// Bootstrapped from https://github.com/canton7/RestEase/blob/master/src/RestEase/Implementation/ImplementationBuilder.cs
private Type BuildImplementationType(AccessorDescription description)
{
var accessorType = description.AccessorType;
var implementationTypeName = CreateImplementationTypeName(accessorType);
var typeBuilder = _moduleBuilder.DefineType(implementationTypeName, TypeAttributes.Public | TypeAttributes.Sealed);
typeBuilder.AddInterfaceImplementation(accessorType);
var dispatchFieldBuilder = typeBuilder.DefineField("_dispatch", typeof(IDispatcher), FieldAttributes.Private | FieldAttributes.InitOnly);
var instanceFieldBuilder = typeBuilder.DefineField("_instance", typeof(object), FieldAttributes.Private | FieldAttributes.InitOnly);
AddInstanceCtor(typeBuilder, dispatchFieldBuilder, instanceFieldBuilder);
AddFieldAccessor(description.DispatcherProperty, typeBuilder, dispatchFieldBuilder);
AddFieldAccessor(description.InstanceProperty, typeBuilder, instanceFieldBuilder);
foreach (var member in description.Members)
{
var id = member.Key;
var memberDescription = member.Value;
switch (memberDescription)
{
case PropertyDescription propertyDescription:
AddPropertyDispatch(id, propertyDescription, typeBuilder, instanceFieldBuilder, dispatchFieldBuilder);
break;
case FieldDescription fieldDescription:
AddFieldDispatch(id, fieldDescription, typeBuilder, instanceFieldBuilder, dispatchFieldBuilder);
break;
case MethodDescription methodDescription:
AddMethodDispatch(id, methodDescription, typeBuilder, instanceFieldBuilder, dispatchFieldBuilder);
break;
}
}
try
{
var constructedType = typeBuilder.CreateTypeInfo().AsType();
return(constructedType);
}
catch (TypeLoadException e)
{
// TODO
throw;
}
}
public Dispatcher(AccessorDescription description)
{
Description = description;
}
public TAccessor Implement <TAccessor>(object instance, IDispatcher dispatcher, AccessorDescription description) where TAccessor : ITypedReflectAccessor
{
var type = BuildImplementationType(description);
var implementation = Activator.CreateInstance(type, dispatcher, instance);
return((TAccessor)implementation);
}