File: ToString.cs

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// Licensed to the Apache Software Foundation(ASF) under one
// or more contributor license agreements.See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.

using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Text;
using Thrift.Protocol;

namespace Thrift.Protocol
{


    public static class ToStringExtensions
    {
        public static void ToString(this object self, StringBuilder sb, bool first = true)
        {
            if (!first)
                sb.Append(", ");

            bool first_child = true;
            if (self is string str) // string is IEnumerable
            {
                sb.Append('"');
                sb.Append(str);
                sb.Append('"');
            }
            else if (self is IDictionary dict)
            {
                sb.Append("{ ");
                foreach (DictionaryEntry pair in dict)
                {
                    if (first_child)
                        first_child = false;
                    else
                        sb.Append(',');

                    sb.Append("{ ");
                    pair.Key.ToString(sb);
                    sb.Append(", ");
                    pair.Value.ToString(sb);
                    sb.Append('}');
                }
                sb.Append('}');
            }
            else if (self is IEnumerable enumerable)
            {
                sb.Append("{ ");
                foreach (var elm in enumerable)
                {
                    elm.ToString(sb, first_child);
                    first_child = false;
                }
                sb.Append('}');
            }
            else if (self is TBase tbase)
            {
                sb.Append(tbase.ToString());
            }
            else if (self is double dbVal)
            {
                sb.Append(dbVal.ToString(CultureInfo.InvariantCulture));
            }
            else
            {
                sb.Append(self != null ? self.ToString() : "<null>");
            }
        }
    }


}