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 "MatchVerifier.h"
13 #include "gtest/gtest.h"
14
15 using namespace clang::ast_matchers;
16
17 namespace clang {
18 namespace ast_type_traits {
19
TEST(ASTNodeKind,NoKind)20 TEST(ASTNodeKind, NoKind) {
21 EXPECT_FALSE(ASTNodeKind().isBaseOf(ASTNodeKind()));
22 EXPECT_FALSE(ASTNodeKind().isSame(ASTNodeKind()));
23 }
24
DNT()25 template <typename T> static ASTNodeKind DNT() {
26 return ASTNodeKind::getFromNodeKind<T>();
27 }
28
TEST(ASTNodeKind,Bases)29 TEST(ASTNodeKind, Bases) {
30 EXPECT_TRUE(DNT<Decl>().isBaseOf(DNT<VarDecl>()));
31 EXPECT_FALSE(DNT<Decl>().isSame(DNT<VarDecl>()));
32 EXPECT_FALSE(DNT<VarDecl>().isBaseOf(DNT<Decl>()));
33
34 EXPECT_TRUE(DNT<Decl>().isSame(DNT<Decl>()));
35 }
36
TEST(ASTNodeKind,BaseDistances)37 TEST(ASTNodeKind, BaseDistances) {
38 unsigned Distance = 1;
39 EXPECT_TRUE(DNT<Expr>().isBaseOf(DNT<Expr>(), &Distance));
40 EXPECT_EQ(0u, Distance);
41
42 EXPECT_TRUE(DNT<Stmt>().isBaseOf(DNT<IfStmt>(), &Distance));
43 EXPECT_EQ(1u, Distance);
44
45 Distance = 3;
46 EXPECT_TRUE(DNT<DeclaratorDecl>().isBaseOf(DNT<ParmVarDecl>(), &Distance));
47 EXPECT_EQ(2u, Distance);
48 }
49
TEST(ASTNodeKind,SameBase)50 TEST(ASTNodeKind, SameBase) {
51 EXPECT_TRUE(DNT<Expr>().isBaseOf(DNT<CallExpr>()));
52 EXPECT_TRUE(DNT<Expr>().isBaseOf(DNT<BinaryOperator>()));
53 EXPECT_FALSE(DNT<CallExpr>().isBaseOf(DNT<BinaryOperator>()));
54 EXPECT_FALSE(DNT<BinaryOperator>().isBaseOf(DNT<CallExpr>()));
55 }
56
TEST(ASTNodeKind,DiffBase)57 TEST(ASTNodeKind, DiffBase) {
58 EXPECT_FALSE(DNT<Expr>().isBaseOf(DNT<ArrayType>()));
59 EXPECT_FALSE(DNT<QualType>().isBaseOf(DNT<FunctionDecl>()));
60 EXPECT_FALSE(DNT<Type>().isSame(DNT<QualType>()));
61 }
62
63 struct Foo {};
64
TEST(ASTNodeKind,UnknownKind)65 TEST(ASTNodeKind, UnknownKind) {
66 // We can construct one, but it is nowhere in the hierarchy.
67 EXPECT_FALSE(DNT<Foo>().isSame(DNT<Foo>()));
68 }
69
TEST(ASTNodeKind,Name)70 TEST(ASTNodeKind, Name) {
71 EXPECT_EQ("Decl", DNT<Decl>().asStringRef());
72 EXPECT_EQ("CallExpr", DNT<CallExpr>().asStringRef());
73 EXPECT_EQ("ConstantArrayType", DNT<ConstantArrayType>().asStringRef());
74 EXPECT_EQ("<None>", ASTNodeKind().asStringRef());
75 }
76
TEST(DynTypedNode,DeclSourceRange)77 TEST(DynTypedNode, DeclSourceRange) {
78 RangeVerifier<DynTypedNode> Verifier;
79 Verifier.expectRange(1, 1, 1, 11);
80 EXPECT_TRUE(Verifier.match("void f() {}", decl()));
81 }
82
TEST(DynTypedNode,StmtSourceRange)83 TEST(DynTypedNode, StmtSourceRange) {
84 RangeVerifier<DynTypedNode> Verifier;
85 Verifier.expectRange(1, 10, 1, 11);
86 EXPECT_TRUE(Verifier.match("void f() {}", stmt()));
87 }
88
TEST(DynTypedNode,TypeLocSourceRange)89 TEST(DynTypedNode, TypeLocSourceRange) {
90 RangeVerifier<DynTypedNode> Verifier;
91 Verifier.expectRange(1, 1, 1, 8);
92 EXPECT_TRUE(Verifier.match("void f() {}", typeLoc(loc(functionType()))));
93 }
94
TEST(DynTypedNode,NNSLocSourceRange)95 TEST(DynTypedNode, NNSLocSourceRange) {
96 RangeVerifier<DynTypedNode> Verifier;
97 Verifier.expectRange(1, 33, 1, 34);
98 EXPECT_TRUE(Verifier.match("namespace N { typedef void T; } N::T f() {}",
99 nestedNameSpecifierLoc()));
100 }
101
TEST(DynTypedNode,DeclDump)102 TEST(DynTypedNode, DeclDump) {
103 DumpVerifier Verifier;
104 Verifier.expectSubstring("FunctionDecl");
105 EXPECT_TRUE(Verifier.match("void f() {}", functionDecl()));
106 }
107
TEST(DynTypedNode,StmtDump)108 TEST(DynTypedNode, StmtDump) {
109 DumpVerifier Verifier;
110 Verifier.expectSubstring("CompoundStmt");
111 EXPECT_TRUE(Verifier.match("void f() {}", stmt()));
112 }
113
TEST(DynTypedNode,DeclPrint)114 TEST(DynTypedNode, DeclPrint) {
115 PrintVerifier Verifier;
116 Verifier.expectString("void f() {\n}\n\n");
117 EXPECT_TRUE(Verifier.match("void f() {}", functionDecl()));
118 }
119
TEST(DynTypedNode,StmtPrint)120 TEST(DynTypedNode, StmtPrint) {
121 PrintVerifier Verifier;
122 Verifier.expectString("{\n}\n");
123 EXPECT_TRUE(Verifier.match("void f() {}", stmt()));
124 }
125
126 } // namespace ast_type_traits
127 } // namespace clang
128