clang-tools  15.0.0git
NoIntToPtrCheck.cpp
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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 {
16 namespace tidy {
17 namespace performance {
18 
19 void NoIntToPtrCheck::registerMatchers(MatchFinder *Finder) {
20  Finder->addMatcher(castExpr(hasCastKind(CK_IntegralToPointer),
21  unless(hasSourceExpression(integerLiteral())))
22  .bind("x"),
23  this);
24 }
25 
26 void NoIntToPtrCheck::check(const MatchFinder::MatchResult &Result) {
27  const auto *MatchedCast = Result.Nodes.getNodeAs<CastExpr>("x");
28  diag(MatchedCast->getBeginLoc(),
29  "integer to pointer cast pessimizes optimization opportunities");
30 }
31 
32 } // namespace performance
33 } // namespace tidy
34 } // namespace clang
clang::clangd::check
bool check(llvm::StringRef File, llvm::Optional< Range > LineRange, const ThreadsafeFS &TFS, const ClangdLSPServer::Options &Opts, bool EnableCodeCompletion)
Definition: Check.cpp:273
NoIntToPtrCheck.h
clang::ast_matchers
Definition: AbseilMatcher.h:14
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27