| //===--- NoIntToPtrCheck.cpp - clang-tidy ---------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "NoIntToPtrCheck.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/ASTMatchers/ASTMatchFinder.h" |
| |
| using namespace clang::ast_matchers; |
| |
| namespace clang { |
| namespace tidy { |
| namespace performance { |
| |
| void NoIntToPtrCheck::registerMatchers(MatchFinder *Finder) { |
| Finder->addMatcher(castExpr(hasCastKind(CK_IntegralToPointer), |
| unless(hasSourceExpression(integerLiteral()))) |
| .bind("x"), |
| this); |
| } |
| |
| void NoIntToPtrCheck::check(const MatchFinder::MatchResult &Result) { |
| const auto *MatchedCast = Result.Nodes.getNodeAs<CastExpr>("x"); |
| diag(MatchedCast->getBeginLoc(), |
| "integer to pointer cast pessimizes optimization opportunities"); |
| } |
| |
| } // namespace performance |
| } // namespace tidy |
| } // namespace clang |