blob: eddfd26680216ef84589ff9c2ca26ee35713665b (
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
|
/*
*
* Copyright 2015 gRPC authors.
*
* 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 "GRXNSBlockEnumerator.h"
@implementation GRXNSBlockEnumerator {
id (^_block)(void);
}
- (instancetype)init {
return [self initWithValueSupplier:nil];
}
- (instancetype)initWithValueSupplier:(id (^)(void))block {
if ((self = [super init])) {
_block = block;
}
return self;
}
- (id)nextObject {
if (!_block) {
return nil;
}
id value = _block();
if (!value) {
_block = nil;
}
return value;
}
@end
|
