43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
//===--- ThrowKeywordMissingCheck.cpp - clang-tidy-------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "ThrowKeywordMissingCheck.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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using namespace clang::ast_matchers;
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namespace clang::tidy::bugprone {
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void ThrowKeywordMissingCheck::registerMatchers(MatchFinder *Finder) {
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Finder->addMatcher(
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cxxConstructExpr(
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hasType(cxxRecordDecl(
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isSameOrDerivedFrom(matchesName("[Ee]xception|EXCEPTION")))),
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unless(anyOf(
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hasAncestor(
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stmt(anyOf(cxxThrowExpr(), callExpr(), returnStmt()))),
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hasAncestor(decl(anyOf(varDecl(), fieldDecl()))),
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hasAncestor(expr(cxxNewExpr(hasAnyPlacementArg(anything())))),
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allOf(hasAncestor(cxxConstructorDecl()),
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unless(hasAncestor(cxxCatchStmt()))))))
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.bind("temporary-exception-not-thrown"),
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this);
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}
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void ThrowKeywordMissingCheck::check(const MatchFinder::MatchResult &Result) {
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const auto *TemporaryExpr =
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Result.Nodes.getNodeAs<Expr>("temporary-exception-not-thrown");
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diag(TemporaryExpr->getBeginLoc(), "suspicious exception object created but "
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"not thrown; did you mean 'throw %0'?")
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<< TemporaryExpr->getType().getBaseTypeIdentifier()->getName();
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}
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} // namespace clang::tidy::bugprone
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