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author | Jon Skeet <skeet@pobox.com> | 2008-10-22 13:30:34 +0100 |
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committer | Jon Skeet <skeet@pobox.com> | 2008-10-22 13:30:34 +0100 |
commit | 6803686bc06c4d96afd9bd2637f7b37a58596699 (patch) | |
tree | 4b21c563f4cd4e399fbc0b253bc2f15e822eae88 /src/ProtocolBuffers/Collections/ReadOnlyDictionary.cs | |
parent | f0589506c96600dcd01319b9d1929d87505f3daa (diff) | |
download | protobuf-6803686bc06c4d96afd9bd2637f7b37a58596699.tar.gz protobuf-6803686bc06c4d96afd9bd2637f7b37a58596699.tar.bz2 protobuf-6803686bc06c4d96afd9bd2637f7b37a58596699.zip |
First cut at new layout
Diffstat (limited to 'src/ProtocolBuffers/Collections/ReadOnlyDictionary.cs')
-rw-r--r-- | src/ProtocolBuffers/Collections/ReadOnlyDictionary.cs | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/ProtocolBuffers/Collections/ReadOnlyDictionary.cs b/src/ProtocolBuffers/Collections/ReadOnlyDictionary.cs new file mode 100644 index 00000000..cd4b1898 --- /dev/null +++ b/src/ProtocolBuffers/Collections/ReadOnlyDictionary.cs @@ -0,0 +1,112 @@ +// 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; +using System.Collections; +using System.Collections.Generic; + +namespace Google.ProtocolBuffers.Collections { + /// <summary> + /// Read-only wrapper around another dictionary. + /// </summary> + public sealed class ReadOnlyDictionary<TKey, TValue> : IDictionary<TKey, TValue> { + readonly IDictionary<TKey, TValue> wrapped; + + public ReadOnlyDictionary(IDictionary<TKey, TValue> wrapped) { + this.wrapped = wrapped; + } + + public void Add(TKey key, TValue value) { + throw new InvalidOperationException(); + } + + public bool ContainsKey(TKey key) { + return wrapped.ContainsKey(key); + } + + public ICollection<TKey> Keys { + get { return wrapped.Keys; } + } + + public bool Remove(TKey key) { + throw new InvalidOperationException(); + } + + public bool TryGetValue(TKey key, out TValue value) { + return wrapped.TryGetValue(key, out value); + } + + public ICollection<TValue> Values { + get { return wrapped.Values; } + } + + public TValue this[TKey key] { + get { + return wrapped[key]; + } + set { + throw new InvalidOperationException(); + } + } + + public void Add(KeyValuePair<TKey, TValue> item) { + throw new InvalidOperationException(); + } + + public void Clear() { + throw new InvalidOperationException(); + } + + public bool Contains(KeyValuePair<TKey, TValue> item) { + return wrapped.Contains(item); + } + + public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex) { + wrapped.CopyTo(array, arrayIndex); + } + + public int Count { + get { return wrapped.Count; } + } + + public bool IsReadOnly { + get { return true; } + } + + public bool Remove(KeyValuePair<TKey, TValue> item) { + throw new InvalidOperationException(); + } + + public IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator() { + return wrapped.GetEnumerator(); + } + + IEnumerator IEnumerable.GetEnumerator() { + return ((IEnumerable) wrapped).GetEnumerator(); + } + + public override bool Equals(object obj) { + return wrapped.Equals(obj); + } + + public override int GetHashCode() { + return wrapped.GetHashCode(); + } + + public override string ToString() { + return wrapped.ToString(); + } + } +} |