989 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			C#
		
	
	
	
			
		
		
	
	
			989 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			C#
		
	
	
	
| #region Header
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| /**
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|  * JsonMapper.cs
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|  *   JSON to .Net object and object to JSON conversions.
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|  *
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|  * The authors disclaim copyright to this source code. For more details, see
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|  * the COPYING file included with this distribution.
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|  **/
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| #endregion
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| 
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| 
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| using System;
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| using System.Collections;
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| using System.Collections.Generic;
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| using System.Globalization;
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| using System.IO;
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| using System.Reflection;
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| 
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| 
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| namespace AnyThinkAds.ThirdParty.LitJson
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| {
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|     internal struct PropertyMetadata
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|     {
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|         public MemberInfo Info;
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|         public bool       IsField;
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|         public Type       Type;
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|     }
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| 
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| 
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|     internal struct ArrayMetadata
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|     {
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|         private Type element_type;
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|         private bool is_array;
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|         private bool is_list;
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| 
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| 
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|         public Type ElementType {
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|             get {
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|                 if (element_type == null)
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|                     return typeof (JsonData);
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| 
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|                 return element_type;
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|             }
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| 
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|             set { element_type = value; }
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|         }
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| 
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|         public bool IsArray {
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|             get { return is_array; }
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|             set { is_array = value; }
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|         }
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| 
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|         public bool IsList {
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|             get { return is_list; }
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|             set { is_list = value; }
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|         }
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|     }
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| 
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| 
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|     internal struct ObjectMetadata
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|     {
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|         private Type element_type;
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|         private bool is_dictionary;
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| 
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|         private IDictionary<string, PropertyMetadata> properties;
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| 
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| 
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|         public Type ElementType {
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|             get {
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|                 if (element_type == null)
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|                     return typeof (JsonData);
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| 
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|                 return element_type;
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|             }
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| 
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|             set { element_type = value; }
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|         }
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| 
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|         public bool IsDictionary {
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|             get { return is_dictionary; }
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|             set { is_dictionary = value; }
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|         }
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| 
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|         public IDictionary<string, PropertyMetadata> Properties {
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|             get { return properties; }
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|             set { properties = value; }
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|         }
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|     }
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| 
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| 
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|     internal delegate void ExporterFunc    (object obj, JsonWriter writer);
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|     public   delegate void ExporterFunc<T> (T obj, JsonWriter writer);
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| 
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|     internal delegate object ImporterFunc                (object input);
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|     public   delegate TValue ImporterFunc<TJson, TValue> (TJson input);
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| 
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|     public delegate IJsonWrapper WrapperFactory ();
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| 
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| 
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|     public class JsonMapper
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|     {
