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