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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;
using Microsoft.CodeAnalysis.Text;
using Roslyn.Utilities;
namespace Microsoft.CodeAnalysis
{
/// <summary>
/// A program location in source code.
/// </summary>
internal sealed class ExternalFileLocation : Location, IEquatable<ExternalFileLocation?>
{
private readonly TextSpan _sourceSpan;
private readonly FileLinePositionSpan _lineSpan, _mappedLineSpan;
internal ExternalFileLocation(string filePath, TextSpan sourceSpan, LinePositionSpan lineSpan)
{
_sourceSpan = sourceSpan;
_lineSpan = new FileLinePositionSpan(filePath, lineSpan);
_mappedLineSpan = _lineSpan;
}
internal ExternalFileLocation(string filePath, TextSpan sourceSpan, LinePositionSpan lineSpan, string mappedFilePath, LinePositionSpan mappedLineSpan)
{
_sourceSpan = sourceSpan;
_lineSpan = new FileLinePositionSpan(filePath, lineSpan);
_mappedLineSpan = new FileLinePositionSpan(mappedFilePath, mappedLineSpan, hasMappedPath: true);
}
public override TextSpan SourceSpan
{
get
{
return _sourceSpan;
}
}
public override FileLinePositionSpan GetLineSpan()
{
return _lineSpan;
}
public override FileLinePositionSpan GetMappedLineSpan()
{
return _mappedLineSpan;
}
public override LocationKind Kind
{
get
{
return LocationKind.ExternalFile;
}
}
public override bool Equals(object? obj)
{
return this.Equals(obj as ExternalFileLocation);
}
public bool Equals(ExternalFileLocation? obj)
{
if (ReferenceEquals(obj, this))
{
return true;
}
return obj != null
&& _sourceSpan == obj._sourceSpan
&& _lineSpan.Equals(obj._lineSpan)
&& _mappedLineSpan.Equals(obj._mappedLineSpan);
}
public override int GetHashCode()
{
return Hash.Combine(_lineSpan.GetHashCode(),
Hash.Combine(_mappedLineSpan.GetHashCode(), _sourceSpan.GetHashCode()));
}
}
}
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