如何停止 EditorScript 的执行？

Question

考虑这个 EditorScript:

tool
extends EditorScript
 
func _run() -> void:
    _check_everything()
    _do_something()

func _check_everything() -> void:
    assert(self.get_scene() != null, "You have to create a scene...")
    ## How to exit if assert has failed?
        
func _do_something() -> void:
    self.get_scene().add_child(Node.new())

和输出：

 <built-in>:9 - Assertion failed: You have to create a scene...
 <built-in>:13 - Attempt to call function 'add_child' in base 'null instance' on a null instance.

断言失败如何停止执行？

Answer 1

GDScript 中没有办法。如果失败，不仅 assert(See also assert) 不会向脚本返回报告。它仅适用于调试版本。此外，该语言的设计无一例外。

改为先发制人：

func _run() -> void:
    if !_can_run():
        return

    _do_something()

func _can_run() -> bool:
    return self.get_scene() != null

如果要检查代码是否在调试版本中，可以使用 OS.is_debug_build. You might also be interested in Engine.editor_hint.

您可以结合 assert 或 push_error or push_warning. By the way, there is a breakpoint keyword.

检查条件

如何停止 EditorScript 的执行？

How to stop the execution of an EditorScript?

gdscript

godot