public Object GetValue(String name, Type type)
{
int index;
Object value;
if (name == null)
{
throw new ArgumentNullException("name");
}
if (type == null)
{
throw new ArgumentNullException("type");
}
index = names.IndexOf(name);
if (index != -1)
{
value = values[index];
if (value != null)
{
if (type.IsAssignableFrom((Type)(types[index])))
{
return(value);
}
else
{
return(converter.Convert(value, type));
}
}
}
return(null);
}
//
// The user should call one of these getters to get the data back in the
// form requested.
//
public Object GetValue(String name, Type type)
{
if ((object)type == null)
{
throw new ArgumentNullException(nameof(type));
}
Contract.EndContractBlock();
RuntimeType rt = type as RuntimeType;
if (rt == null)
{
throw new ArgumentException(SR.Argument_MustBeRuntimeType);
}
Type foundType;
Object value;
value = GetElement(name, out foundType);
if (Object.ReferenceEquals(foundType, type) || type.IsAssignableFrom(foundType) || value == null)
{
return(value);
}
Debug.Assert(m_converter != null, "[SerializationInfo.GetValue]m_converter!=null");
return(m_converter.Convert(value, type));
}
public object GetValue(string name, Type type)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (type == null)
{
throw new ArgumentNullException("type");
}
SerializationEntry entry;
if (!entries.TryGetValue(name, out entry))
{
throw new SerializationException(String.Format("The member '{0}' was not added.", name));
}
var value = entry.Value;
#if !PCL
if (value != null && !type.IsInstanceOfType(value))
{
value = converter.Convert(value, type);
}
#else
if (value != null && !type.IsTypeOf(value))
{
value = converter.Convert(value, type);
}
#endif
return(value);
}
//
// The user should call one of these getters to get the data back in the
// form requested.
//
public Object GetValue(String name, Type type)
{
throw new NotImplementedException();
Type foundType;
Object value;
if (null == type)
{
throw new ArgumentNullException("type");
}
// value = GetElement(name, out foundType);
// if (RemotingServices.IsTransparentProxy(value))
// {
// RealProxy proxy = RemotingServices.GetRealProxy(value);
// if (RemotingServices.ProxyCheckCast(proxy, type))
// return value;
// }
// else if (foundType == type || type.IsAssignableFrom(foundType) || value == null)
// {
// return value;
// }
Debug.Assert(m_converter != null, "[SerializationInfo.GetValue]m_converter!=null");
return(m_converter.Convert(value, type));
}
/// <summary>
/// 读取一个值对象
/// </summary>
/// <param name="reader"> </param>
/// <param name="jsonType"> </param>
/// <returns> </returns>
private object ReadValue(UnsafeJsonReader reader, JsonType jsonType)
{
reader.CheckEnd();
switch (reader.Current)
{
case '[':
reader.MoveNext();
var array = ReadList(reader, jsonType);
reader.SkipChar(']', true);
return(array);
case '{':
reader.MoveNext();
var obj = ReadObject(reader, jsonType);
reader.SkipChar('}', true);
return(obj);
case '"':
case '\'':
return(ParseString(reader, jsonType));
default:
var val = reader.ReadConsts(false);
if (_converter != null)
{
return(_converter.Convert(val, jsonType.TypeCode));
}
return(jsonType.Convert(val, jsonType.Type));
}
}
public object Convert(object value, Type type)
{
try
{
return(_impl.Convert(value, type));
}
catch (InvalidCastException e)
{
throw new InvalidCastException(
$"Failed to convert the object {value} to {type}.",
e
);
}
}
private /*static*/ object readValue(XmlReader xmlReader, Type type, IFormatterConverter converter)
{
System.Diagnostics.Debug.Assert(null != xmlReader, "The 'xmlReader' argument cannot be null.");
System.Diagnostics.Debug.Assert(null != type, "The 'type' argument cannot be null.");
System.Diagnostics.Debug.Assert(this.isSimpleType(type), "The Type type is not a simple type.");
System.Diagnostics.Debug.Assert(null != converter, "The 'converter' argument cannot be null.");
object value = null; // Return value
string valueRepresentation = xmlReader.ReadString();
if (type.IsPrimitive || typeof(System.String) == type)
{
value = converter.Convert(valueRepresentation, type);
}
else if (type.IsEnum)
{
value = Enum.Parse(type, valueRepresentation);
}
else if (typeof(System.Guid) == type)
{
value = new GuidConverter().ConvertFromInvariantString(valueRepresentation);
}
// When the value is the empty string the xml element is empty and there is not an xml end element.
// Read the following element.
if (xmlReader.IsEmptyElement)
{
xmlReader.ReadStartElement();
}
return(value);
}
public object GetValue(string name, Type type)
{
if (name == null)
{
throw new ArgumentNullException("name is null.");
}
if (type == null)
{
throw new ArgumentNullException("type");
}
if (!serialized.ContainsKey(name))
{
throw new SerializationException("No element named " + name + " could be found.");
}
SerializationEntry entry = (SerializationEntry)serialized[name];
if (entry.Value != null && !type.IsInstanceOfType(entry.Value))
{
return(converter.Convert(entry.Value, type));
}
else
{
return(entry.Value);
}
}
/// <summary>
/// Extends Convert so that methods that return a specific type object given a Type parameter can be
/// used as generic method and casting is not required.
