clang-tools 10.0.0

TerminatingContinueCheck.cpp
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1 //===--- TerminatingContinueCheck.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 "TerminatingContinueCheck.h"
10 #include "clang/AST/ASTContext.h"
11 #include "clang/ASTMatchers/ASTMatchFinder.h"
12 #include "clang/Lex/Lexer.h"
13 #include "clang/Tooling/FixIt.h"
14
15 using namespace clang::ast_matchers;
16
17 namespace clang {
18 namespace tidy {
19 namespace bugprone {
20
21 void TerminatingContinueCheck::registerMatchers(MatchFinder *Finder) {
22 const auto doWithFalse =
23 doStmt(hasCondition(ignoringImpCasts(
24 anyOf(cxxBoolLiteral(equals(false)), integerLiteral(equals(0)),
25 cxxNullPtrLiteralExpr(), gnuNullExpr()))),
26 equalsBoundNode("closestLoop"));
27
28 Finder->addMatcher(
29 continueStmt(hasAncestor(stmt(anyOf(forStmt(), whileStmt(),
30 cxxForRangeStmt(), doStmt()))
31 .bind("closestLoop")),
32 hasAncestor(doWithFalse))
33 .bind("continue"),
34 this);
35 }
36
37 void TerminatingContinueCheck::check(const MatchFinder::MatchResult &Result) {
38 const auto *ContStmt = Result.Nodes.getNodeAs<ContinueStmt>("continue");
39
40 auto Diag =
41 diag(ContStmt->getBeginLoc(),
42 "'continue' in loop with false condition is equivalent to 'break'")
43 << tooling::fixit::createReplacement(*ContStmt, "break");
44 }
45
46 } // namespace bugprone
47 } // namespace tidy
48 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
TerminatingContinueCheck.h