From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- xpcom/base/nsObjCExceptions.h | 56 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 xpcom/base/nsObjCExceptions.h (limited to 'xpcom/base/nsObjCExceptions.h') diff --git a/xpcom/base/nsObjCExceptions.h b/xpcom/base/nsObjCExceptions.h new file mode 100644 index 0000000000..e8c2059d8e --- /dev/null +++ b/xpcom/base/nsObjCExceptions.h @@ -0,0 +1,56 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef nsObjCExceptions_h_ +#define nsObjCExceptions_h_ + +// Undo the damage that exception_defines.h does. +#undef try +#undef catch + +@class NSException; + +// See Mozilla bug 163260. +// This file can only be included in an Objective-C context. + +void nsObjCExceptionLog(NSException* aException); + +namespace mozilla { + +// Check if this is an exception that's outside of our control. +// Called when an exception bubbles up to the native event loop. +bool ShouldIgnoreObjCException(NSException* aException); + +} // namespace mozilla + +// For wrapping blocks of Obj-C calls which are not expected to throw exception. +// Causes a MOZ_CRASH if an Obj-C exception is encountered. +#define NS_OBJC_BEGIN_TRY_ABORT_BLOCK @try { +#define NS_OBJC_END_TRY_ABORT_BLOCK \ + } \ + @catch (NSException * _exn) { \ + nsObjCExceptionLog(_exn); \ + MOZ_CRASH("Encountered unexpected Objective C exception"); \ + } + +// For wrapping blocks of Obj-C calls. Logs the exception and moves on. +#define NS_OBJC_BEGIN_TRY_IGNORE_BLOCK @try { +#define NS_OBJC_END_TRY_IGNORE_BLOCK \ + } \ + @catch (NSException * _exn) { \ + nsObjCExceptionLog(_exn); \ + } + +// Same as above IGNORE_BLOCK but returns a value after the try/catch block. +#define NS_OBJC_BEGIN_TRY_BLOCK_RETURN @try { +#define NS_OBJC_END_TRY_BLOCK_RETURN(_rv) \ + } \ + @catch (NSException * _exn) { \ + nsObjCExceptionLog(_exn); \ + } \ + return _rv; + +#endif // nsObjCExceptions_h_ -- cgit v1.2.3