blob: ef8787b96ac2a0fd635163ffbef3030804e88152 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
//
// GTMNSArray+Merge.h
//
// Copyright 2008 Google Inc.
//
// Licensed 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 <Foundation/Foundation.h>
// Extension to NSArray to allow merging of arrays.
//
@interface NSArray (GTMNSArrayMergingAdditions)
// Merge our array with |newArray| by sorting each array then merging the
// two arrays. If |merger| is provided then call that method on any old
// items that compare as equal to a new item, passing the new item as
// the only argument. If |merger| is not provided, then insert new items
// in front of matching old items. If neither array has any items then
// nil is returned.
//
// The signature of the |merger| is:
// - (id)merge:(id)newItem;
//
// Returns a new, sorted array.
- (NSArray *)gtm_mergeArray:(NSArray *)newArray
mergeSelector:(SEL)merger;
// Same as above, only |comparer| is used to sort/compare the objects, just like
// -[NSArray sortedArrayUsingSelector]. If |comparer| is nil, nil is returned.
- (NSArray *)gtm_mergeArray:(NSArray *)newArray
compareSelector:(SEL)comparer
mergeSelector:(SEL)merger;
@end
|
