48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
//===--- AvoidThrowingObjCExceptionCheck.cpp - clang-tidy------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "AvoidThrowingObjCExceptionCheck.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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using namespace clang::ast_matchers;
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namespace clang {
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namespace tidy {
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namespace google {
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namespace objc {
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void AvoidThrowingObjCExceptionCheck::registerMatchers(MatchFinder *Finder) {
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Finder->addMatcher(objcThrowStmt().bind("throwStmt"), this);
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Finder->addMatcher(
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objcMessageExpr(anyOf(hasSelector("raise:format:"),
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hasSelector("raise:format:arguments:")),
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hasReceiverType(asString("NSException")))
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.bind("raiseException"),
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this);
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}
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void AvoidThrowingObjCExceptionCheck::check(
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const MatchFinder::MatchResult &Result) {
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const auto *MatchedStmt =
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Result.Nodes.getNodeAs<ObjCAtThrowStmt>("throwStmt");
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const auto *MatchedExpr =
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Result.Nodes.getNodeAs<ObjCMessageExpr>("raiseException");
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auto SourceLoc = MatchedStmt == nullptr ? MatchedExpr->getSelectorStartLoc()
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: MatchedStmt->getThrowLoc();
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diag(SourceLoc,
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"pass in NSError ** instead of throwing exception to indicate "
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"Objective-C errors");
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}
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} // namespace objc
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} // namespace google
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} // namespace tidy
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} // namespace clang
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