build/clang-plugin/NoAutoTypeChecker.cpp

   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 "NoAutoTypeChecker.h"
   6 #include "CustomMatchers.h"
   7
   8 void NoAutoTypeChecker::registerMatchers(MatchFinder *AstMatcher) {
   9   AstMatcher->addMatcher(varDecl(hasType(autoNonAutoableType())).bind("node"),
  10                          this);
  11 }
  12
  13 void NoAutoTypeChecker::check(const MatchFinder::MatchResult &Result) {
  14   const VarDecl *D = Result.Nodes.getNodeAs<VarDecl>("node");
  15
  16   diag(D->getLocation(), "Cannot use auto to declare a variable of type %0",
  17        DiagnosticIDs::Error)
  18       << D->getType();
  19   diag(D->getLocation(), "Please write out this type explicitly",
  20        DiagnosticIDs::Note);
  21 }