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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;
using Microsoft.CodeAnalysis.Text;
namespace Microsoft.CodeAnalysis.CodeGen
{
/// <summary>
/// Represents a sequence point before translation by #line/ExternalSource directives.
/// </summary>
[DebuggerDisplay("{GetDebuggerDisplay(),nq}")]
internal readonly struct RawSequencePoint
{
internal readonly SyntaxTree SyntaxTree;
internal readonly int ILMarker;
internal readonly TextSpan Span;
// Special text span indicating a hidden sequence point.
internal static readonly TextSpan HiddenSequencePointSpan = new TextSpan(0x7FFFFFFF, 0);
internal RawSequencePoint(SyntaxTree syntaxTree, int ilMarker, TextSpan span)
{
this.SyntaxTree = syntaxTree;
this.ILMarker = ilMarker;
this.Span = span;
}
private string GetDebuggerDisplay()
{
return string.Format("#{0}: {1}", ILMarker, Span == HiddenSequencePointSpan ? "hidden" : Span.ToString());
}
}
}
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