Add VRChat and GitHub packages to Unity project

Assets/Udon/Serialization/OdinSerializer/Utilities/Extensions/GarbageFreeIterators.cs

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+//-----------------------------------------------------------------------
+// <copyright file="GarbageFreeIterators.cs" company="Sirenix IVS">
+// Copyright (c) 2018 Sirenix IVS
+//
+// 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.
+// </copyright>
+//-----------------------------------------------------------------------
+namespace VRC.Udon.Serialization.OdinSerializer.Utilities
+{
+    using System;
+    using System.Collections.Generic;
+
+    /// <summary>
+    /// Garbage free enumerator methods.
+    /// </summary>
+    public static class GarbageFreeIterators
+    {
+        /// <summary>
+        /// Garbage free enumerator for lists.
+        /// </summary>
+        public static ListIterator<T> GFIterator<T>(this List<T> list)
+        {
+            return new ListIterator<T>(list);
+        }
+
+        /// <summary>
+        /// Garbage free enumerator for dictionaries.
+        /// </summary>
+        public static DictionaryIterator<T1, T2> GFIterator<T1, T2>(this Dictionary<T1, T2> dictionary)
+        {
+            return new DictionaryIterator<T1, T2>(dictionary);
+        }
+
+        /// <summary>
+        /// Garbage free enumator for dictionary values.
+        /// </summary>
+        public static DictionaryValueIterator<T1, T2> GFValueIterator<T1, T2>(this Dictionary<T1, T2> dictionary)
+        {
+            return new DictionaryValueIterator<T1, T2>(dictionary);
+        }
+
+        /// <summary>
+        /// Garbage free enumerator for hashsets.
+        /// </summary>
+        public static HashsetIterator<T> GFIterator<T>(this HashSet<T> hashset)
+        {
+            return new HashsetIterator<T>(hashset);
+        }
+
+        /// <summary>
+        /// List iterator.
+        /// </summary>
+        public struct ListIterator<T> : IDisposable
+        {
+            private bool isNull;
+            private List<T> list;
+            private List<T>.Enumerator enumerator;
+
+            /// <summary>
+            /// Creates a list iterator.
+            /// </summary>
+            public ListIterator(List<T> list)
+            {
+                this.isNull = list == null;
+                if (this.isNull)
+                {
+                    this.list = null;
+                    this.enumerator = new List<T>.Enumerator();
+                }
+                else
+                {
+                    this.list = list;
+                    this.enumerator = this.list.GetEnumerator();
+                }
+            }
+
+            /// <summary>
+            /// Gets the enumerator.
+            /// </summary>
+            public ListIterator<T> GetEnumerator()
+            {
+                return this;
+            }
+
+            /// <summary>
+            /// Gets the current value.
+            /// </summary>
+            public T Current
+            {
+                get
+                {
+                    return this.enumerator.Current;
+                }
+            }
+
+            /// <summary>
+            /// Moves to the next value.
+            /// </summary>
+            public bool MoveNext()
+            {
+                if (this.isNull)
+                {
+                    return false;
+                }
+                return this.enumerator.MoveNext();
+            }
+
+            /// <summary>
+            /// Disposes the iterator.
+            /// </summary>
+            public void Dispose()
+            {
+                this.enumerator.Dispose();
+            }
+        }
+
+        /// <summary>
+        /// Hashset iterator.
+        /// </summary>
+        public struct HashsetIterator<T> : IDisposable
+        {
+            private bool isNull;
+            private HashSet<T> hashset;
+            private HashSet<T>.Enumerator enumerator;
+
+            /// <summary>
+            /// Creates a hashset iterator.
+            /// </summary>
+            public HashsetIterator(HashSet<T> hashset)
+            {
+                this.isNull = hashset == null;
+                if (this.isNull)
+                {
+                    this.hashset = null;
+                    this.enumerator = new HashSet<T>.Enumerator();
+                }
+                else
+                {
+                    this.hashset = hashset;
+                    this.enumerator = this.hashset.GetEnumerator();
+                }
+            }
+
+            /// <summary>
+            /// Gets the enumerator.
