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
|
//===- 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 {
using ast_matchers::internal::DynTypedMatcher;
using ast_matchers::internal::Matcher;
TEST(VariantValueTest, Unsigned) {
const unsigned kUnsigned = 17;
VariantValue Value = kUnsigned;
EXPECT_TRUE(Value.isUnsigned());
EXPECT_EQ(kUnsigned, Value.getUnsigned());
EXPECT_FALSE(Value.isString());
EXPECT_FALSE(Value.isMatcher());
}
TEST(VariantValueTest, String) {
const ::std::string kString = "string";
VariantValue Value = kString;
EXPECT_TRUE(Value.isString());
EXPECT_EQ(kString, Value.getString());
EXPECT_EQ("String", Value.getTypeAsString());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isMatcher());
}
TEST(VariantValueTest, DynTypedMatcher) {
VariantValue Value = VariantMatcher::SingleMatcher(stmt());
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 = std::string("A");
EXPECT_TRUE(Value.isString());
EXPECT_EQ("A", Value.getString());
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isMatcher());
EXPECT_EQ("String", Value.getTypeAsString());
Value = VariantMatcher::SingleMatcher(recordDecl());
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 = 17;
EXPECT_TRUE(Value.isUnsigned());
EXPECT_EQ(17U, Value.getUnsigned());
EXPECT_FALSE(Value.isMatcher());
EXPECT_FALSE(Value.isString());
Value = VariantValue();
EXPECT_FALSE(Value.isUnsigned());
EXPECT_FALSE(Value.isString());
EXPECT_FALSE(Value.isMatcher());
EXPECT_EQ("Nothing", Value.getTypeAsString());
}
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 && !defined(_MSC_VER)
// 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
|
