private static IEncoderDescriptor <TElement> BindArray <TElement>(
IWriterDefinition <TState, TNative, TEntity> parent, Func <TEntity, IEnumerable <TElement> > getter,
TreeEncoderDescriptor <TState, TNative, TElement> elementDescriptor)
{
var elementDefinition = elementDescriptor.definition;
parent.Callback = (reader, state, entity) =>
reader.WriteAsArray(state, getter(entity), elementDefinition.Callback);
return(elementDescriptor);
}
protected bool TryLookup <TOther>(string name, out int index, out IWriterDefinition <WriterState, ProtobufValue, TOther> writer)
{
index = Array.FindIndex(this.fields, binding => binding.Name == name);
if (index < 0)
{
writer = null;
return(false);
}
writer = new ProtobufWriterDefinition <TOther>(this.fields[index].Fields);
return(true);
}
private static IEncoderDescriptor <TField> BindField <TField>(
IWriterDefinition <TState, TNative, TEntity> parentDefinition,
string name, Dictionary <string, WriterCallback <TState, TNative, TEntity> > parentFields,
Func <TEntity, TField> getter, TreeEncoderDescriptor <TState, TNative, TField> fieldDescriptor)
{
if (parentFields.ContainsKey(name))
{
throw new InvalidOperationException($"field '{name}' was declared twice on same descriptor");
}
parentDefinition.Callback = (reader, state, entity) => reader.WriteAsObject(state, entity, parentFields);
var fieldDefinition = fieldDescriptor.definition;
parentFields[name] = (reader, state, entity) => fieldDefinition.Callback(reader, state, getter(entity));
return(fieldDescriptor);
}
public TreeEncoderDescriptor(IEncoderConverter <TNative> converter, IWriterDefinition <TState, TNative, TEntity> definition)
{
this.converter = converter;
this.definition = definition;
this.fields = new Dictionary <string, WriterCallback <TState, TNative, TEntity> >();
}
private static void BindValue(IWriterDefinition <TState, TNative, TEntity> parent,
Converter <TEntity, TNative> converter)
{
parent.Callback = (reader, state, entity) => reader.WriteAsValue(state, converter(entity));
}