1 //===--- NoIntToPtrCheck.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 "NoIntToPtrCheck.h" 10 #include "clang/AST/ASTContext.h" 11 #include "clang/ASTMatchers/ASTMatchFinder.h" 12 13 using namespace clang::ast_matchers; 14 15 namespace clang::tidy::performance { 16 registerMatchers(MatchFinder * Finder)17void NoIntToPtrCheck::registerMatchers(MatchFinder *Finder) { 18 Finder->addMatcher(castExpr(hasCastKind(CK_IntegralToPointer), 19 unless(hasSourceExpression(integerLiteral()))) 20 .bind("x"), 21 this); 22 } 23 check(const MatchFinder::MatchResult & Result)24void NoIntToPtrCheck::check(const MatchFinder::MatchResult &Result) { 25 const auto *MatchedCast = Result.Nodes.getNodeAs<CastExpr>("x"); 26 diag(MatchedCast->getBeginLoc(), 27 "integer to pointer cast pessimizes optimization opportunities"); 28 } 29 30 } // namespace clang::tidy::performance 31