[ruby-core:122348] [Ruby Bug#21384] const_added is triggered twice when using autoload

["petekinnecom (Pete Kinnecom) via ruby-core" <ruby-core@ml.ruby-lang.org>]

Issue #21384 has been updated by petekinnecom (Pete Kinnecom).


I see, thank you for the clarification!

----------------------------------------
Bug #21384: const_added is triggered twice when using autoload
https://bugs.ruby-lang.org/issues/21384#change-113494

* Author: petekinnecom (Pete Kinnecom)
* Status: Open
* Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
----------------------------------------
As the title says, I've noticed that `const_added` is invoked twice when using `autoload`. I'm wondering if this behavior is intended or perhaps a bug. Here's a small script to reproduce what I'm seeing:


``` ruby
require "tmpdir"

dir = Dir.mktmpdir

File.write(
  File.join(dir, "const.rb"),
  "class Const; end"
)

def Object.const_added(const_name)
  super.tap { puts "const_added: #{const_name}" }
end

$LOAD_PATH << dir

puts "before autoload call"
autoload :Const, "const"
puts "after autoload call"
puts Const

# Produces output:
#
# => before autoload call
# => const_added: Const
# => after autoload call
# => const_added: Const
# => Const
```




I'm seeing the behavior using the following docker containers ruby:3.2 and ruby:3.5-rc when running like so: `docker run -v ./:/home ruby:3.5-rc ruby /home/script.rb`. Thanks.




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