// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using System.Collections;
using System.Collections.Generic;
 
namespace Microsoft.CodeAnalysis.EmbeddedLanguages.VirtualChars;
 
internal partial struct VirtualCharSequence
{
    public struct Enumerator(VirtualCharSequence virtualCharSequence) : IEnumerator<VirtualChar>
    {
        private int _position = -1;
 
        public bool MoveNext() => ++_position < virtualCharSequence.Length;
        public readonly VirtualChar Current => virtualCharSequence[_position];
 
        public void Reset()
            => _position = -1;
 
        readonly object? IEnumerator.Current => this.Current;
        public readonly void Dispose() { }
    }
}