+            /// </summary>
+            public HashsetIterator<T> GetEnumerator()
+            {
+                return this;
+            }
+
+            /// <summary>
+            /// Gets the current value.
+            /// </summary>
+            public T Current
+            {
+                get
+                {
+                    return this.enumerator.Current;
+                }
+            }
+
+            /// <summary>
+            /// Moves to the next value.
+            /// </summary>
+            public bool MoveNext()
+            {
+                if (this.isNull)
+                {
+                    return false;
+                }
+                return this.enumerator.MoveNext();
+            }
+
+			/// <summary>
+            /// Disposes the iterator.
+            /// </summary>
+            public void Dispose()
+            {
+                this.enumerator.Dispose();
+            }
+        }
+
+        /// <summary>
+        /// Dictionary iterator.
+        /// </summary>
+        public struct DictionaryIterator<T1, T2> : IDisposable
+        {
+            private Dictionary<T1, T2> dictionary;
+            private Dictionary<T1, T2>.Enumerator enumerator;
+            private bool isNull;
+
+            /// <summary>
+            /// Creates a dictionary iterator.
+            /// </summary>
+            public DictionaryIterator(Dictionary<T1, T2> dictionary)
+            {
+                this.isNull = dictionary == null;
+
+                if (this.isNull)
+                {
+                    this.dictionary = null;
+                    this.enumerator = new Dictionary<T1, T2>.Enumerator();
+                }
+                else
+                {
+                    this.dictionary = dictionary;
+                    this.enumerator = this.dictionary.GetEnumerator();
+                }
+            }
+
+            /// <summary>
+            /// Gets the enumerator.
+            /// </summary>
+            public DictionaryIterator<T1, T2> GetEnumerator()
+            {
+                return this;
+            }
+
+            /// <summary>
+            /// Gets the current value.
+            /// </summary>
+            public KeyValuePair<T1, T2> Current
+            {
+                get
+                {
+                    return this.enumerator.Current;
+                }
+            }
+
+            /// <summary>
+            /// Moves to the next value.
+            /// </summary>
+            public bool MoveNext()
+            {
+                if (this.isNull)
+                {
+                    return false;
+                }
+                return this.enumerator.MoveNext();
+            }
+
+            /// <summary>
+            /// Disposes the iterator.
+            /// </summary>
+            public void Dispose()
+            {
+                this.enumerator.Dispose();
+            }
+        }
+
+        /// <summary>
+        /// Dictionary value iterator.
+        /// </summary>
+        public struct DictionaryValueIterator<T1, T2> : IDisposable
+        {
+            private Dictionary<T1, T2> dictionary;
+            private Dictionary<T1, T2>.Enumerator enumerator;
+            private bool isNull;
+
+            /// <summary>
+            /// Creates a dictionary value iterator.
+            /// </summary>
+            public DictionaryValueIterator(Dictionary<T1, T2> dictionary)
+            {
+                this.isNull = dictionary == null;
+
+                if (this.isNull)
+                {
+                    this.dictionary = null;
+                    this.enumerator = new Dictionary<T1, T2>.Enumerator();
+                }
+                else
+                {
+                    this.dictionary = dictionary;
+                    this.enumerator = this.dictionary.GetEnumerator();
+                }
+            }
+
+            /// <summary>
+            /// Gets the enumerator.
+            /// </summary>
+            public DictionaryValueIterator<T1, T2> GetEnumerator()
+            {
+                return this;
+            }
+
+            /// <summary>
+            /// Gets the current value.
+            /// </summary>
+            public T2 Current
+            {
+                get
+                {
+                    return this.enumerator.Current.Value;
+                }
+            }
+
+            /// <summary>
+            /// Moves to the next value.
+            /// </summary>
+            public bool MoveNext()
+            {
+                if (this.isNull)
+                {
+                    return false;
+                }
+                return this.enumerator.MoveNext();
+            }
+
+            /// <summary>
+            /// Disposes the iterator.
+            /// </summary>
+            public void Dispose()
+            {
+                this.enumerator.Dispose();
+            }
+        }
+    }
+}