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|         #region Fields
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|         private static readonly int max_nesting_depth;
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| 
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|         private static readonly IFormatProvider datetime_format;
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| 
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|         private static readonly IDictionary<Type, ExporterFunc> base_exporters_table;
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|         private static readonly IDictionary<Type, ExporterFunc> custom_exporters_table;
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| 
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|         private static readonly IDictionary<Type,
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|                 IDictionary<Type, ImporterFunc>> base_importers_table;
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|         private static readonly IDictionary<Type,
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|                 IDictionary<Type, ImporterFunc>> custom_importers_table;
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| 
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|         private static readonly IDictionary<Type, ArrayMetadata> array_metadata;
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|         private static readonly object array_metadata_lock = new Object ();
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| 
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|         private static readonly IDictionary<Type,
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|                 IDictionary<Type, MethodInfo>> conv_ops;
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|         private static readonly object conv_ops_lock = new Object ();
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| 
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|         private static readonly IDictionary<Type, ObjectMetadata> object_metadata;
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|         private static readonly object object_metadata_lock = new Object ();
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| 
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|         private static readonly IDictionary<Type,
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|                 IList<PropertyMetadata>> type_properties;
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|         private static readonly object type_properties_lock = new Object ();
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| 
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|         private static readonly JsonWriter      static_writer;
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|         private static readonly object static_writer_lock = new Object ();
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|         #endregion
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| 
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| 
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|         #region Constructors
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|         static JsonMapper ()
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|         {
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|             max_nesting_depth = 100;
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| 
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|             array_metadata = new Dictionary<Type, ArrayMetadata> ();
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|             conv_ops = new Dictionary<Type, IDictionary<Type, MethodInfo>> ();
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|             object_metadata = new Dictionary<Type, ObjectMetadata> ();
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|             type_properties = new Dictionary<Type,
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|                             IList<PropertyMetadata>> ();
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| 
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|             static_writer = new JsonWriter ();
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| 
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|             datetime_format = DateTimeFormatInfo.InvariantInfo;
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| 
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|             base_exporters_table   = new Dictionary<Type, ExporterFunc> ();
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|             custom_exporters_table = new Dictionary<Type, ExporterFunc> ();
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| 
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|             base_importers_table = new Dictionary<Type,
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|                                  IDictionary<Type, ImporterFunc>> ();
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|             custom_importers_table = new Dictionary<Type,
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|                                    IDictionary<Type, ImporterFunc>> ();
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| 
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|             RegisterBaseExporters ();
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|             RegisterBaseImporters ();
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|         }
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|         #endregion
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| 
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| 
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|         #region Private Methods
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|         private static void AddArrayMetadata (Type type)
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|         {
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|             if (array_metadata.ContainsKey (type))
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|                 return;
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| 
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|             ArrayMetadata data = new ArrayMetadata ();
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| 
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|             data.IsArray = type.IsArray;
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| 
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|             if (type.GetInterface ("System.Collections.IList") != null)
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|                 data.IsList = true;
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| 
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|             foreach (PropertyInfo p_info in type.GetProperties ()) {
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|                 if (p_info.Name != "Item")
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|                     continue;
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| 
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|                 ParameterInfo[] parameters = p_info.GetIndexParameters ();
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| 
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|                 if (parameters.Length != 1)
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|                     continue;
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| 
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|                 if (parameters[0].ParameterType == typeof (int))
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|                     data.ElementType = p_info.PropertyType;
