ObjFW  Check-in [240b72cd71]

AX_CHECK_COMPILER_FLAGS(-fno-constant-cfstrings, [
	NO_CONST_CFSTRINGS="-fno-constant-cfstrings"
	OBJCFLAGS="$OBJCFLAGS -fno-constant-cfstrings"])
AC_SUBST(NO_CONST_CFSTRINGS)

AC_DEFINE(OF_CONFIGURED, 1, [Define so that we know we got our config.h])

AC_MSG_CHECKING(which Objective C runtime we use)
dnl TODO: This is ugly. Let's think of a better check.
AC_EGREP_CPP(gnu, [
	#import <objc/objc.h>
	#ifdef __objc_INCLUDE_GNU
	gnu
	#endif
	], [
	AC_DEFINE(OF_GNU_RUNTIME, 1, [Whether we use the GNU ObjC runtime])
	AC_SUBST(RUNTIME_DEF, "-DOF_GNU_RUNTIME")
	objc_runtime="GNU"
	], [
	AC_DEFINE(OF_APPLE_RUNTIME, 1, [Whether we use the Apple ObjC runtime])
	AC_SUBST(RUNTIME_DEF, "-DOF_APPLE_RUNTIME")
	objc_runtime="Apple"])
AC_MSG_RESULT($objc_runtime)

BUILDSYS_LIB
AC_DEFINE_UNQUOTED(PLUGIN_SUFFIX, "$PLUGIN_SUFFIX", [Suffix for plugins])
if test x"$PLUGIN_SUFFIX" != "x"; then
	AC_SUBST(OFPLUGIN_M, "OFPlugin.m")
	AC_SUBST(TESTPLUGIN, "plugin")
	AC_DEFINE(OF_PLUGINS, 1, [Whether we have plugin support])
	AC_SUBST(OFPLUGINS_DEF, "-DOF_PLUGINS")

		], [
		AC_MSG_RESULT(yes)
		size_max="SIZE_T_MAX"], [
		AC_MSG_RESULT(no)
		size_max="((size_t)-1)"])
	AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t])])




AC_CHECK_FUNC(objc_sync_enter,, [
	AC_SUBST(OBJC_SYNC, "objc_sync")
	AC_SUBST(OBJC_SYNC_M, "objc_sync.m")
	AC_DEFINE(NEED_OBJC_SYNC_INIT, 1,
		[Whether objc_sync_init needs to be called])])

AC_CHECK_FUNC(asprintf, [

#!/bin/sh
prefix="@prefix@"
exec_prefix="@exec_prefix@"
libdir="@libdir@"
CFLAGS=""
CPPFLAGS="-I@includedir@ -DOF_CONFIGURED @RUNTIME_DEF@ @ENDIANESS_DEF@"
CPPFLAGS="$CPPFLAGS @ASPRINTF_DEF@ @OFPLUGINS_DEF@"
CXXFLAGS=""
OBJCFLAGS="-fobjc-exceptions -fconstant-string-class=OFConstString"
OBJCFLAGS="$OBJCFLAGS @NO_CONST_CFSTRINGS@ @NO_WARN_UNUSED@"
LDFLAGS="@RPATH_LDFLAGS@"
LIBS="-L${libdir} -lobjfw @LIBS@"
VERSION="0.1"

/*
 * Copyright (c) 2008 - 2009
 *   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 included in
 * the packaging of this file.
 */

#import "OFString.h"



#ifdef OF_APPLE_RUNTIME
extern void *_OFConstStringClassReference;
#endif

/**
 * A class for storing static strings using the @"" literal.
 */
@interface OFConstString: OFString {}
@end

 */

#include "config.h"

#import "OFConstString.h"
#import "OFExceptions.h"

#ifdef OF_APPLE_RUNTIME
#import <objc/runtime.h>

void *_OFConstStringClassReference;
#endif

@implementation OFConstString
#ifdef OF_APPLE_RUNTIME
+ (void)load
{
	objc_setFutureClass((Class)&_OFConstStringClassReference,
	    "OFConstString");
}
#endif

#error Please use objfw-config!
#endif

#include <stddef.h>
#include <stdint.h>

#import <objc/objc.h>




/**
 * A result of a comparison.
 */
typedef enum {
	/// The left object is smaller than the right
	OF_ORDERED_ASCENDING = -1,

#import "OFObject.h"
#import "OFAutoreleasePool.h"
#import "OFExceptions.h"
#import "OFMacros.h"

#import <objc/objc-api.h>
#ifdef OF_APPLE_RUNTIME
#import <objc/runtime.h>
#endif
#ifdef OF_GNU_RUNTIME
#import <objc/sarray.h>
#endif

struct pre_ivar {
	void   **memchunks;
	size_t memchunks_size;
	size_t retain_count;
};

