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35 lines
1.3 KiB
C++
35 lines
1.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "RefCountedCopyConstructorChecker.h"
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#include "CustomMatchers.h"
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void RefCountedCopyConstructorChecker::registerMatchers(MatchFinder* AstMatcher) {
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AstMatcher->addMatcher(
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cxxConstructExpr(
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hasDeclaration(cxxConstructorDecl(isCompilerProvidedCopyConstructor(),
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ofClass(hasRefCntMember()))))
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.bind("node"),
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this);
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}
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void RefCountedCopyConstructorChecker::check(
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const MatchFinder::MatchResult &Result) {
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const char* Error =
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"Invalid use of compiler-provided copy constructor on refcounted type";
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const char* Note =
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"The default copy constructor also copies the "
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"default mRefCnt property, leading to reference "
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"count imbalance issues. Please provide your own "
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"copy constructor which only copies the fields which "
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"need to be copied";
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// Everything we needed to know was checked in the matcher - we just report
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// the error here
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const CXXConstructExpr *E = Result.Nodes.getNodeAs<CXXConstructExpr>("node");
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diag(E->getLocation(), Error, DiagnosticIDs::Error);
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diag(E->getLocation(), Note, DiagnosticIDs::Note);
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}
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