// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
#nullable disable
 
using System.IO;
using Microsoft.AspNetCore.Razor.Language.Intermediate;
 
namespace Microsoft.AspNetCore.Razor.Language.IntegrationTests;
 
public static class IntermediateNodeSerializer
{
    public static string Serialize(IntermediateNode node)
    {
        using (var writer = new StringWriter())
        {
            var walker = new Walker(writer);
            walker.Visit(node);
 
            return writer.ToString();
        }
    }
 
    private class Walker : IntermediateNodeWalker
    {
        private readonly IntermediateNodeWriter _visitor;
        private readonly TextWriter _writer;
 
        public Walker(TextWriter writer)
        {
            _visitor = new IntermediateNodeWriter(writer);
            _writer = writer;
        }
 
        public TextWriter Writer { get; }
 
        public override void VisitDefault(IntermediateNode node)
        {
            _visitor.Visit(node);
            _writer.WriteLine();
 
            _visitor.Depth++;
            base.VisitDefault(node);
            _visitor.Depth--;
        }
    }
}