+ (void)initialize
{
}

+ alloc
{
	OFObject *instance;
#ifdef OF_APPLE_RUNTIME
	size_t isize = class_getInstanceSize(self);
#else
	size_t isize = class_get_instance_size(self);
#endif

	if ((instance = malloc(isize + PRE_IVAR_ALIGN)) == NULL) {
		alloc_failed_exception.isa = [OFAllocFailedException class];
		@throw (OFAllocFailedException*)&alloc_failed_exception;
	}

+ (Class)class
{
	return self;
}

+ (const char*)className
{
#ifdef OF_APPLE_RUNTIME
	return class_getName(self);
#else
	return class_get_class_name(self);
#endif
}

+ (BOOL)instancesRespondToSelector: (SEL)selector
{
#ifdef OF_APPLE_RUNTIME
	return class_respondsToSelector(self, selector);
#else
	return class_get_instance_method(self, selector) != METHOD_NULL;
#endif
}

+ (BOOL)conformsToProtocol: (Protocol*)protocol
{
#ifdef OF_APPLE_RUNTIME
	Class c;

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

	return NO;
#else
	Class c;
	struct objc_protocol_list *pl;
	size_t i;

	for (c = self; c != Nil; c = class_get_super_class(c))
		for (pl = c->protocols; pl != NULL; pl = pl->next)
			for (i = 0; i < pl->count; i++)
				if ([pl->list[i] conformsToProtocol: protocol])
					return YES;









	return NO;
#endif
}

+ (IMP)instanceMethodForSelector: (SEL)selector
{
#ifdef OF_APPLE_RUNTIME
	return class_getMethodImplementation(self, selector);
#else
	return method_get_imp(class_get_instance_method(self, selector));
#endif
}

+ (IMP)setImplementation: (IMP)newimp
	       forMethod: (SEL)selector
{
#ifdef OF_APPLE_RUNTIME
	Method method;

	if ((method = class_getInstanceMethod(self, selector)) == NULL)
		@throw [OFInvalidArgumentException newWithClass: self
						       selector: _cmd];

	return method_setImplementation(method, newimp);
#else
	Method_t method = class_get_instance_method(self, selector);
	IMP oldimp;

	if (method == NULL)
		@throw [OFInvalidArgumentException newWithClass: self
						       selector: _cmd];

	if ((oldimp = method_get_imp(method)) == (IMP)0 || newimp == (IMP)0)
		@throw [OFInvalidArgumentException newWithClass: self
						       selector: _cmd];

	method->method_imp = newimp;

	/* Update the dtable if necessary */
	if (sarray_get_safe(((Class)self)->dtable,
	    (sidx)method->method_name->sel_id))
		sarray_at_put_safe(((Class)self)->dtable,
		    (sidx)method->method_name->sel_id, method->method_imp);

	return oldimp;








#endif
}

+  (IMP)replaceMethod: (SEL)selector
  withMethodFromClass: (Class)class;
{
	IMP newimp;

#ifdef OF_APPLE_RUNTIME
	newimp = class_getMethodImplementation(class, selector);
#else
	newimp = method_get_imp(class_get_instance_method(class, selector));
#endif

	return [self setImplementation: newimp
			     forMethod: selector];
}

- init
{
	return self;
}

- (Class)class
{
	return isa;
}

- (const char*)className
{
#ifdef OF_APPLE_RUNTIME
	return class_getName(isa);
#else
	return object_get_class_name(self);
#endif
}

- (BOOL)isKindOfClass: (Class)class
{
	Class iter;

#ifdef OF_APPLE_RUNTIME
	for (iter = isa; iter != Nil; iter = class_getSuperclass(iter))
#else
	for (iter = isa; iter != Nil; iter = class_get_super_class(iter))
#endif
		if (iter == class)
			return YES;

	return NO;
}

- (BOOL)respondsToSelector: (SEL)selector
{
#ifdef OF_APPLE_RUNTIME
	return class_respondsToSelector(isa, selector);
#else
	if (object_is_instance(self))
		return class_get_instance_method(isa, selector) != METHOD_NULL;
	else
		return class_get_class_method(isa, selector) != METHOD_NULL;


#endif
}

- (BOOL)conformsToProtocol: (Protocol*)protocol
{
	return [isa conformsToProtocol: protocol];
}

- (IMP)methodForSelector: (SEL)selector
{
#ifdef OF_APPLE_RUNTIME
	return class_getMethodImplementation(isa, selector);
#else
	if (object_is_instance(self))
		return method_get_imp(class_get_instance_method(isa, selector));
	else
		return method_get_imp(class_get_class_method(isa, selector));


#endif
}

- (BOOL)isEqual: (id)obj
{
	/* Classes containing data should reimplement this! */
	return (self == obj ? YES : NO);

/**
 * A class for managing strings.
 */
@interface OFString: OFObject <OFCopying, OFMutableCopying>
{
	char	     *string;
	unsigned int length;
#if defined(OF_APPLE_RUNTIME) && __LP64__
	int	     _unused;
#endif
	BOOL	     is_utf8;
}

/**
 * \return A new autoreleased OFString