tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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ExplicitOperatorBoolChecker.cpp (1187B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 #include "ExplicitOperatorBoolChecker.h"
      6 #include "CustomMatchers.h"
      7 
      8 void ExplicitOperatorBoolChecker::registerMatchers(MatchFinder *AstMatcher) {
      9  AstMatcher->addMatcher(
     10      cxxMethodDecl(allOf(isFirstParty(), hasName("operator bool")))
     11          .bind("node"),
     12      this);
     13 }
     14 
     15 void ExplicitOperatorBoolChecker::check(
     16    const MatchFinder::MatchResult &Result) {
     17  const CXXConversionDecl *Method =
     18      Result.Nodes.getNodeAs<CXXConversionDecl>("node");
     19  const CXXRecordDecl *Clazz = Method->getParent();
     20 
     21  if (!Method->isExplicit() && !hasCustomAttribute<moz_implicit>(Method) &&
     22      !ASTIsInSystemHeader(Method->getASTContext(), *Method) &&
     23      isInterestingDeclForImplicitConversion(Method)) {
     24    diag(Method->getBeginLoc(), "bad implicit conversion operator for %0",
     25         DiagnosticIDs::Error)
     26        << Clazz;
     27    diag(Method->getBeginLoc(), "consider adding the explicit keyword to %0",
     28         DiagnosticIDs::Note)
     29        << "'operator bool'";
     30  }
     31 }