miggor-StreamGraph/classes/deck/nodes/expression_node.gd

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