CyteKit/countByEnumeratingWithState.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cydia is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cydia is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "CyteKit/UCPlatform.h"
  23
  24 #include "CyteKit/countByEnumeratingWithState.h"
  25
  26 #include <objc/runtime.h>
  27
  28 #include "iPhonePrivate.h"
  29
  30 static NSUInteger DOMNodeList$countByEnumeratingWithState$objects$count$(DOMNodeList *self, SEL sel, NSFastEnumerationState *state, id *objects, NSUInteger count) {
  31     size_t length([self length] - state->state);
  32     if (length <= 0)
  33         return 0;
  34     else if (length > count)
  35         length = count;
  36     for (size_t i(0); i != length; ++i)
  37         objects[i] = [self item:state->state++];
  38     state->itemsPtr = objects;
  39     state->mutationsPtr = (unsigned long *) self;
  40     return length;
  41 }
  42
  43 static struct DOMNodeList$countByEnumeratingWithState { DOMNodeList$countByEnumeratingWithState() {
  44     class_addMethod(objc_getClass("DOMNodeList"), @selector(countByEnumeratingWithState:objects:count:), (IMP) &DOMNodeList$countByEnumeratingWithState$objects$count$, "I20@0:4^{NSFastEnumerationState}8^@12I16");
  45 } } DOMNodeList$countByEnumeratingWithState;
  46
  47 @implementation WebScriptObject (Cyte)
  48
  49 - (NSUInteger) count {
  50     id length([self valueForKey:@"length"]);
  51     if ([length respondsToSelector:@selector(intValue)])
  52         return [length intValue];
  53     else
  54         return 0;
  55 }
  56
  57 - (id) objectAtIndex:(unsigned)index {
  58     return [self webScriptValueAtIndex:index];
  59 }
  60
  61 - (NSUInteger) countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)objects count:(NSUInteger)count {
  62     size_t length([self count] - state->state);
  63     if (length <= 0)
  64         return 0;
  65     else if (length > count)
  66         length = count;
  67     for (size_t i(0); i != length; ++i)
  68         objects[i] = [self objectAtIndex:state->state++];
  69     state->itemsPtr = objects;
  70     state->mutationsPtr = (unsigned long *) self;
  71     return length;
  72 }
  73
  74 @end