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1/*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19#import "GRXMappingWriter.h"
20
21@interface GRXForwardingWriter ()<GRXWriteable>
22@end
23
24@implementation GRXMappingWriter {
25  id (^_map)(id value);
26}
27
28- (instancetype)initWithWriter:(GRXWriter *)writer {
29  return [self initWithWriter:writer map:nil];
30}
31
32// Designated initializer
33- (instancetype)initWithWriter:(GRXWriter *)writer map:(id (^)(id value))map {
34  if ((self = [super initWithWriter:writer])) {
35    _map = map ?: ^id(id value) {
36      return value;
37    };
38  }
39  return self;
40}
41
42// Override
43- (void)writeValue:(id)value {
44  [super writeValue:_map(value)];
45}
46@end
47