| 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 | |
| 19 | namespace clang { |
| 20 | |
| 21 | class ASTContext; |
| 22 | class ObjCMessageExpr; |
| 23 | |
| 24 | class 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 | |
| 36 | public: |
| 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 |