projects / apple / objc4.git / blame
| Commit | Line | Data |
|---|---|---|
| 390d5862 | 1 | /* |
| b3962a83 | 2 | * Copyright (c) 2002-2003, 2006-2007 Apple Inc. All Rights Reserved. |
| 390d5862 | 3 | * |
| b3962a83 | 4 | * @APPLE_LICENSE_HEADER_START@ |
| 390d5862 A |
5 | * |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 390d5862 A |
23 | |
| 24 | #ifndef __OBJC_EXCEPTION_H_ | |
| 25 | #define __OBJC_EXCEPTION_H_ | |
| 26 | ||
| b3962a83 A |
27 | #import <objc/objc.h> |
| 28 | ||
| 29 | // ZEROCOST_SWITCH | |
| 30 | #if !__LP64__ || !OBJC_ZEROCOST_EXCEPTIONS | |
| 390d5862 A |
31 | |
| 32 | // compiler reserves a setjmp buffer + 4 words as localExceptionData | |
| 33 | ||
| 34 | OBJC_EXPORT void objc_exception_throw(id exception); | |
| 35 | OBJC_EXPORT void objc_exception_try_enter(void *localExceptionData); | |
| 36 | OBJC_EXPORT void objc_exception_try_exit(void *localExceptionData); | |
| 37 | OBJC_EXPORT id objc_exception_extract(void *localExceptionData); | |
| 38 | OBJC_EXPORT int objc_exception_match(Class exceptionClass, id exception); | |
| 39 | ||
| 40 | ||
| 41 | typedef struct { | |
| 42 | int version; | |
| 43 | void (*throw_exc)(id); // version 0 | |
| 44 | void (*try_enter)(void *); // version 0 | |
| 45 | void (*try_exit)(void *); // version 0 | |
| 46 | id (*extract)(void *); // version 0 | |
| 47 | int (*match)(Class, id); // version 0 | |
| 48 | } | |
| 49 | objc_exception_functions_t; | |
| 50 | ||
| 51 | // get table; version tells how many | |
| 52 | OBJC_EXPORT void objc_exception_get_functions(objc_exception_functions_t *table); | |
| 53 | ||
| 54 | // set table | |
| 55 | OBJC_EXPORT void objc_exception_set_functions(objc_exception_functions_t *table); | |
| 56 | ||
| b3962a83 A |
57 | |
| 58 | // !__LP64__ | |
| 59 | #else | |
| 60 | // __LP64__ | |
| 61 | ||
| 62 | typedef id (*objc_exception_preprocessor)(id exception); | |
| 63 | typedef int (*objc_exception_matcher)(Class catch_type, id exception); | |
| 64 | typedef void (*objc_uncaught_exception_handler)(id exception); | |
| 65 | typedef void (*objc_exception_handler)(id unused, void *context); | |
| 66 | ||
| 67 | OBJC_EXPORT void objc_exception_throw(id exception); | |
| 68 | OBJC_EXPORT void objc_exception_rethrow(void); | |
| 69 | OBJC_EXPORT id objc_begin_catch(void *exc_buf); | |
| 70 | OBJC_EXPORT void objc_end_catch(void); | |
| 71 | ||
| 72 | OBJC_EXPORT uintptr_t objc_addExceptionHandler(objc_exception_handler fn, void *context); | |
| 73 | OBJC_EXPORT void objc_removeExceptionHandler(uintptr_t token); | |
| 74 | ||
| 75 | OBJC_EXPORT objc_exception_preprocessor objc_setExceptionPreprocessor(objc_exception_preprocessor fn); | |
| 76 | OBJC_EXPORT objc_exception_matcher objc_setExceptionMatcher(objc_exception_matcher fn); | |
| 77 | OBJC_EXPORT objc_uncaught_exception_handler objc_setUncaughtExceptionHandler(objc_uncaught_exception_handler fn); | |
| 78 | ||
| 79 | ||
| 80 | // __LP64__ | |
| 81 | #endif | |
| 82 | ||
| 390d5862 A |
83 | #endif // __OBJC_EXCEPTION_H_ |
| 84 |