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/* This file contains the implementation of class Protocol.
Copyright (C) 1993, 2004, 2009, 2010 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "objc-private/common.h"
#include "objc/runtime.h"
#include "objc-private/module-abi-8.h"
#include "objc/Protocol.h"
@implementation Protocol
- (BOOL) isEqual: (id)obj
{
return protocol_isEqual (self, obj);
}
@end
@implementation Protocol (Deprecated)
- (const char *)name
{
return protocol_name;
}
- (BOOL) conformsTo: (Protocol *)aProtocolObject
{
return protocol_conformsToProtocol (self, aProtocolObject);
}
- (struct objc_method_description *) descriptionForInstanceMethod:(SEL)aSel
{
int i;
struct objc_protocol_list* proto_list;
struct objc_method_description *result;
if (instance_methods)
for (i = 0; i < instance_methods->count; i++)
{
if (sel_isEqual (instance_methods->list[i].name, aSel))
return &(instance_methods->list[i]);
}
for (proto_list = protocol_list; proto_list; proto_list = proto_list->next)
{
size_t j;
for (j=0; j < proto_list->count; j++)
{
if ((result = [proto_list->list[j]
descriptionForInstanceMethod: aSel]))
return result;
}
}
return NULL;
}
- (struct objc_method_description *) descriptionForClassMethod:(SEL)aSel;
{
int i;
struct objc_protocol_list* proto_list;
struct objc_method_description *result;
if (class_methods)
for (i = 0; i < class_methods->count; i++)
{
if (sel_isEqual (class_methods->list[i].name, aSel))
return &(class_methods->list[i]);
}
for (proto_list = protocol_list; proto_list; proto_list = proto_list->next)
{
size_t j;
for (j=0; j < proto_list->count; j++)
{
if ((result = [proto_list->list[j]
descriptionForClassMethod: aSel]))
return result;
}
}
return NULL;
}
- (unsigned) hash
{
/* Compute a hash of the protocol_name; use the same hash algorithm
that we use for class names; protocol names and class names are
somewhat similar types of string spaces. */
int hash = 0, index;
for (index = 0; protocol_name[index] != '\0'; index++)
{
hash = (hash << 4) ^ (hash >> 28) ^ protocol_name[index];
}
hash = (hash ^ (hash >> 10) ^ (hash >> 20));
return hash;
}
@end
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