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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Data
{
using System;
using System.Diagnostics;
using SimpleJson;
[DebuggerDisplay("{Data}")]
public class IntermediateFieldValue
{
public string Context { get; internal set; }
internal object Data { get; set; }
public IntermediateFieldValue PreviousValue { get; internal set; }
public static explicit operator bool(IntermediateFieldValue value) => value.AsBool();
public static explicit operator bool? (IntermediateFieldValue value) => value.AsNullableBool();
public static explicit operator int(IntermediateFieldValue value) => value.AsNumber();
public static explicit operator int? (IntermediateFieldValue value) => value.AsNullableNumber();
public static explicit operator IntermediateFieldPathValue(IntermediateFieldValue value) => value.AsPath();
public static explicit operator string(IntermediateFieldValue value) => value.AsString();
internal static IntermediateFieldValue Deserialize(JsonObject jsonObject, Uri baseUri, IntermediateFieldType type)
{
var context = jsonObject.GetValueOrDefault<string>("context");
if (!jsonObject.TryGetValue("data", out var data))
{
throw new ArgumentException();
}
var value = data;
switch (value)
{
case int intData:
switch (type)
{
case IntermediateFieldType.Bool:
value = intData != 0;
break;
case IntermediateFieldType.LargeNumber:
value = Convert.ToInt64(data);
break;
case IntermediateFieldType.Path:
case IntermediateFieldType.String:
value = intData.ToString();
break;
}
break;
case long longData:
switch (type)
{
case IntermediateFieldType.Bool:
value = longData != 0;
break;
case IntermediateFieldType.Number:
value = Convert.ToInt32(longData);
break;
case IntermediateFieldType.Path:
case IntermediateFieldType.String:
value = longData.ToString();
break;
}
break;
case JsonObject jsonData:
jsonData.TryGetValue("embed", out var embed);
value = new IntermediateFieldPathValue
{
BaseUri = (embed != null) ? baseUri : null,
Embed = embed != null,
Path = jsonData.GetValueOrDefault<string>("path"),
};
break;
// Nothing to do for this case, so leave it out.
// case string stringData:
// break;
}
var previousValueJson = jsonObject.GetValueOrDefault<JsonObject>("prev");
var previousValue = (previousValueJson == null) ? null : IntermediateFieldValue.Deserialize(previousValueJson, baseUri, type);
return new IntermediateFieldValue
{
Context = context,
Data = value,
PreviousValue = previousValue
};
}
internal JsonObject Serialize()
{
var jsonObject = new JsonObject();
if (!String.IsNullOrEmpty(this.Context))
{
jsonObject.Add("context", this.Context);
}
if (this.Data is IntermediateFieldPathValue pathField)
{
var jsonData = new JsonObject();
// pathField.BaseUri is set during load, not saved.
if (pathField.Embed)
{
jsonData.Add("embed", "true");
}
if (!String.IsNullOrEmpty(pathField.Path))
{
jsonData.Add("path", pathField.Path);
}
jsonObject.Add("data", jsonData);
}
else
{
jsonObject.Add("data", this.Data);
}
if (this.PreviousValue != null)
{
var previousValueJson = this.PreviousValue.Serialize();
jsonObject.Add("prev", previousValueJson);
}
return jsonObject;
}
}
}
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