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|             }
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| 
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|             lock (array_metadata_lock) {
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|                 try {
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|                     array_metadata.Add (type, data);
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|                 } catch (ArgumentException) {
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|                     return;
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|                 }
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|             }
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|         }
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| 
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|         private static void AddObjectMetadata (Type type)
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|         {
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|             if (object_metadata.ContainsKey (type))
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|                 return;
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| 
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|             ObjectMetadata data = new ObjectMetadata ();
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| 
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|             if (type.GetInterface ("System.Collections.IDictionary") != null)
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|                 data.IsDictionary = true;
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| 
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|             data.Properties = new Dictionary<string, PropertyMetadata> ();
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| 
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|             foreach (PropertyInfo p_info in type.GetProperties ()) {
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|                 if (p_info.Name == "Item") {
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|                     ParameterInfo[] parameters = p_info.GetIndexParameters ();
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| 
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|                     if (parameters.Length != 1)
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|                         continue;
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| 
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|                     if (parameters[0].ParameterType == typeof (string))
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|                         data.ElementType = p_info.PropertyType;
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| 
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|                     continue;
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|                 }
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| 
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|                 PropertyMetadata p_data = new PropertyMetadata ();
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|                 p_data.Info = p_info;
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|                 p_data.Type = p_info.PropertyType;
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| 
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|                 data.Properties.Add (p_info.Name, p_data);
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|             }
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| 
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|             foreach (FieldInfo f_info in type.GetFields ()) {
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|                 PropertyMetadata p_data = new PropertyMetadata ();
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|                 p_data.Info = f_info;
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|                 p_data.IsField = true;
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|                 p_data.Type = f_info.FieldType;
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| 
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|                 data.Properties.Add (f_info.Name, p_data);
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|             }
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| 
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|             lock (object_metadata_lock) {
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|                 try {
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|                     object_metadata.Add (type, data);
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|                 } catch (ArgumentException) {
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|                     return;
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|                 }
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|             }
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|         }
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| 
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|         private static void AddTypeProperties (Type type)
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|         {
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|             if (type_properties.ContainsKey (type))
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|                 return;
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| 
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|             IList<PropertyMetadata> props = new List<PropertyMetadata> ();
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| 
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|             foreach (PropertyInfo p_info in type.GetProperties ()) {
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|                 if (p_info.Name == "Item")
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|                     continue;
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| 
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|                 PropertyMetadata p_data = new PropertyMetadata ();
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|                 p_data.Info = p_info;
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|                 p_data.IsField = false;
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|                 props.Add (p_data);
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|             }
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| 
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|             foreach (FieldInfo f_info in type.GetFields ()) {
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|                 PropertyMetadata p_data = new PropertyMetadata ();
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|                 p_data.Info = f_info;
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|                 p_data.IsField = true;
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| 
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|                 props.Add (p_data);
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|             }
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| 
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|             lock (type_properties_lock) {
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|                 try {
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|                     type_properties.Add (type, props);
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|                 } catch (ArgumentException) {
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|                     return;
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|                 }
