blob: c945616d6bf23d99b588cc78980906826acfc520 (
plain) (
blame)
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
|
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.
// http://code.google.com/p/protobuf/
//
// 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.
using System.Collections.Generic;
using Google.ProtocolBuffers.Collections;
namespace Google.ProtocolBuffers.Descriptors {
/// <summary>
/// Internal class containing utility methods when working with descriptors.
/// </summary>
internal static class DescriptorUtil {
/// <summary>
/// Equivalent to Func[TInput, int, TOutput] but usable in .NET 2.0. Only used to convert
/// arrays.
/// </summary>
internal delegate TOutput IndexedConverter<TInput, TOutput>(TInput element, int index);
/// <summary>
/// Converts the given array into a read-only list, applying the specified conversion to
/// each input element.
/// </summary>
internal static IList<TOutput> ConvertAndMakeReadOnly<TInput, TOutput>(IList<TInput> input,
IndexedConverter<TInput, TOutput> converter) {
TOutput[] array = new TOutput[input.Count];
for (int i = 0; i < array.Length; i++) {
array[i] = converter(input[i], i);
}
return Lists<TOutput>.AsReadOnly(array);
}
}
}
|
