| // |
| // 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 |
| |
| |
