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 | |
13 | using namespace clang::ast_matchers; |
14 | |
15 | namespace clang::tidy::bugprone { |
16 | |
17 | void 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 | |
33 | void 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 |