include "primitives.alh"
include "utils.alh"

Element function get_type_mapping_as_dict(model : Element):
	return model["type_mapping"]!

Element function get_elements_typed_by(model : Element, type : String):
	return reverseKeyLookupMulti(model["type_mapping"], type)!

String function read_type(model : Element, name : String):
	String result
	Element tm
	if (dict_in(model["model"], name)):
		if (dict_in(model["type_mapping"], name)):
			result = model["type_mapping"][name]

			if (dict_in(model["metamodel"]["model"], result)):
				return result!
			else:
				// log("Could not find " + result)
				return ""!
		else:
			// log("Untyped " + name)
			return ""!
	else:
		// log("Couldn't find type of " + name)
		return ""!

Void function retype(model : Element, element : String, type : String):
	// Retype a model, deleting any previous type the element had
	// The type string is evaluated in the metamodel previously specified

	if (dict_in(model["type_mapping"], element)):
		dict_delete(model["type_mapping"], element)

	dict_add_fast(model["type_mapping"], element, type)
	return!

Element function new_type_mapping():
	return dict_create()!