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//
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
//
// This file contain implementations details that are subject to change without notice.
// Use at your own risk.
//
namespace Microsoft.VisualStudio.Text.Projection.Implementation
{
using System;
using System.ComponentModel.Composition;
using Microsoft.VisualStudio.Text.Utilities;
[Export(typeof(IBufferGraphFactoryService))]
internal sealed class BufferGraphFactoryService : IBufferGraphFactoryService
{
[Import]
internal GuardedOperations GuardedOperations = null;
public IBufferGraph CreateBufferGraph(ITextBuffer textBuffer)
{
if (textBuffer == null)
{
throw new ArgumentNullException(nameof(textBuffer));
}
return textBuffer.Properties.GetOrCreateSingletonProperty<BufferGraph>(() => (new BufferGraph(textBuffer, GuardedOperations)));
}
}
}
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