// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;

namespace Microsoft.AspNetCore.Razor.Evolution
{
    public static class RazorCodeDocumentExtensions
    {
        public static RazorSyntaxTree GetSyntaxTree(this RazorCodeDocument document)
        {
            if (document == null)
            {
                throw new ArgumentNullException(nameof(document));
            }

            return document.Items[typeof(RazorSyntaxTree)] as RazorSyntaxTree;
        }

        public static void SetSyntaxTree(this RazorCodeDocument document, RazorSyntaxTree syntaxTree)
        {
            if (document == null)
            {
                throw new ArgumentNullException(nameof(document));
            }

            document.Items[typeof(RazorSyntaxTree)] = syntaxTree;
        }
    }
}