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|             }
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|         }
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| 
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|         private static MethodInfo GetConvOp (Type t1, Type t2)
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|         {
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|             lock (conv_ops_lock) {
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|                 if (! conv_ops.ContainsKey (t1))
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|                     conv_ops.Add (t1, new Dictionary<Type, MethodInfo> ());
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|             }
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| 
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|             if (conv_ops[t1].ContainsKey (t2))
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|                 return conv_ops[t1][t2];
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| 
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|             MethodInfo op = t1.GetMethod (
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|                 "op_Implicit", new Type[] { t2 });
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| 
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|             lock (conv_ops_lock) {
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|                 try {
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|                     conv_ops[t1].Add (t2, op);
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|                 } catch (ArgumentException) {
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|                     return conv_ops[t1][t2];
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|                 }
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|             }
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| 
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|             return op;
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|         }
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| 
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|         private static object ReadValue (Type inst_type, JsonReader reader)
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|         {
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|             reader.Read ();
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| 
 | |
|             if (reader.Token == JsonToken.ArrayEnd)
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|                 return null;
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| 
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|             Type underlying_type = Nullable.GetUnderlyingType(inst_type);
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|             Type value_type = underlying_type ?? inst_type;
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| 
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|             if (reader.Token == JsonToken.Null) {
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|                 #if NETSTANDARD1_5
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|                 if (inst_type.IsClass() || underlying_type != null) {
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|                     return null;
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|                 }
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|                 #else
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|                 if (inst_type.IsClass || underlying_type != null) {
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|                     return null;
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|                 }
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|                 #endif
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| 
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|                 throw new JsonException (String.Format (
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|                             "Can't assign null to an instance of type {0}",
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|                             inst_type));
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|             }
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| 
 | |
|             if (reader.Token == JsonToken.Double ||
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|                 reader.Token == JsonToken.Int ||
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|                 reader.Token == JsonToken.Long ||
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|                 reader.Token == JsonToken.String ||
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|                 reader.Token == JsonToken.Boolean) {
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| 
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|                 Type json_type = reader.Value.GetType ();
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| 
 | |
|                 if (value_type.IsAssignableFrom (json_type))
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|                     return reader.Value;
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| 
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|                 // If there's a custom importer that fits, use it
 | |
|                 if (custom_importers_table.ContainsKey (json_type) &&
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|                     custom_importers_table[json_type].ContainsKey (
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|                         value_type)) {
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| 
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|                     ImporterFunc importer =
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|                         custom_importers_table[json_type][value_type];
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| 
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|                     return importer (reader.Value);
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|                 }
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| 
 | |
|                 // Maybe there's a base importer that works
 | |
|                 if (base_importers_table.ContainsKey (json_type) &&
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|                     base_importers_table[json_type].ContainsKey (
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|                         value_type)) {
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| 
 | |
|                     ImporterFunc importer =
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|                         base_importers_table[json_type][value_type];
 | |
| 
 | |
|                     return importer (reader.Value);
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|                 }
 | |
| 
 | |
|                 // Maybe it's an enum
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|                 #if NETSTANDARD1_5
 | |
|                 if (value_type.IsEnum())
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|                     return Enum.ToObject (value_type, reader.Value);
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|                 #else
 | |
|                 if (value_type.IsEnum)
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|                     return Enum.ToObject (value_type, reader.Value);
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|                 #endif
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|                 // Try using an implicit conversion operator
