1//===--- ThrowKeywordMissingCheck.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 "ThrowKeywordMissingCheck.h"
10#include "clang/AST/ASTContext.h"
11#include "clang/ASTMatchers/ASTMatchFinder.h"
12
13using namespace clang::ast_matchers;
14
15namespace clang::tidy::bugprone {
16
17void ThrowKeywordMissingCheck::registerMatchers(MatchFinder *Finder) {
18 Finder->addMatcher(
19 NodeMatch: cxxConstructExpr(
20 hasType(InnerMatcher: cxxRecordDecl(
21 isSameOrDerivedFrom(Base: matchesName(RegExp: "[Ee]xception|EXCEPTION")))),
22 unless(anyOf(
23 hasAncestor(
24 stmt(anyOf(cxxThrowExpr(), callExpr(), returnStmt()))),
25 hasAncestor(decl(anyOf(varDecl(), fieldDecl()))),
26 hasAncestor(expr(cxxNewExpr(hasAnyPlacementArg(InnerMatcher: anything())))),
27 allOf(hasAncestor(cxxConstructorDecl()),
28 unless(hasAncestor(cxxCatchStmt()))))))
29 .bind(ID: "temporary-exception-not-thrown"),
30 Action: this);
31}
32
33void ThrowKeywordMissingCheck::check(const MatchFinder::MatchResult &Result) {
34 const auto *TemporaryExpr =
35 Result.Nodes.getNodeAs<Expr>(ID: "temporary-exception-not-thrown");
36
37 diag(TemporaryExpr->getBeginLoc(), "suspicious exception object created but "
38 "not thrown; did you mean 'throw %0'?")
39 << TemporaryExpr->getType().getBaseTypeIdentifier()->getName();
40}
41
42} // namespace clang::tidy::bugprone
43

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source code of clang-tools-extra/clang-tidy/bugprone/ThrowKeywordMissingCheck.cpp