1 //===- unittest/AST/ASTTypeTraits.cpp - AST type traits unit tests ------===// 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 11 #include "clang/AST/ASTTypeTraits.h" 12 #include "gtest/gtest.h" 13 14 namespace clang { 15 namespace ast_type_traits { 16 17 TEST(ASTNodeKind, NoKind) { 18 EXPECT_FALSE(ASTNodeKind().isBaseOf(ASTNodeKind())); 19 EXPECT_FALSE(ASTNodeKind().isSame(ASTNodeKind())); 20 } 21 22 template <typename T> static ASTNodeKind DNT() { 23 return ASTNodeKind::getFromNodeKind<T>(); 24 } 25 26 TEST(ASTNodeKind, Bases) { 27 EXPECT_TRUE(DNT<Decl>().isBaseOf(DNT<VarDecl>())); 28 EXPECT_FALSE(DNT<Decl>().isSame(DNT<VarDecl>())); 29 EXPECT_FALSE(DNT<VarDecl>().isBaseOf(DNT<Decl>())); 30 31 EXPECT_TRUE(DNT<Decl>().isSame(DNT<Decl>())); 32 } 33 34 TEST(ASTNodeKind, SameBase) { 35 EXPECT_TRUE(DNT<Expr>().isBaseOf(DNT<CallExpr>())); 36 EXPECT_TRUE(DNT<Expr>().isBaseOf(DNT<BinaryOperator>())); 37 EXPECT_FALSE(DNT<CallExpr>().isBaseOf(DNT<BinaryOperator>())); 38 EXPECT_FALSE(DNT<BinaryOperator>().isBaseOf(DNT<CallExpr>())); 39 } 40 41 TEST(ASTNodeKind, DiffBase) { 42 EXPECT_FALSE(DNT<Expr>().isBaseOf(DNT<ArrayType>())); 43 EXPECT_FALSE(DNT<QualType>().isBaseOf(DNT<FunctionDecl>())); 44 EXPECT_FALSE(DNT<Type>().isSame(DNT<QualType>())); 45 } 46 47 struct Foo {}; 48 49 TEST(ASTNodeKind, UnknownKind) { 50 // We can construct one, but it is nowhere in the hierarchy. 51 EXPECT_FALSE(DNT<Foo>().isSame(DNT<Foo>())); 52 } 53 54 TEST(ASTNodeKind, Name) { 55 EXPECT_EQ("Decl", DNT<Decl>().asStringRef()); 56 EXPECT_EQ("CallExpr", DNT<CallExpr>().asStringRef()); 57 EXPECT_EQ("ConstantArrayType", DNT<ConstantArrayType>().asStringRef()); 58 EXPECT_EQ("<None>", ASTNodeKind().asStringRef()); 59 } 60 61 } // namespace ast_type_traits 62 } // namespace clang 63
