| 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 <string> |
| 15 | |
| 16 | using namespace clang::ast_matchers; |
| 17 | |
| 18 | namespace clang::tidy::zircon { |
| 19 | |
| 20 | namespace { |
| 21 | |
| 22 | AST_MATCHER_P(CXXRecordDecl, matchesAnyName, ArrayRef<StringRef>, Names) { |
| 23 | std::string QualifiedName = Node.getQualifiedNameAsString(); |
| 24 | return llvm::is_contained(Range: Names, Element: QualifiedName); |
| 25 | } |
| 26 | |
| 27 | } // namespace |
| 28 | |
| 29 | void TemporaryObjectsCheck::registerMatchers(MatchFinder *Finder) { |
| 30 | // Matcher for default constructors. |
| 31 | Finder->addMatcher( |
| 32 | NodeMatch: cxxTemporaryObjectExpr(hasDeclaration(InnerMatcher: cxxConstructorDecl(hasParent( |
| 33 | cxxRecordDecl(matchesAnyName(Names)))))) |
| 34 | .bind(ID: "temps"), |
| 35 | Action: this); |
| 36 | |
| 37 | // Matcher for user-defined constructors. |
| 38 | Finder->addMatcher( |
| 39 | NodeMatch: traverse(TK: TK_AsIs, |
| 40 | InnerMatcher: cxxConstructExpr(hasParent(cxxFunctionalCastExpr()), |
| 41 | hasDeclaration(InnerMatcher: cxxConstructorDecl(hasParent( |
| 42 | cxxRecordDecl(matchesAnyName(Names)))))) |
| 43 | .bind(ID: "temps")), |
| 44 | Action: this); |
| 45 | } |
| 46 | |
| 47 | void TemporaryObjectsCheck::check(const MatchFinder::MatchResult &Result) { |
| 48 | if (const auto *D = Result.Nodes.getNodeAs<CXXConstructExpr>(ID: "temps")) |
| 49 | diag(Loc: D->getLocation(), |
| 50 | Description: "creating a temporary object of type %q0 is prohibited") |
| 51 | << D->getConstructor()->getParent(); |
| 52 | } |
| 53 | |
| 54 | void TemporaryObjectsCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) { |
| 55 | Options.store(Options&: Opts, LocalName: "Names", Value: utils::options::serializeStringList(Strings: Names)); |
| 56 | } |
| 57 | |
| 58 | } // namespace clang::tidy::zircon |
| 59 |