedQualTypeNames["BoolVal"] = "bool"; 189 GlobalNsPrefix.ExpectedQualTypeNames["XVal"] = "::A::B::X"; 190 GlobalNsPrefix.ExpectedQualTypeNames["IntAliasVal"] = "::A::B::Alias<int>"; 191 GlobalNsPrefix.ExpectedQualTypeNames["ZVal"] = "::A::B::Y::Z"; 192 GlobalNsPrefix.ExpectedQualTypeNames["GlobalZVal"] = "::Z"; 193 GlobalNsPrefix.ExpectedQualTypeNames["CheckK"] = "D::aStruct"; 194 GlobalNsPrefix.runOver( 195 "namespace A {\n" 196 " namespace B {\n" 197 " int IntVal;\n" 198 " bool BoolVal;\n" 199 " struct X {};\n" 200 " X XVal;\n" 201 " template <typename T> class CCC { };\n" 202 " template <typename T>\n" 203 " using Alias = CCC<T>;\n" 204 " Alias<int> IntAliasVal;\n" 205 " struct Y { struct Z {}; };\n" 206 " Y::Z ZVal;\n" 207 " }\n" 208 "}\n" 209 "struct Z {};\n" 210 "Z GlobalZVal;\n" 211 "namespace {\n" 212 " namespace D {\n" 213 " namespace {\n" 214 " class aStruct {};\n" 215 " aStruct CheckK;\n" 216 " }\n" 217 " }\n" 218 "}\n" 219 ); 220 } 221 222 } // end anonymous namespace 223
