From: moio@...
Date: 2019-06-05T04:57:01+00:00
Subject: [ruby-core:92971] [Ruby trunk Bug#15886] return in rescue block	breaks Timeout.timeout

Issue #15886 has been updated by moio (Silvio Moioli).


I like this proposed wording, thanks for taking care of this!

----------------------------------------
Bug #15886: return in rescue block breaks Timeout.timeout
https://bugs.ruby-lang.org/issues/15886#change-78349

* Author: moio (Silvio Moioli)
* Status: Rejected
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux-gnu]
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
Passing `Timeout.timeout` a block with a rescue clause that contains a return statement prevents `Timeout::Error` to be raised as expected.

Reproducer:

``` ruby
require 'timeout'

begin
  Timeout.timeout(1) do
    begin
      sleep 10
    ensure
      puts "ensure block executed"

      ## commenting line below restores expected behaviour
      return true

    end
  end
rescue Timeout::Error => e
  puts "EXPECTED BEHAVIOUR: timeout error rescued"
end
```


Expected output:
```
ensure block executed
EXPECTED BEHAVIOR: timeout error rescued
```

Actual output:
```
ensure block executed
```



Looking in Redmine the following two issues appear related (but I lack the insight to tell for sure):
 - https://bugs.ruby-lang.org/issues/14859
 - https://bugs.ruby-lang.org/issues/7503


I apologize in advance if this issue is a duplicate.



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