public static IDataRW CreateRW(object obj)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
var auxiliary = new AuxiliaryValueRW();
ValueInterface.GetInterface(obj).Write(auxiliary, obj);
return(auxiliary.GetDataRW() ?? throw new NotSupportedException($"Unable create data reader-writer of '{obj.GetType()}'."));
}
public static IDataReader CreateReader(object obj, bool throwException = true)
{
if (obj is null)
{
throw new ArgumentNullException(nameof(obj));
}
var auxiliary = new AuxiliaryValueRW();
ValueInterface.GetInterface(obj).Write(auxiliary, obj);
return(auxiliary.GetDataReader() ??
(throwException ? throw new NotSupportedException($"Unable create data reader of '{obj.GetType()}'.") : default(IDataReader)));
}
/// <summary>
/// 获取数据写入器中指定键的值的类型。
/// </summary>
/// <typeparam name="TKey">键类型</typeparam>
/// <param name="dataWriter">数据写入器</param>
/// <param name="key">指定键</param>
/// <returns>返回一个类型</returns>
public static Type GetItemType <TKey>(IDataWriter <TKey> dataWriter, TKey key)
{
var auxiliary = new AuxiliaryValueRW();
if (typeof(TKey) == typeof(long) && ((dataWriter as IAsDataWriter)?.Content ?? dataWriter) is IId64DataRW id64DataRW)
{
id64DataRW.OnWriteValue(Unsafe.As <TKey, long>(ref key), auxiliary);
}
else
{
dataWriter.OnWriteValue(key, auxiliary);
}
return(auxiliary.GetType());
}
public static IDataRW CreateItemRW <TKey>(IDataReader <TKey> dataReader, TKey key, bool throwException = true)
{
var auxiliary = new AuxiliaryValueRW();
if (typeof(TKey) == typeof(long) && ((dataReader as IAsDataReader)?.Content ?? dataReader) is IId64DataRW id64DataRW)
{
id64DataRW.OnReadValue(Unsafe.As <TKey, long>(ref key), auxiliary);
}
else
{
dataReader.OnReadValue(key, auxiliary);
}
return(auxiliary.GetDataRW() ?? (throwException ? throw new NotSupportedException($"Failed to create data reader-writer of field : '{key}' in {dataReader}.") : default(IDataRW)));
}
public static IDataReader CreateReader(object obj)
{
var auxiliaryValueRW = new AuxiliaryValueRW();
ValueInterface.GetInterface(obj).Write(auxiliaryValueRW, obj);
var value = auxiliaryValueRW.read_writer;
if (value is IAsDataReader @as)
{
return(@as.Content);
}
return((IDataReader)value);
}
public static IDataWriter CreateWriter <T>()
{
var auxiliaryValueRW = new AuxiliaryValueRW();
ValueInterface <T> .Content.ReadValue(auxiliaryValueRW);
var value = auxiliaryValueRW.read_writer;
if (value is IAsDataWriter @as)
{
return(@as.Content);
}
return((IDataWriter)value);
}
public static IDataRW CreateRW <T>(T obj)
{
var auxiliaryValueRW = new AuxiliaryValueRW();
ValueInterface <T> .Content.WriteValue(auxiliaryValueRW, obj);
var value = auxiliaryValueRW.read_writer;
if (value is IAsDataRW @as)
{
return(@as.Content);
}
return((IDataRW)value);
}
public static IDataRW CreateItemRW <TKey>(IDataReader <TKey> dataReader, TKey key)
{
var auxiliaryValueRW = new AuxiliaryValueRW();
dataReader.OnReadValue(key, auxiliaryValueRW);
var value = auxiliaryValueRW.read_writer;
if (value is IAsDataRW @as)
{
return(@as.Content);
}
return((IDataRW)value);
}
public static IDataWriter CreateWriter(Type type)
{
var auxiliaryValueRW = new AuxiliaryValueRW();
ValueInterface.GetInterface(type).Read(auxiliaryValueRW);
var value = auxiliaryValueRW.read_writer;
if (value is IAsDataWriter @as)
{
return(@as.Content);
}
return((IDataWriter)value);
}