/// <example>
/// iformatterconverter.Convert<int>(value);
/// </example>
/// </summary>
public static T Convert <T>(this IFormatterConverter iformatterconverter, Object value)
{
if (iformatterconverter == null)
{
throw new ArgumentNullException("iformatterconverter");
}
return((T)iformatterconverter.Convert(value, typeof(T)));
}
public object GetValue(string name, Type type)
{
if (type == null)
{
throw new ArgumentNullException(nameof(type));
}
Type foundType;
object value;
value = GetElement(name, out foundType);
if (ReferenceEquals(foundType, type) || type.IsAssignableFrom(foundType) || value == null)
{
return(value);
}
Debug.Assert(_converter != null);
return(_converter.Convert(value, type));
}
protected override void Try(string arg, out object value)
{
try
{
value = _converter.Convert(arg, ParameterType);
}
catch
{
value = null;
}
}
[System.Security.SecuritySafeCritical] // auto-generated
public Object GetValue(String name, Type type)
{
if ((object)type == null)
{
throw new ArgumentNullException("type");
}
Contract.EndContractBlock();
RuntimeType rt = type as RuntimeType;
if (rt == null)
{
throw new ArgumentException(Environment.GetResourceString("Argument_MustBeRuntimeType"));
}
Type foundType;
Object value;
value = GetElement(name, out foundType);
#if FEATURE_REMOTING
if (RemotingServices.IsTransparentProxy(value))
{
RealProxy proxy = RemotingServices.GetRealProxy(value);
if (RemotingServices.ProxyCheckCast(proxy, rt))
{
return(value);
}
}
else
#endif
if (Object.ReferenceEquals(foundType, type) || type.IsAssignableFrom(foundType) || value == null)
{
return(value);
}
Contract.Assert(m_converter != null, "[SerializationInfo.GetValue]m_converter!=null");
return(m_converter.Convert(value, type));
}
public object?GetValue(string name, Type type)
{
if ((object)type == null)
{
throw new ArgumentNullException(nameof(type));
}
if (!type.IsRuntimeImplemented())
{
throw new ArgumentException(SR.Argument_MustBeRuntimeType);
}
Type foundType;
object?value = GetElement(name, out foundType);
if (ReferenceEquals(foundType, type) || type.IsAssignableFrom(foundType) || value == null)
{
return(value);
}
Debug.Assert(_converter != null, "[SerializationInfo.GetValue]_converter!=null");
return(_converter.Convert(value, type));
}
/// <summary>
/// 转换对象到指定的类型,如果失败返回默认值
/// </summary>
public static bool TryConvert(this IFormatterConverter converter, object value, Type type, out object result)
{
if (converter is IFormatterConverterExtra extra)
{
return(extra.TryConvert(value, out result));
}
try
{
result = converter.Convert(value, type);
return(true);
}
catch
{
result = null;
return(false);
}
}
protected override Exception Try(string arg, out object value)
{
try
{
value = _converter.Convert(arg, Type);
return(null);
}
catch
{
value = null;
if (_propertyCount > 0 && arg.Length == 0)
{
return(new ApiException(ExceptionCode.ParameterMissing, FullName));
}
return(new ApiException(ExceptionCode.ParameterFormatError, FullName, TypeName));
}
}
/// <summary>
/// 转换对象到指定的类型,如果失败返回默认值
/// </summary>
public static bool TryConvert <T>(this IFormatterConverter converter, object value, out T result)
{
if (converter is IFormatterConverterExtra extra)
{
return(extra.TryConvert <T>(value, out result));
}
try
{
result = (T)converter.Convert(value, typeof(T));
return(true);
}
catch
{
result = default;
return(false);
}
}
/// <summary>
/// Determines the value of an object.
/// </summary>
/// <param name="reader">The XML reader the read from.</param>
/// <param name="converter">The converter used to parse the values from the XML.</param>
/// <param name="objectType">The type of the object to create.</param>
/// <returns>The value of the object.</returns>
private object DetermineValue(XmlReader reader, IFormatterConverter converter, Type objectType)
{
object parsedObject;
// check if the value can be directly determined or that the type is a complex type.
if (objectType.IsPrimitive || objectType == typeof(string) || objectType.IsEnum || objectType == typeof(DateTime) || objectType == typeof(object))
{
// directly parse
parsedObject = converter.Convert(reader.ReadString(), objectType);
}
else
{
// Initialize the object (recursive call)
parsedObject = InitializeObject(reader, converter, objectType);
}
return(parsedObject);
}
private /*static*/ object readValue(XmlReader xmlReader, Type type, IFormatterConverter converter)
{
System.Diagnostics.Debug.Assert(null != xmlReader, "The 'xmlReader' argument cannot be null.");
System.Diagnostics.Debug.Assert(null != type, "The 'type' argument cannot be null.");
System.Diagnostics.Debug.Assert(this.isSimpleType(type), "The Type type is not a simple type.");
System.Diagnostics.Debug.Assert(null != converter, "The 'converter' argument cannot be null.");
object value = null; // Return value
string valueRepresentation = xmlReader.ReadString();
if (type.IsPrimitive || typeof(System.String) == type) {
value = converter.Convert(valueRepresentation, type);
}
else if (type.IsEnum) {
value = Enum.Parse(type, valueRepresentation);
}
else if (typeof(System.Guid) == type) {
value = new GuidConverter().ConvertFromInvariantString(valueRepresentation);
}
// When the value is the empty string the xml element is empty and there is not an xml end element.
// Read the following element.
if (xmlReader.IsEmptyElement)
xmlReader.ReadStartElement();
return value;
}
public object Convert(object value, Type type)
{
return(_impl.Convert(value, type));
}
