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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
// unittests/ASTMatchers/ASTMatchersInternalTest.cpp - AST matcher unit tests //
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "ASTMatchersTest.h"
#include "clang/AST/PrettyPrinter.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Support/Host.h"
#include "gtest/gtest.h"
namespace clang {
namespace ast_matchers {
#if GTEST_HAS_DEATH_TEST
TEST(HasNameDeathTest, DiesOnEmptyName) {
ASSERT_DEBUG_DEATH({
DeclarationMatcher HasEmptyName = recordDecl(hasName(""));
EXPECT_TRUE(notMatches("class X {};", HasEmptyName));
}, "");
}
TEST(HasNameDeathTest, DiesOnEmptyPattern) {
ASSERT_DEBUG_DEATH({
DeclarationMatcher HasEmptyName = recordDecl(matchesName(""));
EXPECT_TRUE(notMatches("class X {};", HasEmptyName));
}, "");
}
TEST(IsDerivedFromDeathTest, DiesOnEmptyBaseName) {
ASSERT_DEBUG_DEATH({
DeclarationMatcher IsDerivedFromEmpty = cxxRecordDecl(isDerivedFrom(""));
EXPECT_TRUE(notMatches("class X {};", IsDerivedFromEmpty));
}, "");
}
#endif
TEST(ConstructVariadic, MismatchedTypes_Regression) {
EXPECT_TRUE(
matches("const int a = 0;",
internal::DynTypedMatcher::constructVariadic(
internal::DynTypedMatcher::VO_AnyOf,
ast_type_traits::ASTNodeKind::getFromNodeKind<QualType>(),
{isConstQualified(), arrayType()})
.convertTo<QualType>()));
}
// For testing AST_MATCHER_P().
AST_MATCHER_P(Decl, just, internal::Matcher<Decl>, AMatcher) {
// Make sure all special variables are used: node, match_finder,
// bound_nodes_builder, and the parameter named 'AMatcher'.
return AMatcher.matches(Node, Finder, Builder);
}
TEST(AstMatcherPMacro, Works) {
DeclarationMatcher HasClassB = just(has(recordDecl(hasName("B")).bind("b")));
EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };",
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };",
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("a")));
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };",
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
}
AST_POLYMORPHIC_MATCHER_P(polymorphicHas,
AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt),
internal::Matcher<Decl>, AMatcher) {
return Finder->matchesChildOf(
Node, AMatcher, Builder,
ASTMatchFinder::TK_IgnoreImplicitCastsAndParentheses,
ASTMatchFinder::BK_First);
}
TEST(AstPolymorphicMatcherPMacro, Works) {
DeclarationMatcher HasClassB =
polymorphicHas(recordDecl(hasName("B")).bind("b"));
EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };",
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };",
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("a")));
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };",
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
StatementMatcher StatementHasClassB =
polymorphicHas(recordDecl(hasName("B")));
EXPECT_TRUE(matches("void x() { class B {}; }", StatementHasClassB));
}
TEST(MatchFinder, CheckProfiling) {
MatchFinder::MatchFinderOptions Options;
llvm::StringMap<llvm::TimeRecord> Records;
Options.CheckProfiling.emplace(Records);
MatchFinder Finder(std::move(Options));
struct NamedCallback : public MatchFinder::MatchCallback {
void run(const MatchFinder::MatchResult &Result) override {}
StringRef getID() const override { return "MyID"; }
} Callback;
Finder.addMatcher(decl(), &Callback);
std::unique_ptr<FrontendActionFactory> Factory(
newFrontendActionFactory(&Finder));
ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;"));
EXPECT_EQ(1u, Records.size());
EXPECT_EQ("MyID", Records.begin()->getKey());
}
class VerifyStartOfTranslationUnit : public MatchFinder::MatchCallback {
public:
VerifyStartOfTranslationUnit() : Called(false) {}
