зеркало из https://github.com/mozilla/gecko-dev.git
150 строки
6.1 KiB
Objective-C
150 строки
6.1 KiB
Objective-C
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Josh Aas <josh@mozilla.com>
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* Robert O'Callahan <robert@ocallahan.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsObjCExceptions_h_
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#define nsObjCExceptions_h_
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#import <Foundation/NSException.h>
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#import <Foundation/NSObjCRuntime.h>
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#include <unistd.h>
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#include <signal.h>
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#include "nsError.h"
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// See Mozilla bug 163260.
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// This file can only be included in an Objective-C context.
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static void nsObjCExceptionLog(NSException *e)
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{
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NSLog(@"%@: %@", [e name], [e reason]);
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}
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static void nsObjCExceptionAbort()
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{
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// We need to raise a mach-o signal here, the Mozilla crash reporter on
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// Mac OS X does not respond to POSIX signals. Raising mach-o signals directly
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// is tricky so we do it by just derefing a null pointer.
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int* foo = NULL;
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*foo = 1;
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}
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static void nsObjCExceptionLogAbort(NSException *e)
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{
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nsObjCExceptionLog(e);
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nsObjCExceptionAbort();
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}
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#define NS_OBJC_TRY(_e, _fail) \
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@try { _e; } \
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@catch(NSException *_exn) { \
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nsObjCExceptionLog(_exn); \
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_fail; \
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}
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#define NS_OBJC_TRY_EXPR(_e, _fail) \
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({ \
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typeof(_e) _tmp; \
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@try { _tmp = (_e); } \
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@catch(NSException *_exn) { \
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nsObjCExceptionLog(_exn); \
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_fail; \
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} \
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_tmp; \
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})
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#define NS_OBJC_TRY_EXPR_NULL(_e) \
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NS_OBJC_TRY_EXPR(_e, 0)
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#define NS_OBJC_TRY_IGNORE(_e) \
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NS_OBJC_TRY(_e, )
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// To reduce code size the abort versions do not reuse above macros. This allows
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// catch blocks to only contain one call.
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#define NS_OBJC_TRY_ABORT(_e) \
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@try { _e; } \
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@catch(NSException *_exn) { \
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nsObjCExceptionLogAbort(_exn); \
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}
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#define NS_OBJC_TRY_EXPR_ABORT(_e) \
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({ \
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typeof(_e) _tmp; \
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@try { _tmp = (_e); } \
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@catch(NSException *_exn) { \
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nsObjCExceptionLogAbort(_exn); \
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} \
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_tmp; \
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})
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// For wrapping blocks of Obj-C calls. Terminates app after logging.
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#define NS_OBJC_BEGIN_TRY_ABORT_BLOCK @try {
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#define NS_OBJC_END_TRY_ABORT_BLOCK } @catch(NSException *_exn) { \
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nsObjCExceptionLogAbort(_exn); \
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}
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// Same as above ABORT_BLOCK but returns a value after the try/catch block to
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// suppress compiler warnings. This allows us to avoid having to refactor code
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// to get scoping right when wrapping an entire method.
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#define NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL @try {
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#define NS_OBJC_END_TRY_ABORT_BLOCK_NIL } @catch(NSException *_exn) { \
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nsObjCExceptionLogAbort(_exn); \
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} \
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return nil;
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#define NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSNULL @try {
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#define NS_OBJC_END_TRY_ABORT_BLOCK_NSNULL } @catch(NSException *_exn) { \
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nsObjCExceptionLogAbort(_exn); \
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} \
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return nsnull;
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#define NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT @try {
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#define NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT } @catch(NSException *_exn) { \
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nsObjCExceptionLogAbort(_exn);\
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} \
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return NS_ERROR_FAILURE;
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#define NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN @try {
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#define NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(_rv) } @catch(NSException *_exn) { \
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nsObjCExceptionLogAbort(_exn);\
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} \
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return _rv;
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#endif // nsObjCExceptions_h_
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