1//= ObjCNoReturn.h - Handling of Cocoa APIs known not to return --*- C++ -*---//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file implements special handling of recognizing ObjC API hooks that
10// do not return but aren't marked as such in API headers.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_CLANG_ANALYSIS_DOMAINSPECIFIC_OBJCNORETURN_H
15#define LLVM_CLANG_ANALYSIS_DOMAINSPECIFIC_OBJCNORETURN_H
16
17#include "clang/Basic/IdentifierTable.h"
18
19namespace clang {
20
21class ASTContext;
22class ObjCMessageExpr;
23
24class ObjCNoReturn {
25 /// Cached "raise" selector.
26 Selector RaiseSel;
27
28 /// Cached identifier for "NSException".
29 IdentifierInfo *NSExceptionII;
30
31 enum { NUM_RAISE_SELECTORS = 2 };
32
33 /// Cached set of selectors in NSException that are 'noreturn'.
34 Selector NSExceptionInstanceRaiseSelectors[NUM_RAISE_SELECTORS];
35
36public:
37 ObjCNoReturn(ASTContext &C);
38
39 /// Return true if the given message expression is known to never
40 /// return.
41 bool isImplicitNoReturn(const ObjCMessageExpr *ME);
42};
43}
44
45#endif
46