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|                 MethodInfo conv_op = GetConvOp (value_type, json_type);
 | |
| 
 | |
|                 if (conv_op != null)
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|                     return conv_op.Invoke (null,
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|                                            new object[] { reader.Value });
 | |
| 
 | |
|                 // No luck
 | |
|                 throw new JsonException (String.Format (
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|                         "Can't assign value '{0}' (type {1}) to type {2}",
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|                         reader.Value, json_type, inst_type));
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|             }
 | |
| 
 | |
|             object instance = null;
 | |
| 
 | |
|             if (reader.Token == JsonToken.ArrayStart) {
 | |
| 
 | |
|                 AddArrayMetadata (inst_type);
 | |
|                 ArrayMetadata t_data = array_metadata[inst_type];
 | |
| 
 | |
|                 if (! t_data.IsArray && ! t_data.IsList)
 | |
|                     throw new JsonException (String.Format (
 | |
|                             "Type {0} can't act as an array",
 | |
|                             inst_type));
 | |
| 
 | |
|                 IList list;
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|                 Type elem_type;
 | |
| 
 | |
|                 if (! t_data.IsArray) {
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|                     list = (IList) Activator.CreateInstance (inst_type);
 | |
|                     elem_type = t_data.ElementType;
 | |
|                 } else {
 | |
|                     list = new ArrayList ();
 | |
|                     elem_type = inst_type.GetElementType ();
 | |
|                 }
 | |
| 
 | |
|                 list.Clear();
 | |
| 
 | |
|                 while (true) {
 | |
|                     object item = ReadValue (elem_type, reader);
 | |
|                     if (item == null && reader.Token == JsonToken.ArrayEnd)
 | |
|                         break;
 | |
| 
 | |
|                     list.Add (item);
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|                 }
 | |
| 
 | |
|                 if (t_data.IsArray) {
 | |
|                     int n = list.Count;
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|                     instance = Array.CreateInstance (elem_type, n);
 | |
| 
 | |
|                     for (int i = 0; i < n; i++)
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|                         ((Array) instance).SetValue (list[i], i);
 | |
|                 } else
 | |
|                     instance = list;
 | |
| 
 | |
|             } else if (reader.Token == JsonToken.ObjectStart) {
 | |
|                 AddObjectMetadata (value_type);
 | |
|                 ObjectMetadata t_data = object_metadata[value_type];
 | |
| 
 | |
|                 instance = Activator.CreateInstance (value_type);
 | |
| 
 | |
|                 while (true) {
 | |
|                     reader.Read ();
 | |
| 
 | |
|                     if (reader.Token == JsonToken.ObjectEnd)
 | |
|                         break;
 | |
| 
 | |
|                     string property = (string) reader.Value;
 | |
| 
 | |
|                     if (t_data.Properties.ContainsKey (property)) {
 | |
|                         PropertyMetadata prop_data =
 | |
|                             t_data.Properties[property];
 | |
| 
 | |
|                         if (prop_data.IsField) {
 | |
|                             ((FieldInfo) prop_data.Info).SetValue (
 | |
|                                 instance, ReadValue (prop_data.Type, reader));
 | |
|                         } else {
 | |
|                             PropertyInfo p_info =
 | |
|                                 (PropertyInfo) prop_data.Info;
 | |
| 
 | |
|                             if (p_info.CanWrite)
 | |
|                                 p_info.SetValue (
 | |
|                                     instance,
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|                                     ReadValue (prop_data.Type, reader),
 | |
|                                     null);
 | |
|                             else
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|                                 ReadValue (prop_data.Type, reader);
 | |
|                         }
 | |
| 
 | |
|                     } else {
 | |
|                         if (! t_data.IsDictionary) {
 | |
| 
 | |
|                             if (! reader.SkipNonMembers) {
 | |
|                                 throw new JsonException (String.Format (
 | |
|                                         "The type {0} doesn't have the " +
 | |
|                                         "property '{1}'",
 | |
|                                         inst_type, property));
 | |
|                             } else {
 | |
|                                 ReadSkip (reader);
 | |
|                                 continue;
 | |
|                             }
 | |
|                         }
 | |
| 
 | |
|                         ((IDictionary) instance).Add (
 | |
|                             property, ReadValue (
 | |
|                                 t_data.ElementType, reader));
 | |
|                     }
 | |
| 
 | |
|                 }
 | |
| 
 | |
|             }
 | |
| 
 | |
|             return instance;
 | |
|         }
 | |
| 
 | |
|         private static IJsonWrapper ReadValue (WrapperFactory factory,
 | |
|                                                JsonReader reader)
 | |
|         {
 | |
|             reader.Read ();
 | |
| 
 | |
|             if (reader.Token == JsonToken.ArrayEnd ||
 | |
|                 reader.Token == JsonToken.Null)
 | |
|                 return null;
 | |
| 
 | |
|             IJsonWrapper instance = factory ();
 | |
| 
 | |
|             if (reader.Token == JsonToken.String) {
 | |
|                 instance.SetString ((string) reader.Value);
 | |
|                 return instance;
 | |
|             }
 | |
| 
 | |
|             if (reader.Token == JsonToken.Double) {
 | |
|                 instance.SetDouble ((double) reader.Value);
 | |
|                 return instance;
 | |
|             }
 | |
| 
 | |
|             if (reader.Token == JsonToken.Int) {
 | |
|                 instance.SetInt ((int) reader.Value);
 | |
|                 return instance;
 | |
|             }
 | |
| 
 | |
|             if (reader.Token == JsonToken.Long) {
 | |
|                 instance.SetLong ((long) reader.Value);
 | |
|                 return instance;
 | |
|             }
 | |
| 
 | |
|             if (reader.Token == JsonToken.Boolean) {
 | |
|                 instance.SetBoolean ((bool) reader.Value);
 | |
|                 return instance;
 | |
|             }
 | |
| 
 | |
|             if (reader.Token == JsonToken.ArrayStart) {
 | |
|                 instance.SetJsonType (JsonType.Array);
 | |
| 
 | |
|                 while (true) {
 | |
|                     IJsonWrapper item = ReadValue (factory, reader);
 | |
|                     if (item == null && reader.Token == JsonToken.ArrayEnd)
 | |
|                         break;
 | |
| 
 | |
|                     ((IList) instance).Add (item);
 | |
|                 }
 | |
|             }
 | |
|             else if (reader.Token == JsonToken.ObjectStart) {
 | |
|                 instance.SetJsonType (JsonType.Object);
 | |
| 
 | |
|                 while (true) {
 | |
|                     reader.Read ();
 | |
| 
 | |
|                     if (reader.Token == JsonToken.ObjectEnd)
 | |
|                         break;
 | |
| 
 | |
|                     string property = (string) reader.Value;
 | |
| 
 | |
|                     ((IDictionary) instance)[property] = ReadValue (
 | |
|                         factory, reader);
 | |
|                 }
 | |
| 
