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- /*
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
- */
-
- #import "NSMutableArray+QueueAdditions.h"
-
- @implementation NSMutableArray (QueueAdditions)
-
- - (id)cdv_queueHead
- {
- if ([self count] == 0) {
- return nil;
- }
-
- return [self objectAtIndex:0];
- }
-
- - (__autoreleasing id)cdv_dequeue
- {
- if ([self count] == 0) {
- return nil;
- }
-
- id head = [self objectAtIndex:0];
- if (head != nil) {
- // [[head retain] autorelease]; ARC - the __autoreleasing on the return value should so the same thing
- [self removeObjectAtIndex:0];
- }
-
- return head;
- }
-
- - (id)cdv_pop
- {
- return [self cdv_dequeue];
- }
-
- - (void)cdv_enqueue:(id)object
- {
- [self addObject:object];
- }
-
- @end
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