init commit

addons/nklbdev.importality/result.gd

@@ -0,0 +1,25 @@
+class Class:
+	extends RefCounted
+
+	var error: Error
+	var error_description: String
+	var inner_result: Class
+	func _get_result_type_description() -> String:
+		return "Operation"
+	func fail(error: Error, error_description: String = "", inner_result: Class = null) -> void:
+		assert(error != OK)
+		self.error = error
+		self.error_description = error_description
+		self.inner_result = inner_result
+	func _success():
+		error = OK
+		error_description = ""
+		inner_result = null
+	func _to_string() -> String:
+		return "%s error: %s (%s)%s%s" % [
+			_get_result_type_description(),
+			error,
+			error_string(error),
+			(", description: \"%s\"" % [error_description]) if error_description else "",
+			(", inner error:\n%s" % [inner_result]) if inner_result else "",
+		] if error else "%s(success)"