 | |
|             }
 | |
| 
 | |
|             return instance;
 | |
|         }
 | |
| 
 | |
|         private static void ReadSkip (JsonReader reader)
 | |
|         {
 | |
|             ToWrapper (
 | |
|                 delegate { return new JsonMockWrapper (); }, reader);
 | |
|         }
 | |
| 
 | |
|         private static void RegisterBaseExporters ()
 | |
|         {
 | |
|             base_exporters_table[typeof (byte)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write (Convert.ToInt32 ((byte) obj));
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (char)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write (Convert.ToString ((char) obj));
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (DateTime)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write (Convert.ToString ((DateTime) obj,
 | |
|                                                     datetime_format));
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (decimal)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write ((decimal) obj);
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (sbyte)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write (Convert.ToInt32 ((sbyte) obj));
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (short)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write (Convert.ToInt32 ((short) obj));
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (ushort)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write (Convert.ToInt32 ((ushort) obj));
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (uint)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write (Convert.ToUInt64 ((uint) obj));
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof (ulong)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write ((ulong) obj);
 | |
|                 };
 | |
| 
 | |
|             base_exporters_table[typeof(DateTimeOffset)] =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     writer.Write(((DateTimeOffset)obj).ToString("yyyy-MM-ddTHH:mm:ss.fffffffzzz", datetime_format));
 | |
|                 };
 | |
|         }
 | |
| 
 | |
|         private static void RegisterBaseImporters ()
 | |
|         {
 | |
|             ImporterFunc importer;
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToByte ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (byte), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToUInt64 ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (ulong), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToInt64((int)input);
 | |
|             };
 | |
|             RegisterImporter(base_importers_table, typeof(int),
 | |
|                               typeof(long), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToSByte ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (sbyte), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToInt16 ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (short), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToUInt16 ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (ushort), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToUInt32 ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (uint), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToSingle ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (float), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToDouble ((int) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (int),
 | |
|                               typeof (double), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToDecimal ((double) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (double),
 | |
|                               typeof (decimal), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToSingle((double)input);
 | |
|             };
 | |
|             RegisterImporter(base_importers_table, typeof(double),
 | |
|                 typeof(float), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToUInt32 ((long) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (long),
 | |
|                               typeof (uint), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToChar ((string) input);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (string),
 | |
|                               typeof (char), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return Convert.ToDateTime ((string) input, datetime_format);
 | |
|             };
 | |
|             RegisterImporter (base_importers_table, typeof (string),
 | |
|                               typeof (DateTime), importer);
 | |
| 
 | |
|             importer = delegate (object input) {
 | |
|                 return DateTimeOffset.Parse((string)input, datetime_format);
 | |
|             };
 | |
|             RegisterImporter(base_importers_table, typeof(string),
 | |
|                 typeof(DateTimeOffset), importer);
 | |
|         }
 | |
| 
 | |
|         private static void RegisterImporter (
 | |
|             IDictionary<Type, IDictionary<Type, ImporterFunc>> table,
 | |
|             Type json_type, Type value_type, ImporterFunc importer)
 | |
|         {
 | |
|             if (! table.ContainsKey (json_type))
 | |
|                 table.Add (json_type, new Dictionary<Type, ImporterFunc> ());
 | |
| 
 | |
|             table[json_type][value_type] = importer;
 | |
|         }
 | |
| 
 | |
|         private static void WriteValue (object obj, JsonWriter writer,
 | |
|                                         bool writer_is_private,
 | |
|                                         int depth)
 | |
|         {
 | |
|             if (depth > max_nesting_depth)
 | |
|                 throw new JsonException (
 | |
|                     String.Format ("Max allowed object depth reached while " +
 | |
|                                    "trying to export from type {0}",
 | |
|                                    obj.GetType ()));
 | |
| 
 | |
|             if (obj == null) {
 | |
|                 writer.WriteObjectStart();
 | |
|                 writer.WriteObjectEnd();
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is IJsonWrapper) {
 | |
|                 if (writer_is_private)
 | |
|                     writer.TextWriter.Write (((IJsonWrapper) obj).ToJson ());
 | |
|                 else
 | |
|                     ((IJsonWrapper) obj).ToJson (writer);
 | |
| 
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is String) {
 | |
|                 writer.Write ((string) obj);
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is Double) {
 | |
|                 writer.Write ((double) obj);
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is Single)
 | |
|             {
 | |
|                 writer.Write((float)obj);
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is Int32) {
 | |
|                 writer.Write ((int) obj);
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is Boolean) {
 | |
|                 writer.Write ((bool) obj);
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is Int64) {
 | |
|                 writer.Write ((long) obj);
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is Array) {
 | |
|                 writer.WriteArrayStart ();
 | |
| 
 | |
|                 foreach (object elem in (Array) obj)
 | |
|                     WriteValue (elem, writer, writer_is_private, depth + 1);
 | |
| 
 | |
|                 writer.WriteArrayEnd ();
 | |
| 
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is IList) {
 | |
|                 writer.WriteArrayStart ();
 | |
|                 foreach (object elem in (IList) obj)
 | |
|                     WriteValue (elem, writer, writer_is_private, depth + 1);
 | |
|                 writer.WriteArrayEnd ();
 | |
| 
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             if (obj is IDictionary dictionary) {
 | |
|                 writer.WriteObjectStart ();
 | |
|                 foreach (DictionaryEntry entry in dictionary) {
 | |
|                     var propertyName = entry.Key is string key ?
