/// <summary>
/// If a Type Hint is present then this method attempts to
/// use it and move any previously parsed data over.
/// </summary>
/// <param name="objectType">reference to the objectType</param>
/// <param name="memberMap">reference to the memberMap</param>
/// <param name="result">the previous result</param>
/// <param name="typeInfo">the type info string to use</param>
/// <returns></returns>
private Object ProcessTypeHint(
ref Type objectType,
ref Dictionary <string, MemberInfo> memberMap,
IDictionary result,
string typeInfo)
{
if (String.IsNullOrEmpty(typeInfo))
{
return(result);
}
Type hintedType = Type.GetType(typeInfo, false);
if (hintedType == null)
{
return(result);
}
objectType = hintedType;
object newResult = this.InstantiateObject(hintedType, ref memberMap);
if (memberMap != null)
{
Type memberType;
MemberInfo memberInfo;
// copy any values into new object
foreach (object key in result.Keys)
{
JsonReader.GetMemberInfo(memberMap, key as String, out memberType, out memberInfo);
this.SetMemberValue(newResult, memberType, memberInfo, result[key]);
}
}
return(newResult);
}
private object ReadObject(Type objectType)
{
if (this.Source[this.index] != JsonReader.OperatorObjectStart)
{
throw new JsonDeserializationException(JsonReader.ErrorExpectedObject, this.index);
}
Dictionary <string, MemberInfo> memberMap = null;
Object result;
if (objectType != null)
{
result = this.InstantiateObject(objectType, ref memberMap);
}
else
{
result = new Dictionary <String, Object>();
}
JsonToken token;
do
{
Type memberType;
MemberInfo memberInfo;
// consume opening brace or delim
this.index++;
if (this.index >= this.SourceLength)
{
throw new JsonDeserializationException(JsonReader.ErrorUnterminatedObject, this.index);
}
// get next token
token = this.Tokenize();
if (token == JsonToken.ObjectEnd)
{
break;
}
if (token != JsonToken.String)
{
throw new JsonDeserializationException(JsonReader.ErrorExpectedPropertyName, this.index);
}
// parse object member value
string memberName = (String)this.ReadString(null);
// determine the type of the property/field
JsonReader.GetMemberInfo(memberMap, memberName, out memberType, out memberInfo);
// get next token
token = this.Tokenize();
if (token != JsonToken.NameDelim)
{
throw new JsonDeserializationException(JsonReader.ErrorExpectedPropertyNameDelim, this.index);
}
// consume delim
index++;
if (this.index >= this.SourceLength)
{
throw new JsonDeserializationException(JsonReader.ErrorUnterminatedObject, this.index);
}
// parse object member value
object value = this.Read(memberType, false);
if (result is IDictionary)
{
if (objectType == null &&
!String.IsNullOrEmpty(this.typeHintName) &&
this.typeHintName.Equals(memberName, StringComparison.InvariantCulture))
{
result = this.ProcessTypeHint(ref objectType, ref memberMap, (IDictionary)result, value as string);
}
else
{
((IDictionary)result)[memberName] = value;
}
}
else if (objectType.GetInterface(JsonWriter.TypeGenericIDictionary) != null)
{
throw new JsonDeserializationException(JsonReader.ErrorGenericIDictionary, this.index);
}
else
{
this.SetMemberValue(result, memberType, memberInfo, value);
}
// get next token
token = this.Tokenize();
} while (token == JsonToken.ValueDelim);
if (token != JsonToken.ObjectEnd)
{
throw new JsonDeserializationException(JsonReader.ErrorUnterminatedObject, this.index);
}
// consume closing brace
this.index++;
return(result);
}