void run(const MatchFinder::MatchResult &Result) override {
EXPECT_TRUE(Called);
}
void onStartOfTranslationUnit() override { Called = true; }
bool Called;
};
TEST(MatchFinder, InterceptsStartOfTranslationUnit) {
MatchFinder Finder;
VerifyStartOfTranslationUnit VerifyCallback;
Finder.addMatcher(decl(), &VerifyCallback);
std::unique_ptr<FrontendActionFactory> Factory(
newFrontendActionFactory(&Finder));
ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;"));
EXPECT_TRUE(VerifyCallback.Called);
VerifyCallback.Called = false;
std::unique_ptr<ASTUnit> AST(tooling::buildASTFromCode("int x;"));
ASSERT_TRUE(AST.get());
Finder.matchAST(AST->getASTContext());
EXPECT_TRUE(VerifyCallback.Called);
}
class VerifyEndOfTranslationUnit : public MatchFinder::MatchCallback {
public:
VerifyEndOfTranslationUnit() : Called(false) {}
void run(const MatchFinder::MatchResult &Result) override {
EXPECT_FALSE(Called);
}
void onEndOfTranslationUnit() override { Called = true; }
bool Called;
};
TEST(MatchFinder, InterceptsEndOfTranslationUnit) {
MatchFinder Finder;
VerifyEndOfTranslationUnit VerifyCallback;
Finder.addMatcher(decl(), &VerifyCallback);
std::unique_ptr<FrontendActionFactory> Factory(
newFrontendActionFactory(&Finder));
ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;"));
EXPECT_TRUE(VerifyCallback.Called);
VerifyCallback.Called = false;
std::unique_ptr<ASTUnit> AST(tooling::buildASTFromCode("int x;"));
ASSERT_TRUE(AST.get());
Finder.matchAST(AST->getASTContext());
EXPECT_TRUE(VerifyCallback.Called);
}
TEST(Matcher, matchOverEntireASTContext) {
std::unique_ptr<ASTUnit> AST =
clang::tooling::buildASTFromCode("struct { int *foo; };");
ASSERT_TRUE(AST.get());
auto PT = selectFirst<PointerType>(
"x", match(pointerType().bind("x"), AST->getASTContext()));
EXPECT_NE(nullptr, PT);
}
TEST(IsInlineMatcher, IsInline) {
EXPECT_TRUE(matches("void g(); inline void f();",
functionDecl(isInline(), hasName("f"))));
EXPECT_TRUE(matches("namespace n { inline namespace m {} }",
namespaceDecl(isInline(), hasName("m"))));
}
// FIXME: Figure out how to specify paths so the following tests pass on
// Windows.
#ifndef _WIN32
TEST(Matcher, IsExpansionInMainFileMatcher) {
EXPECT_TRUE(matches("class X {};",
recordDecl(hasName("X"), isExpansionInMainFile())));
EXPECT_TRUE(notMatches("", recordDecl(isExpansionInMainFile())));
FileContentMappings M;
M.push_back(std::make_pair("/other", "class X {};"));
EXPECT_TRUE(matchesConditionally("#include <other>\n",
recordDecl(isExpansionInMainFile()), false,
"-isystem/", M));
}
TEST(Matcher, IsExpansionInSystemHeader) {
FileContentMappings M;
M.push_back(std::make_pair("/other", "class X {};"));
EXPECT_TRUE(matchesConditionally(
"#include \"other\"\n", recordDecl(isExpansionInSystemHeader()), true,
"-isystem/", M));
EXPECT_TRUE(matchesConditionally("#include \"other\"\n",
recordDecl(isExpansionInSystemHeader()),
false, "-I/", M));
EXPECT_TRUE(notMatches("class X {};",
recordDecl(isExpansionInSystemHeader())));
EXPECT_TRUE(notMatches("", recordDecl(isExpansionInSystemHeader())));
}
TEST(Matcher, IsExpansionInFileMatching) {
FileContentMappings M;
M.push_back(std::make_pair("/foo", "class A {};"));
M.push_back(std::make_pair("/bar", "class B {};"));
EXPECT_TRUE(matchesConditionally(
"#include <foo>\n"
"#include <bar>\n"
"class X {};",
recordDecl(isExpansionInFileMatching("b.*"), hasName("B")), true,
"-isystem/", M));
EXPECT_TRUE(matchesConditionally(
"#include <foo>\n"
"#include <bar>\n"
"class X {};",
recordDecl(isExpansionInFileMatching("f.*"), hasName("X")), false,
"-isystem/", M));
}
#endif // _WIN32
} // end namespace ast_matchers
} // end namespace clang
|
