ObjFW  Diff

/*
 * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
 *
 * 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"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "unistd_wrapper.h"

#include <assert.h>

#ifdef OF_APPLE_RUNTIME
# include <dlfcn.h>
#endif

#ifdef HAVE_GETRANDOM
# include <sys/random.h>
#endif

#import "OFObject.h"
#import "OFArray.h"
#ifdef OF_HAVE_ATOMIC_OPS
# import "OFAtomic.h"
#endif
#import "OFLocale.h"
#import "OFMethodSignature.h"
#import "OFRunLoop.h"
#if !defined(OF_HAVE_ATOMIC_OPS) && defined(OF_HAVE_THREADS)
# import "OFPlainMutex.h"	/* For OFSpinlock */
#endif

#import "OFString.h"
#import "OFThread.h"
#import "OFTimer.h"
#import "OFValue.h"

#import "OFAllocFailedException.h"
#import "OFEnumerationMutationException.h"

#endif

#ifdef OF_WINDOWS
# include <windows.h>
#endif

#ifdef OF_AMIGAOS

# include <proto/exec.h>

#endif

#ifdef OF_APPLE_RUNTIME
extern id _Nullable _objc_rootAutorelease(id _Nullable object);
#endif
#if defined(OF_HAVE_FORWARDING_TARGET_FOR_SELECTOR)
extern id OFForward(id, SEL, ...);

	return method_getTypeEncoding(method);
}

#if !defined(OF_APPLE_RUNTIME) || defined(__OBJC2__)
static void
uncaughtExceptionHandler(id exception)
{
	OFString *description = [exception description];
	OFArray OF_GENERIC(OFValue *) *stackTraceAddresses = nil;
	OFArray OF_GENERIC(OFString *) *stackTraceSymbols = nil;
	OFStringEncoding encoding = [OFLocale encoding];

	fprintf(stderr, "\nRuntime error: Unhandled exception:\n%s\n",
	    [description cStringWithEncoding: encoding]);

	if ([exception respondsToSelector: @selector(stackTraceAddresses)])
		stackTraceAddresses = [exception stackTraceAddresses];

	if (stackTraceAddresses != nil) {
		size_t count = stackTraceAddresses.count;

		if ([exception respondsToSelector:
		    @selector(stackTraceSymbols)])
			stackTraceSymbols = [exception stackTraceSymbols];

		if (stackTraceSymbols.count != count)
			stackTraceSymbols = nil;


		fputs("\nStack trace:\n", stderr);

		if (stackTraceSymbols != nil) {
			for (size_t i = 0; i < count; i++) {
				void *address = [[stackTraceAddresses
				    objectAtIndex: i] pointerValue];
				const char *symbol = [[stackTraceSymbols
				    objectAtIndex: i]
				    cStringWithEncoding: encoding];

				fprintf(stderr, "  %p  %s\n", address, symbol);
			}
		} else {
			for (size_t i = 0; i < count; i++) {
				void *address = [[stackTraceAddresses
				    objectAtIndex: i] pointerValue];

				fprintf(stderr, "  %p\n", address);
			}
		}

		fputs("\n", stderr);
	}

	abort();
}
#endif

static void

}

/* References for static linking */
void
_references_to_categories_of_OFObject(void)
{
	_OFObject_KeyValueCoding_reference = 1;
	_OFObject_Serialization_reference = 1;
}

@implementation OFObject
+ (void)load
{
#if !defined(OF_APPLE_RUNTIME) || defined(__OBJC2__)
	objc_setUncaughtExceptionHandler(uncaughtExceptionHandler);

}

+ (instancetype)alloc
{
	return OFAllocObject(self, 0, 0, NULL);
}

+ (instancetype)new
{
	return [[self alloc] init];
}

+ (Class)class
{
	return self;
}

+ (OFString *)className
{

+ (bool)instancesRespondToSelector: (SEL)selector
{
	return class_respondsToSelector(self, selector);
}

+ (bool)conformsToProtocol: (Protocol *)protocol
{
	Class c;

	for (c = self; c != Nil; c = class_getSuperclass(c))
		if (class_conformsToProtocol(c, protocol))
			return true;

	return false;
}

+ (IMP)instanceMethodForSelector: (SEL)selector
{

	}

	[self inheritMethodsFromClass: superclass];
}

+ (bool)resolveClassMethod: (SEL)selector
{
	return NO;
}

+ (bool)resolveInstanceMethod: (SEL)selector
{
	return NO;
}

- (instancetype)init
{
	return self;
}

#endif

	return self;
}

- (unsigned int)retainCount
{
	assert(PRE_IVARS->retainCount >= 0);
	return PRE_IVARS->retainCount;
}

- (void)release
{
#if defined(OF_HAVE_ATOMIC_OPS)
	OFReleaseMemoryBarrier();