1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
//===- unittest/ASTMatchers/Dynamic/VariantValueTest.cpp - VariantValue 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/ASTMatchers/Dynamic/VariantValue.h"
#include "gtest/gtest.h"
namespace clang {
namespace ast_matchers {
namespace dynamic {
namespace {
TEST(VariantValueTest, Unsigned) {
const unsigned kUnsigned = 17;
VariantValue Value = kUnsigned;
EXPECT_TRUE(Value.isUnsigned());
EXPECT_EQ(kUnsigned, Value.getUnsigned());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isString());
EXPECT_FALSE(Value.isMatcher());
}
TEST(VariantValueTest, String) {
const StringRef kString = "string";
VariantValue Value = kString;
EXPECT_TRUE(Value.isString());
EXPECT_EQ(kString, Value.getString());
EXPECT_EQ("String", Value.getTypeAsString());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isMatcher());
}
TEST(VariantValueTest, DynTypedMatcher) {
VariantValue Value = VariantMatcher::SingleMatcher(stmt());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isString());
EXPECT_TRUE(Value.isMatcher());
EXPECT_FALSE(Value.getMatcher().hasTypedMatcher<Decl>());
EXPECT_TRUE(Value.getMatcher().hasTypedMatcher<UnaryOperator>());
EXPECT_EQ("Matcher<Stmt>", Value.getTypeAsString());
// Can only convert to compatible matchers.
Value = VariantMatcher::SingleMatcher(recordDecl());
EXPECT_TRUE(Value.isMatcher());
EXPECT_TRUE(Value.getMatcher().hasTypedMatcher<Decl>());
EXPECT_FALSE(Value.getMatcher().hasTypedMatcher<UnaryOperator>());
EXPECT_EQ("Matcher<Decl>", Value.getTypeAsString());
Value = VariantMatcher::SingleMatcher(ignoringImpCasts(expr()));
EXPECT_TRUE(Value.isMatcher());
EXPECT_FALSE(Value.getMatcher().hasTypedMatcher<Decl>());
EXPECT_FALSE(Value.getMatcher().hasTypedMatcher<Stmt>());
EXPECT_TRUE(Value.getMatcher().hasTypedMatcher<Expr>());
EXPECT_TRUE(Value.getMatcher().hasTypedMatcher<IntegerLiteral>());
EXPECT_FALSE(Value.getMatcher().hasTypedMatcher<GotoStmt>());
EXPECT_EQ("Matcher<Expr>", Value.getTypeAsString());
}
TEST(VariantValueTest, Assignment) {
VariantValue Value = StringRef("A");
EXPECT_TRUE(Value.isString());
EXPECT_EQ("A", Value.getString());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isBoolean());
EXPECT_FALSE(Value.isDouble());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isMatcher());
EXPECT_EQ("String", Value.getTypeAsString());
Value = VariantMatcher::SingleMatcher(recordDecl());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isBoolean());
EXPECT_FALSE(Value.isDouble());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isString());
EXPECT_TRUE(Value.isMatcher());
EXPECT_TRUE(Value.getMatcher().hasTypedMatcher<Decl>());
EXPECT_FALSE(Value.getMatcher().hasTypedMatcher<UnaryOperator>());
EXPECT_EQ("Matcher<Decl>", Value.getTypeAsString());
Value = true;
EXPECT_TRUE(Value.isBoolean());
EXPECT_EQ(true, Value.getBoolean());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isMatcher());
EXPECT_FALSE(Value.isString());
Value = 3.14;
EXPECT_TRUE(Value.isDouble());
EXPECT_EQ(3.14, Value.getDouble());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isBoolean());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isMatcher());
EXPECT_FALSE(Value.isString());
Value = 17;
EXPECT_TRUE(Value.isUnsigned());
EXPECT_EQ(17U, Value.getUnsigned());
EXPECT_FALSE(Value.isBoolean());
EXPECT_FALSE(Value.isDouble());
EXPECT_TRUE(Value.hasValue());
EXPECT_FALSE(Value.isMatcher());
EXPECT_FALSE(Value.isString());
Value = VariantValue();
EXPECT_FALSE(Value.hasValue());
EXPECT_FALSE(Value.isBoolean());
EXPECT_FALSE(Value.isDouble());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isString());
EXPECT_FALSE(Value.isMatcher());
EXPECT_EQ("Nothing", Value.getTypeAsString());
}
TEST(VariantValueTest, ImplicitBool) {
VariantValue Value;
bool IfTrue = false;
if (Value) {
IfTrue = true;
}
EXPECT_FALSE(IfTrue);
EXPECT_TRUE(!Value);
Value = StringRef();
IfTrue = false;
if (Value) {
IfTrue = true;
}
EXPECT_TRUE(IfTrue);
EXPECT_FALSE(!Value);
}
TEST(VariantValueTest, Matcher) {
EXPECT_TRUE(matches("class X {};", VariantValue(VariantMatcher::SingleMatcher(
recordDecl(hasName("X"))))
.getMatcher()
.getTypedMatcher<Decl>()));
EXPECT_TRUE(
matches("int x;", VariantValue(VariantMatcher::SingleMatcher(varDecl()))
.getMatcher()
.getTypedMatcher<Decl>()));
EXPECT_TRUE(
matches("int foo() { return 1 + 1; }",
VariantValue(VariantMatcher::SingleMatcher(functionDecl()))
.getMatcher()
.getTypedMatcher<Decl>()));
// Can't get the wrong matcher.
EXPECT_FALSE(VariantValue(VariantMatcher::SingleMatcher(varDecl()))
.getMatcher()
.hasTypedMatcher<Stmt>());
#if !defined(NDEBUG) && GTEST_HAS_DEATH_TEST
// Trying to get the wrong matcher fails an assertion in Matcher<T>. We don't
// do this test when building with MSVC because its debug C runtime prints the
// assertion failure message as a wide string, which gtest doesn't understand.
EXPECT_DEATH(VariantValue(VariantMatcher::SingleMatcher(varDecl()))
.getMatcher()
.getTypedMatcher<Stmt>(),
"hasTypedMatcher");
#endif
EXPECT_FALSE(matches(
"int x;", VariantValue(VariantMatcher::SingleMatcher(functionDecl()))
.getMatcher()
.getTypedMatcher<Decl>()));
EXPECT_FALSE(
matches("int foo() { return 1 + 1; }",
VariantValue(VariantMatcher::SingleMatcher(declRefExpr()))
.getMatcher()
.getTypedMatcher<Stmt>()));
}
} // end anonymous namespace
} // end namespace dynamic
} // end namespace ast_matchers
} // end namespace clang
|
