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// 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.Diagnostics.CodeAnalysis;
using System.Threading;
using System.Threading.Tasks;
namespace Microsoft.CodeAnalysis;
/// <summary>
/// This value source keeps a strong reference to a value.
/// </summary>
internal sealed class ConstantTextAndVersionSource(TextAndVersion value) : ITextAndVersionSource
{
private readonly TextAndVersion _value = value;
public bool CanReloadText
=> false;
/// <summary>
/// Not built from a text loader.
/// </summary>
public TextLoader? TextLoader
=> null;
public TextAndVersion GetValue(LoadTextOptions options, CancellationToken cancellationToken)
=> _value;
public Task<TextAndVersion> GetValueAsync(LoadTextOptions options, CancellationToken cancellationToken)
=> Task.FromResult(_value);
public bool TryGetValue(LoadTextOptions options, [MaybeNullWhen(false)] out TextAndVersion value)
{
value = _value;
return true;
}
public bool TryGetVersion(LoadTextOptions options, out VersionStamp version)
{
version = _value.Version;
return true;
}
public ValueTask<VersionStamp> GetVersionAsync(LoadTextOptions options, CancellationToken cancellationToken)
=> new(_value.Version);
}
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