 | |
|                         key
 | |
|                         : Convert.ToString(entry.Key, CultureInfo.InvariantCulture);
 | |
|                     writer.WritePropertyName (propertyName);
 | |
|                     WriteValue (entry.Value, writer, writer_is_private,
 | |
|                                 depth + 1);
 | |
|                 }
 | |
|                 writer.WriteObjectEnd ();
 | |
| 
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             Type obj_type = obj.GetType ();
 | |
| 
 | |
|             // See if there's a custom exporter for the object
 | |
|             if (custom_exporters_table.ContainsKey (obj_type)) {
 | |
|                 ExporterFunc exporter = custom_exporters_table[obj_type];
 | |
|                 exporter (obj, writer);
 | |
| 
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             // If not, maybe there's a base exporter
 | |
|             if (base_exporters_table.ContainsKey (obj_type)) {
 | |
|                 ExporterFunc exporter = base_exporters_table[obj_type];
 | |
|                 exporter (obj, writer);
 | |
| 
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             // Last option, let's see if it's an enum
 | |
|             if (obj is Enum) {
 | |
|                 Type e_type = Enum.GetUnderlyingType (obj_type);
 | |
| 
 | |
|                 if (e_type == typeof (long))
 | |
|                     writer.Write ((long) obj);
 | |
|                 else if (e_type == typeof (uint))
 | |
|                     writer.Write ((uint) obj);
 | |
|                 else if (e_type == typeof (ulong))
 | |
|                     writer.Write ((ulong) obj);
 | |
|                 else if (e_type == typeof(ushort))
 | |
|                     writer.Write ((ushort)obj);
 | |
|                 else if (e_type == typeof(short))
 | |
|                     writer.Write ((short)obj);
 | |
|                 else if (e_type == typeof(byte))
 | |
|                     writer.Write ((byte)obj);
 | |
|                 else if (e_type == typeof(sbyte))
 | |
|                     writer.Write ((sbyte)obj);
 | |
|                 else
 | |
|                     writer.Write ((int) obj);
 | |
| 
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             // Okay, so it looks like the input should be exported as an
 | |
|             // object
 | |
|             AddTypeProperties (obj_type);
 | |
|             IList<PropertyMetadata> props = type_properties[obj_type];
 | |
| 
 | |
|             writer.WriteObjectStart ();
 | |
|             foreach (PropertyMetadata p_data in props) {
 | |
|                 if (p_data.IsField) {
 | |
|                     writer.WritePropertyName (p_data.Info.Name);
 | |
|                     WriteValue (((FieldInfo) p_data.Info).GetValue (obj),
 | |
|                                 writer, writer_is_private, depth + 1);
 | |
|                 }
 | |
|                 else {
 | |
|                     PropertyInfo p_info = (PropertyInfo) p_data.Info;
 | |
| 
 | |
|                     if (p_info.CanRead) {
 | |
|                         writer.WritePropertyName (p_data.Info.Name);
 | |
|                         WriteValue (p_info.GetValue (obj, null),
 | |
|                                     writer, writer_is_private, depth + 1);
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
|             writer.WriteObjectEnd ();
 | |
|         }
 | |
|         #endregion
 | |
| 
 | |
| 
 | |
|         public static string ToJson (object obj)
 | |
|         {
 | |
|             lock (static_writer_lock) {
 | |
|                 static_writer.Reset ();
 | |
| 
 | |
|                 WriteValue (obj, static_writer, true, 0);
 | |
| 
