clang-tools 10.0.0

TemporaryObjectsCheck.cpp
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1 //===--- TemporaryObjectsCheck.cpp - clang-tidy----------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "TemporaryObjectsCheck.h"
10 #include "../utils/OptionsUtils.h"
11 #include "clang/AST/ASTContext.h"
12 #include "clang/ASTMatchers/ASTMatchFinder.h"
13 #include "llvm/ADT/STLExtras.h"
14 #include "llvm/ADT/SmallVector.h"
15 #include <string>
16
17 using namespace clang::ast_matchers;
18
19 namespace clang {
20 namespace tidy {
21 namespace zircon {
22
23 AST_MATCHER_P(CXXRecordDecl, matchesAnyName, ArrayRef<std::string>, Names) {
24 std::string QualifiedName = Node.getQualifiedNameAsString();
25 return llvm::any_of(Names,
26 [&](StringRef Name) { return QualifiedName == Name; });
27 }
28
29 void TemporaryObjectsCheck::registerMatchers(MatchFinder *Finder) {
30 // Matcher for default constructors.
31 Finder->addMatcher(
32 cxxTemporaryObjectExpr(hasDeclaration(cxxConstructorDecl(hasParent(
33 cxxRecordDecl(matchesAnyName(Names))))))
34 .bind("temps"),
35 this);
36
37 // Matcher for user-defined constructors.
38 Finder->addMatcher(
39 cxxConstructExpr(hasParent(cxxFunctionalCastExpr()),
40 hasDeclaration(cxxConstructorDecl(
41 hasParent(cxxRecordDecl(matchesAnyName(Names))))))
42 .bind("temps"),
43 this);
44 }
45
46 void TemporaryObjectsCheck::check(const MatchFinder::MatchResult &Result) {
47 if (const auto *D = Result.Nodes.getNodeAs<CXXConstructExpr>("temps"))
48 diag(D->getLocation(),
49 "creating a temporary object of type %q0 is prohibited")
50 << D->getConstructor()->getParent();
51 }
52
53 void TemporaryObjectsCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
54 Options.store(Opts, "Names", utils::options::serializeStringList(Names));
55 }
56
57 } // namespace zircon
58 } // namespace tidy
59 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
clang::tidy::utils::options::serializeStringList
std::string serializeStringList(ArrayRef< std::string > Strings)
Serialize a sequence of names that can be parsed by parseStringList.
Definition: OptionsUtils.cpp:30
clang::tidy::zircon::AST_MATCHER_P
AST_MATCHER_P(CXXRecordDecl, matchesAnyName, ArrayRef< std::string >, Names)
Definition: TemporaryObjectsCheck.cpp:23
TemporaryObjectsCheck.h
Name
static constexpr llvm::StringLiteral Name
Definition: UppercaseLiteralSuffixCheck.cpp:27
clang::tidy::ClangTidyOptions::OptionMap
std::map< std::string, std::string > OptionMap
Definition: ClangTidyOptions.h:97
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27