From: fg@...
Date: 2016-12-30T14:42:14+00:00
Subject: [ruby-core:78917] [Ruby trunk Bug#13090] Cannot use return statement in lambdas using instance_eval (MRI 2.4)

Issue #13090 has been reported by Nikita Shilnikov.

----------------------------------------
Bug #13090: Cannot use return statement in lambdas using instance_eval (MRI 2.4)
https://bugs.ruby-lang.org/issues/13090

* Author: Nikita Shilnikov
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.4.0p0 (2016-12-24 revision 57164) [x86_64-linux]
* Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
Hello,

I'm pretty sure I've found a bug after running specs for dry-initializer gem on MRI 2.4. 
I managed to find the minimal code to reproduce the issue:

MRI 2.3.3
`
$ ruby -e "instance_eval(&lambda { |_| return })"
$
`

MRI 2.4.0-p0
`
$ ruby -e "instance_eval(&lambda { |_| return })"
-e:1:in `block in <main>': unexpected return (LocalJumpError)
	from -e:1:in `instance_eval'
	from -e:1:in `<main>'
`

I _think_ lambda has been converted to an ordinary proc, but I didn't check it.

Best regards,
Nikita



-- 
https://bugs.ruby-lang.org/

Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>