ObjCNoReturn.h

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//= ObjCNoReturn.h - Handling of Cocoa APIs known not to return --*- 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
//
//===----------------------------------------------------------------------===//
//
// This file implements special handling of recognizing ObjC API hooks that
// do not return but aren't marked as such in API headers.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_CLANG_ANALYSIS_DOMAINSPECIFIC_OBJCNORETURN_H
#define LLVM_CLANG_ANALYSIS_DOMAINSPECIFIC_OBJCNORETURN_H
 
#include "clang/Basic/IdentifierTable.h"
 
namespace clang {
 
class ASTContext;
class ObjCMessageExpr;
 
class ObjCNoReturn {
  /// Cached "raise" selector.
  Selector RaiseSel;
 
  /// Cached identifier for "NSException".
  IdentifierInfo *NSExceptionII;
 
  enum { NUM_RAISE_SELECTORS = 2 };
 
  /// Cached set of selectors in NSException that are 'noreturn'.
  Selector NSExceptionInstanceRaiseSelectors[NUM_RAISE_SELECTORS];
 
public:
  ObjCNoReturn(ASTContext &C);
 
  /// Return true if the given message expression is known to never
  /// return.
  bool isImplicitNoReturn(const ObjCMessageExpr *ME);
};
}
 
#endif