37 lines
852 B
GDScript3
37 lines
852 B
GDScript3
|
# Data structure to hold the result of a function that can be expected to fail.
|
||
|
|
# The use case is to report errors back to the GUI and act accordingly,
|
||
|
|
# instead of forgetting them to the console or having the script break on an assertion.
|
||
|
|
# This is a C-like way of things, where the result can bubble, and does not require globals.
|
||
|
|
|
||
|
|
@tool
|
||
|
|
|
||
|
|
# Replace `success` with `error : int`?
|
||
|
|
var success := false
|
||
|
|
var value = null
|
||
|
|
var message := ""
|
||
|
|
var inner_result = null
|
||
|
|
|
||
|
|
|
||
|
|
func _init(p_success: bool, p_message := "", p_inner = null):
|
||
|
|
success = p_success
|
||
|
|
message = p_message
|
||
|
|
inner_result = p_inner
|
||
|
|
|
||
|
|
|
||
|
|
# TODO Can't type-hint self return
|
||
|
|
func with_value(v):
|
||
|
|
value = v
|
||
|
|
return self
|
||
|
|
|
||
|
|
|
||
|
|
func get_message() -> String:
|
||
|
|
var msg := message
|
||
|
|
if inner_result != null:
|
||
|
|
msg += "\n"
|
||
|
|
msg += inner_result.get_message()
|
||
|
|
return msg
|
||
|
|
|
||
|
|
|
||
|
|
func is_ok() -> bool:
|
||
|
|
return success
|