public override DynamicMetaObject BindGetMember(GetMemberBinder binder)
{
var metaObj = base.BindGetMember(binder);
var property = _objType.GetProperty(binder.Name,
BindingFlags.DeclaredOnly | BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (property != null && property.IsDefined(typeof(IAspect), false))
{
var aspects = RetrieveAspects(property);
metaObj = new GetterGenerator(Value, metaObj.Restrictions, aspects, property).Generate();
}
return(metaObj);
}
private static bool LinkEncoder <T>(IEncoderDescriptor <T> descriptor, BindingFlags bindings,
IDictionary <Type, object> parents)
{
var entityType = typeof(T);
parents[entityType] = descriptor;
if (Linker.TryLinkEncoderAsValue(descriptor))
{
return(true);
}
// Bind descriptor as an array of target type is also array
if (entityType.IsArray)
{
var element = entityType.GetElementType();
var getter = MethodResolver
.Create <Func <Func <object, object> > >(() => GetterGenerator.CreateIdentity <object>())
.SetGenericArguments(typeof(IEnumerable <>).MakeGenericType(element))
.Invoke(null);
return(Linker.LinkEncoderAsArray(descriptor, bindings, element, getter, parents));
}
// Try to bind descriptor as an array if target type IEnumerable<>
foreach (var interfaceType in entityType.GetInterfaces())
{
// Make sure that interface is IEnumerable<T> and store typeof(T)
if (!TypeResolver.Create(interfaceType).HasSameDefinitionThan <IEnumerable <object> >(out var arguments))
{
continue;
}
var elementType = arguments[0];
var getter = MethodResolver
.Create <Func <Func <object, object> > >(() => GetterGenerator.CreateIdentity <object>())
.SetGenericArguments(typeof(IEnumerable <>).MakeGenericType(elementType))
.Invoke(null);
return(Linker.LinkEncoderAsArray(descriptor, bindings, elementType, getter, parents));
}
// Bind readable and writable instance properties
foreach (var property in entityType.GetProperties(bindings))
{
if (property.GetGetMethod() == null || property.GetSetMethod() == null ||
property.Attributes.HasFlag(PropertyAttributes.SpecialName))
{
continue;
}
var getter = MethodResolver
.Create <Func <PropertyInfo, Func <object, object> > >(p =>
GetterGenerator.CreateFromProperty <object, object>(p))
.SetGenericArguments(entityType, property.PropertyType)
.Invoke(null, property);
if (!Linker.LinkEncoderAsObject(descriptor, bindings, property.PropertyType, property.Name, getter,
parents))
{
return(false);
}
}
// Bind public instance fields
foreach (var field in entityType.GetFields(bindings))
{
if (field.Attributes.HasFlag(FieldAttributes.SpecialName))
{
continue;
}
var getter = MethodResolver
.Create <Func <FieldInfo, Func <object, object> > >(f =>
GetterGenerator.CreateFromField <object, object>(f))
.SetGenericArguments(entityType, field.FieldType)
.Invoke(null, field);
if (!Linker.LinkEncoderAsObject(descriptor, bindings, field.FieldType, field.Name, getter, parents))
{
return(false);
}
}
return(true);
}