 | |
|                 return static_writer.ToString ();
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void ToJson (object obj, JsonWriter writer)
 | |
|         {
 | |
|             WriteValue (obj, writer, false, 0);
 | |
|         }
 | |
| 
 | |
|         public static JsonData ToObject (JsonReader reader)
 | |
|         {
 | |
|             return (JsonData) ToWrapper (
 | |
|                 delegate { return new JsonData (); }, reader);
 | |
|         }
 | |
| 
 | |
|         public static JsonData ToObject (TextReader reader)
 | |
|         {
 | |
|             JsonReader json_reader = new JsonReader (reader);
 | |
| 
 | |
|             return (JsonData) ToWrapper (
 | |
|                 delegate { return new JsonData (); }, json_reader);
 | |
|         }
 | |
| 
 | |
|         public static JsonData ToObject (string json)
 | |
|         {
 | |
|             return (JsonData) ToWrapper (
 | |
|                 delegate { return new JsonData (); }, json);
 | |
|         }
 | |
| 
 | |
|         public static T ToObject<T> (JsonReader reader)
 | |
|         {
 | |
|             return (T) ReadValue (typeof (T), reader);
 | |
|         }
 | |
| 
 | |
|         public static T ToObject<T> (TextReader reader)
 | |
|         {
 | |
|             JsonReader json_reader = new JsonReader (reader);
 | |
| 
 | |
|             return (T) ReadValue (typeof (T), json_reader);
 | |
|         }
 | |
| 
 | |
|         public static T ToObject<T> (string json)
 | |
|         {
 | |
|             JsonReader reader = new JsonReader (json);
 | |
| 
 | |
|             return (T) ReadValue (typeof (T), reader);
 | |
|         }
 | |
| 
 | |
|         public static object ToObject(string json, Type ConvertType )
 | |
|         {
 | |
|             JsonReader reader = new JsonReader(json);
 | |
| 
 | |
|             return ReadValue(ConvertType, reader);
 | |
|         }
 | |
| 
 | |
|         public static IJsonWrapper ToWrapper (WrapperFactory factory,
 | |
|                                               JsonReader reader)
 | |
|         {
 | |
|             return ReadValue (factory, reader);
 | |
|         }
 | |
| 
 | |
|         public static IJsonWrapper ToWrapper (WrapperFactory factory,
 | |
|                                               string json)
 | |
|         {
 | |
|             JsonReader reader = new JsonReader (json);
 | |
| 
 | |
|             return ReadValue (factory, reader);
 | |
|         }
 | |
| 
 | |
|         public static void RegisterExporter<T> (ExporterFunc<T> exporter)
 | |
|         {
 | |
|             ExporterFunc exporter_wrapper =
 | |
|                 delegate (object obj, JsonWriter writer) {
 | |
|                     exporter ((T) obj, writer);
 | |
|                 };
 | |
| 
 | |
|             custom_exporters_table[typeof (T)] = exporter_wrapper;
 | |
|         }
 | |
| 
 | |
|         public static void RegisterImporter<TJson, TValue> (
 | |
|             ImporterFunc<TJson, TValue> importer)
 | |
|         {
 | |
|             ImporterFunc importer_wrapper =
 | |
|                 delegate (object input) {
 | |
|                     return importer ((TJson) input);
 | |
|                 };
 | |
| 
 | |
|             RegisterImporter (custom_importers_table, typeof (TJson),
 | |
|                               typeof (TValue), importer_wrapper);
 | |
|         }
 | |
| 
 | |
|         public static void UnregisterExporters ()
 | |
|         {
 | |
|             custom_exporters_table.Clear ();
 | |
|         }
 | |
| 
 | |
|         public static void UnregisterImporters ()
 | |
|         {
 | |
|             custom_importers_table.Clear ();
 | |
|         }
 | |
|     }
 | |
| }
 |