From: "fxn (Xavier Noria) via ruby-core" <ruby-core@...>
Date: 2025-04-08T07:24:09+00:00
Subject: [ruby-core:121576] [Ruby Misc#21154] Document or change Module#autoload?

Issue #21154 has been updated by fxn (Xavier Noria).


Hi @mame, did you have a chance to watch the video or discuss it in a dev meeting?

----------------------------------------
Misc #21154: Document or change Module#autoload?
https://bugs.ruby-lang.org/issues/21154#change-112632

* Author: fxn (Xavier Noria)
* Status: Feedback
* Assignee: mame (Yusuke Endoh)
----------------------------------------
The documentation of `Module#autoload?` says

> Returns filename to be loaded if name is registered as autoload in the namespace of mod or one of its ancestors.

Cool, but in the following snippet

```ruby
autoload :Foo, 'foo'
autoload?(:Foo)
```

the second line could evaluate to `nil`, and this does not seem to agree. I just registered an autoload, therefore (according to the documentation) I should get "foo" back in line 2.

I'd like to ask for clarification from the Ruby team:

1. Is the documentation complete? Should that second line always return "foo"?
2. If the answer is no, which is the logic missing in the docs?

Thank you!



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