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JsonEventEmitter.cs
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JsonEventEmitter.cs
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// This file is part of YamlDotNet - A .NET library for YAML.
// Copyright (c) Antoine Aubry and contributors
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
using System;
using YamlDotNet.Core;
using YamlDotNet.Core.Events;
namespace YamlDotNet.Serialization.EventEmitters
{
public sealed class JsonEventEmitter : ChainedEventEmitter
{
public JsonEventEmitter(IEventEmitter nextEmitter)
: base(nextEmitter)
{
}
public override void Emit(AliasEventInfo eventInfo, IEmitter emitter)
{
eventInfo.NeedsExpansion = true;
}
public override void Emit(ScalarEventInfo eventInfo, IEmitter emitter)
{
eventInfo.IsPlainImplicit = true;
eventInfo.Style = ScalarStyle.Plain;
var value = eventInfo.Source.Value;
if (value == null)
{
eventInfo.RenderedValue = "null";
}
else
{
var typeCode = eventInfo.Source.Type.GetTypeCode();
switch (typeCode)
{
case TypeCode.Boolean:
eventInfo.RenderedValue = YamlFormatter.FormatBoolean(value);
break;
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
case TypeCode.SByte:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
var valueIsEnum = eventInfo.Source.Type.IsEnum();
if (valueIsEnum)
{
eventInfo.RenderedValue = value.ToString()!;
eventInfo.Style = ScalarStyle.DoubleQuoted;
break;
}
eventInfo.RenderedValue = YamlFormatter.FormatNumber(value);
break;
case TypeCode.Single:
case TypeCode.Double:
case TypeCode.Decimal:
eventInfo.RenderedValue = YamlFormatter.FormatNumber(value);
break;
case TypeCode.String:
case TypeCode.Char:
eventInfo.RenderedValue = value.ToString()!;
eventInfo.Style = ScalarStyle.DoubleQuoted;
break;
case TypeCode.DateTime:
eventInfo.RenderedValue = YamlFormatter.FormatDateTime(value);
break;
case TypeCode.Empty:
eventInfo.RenderedValue = "null";
break;
default:
if (eventInfo.Source.Type == typeof(TimeSpan))
{
eventInfo.RenderedValue = YamlFormatter.FormatTimeSpan(value);
break;
}
throw new NotSupportedException($"TypeCode.{typeCode} is not supported.");
}
}
base.Emit(eventInfo, emitter);
}
public override void Emit(MappingStartEventInfo eventInfo, IEmitter emitter)
{
eventInfo.Style = MappingStyle.Flow;
base.Emit(eventInfo, emitter);
}
public override void Emit(SequenceStartEventInfo eventInfo, IEmitter emitter)
{
eventInfo.Style = SequenceStyle.Flow;
base.Emit(eventInfo, emitter);
}
}
}