forked from OSchip/llvm-project
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
//===--- AvoidThrowingObjCExceptionCheck.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 "AvoidThrowingObjCExceptionCheck.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/ASTMatchers/ASTMatchFinder.h"
|
|
|
|
using namespace clang::ast_matchers;
|
|
|
|
namespace clang {
|
|
namespace tidy {
|
|
namespace google {
|
|
namespace objc {
|
|
|
|
void AvoidThrowingObjCExceptionCheck::registerMatchers(MatchFinder *Finder) {
|
|
// this check should only be applied to ObjC sources.
|
|
if (!getLangOpts().ObjC)
|
|
return;
|
|
|
|
Finder->addMatcher(objcThrowStmt().bind("throwStmt"), this);
|
|
Finder->addMatcher(
|
|
objcMessageExpr(anyOf(hasSelector("raise:format:"),
|
|
hasSelector("raise:format:arguments:")),
|
|
hasReceiverType(asString("NSException")))
|
|
.bind("raiseException"),
|
|
this);
|
|
}
|
|
|
|
void AvoidThrowingObjCExceptionCheck::check(
|
|
const MatchFinder::MatchResult &Result) {
|
|
const auto *MatchedStmt =
|
|
Result.Nodes.getNodeAs<ObjCAtThrowStmt>("throwStmt");
|
|
const auto *MatchedExpr =
|
|
Result.Nodes.getNodeAs<ObjCMessageExpr>("raiseException");
|
|
auto SourceLoc = MatchedStmt == nullptr ? MatchedExpr->getSelectorStartLoc()
|
|
: MatchedStmt->getThrowLoc();
|
|
diag(SourceLoc,
|
|
"pass in NSError ** instead of throwing exception to indicate "
|
|
"Objective-C errors");
|
|
}
|
|
|
|
} // namespace objc
|
|
} // namespace google
|
|
} // namespace tidy
|
|
} // namespace clang
|