Import YamlDotNet.

Assets/YamlDotNet/Helpers/GenericDictionaryToNonGenericAdapter.cs

@@ -0,0 +1,167 @@
+// This file is part of YamlDotNet - A .NET library for YAML.
+// Copyright (c) Antoine Aubry and contributors
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+// of the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace YamlDotNet.Helpers
+{
+    /// <summary>
+    /// Adapts an <see cref="System.Collections.Generic.IDictionary{TKey, TValue}" /> to <see cref="IDictionary" />
+    /// because not all generic dictionaries implement <see cref="IDictionary" />.
+    /// </summary>
+    internal sealed class GenericDictionaryToNonGenericAdapter<TKey, TValue> : IDictionary
+        where TKey : notnull
+    {
+        private readonly IDictionary<TKey, TValue> genericDictionary;
+
+        public GenericDictionaryToNonGenericAdapter(IDictionary<TKey, TValue> genericDictionary)
+        {
+            this.genericDictionary = genericDictionary ?? throw new ArgumentNullException(nameof(genericDictionary));
+        }
+
+        public void Add(object key, object? value)
+        {
+            throw new NotSupportedException();
+        }
+
+        public void Clear()
+        {
+            throw new NotSupportedException();
+        }
+
+        public bool Contains(object key)
+        {
+            throw new NotSupportedException();
+        }
+
+        public IDictionaryEnumerator GetEnumerator()
+        {
+            return new DictionaryEnumerator(genericDictionary.GetEnumerator());
+        }
+
+        public bool IsFixedSize
+        {
+            get { throw new NotSupportedException(); }
+        }
+
+        public bool IsReadOnly
+        {
+            get { throw new NotSupportedException(); }
+        }
+
+        public ICollection Keys
+        {
+            get { throw new NotSupportedException(); }
+        }
+
+        public void Remove(object key)
+        {
+            throw new NotSupportedException();
+        }
+
+        public ICollection Values
+        {
+            get { throw new NotSupportedException(); }
+        }
+
+        public object? this[object key]
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+            set
+            {
+                genericDictionary[(TKey)key] = (TValue)value!;
+            }
+        }
+
+        public void CopyTo(Array array, int index)
+        {
+            throw new NotSupportedException();
+        }
+
+        public int Count
+        {
+            get { throw new NotSupportedException(); }
+        }
+
+        public bool IsSynchronized
+        {
+            get { throw new NotSupportedException(); }
+        }
+
+        public object SyncRoot
+        {
+            get { throw new NotSupportedException(); }
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+
+        private class DictionaryEnumerator : IDictionaryEnumerator
+        {
+            private readonly IEnumerator<KeyValuePair<TKey, TValue>> enumerator;
+
+            public DictionaryEnumerator(IEnumerator<KeyValuePair<TKey, TValue>> enumerator)
+            {
+                this.enumerator = enumerator;
+            }
+
+            public DictionaryEntry Entry
+            {
+                get
+                {
+                    return new DictionaryEntry(Key, Value);
+                }
+            }
+
+            public object Key
+            {
+                get { return enumerator.Current.Key!; }
+            }
+
+            public object? Value
+            {
+                get { return enumerator.Current.Value; }
+            }
+
+            public object Current
+            {
+                get { return Entry; }
+            }
+
+            public bool MoveNext()
+            {
+                return enumerator.MoveNext();
+            }
+
+            public void Reset()
+            {
+                enumerator.Reset();
+            }
+        }
+    }
+}