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Diffstat (limited to 'clang-tools-extra/clang-tidy/misc/ThrowByValueCatchByReferenceCheck.h')
-rw-r--r-- | clang-tools-extra/clang-tidy/misc/ThrowByValueCatchByReferenceCheck.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/clang-tools-extra/clang-tidy/misc/ThrowByValueCatchByReferenceCheck.h b/clang-tools-extra/clang-tidy/misc/ThrowByValueCatchByReferenceCheck.h new file mode 100644 index 00000000000..70300318377 --- /dev/null +++ b/clang-tools-extra/clang-tidy/misc/ThrowByValueCatchByReferenceCheck.h @@ -0,0 +1,49 @@ +//===--- ThrowByValueCatchByReferenceCheck.h - clang-tidy--------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_THROW_BY_VALUE_CATCH_BY_REFERENCE_H +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_THROW_BY_VALUE_CATCH_BY_REFERENCE_H + +#include "../ClangTidy.h" + +namespace clang { +namespace tidy { + +///\brief checks for locations that do not throw by value +// or catch by reference. +// The check is C++ only. It checks that all throw locations +// throw by value and not by pointer. Additionally it +// contains an option ("CheckThrowTemporaries", default value "true") that +// checks that thrown objects are anonymous temporaries. It is also +// acceptable for this check to throw string literals. +// This test checks that exceptions are caught by reference +// and not by value or pointer. It will not warn when catching +// pointer to char, wchar_t, char16_t or char32_t. This is +// due to not warning on throwing string literals. +class ThrowByValueCatchByReferenceCheck : public ClangTidyCheck { +public: + ThrowByValueCatchByReferenceCheck(StringRef Name, ClangTidyContext *Context); + void storeOptions(ClangTidyOptions::OptionMap &Opts) override; + void registerMatchers(ast_matchers::MatchFinder *Finder) override; + void check(const ast_matchers::MatchFinder::MatchResult &Result) override; + +private: + void diagnoseThrowLocations(const CXXThrowExpr *throwExpr); + void diagnoseCatchLocations(const CXXCatchStmt *catchStmt, + ASTContext &context); + bool isFunctionParameter(const DeclRefExpr *declRefExpr); + bool isCatchVariable(const DeclRefExpr *declRefExpr); + bool isFunctionOrCatchVar(const DeclRefExpr *declRefExpr); + const bool CheckAnonymousTemporaries; +}; + +} // namespace tidy +} // namespace clang + +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_THROW_BY_VALUE_CATCH_BY_REFERENCE_H |