blob: 0d4df97c7bdfb90ec4d6a5bf3662e272287270e5 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
//===--- ThrowByValueCatchByReferenceCheck.h - clang-tidy--------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#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 "../ClangTidyCheck.h"
namespace clang::tidy::misc {
///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);
bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
return LangOpts.CPlusPlus;
}
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;
const bool WarnOnLargeObject;
const uint64_t MaxSizeOptions; // The raw value read from the options.
uint64_t MaxSize; // No `const` because we have to set it in two steps.
};
} // namespace clang::tidy::misc
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_THROW_BY_VALUE_CATCH_BY_REFERENCE_H
|
