| 1 | //===--- TemporaryObjectsCheck.cpp - clang-tidy----------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "TemporaryObjectsCheck.h" |
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| 10 | #include "../utils/OptionsUtils.h" |
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| 11 | #include "clang/AST/ASTContext.h" |
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| 12 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
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| 13 | #include "llvm/ADT/STLExtras.h" |
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| 14 | #include "llvm/ADT/SmallVector.h" |
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| 15 | #include <string> |
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| 16 | |
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| 17 | using namespace clang::ast_matchers; |
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| 18 | |
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| 19 | namespace clang::tidy::zircon { |
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| 20 | |
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| 21 | AST_MATCHER_P(CXXRecordDecl, matchesAnyName, ArrayRef<StringRef>, Names) { |
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| 22 | std::string QualifiedName = Node.getQualifiedNameAsString(); |
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| 23 | return llvm::is_contained(Range: Names, Element: QualifiedName); |
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| 24 | } |
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| 25 | |
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| 26 | void TemporaryObjectsCheck::registerMatchers(MatchFinder *Finder) { |
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| 27 | // Matcher for default constructors. |
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| 28 | Finder->addMatcher( |
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| 29 | NodeMatch: cxxTemporaryObjectExpr(hasDeclaration(InnerMatcher: cxxConstructorDecl(hasParent( |
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| 30 | cxxRecordDecl(matchesAnyName(Names)))))) |
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| 31 | .bind(ID: "temps" ), |
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| 32 | Action: this); |
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| 33 | |
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| 34 | // Matcher for user-defined constructors. |
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| 35 | Finder->addMatcher( |
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| 36 | NodeMatch: traverse(TK: TK_AsIs, |
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| 37 | InnerMatcher: cxxConstructExpr(hasParent(cxxFunctionalCastExpr()), |
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| 38 | hasDeclaration(InnerMatcher: cxxConstructorDecl(hasParent( |
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| 39 | cxxRecordDecl(matchesAnyName(Names)))))) |
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| 40 | .bind(ID: "temps" )), |
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| 41 | Action: this); |
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| 42 | } |
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| 43 | |
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| 44 | void TemporaryObjectsCheck::check(const MatchFinder::MatchResult &Result) { |
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| 45 | if (const auto *D = Result.Nodes.getNodeAs<CXXConstructExpr>(ID: "temps" )) |
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| 46 | diag(Loc: D->getLocation(), |
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| 47 | Description: "creating a temporary object of type %q0 is prohibited" ) |
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| 48 | << D->getConstructor()->getParent(); |
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| 49 | } |
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| 50 | |
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| 51 | void TemporaryObjectsCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) { |
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| 52 | Options.store(Options&: Opts, LocalName: "Names" , Value: utils::options::serializeStringList(Strings: Names)); |
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| 53 | } |
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| 54 | |
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| 55 | } // namespace clang::tidy::zircon |
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| 56 | |
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