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
|
//===---- UsingInserterTest.cpp - clang-tidy ----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../clang-tidy/utils/UsingInserter.h"
#include "ClangTidyTest.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "gtest/gtest.h"
namespace clang {
namespace tidy {
namespace utils {
// Replace all function calls with calls to foo::func. Inserts using
// declarations as necessary. This checker is for testing only. It
// can only run on one test case (e.g. wih one SourceManager).
class InsertUsingCheck : public clang::tidy::ClangTidyCheck {
public:
InsertUsingCheck(StringRef Name, ClangTidyContext *Context)
:ClangTidyCheck(Name, Context) {}
void registerMatchers(clang::ast_matchers::MatchFinder *Finder) override {
Finder->addMatcher(clang::ast_matchers::callExpr().bind("foo"), this);
}
void
check(const clang::ast_matchers::MatchFinder::MatchResult &Result) override {
if (!Inserter)
Inserter.reset(new UsingInserter(*Result.SourceManager));
const auto *Call = Result.Nodes.getNodeAs<clang::CallExpr>("foo");
assert(Call != nullptr && "Did not find node \"foo\"");
auto Hint =
Inserter->createUsingDeclaration(*Result.Context, *Call, "::foo::func");
if (Hint.hasValue())
diag(Call->getBeginLoc(), "Fix for testing") << Hint.getValue();
diag(Call->getBeginLoc(), "insert call")
<< clang::FixItHint::CreateReplacement(
Call->getCallee()->getSourceRange(),
Inserter->getShortName(*Result.Context, *Call, "::foo::func"));
}
private:
std::unique_ptr<UsingInserter> Inserter;
};
template <typename Check>
std::string runChecker(StringRef Code, unsigned ExpectedWarningCount) {
std::map<StringRef, StringRef> AdditionalFileContents = {{"foo.h",
"namespace foo {\n"
"namespace bar {\n"
"}\n"
"void func() { }\n"
"}"}};
std::vector<ClangTidyError> errors;
std::string result =
test::runCheckOnCode<Check>(Code, &errors, "foo.cc", None,
ClangTidyOptions(), AdditionalFileContents);
EXPECT_EQ(ExpectedWarningCount, errors.size());
return result;
}
TEST(UsingInserterTest, ReusesExisting) {
EXPECT_EQ("#include \"foo.h\"\n"
"namespace {"
"using ::foo::func;\n"
"void f() { func(); }"
"}",
runChecker<InsertUsingCheck>("#include \"foo.h\"\n"
"namespace {"
"using ::foo::func;\n"
"void f() { f(); }"
"}",
1));
}
TEST(UsingInserterTest, ReusesExistingGlobal) {
EXPECT_EQ("#include \"foo.h\"\n"
"using ::foo::func;\n"
"namespace {"
"void f() { func(); }"
"}",
runChecker<InsertUsingCheck>("#include \"foo.h\"\n"
"using ::foo::func;\n"
"namespace {"
"void f() { f(); }"
"}",
1));
}
TEST(UsingInserterTest, AvoidsConflict) {
EXPECT_EQ("#include \"foo.h\"\n"
"namespace {"
"void f() { int func; ::foo::func(); }"
"}",
runChecker<InsertUsingCheck>("#include \"foo.h\"\n"
"namespace {"
"void f() { int func; f(); }"
"}",
1));
}
} // namespace utils
} // namespace tidy
} // namespace clang
|
