1 //===--- AvoidDoWhileCheck.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 "AvoidDoWhileCheck.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::cppcoreguidelines {
16
AvoidDoWhileCheck(StringRef Name,ClangTidyContext * Context)17 AvoidDoWhileCheck::AvoidDoWhileCheck(StringRef Name, ClangTidyContext *Context)
18 : ClangTidyCheck(Name, Context),
19 IgnoreMacros(Options.getLocalOrGlobal("IgnoreMacros", false)) {}
20
storeOptions(ClangTidyOptions::OptionMap & Opts)21 void AvoidDoWhileCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
22 Options.store(Opts, "IgnoreMacros", IgnoreMacros);
23 }
24
registerMatchers(MatchFinder * Finder)25 void AvoidDoWhileCheck::registerMatchers(MatchFinder *Finder) {
26 Finder->addMatcher(doStmt().bind("x"), this);
27 }
28
check(const MatchFinder::MatchResult & Result)29 void AvoidDoWhileCheck::check(const MatchFinder::MatchResult &Result) {
30 if (const auto *MatchedDecl = Result.Nodes.getNodeAs<DoStmt>("x")) {
31 if (IgnoreMacros && MatchedDecl->getBeginLoc().isMacroID())
32 return;
33 diag(MatchedDecl->getBeginLoc(), "avoid do-while loops");
34 }
35 }
36
37 } // namespace clang::tidy::cppcoreguidelines
38