| //===--- ExceptionEscapeCheck.cpp - clang-tidy ----------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "ExceptionEscapeCheck.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/AST/OpenMPClause.h" |
| #include "clang/AST/Stmt.h" |
| #include "clang/AST/StmtOpenMP.h" |
| #include "clang/ASTMatchers/ASTMatchFinder.h" |
| #include "clang/ASTMatchers/ASTMatchers.h" |
| #include "clang/ASTMatchers/ASTMatchersMacros.h" |
| |
| using namespace clang::ast_matchers; |
| |
| namespace clang { |
| namespace tidy { |
| namespace openmp { |
| |
| ExceptionEscapeCheck::ExceptionEscapeCheck(StringRef Name, |
| ClangTidyContext *Context) |
| : ClangTidyCheck(Name, Context), |
| RawIgnoredExceptions(Options.get("IgnoredExceptions", "")) { |
| llvm::SmallVector<StringRef, 8> FunctionsThatShouldNotThrowVec, |
| IgnoredExceptionsVec; |
| |
| llvm::StringSet<> IgnoredExceptions; |
| StringRef(RawIgnoredExceptions).split(IgnoredExceptionsVec, ",", -1, false); |
| llvm::transform(IgnoredExceptionsVec, IgnoredExceptionsVec.begin(), |
| [](StringRef S) { return S.trim(); }); |
| IgnoredExceptions.insert(IgnoredExceptionsVec.begin(), |
| IgnoredExceptionsVec.end()); |
| Tracer.ignoreExceptions(std::move(IgnoredExceptions)); |
| Tracer.ignoreBadAlloc(true); |
| } |
| |
| void ExceptionEscapeCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) { |
| Options.store(Opts, "IgnoredExceptions", RawIgnoredExceptions); |
| } |
| |
| void ExceptionEscapeCheck::registerMatchers(MatchFinder *Finder) { |
| Finder->addMatcher(ompExecutableDirective( |
| unless(isStandaloneDirective()), |
| hasStructuredBlock(stmt().bind("structured-block"))) |
| .bind("directive"), |
| this); |
| } |
| |
| void ExceptionEscapeCheck::check(const MatchFinder::MatchResult &Result) { |
| const auto *Directive = |
| Result.Nodes.getNodeAs<OMPExecutableDirective>("directive"); |
| assert(Directive && "Expected to match some OpenMP Executable directive."); |
| const auto *StructuredBlock = |
| Result.Nodes.getNodeAs<Stmt>("structured-block"); |
| assert(StructuredBlock && "Expected to get some OpenMP Structured Block."); |
| |
| if (Tracer.analyze(StructuredBlock).getBehaviour() != |
| utils::ExceptionAnalyzer::State::Throwing) |
| return; // No exceptions have been proven to escape out of the struc. block. |
| |
| // FIXME: We should provide more information about the exact location where |
| // the exception is thrown, maybe the full path the exception escapes. |
| |
| diag(StructuredBlock->getBeginLoc(), |
| "an exception thrown inside of the OpenMP '%0' region is not caught in " |
| "that same region") |
| << getOpenMPDirectiveName(Directive->getDirectiveKind()); |
| } |
| |
| } // namespace openmp |
| } // namespace tidy |
| } // namespace clang |