extends DeckNode

var expr = Expression.new()

func _init():
	name = "Expression"
	node_type = name.to_snake_case()
	description = "A Node holding a block of executable GDScript code."
	category = "general"

	props_to_serialize = []
	
	add_output_port(DeckType.Types.ANY, "Expression Text", "codeblock")
	


func _value_request(from_port : int) -> Variant:
	
	var text = get_output_ports()[0].value_callback.call()
	
	var err = expr.parse(text)
	if err != OK:
		
		printerr(err)
		return null
		
	
	var res = expr.execute()
	if expr.has_execute_failed():
		
		printerr("Expression Execution Failed: ", text)
		return null
		
	
	return res