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// Copyright 2019 DeepMind Technologies Limited
//
// 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 Mujoco {
// An implementation of IList<T>, only missing the indexer and the count.
public abstract class FixedSizeIListHelper<T> : IList<T> {
public IEnumerator<T> GetEnumerator() {
for (int i = 0; i < this.Count; ++i) {
yield return this[i];
}
}
IEnumerator IEnumerable.GetEnumerator() {
return GetEnumerator();
}
public void Add(T item) {
throw new NotSupportedException();
}
public void Clear() {
throw new NotSupportedException();
}
public bool Contains(T item) {
for (int i = 0; i < Count; ++i) {
if (this[i].Equals(item)) {
return true;
}
}
return false;
}
public void CopyTo(T[] array, int arrayIndex) {
for (int i = 0; i < Count; ++i) {
array[arrayIndex + i] = this[i];
}
}
public bool Remove(T item) {
throw new NotSupportedException();
}
public bool IsReadOnly => false;
public int IndexOf(T item) {
for (int i = 0; i < Count; ++i) {
if (this[i].Equals(item)) {
return i;
}
}
return -1;
}
public void Insert(int index, T item) {
throw new NotSupportedException();
}
public void RemoveAt(int index) {
throw new NotSupportedException();
}
public abstract int Count { get; }
public abstract T this[int index] {
get;
set;
}
}
}
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