Artifact 36eb4908b4c89ef450afd5e0ba3ad1152bafd93febce7a9a477089dd3f23dc8c:
- File
src/instance.m
— part of check-in
[16ba7ec477]
at
2012-10-10 10:16:22
on branch trunk
— Provide objc_constructInstance() when necessary.
OS X < 10.6 did not have it, so it is built regardless of the selected
runtime now if objc_constructInstance() hasn't been found. (user: js, size: 1916) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008, 2009, 2010, 2011, 2012 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #include "config.h" #import "OFObject.h" static SEL cxx_construct = NULL; static SEL cxx_destruct = NULL; static void __attribute__((constructor)) init(void) { if (cxx_construct == NULL) cxx_construct = sel_registerName(".cxx_construct"); if (cxx_destruct == NULL) cxx_destruct = sel_registerName(".cxx_destruct"); } id objc_constructInstance(Class cls, void *bytes) { id obj = (id)bytes; BOOL (*last)(id, SEL) = NULL; if (cls == Nil || bytes == NULL) return nil; object_setClass(obj, cls); /* FIXME: Constructors of superclasses should be called first */ for (; cls != Nil; cls = class_getSuperclass(cls)) { BOOL (*ctor)(id, SEL); if (class_respondsToSelector(cls, cxx_construct)) { if ((ctor = (BOOL(*)(id, SEL)) class_getMethodImplementation(cls, cxx_construct)) != last) if (!ctor(obj, cxx_construct)) return nil; last = ctor; } else break; } return obj; } void* objc_destructInstance(id obj) { Class cls; void (*last)(id, SEL) = NULL; for (cls = object_getClass(obj); cls != Nil; cls = class_getSuperclass(cls)) { void (*dtor)(id, SEL); if (class_respondsToSelector(cls, cxx_destruct)) { if ((dtor = (void(*)(id, SEL)) class_getMethodImplementation(cls, cxx_destruct)) != last) dtor(obj, cxx_destruct); last = dtor; } else break; } return obj; }