| 1 | //===--- ThrowKeywordMissingCheck.cpp - clang-tidy-------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "ThrowKeywordMissingCheck.h" |
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| 10 | #include "clang/AST/ASTContext.h" |
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| 11 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
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| 12 | |
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| 13 | using namespace clang::ast_matchers; |
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| 14 | |
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| 15 | namespace clang::tidy::bugprone { |
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| 16 | |
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| 17 | void ThrowKeywordMissingCheck::registerMatchers(MatchFinder *Finder) { |
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| 18 | Finder->addMatcher( |
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| 19 | NodeMatch: cxxConstructExpr( |
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| 20 | hasType(InnerMatcher: cxxRecordDecl( |
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| 21 | isSameOrDerivedFrom(Base: matchesName(RegExp: "[Ee]xception|EXCEPTION" )))), |
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| 22 | unless(anyOf( |
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| 23 | hasAncestor( |
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| 24 | stmt(anyOf(cxxThrowExpr(), callExpr(), returnStmt()))), |
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| 25 | hasAncestor(decl(anyOf(varDecl(), fieldDecl()))), |
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| 26 | hasAncestor(expr(cxxNewExpr(hasAnyPlacementArg(InnerMatcher: anything())))), |
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| 27 | allOf(hasAncestor(cxxConstructorDecl()), |
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| 28 | unless(hasAncestor(cxxCatchStmt())))))) |
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| 29 | .bind(ID: "temporary-exception-not-thrown" ), |
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| 30 | Action: this); |
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| 31 | } |
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| 32 | |
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| 33 | void ThrowKeywordMissingCheck::check(const MatchFinder::MatchResult &Result) { |
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| 34 | const auto *TemporaryExpr = |
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| 35 | Result.Nodes.getNodeAs<Expr>(ID: "temporary-exception-not-thrown" ); |
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| 36 | |
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| 37 | diag(TemporaryExpr->getBeginLoc(), "suspicious exception object created but " |
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| 38 | "not thrown; did you mean 'throw %0'?" ) |
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| 39 | << TemporaryExpr->getType().getBaseTypeIdentifier()->getName(); |
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| 40 | } |
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| 41 | |
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| 42 | } // namespace clang::tidy::bugprone |
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| 43 | |
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