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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.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Shared.Extensions;
using Microsoft.CodeAnalysis.Text;
using Roslyn.Utilities;
namespace Microsoft.CodeAnalysis.ValueTracking;
internal sealed class ValueTrackedItem
{
public SymbolKey SymbolKey { get; }
public ValueTrackedItem? Parent { get; }
public DocumentId DocumentId { get; }
public TextSpan Span { get; }
public SourceText SourceText { get; }
public Glyph Glyph { get; }
internal ValueTrackedItem(
SymbolKey symbolKey,
SourceText sourceText,
TextSpan textSpan,
DocumentId documentId,
Glyph glyph,
ValueTrackedItem? parent)
{
SymbolKey = symbolKey;
Parent = parent;
Glyph = glyph;
Span = textSpan;
SourceText = sourceText;
DocumentId = documentId;
}
public override string ToString()
{
var subText = SourceText.GetSubText(Span);
return subText.ToString();
}
public static async ValueTask<ValueTrackedItem?> TryCreateAsync(Solution solution, Location location, ISymbol symbol, ValueTrackedItem? parent = null, CancellationToken cancellationToken = default)
{
Contract.ThrowIfNull(location.SourceTree);
var document = solution.GetRequiredDocument(location.SourceTree);
var syntaxTree = await document.GetRequiredSyntaxTreeAsync(cancellationToken).ConfigureAwait(false);
var sourceText = await syntaxTree.GetTextAsync(cancellationToken).ConfigureAwait(false);
return new ValueTrackedItem(
SymbolKey.Create(symbol, cancellationToken),
sourceText,
location.SourceSpan,
document.Id,
symbol.GetGlyph(),
parent);
}
}
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