clang-tools  14.0.0git
ThrowKeywordMissingCheck.cpp
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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 
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 bugprone {
18 
19 void ThrowKeywordMissingCheck::registerMatchers(MatchFinder *Finder) {
20  auto CtorInitializerList =
21  cxxConstructorDecl(hasAnyConstructorInitializer(anything()));
22 
23  Finder->addMatcher(
24  cxxConstructExpr(
25  hasType(cxxRecordDecl(
26  isSameOrDerivedFrom(matchesName("[Ee]xception|EXCEPTION")))),
27  unless(anyOf(hasAncestor(stmt(
28  anyOf(cxxThrowExpr(), callExpr(), returnStmt()))),
29  hasAncestor(decl(anyOf(varDecl(), fieldDecl()))),
30  allOf(hasAncestor(CtorInitializerList),
31  unless(hasAncestor(cxxCatchStmt()))))))
32  .bind("temporary-exception-not-thrown"),
33  this);
34 }
35 
36 void ThrowKeywordMissingCheck::check(const MatchFinder::MatchResult &Result) {
37  const auto *TemporaryExpr =
38  Result.Nodes.getNodeAs<Expr>("temporary-exception-not-thrown");
39 
40  diag(TemporaryExpr->getBeginLoc(), "suspicious exception object created but "
41  "not thrown; did you mean 'throw %0'?")
42  << TemporaryExpr->getType().getBaseTypeIdentifier()->getName();
43 }
44 
45 } // namespace bugprone
46 } // namespace tidy
47 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
ThrowKeywordMissingCheck.h
clang::clangd::check
bool check(llvm::StringRef File, llvm::function_ref< bool(const Position &)> ShouldCheckLine, const ThreadsafeFS &TFS, const ClangdLSPServer::Options &Opts, bool EnableCodeCompletion)
Definition: Check.cpp:259
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27