[ruby-core:82637] [Ruby trunk Bug#13844] Toplevel returns should fire ensures

Issue #13844 has been updated by Eregon (Benoit Daloze).


Agreed, ensure should run in all cases escaping the scope, even more so when it lexically encloses the top-level return.

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Bug #13844: Toplevel returns should fire ensures
https://bugs.ruby-lang.org/issues/13844#change-66465

* Author: headius (Charles Nutter)
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 2.4.1
* Backport: 2.2: DONTNEED, 2.3: DONTNEED, 2.4: REQUIRED
----------------------------------------
In the following contexts, a return always fires the ensure that wraps it:

```
[] ~/projects/ruby $ ruby -e 'def foo; return; ensure; p :x; end; foo'
:x

[] ~/projects/ruby $ ruby -e 'def foo; 1.times { begin; return; ensure; p :x; end }; end; foo'
:x
```

However the new 2.4 support for toplevel returns does *not* fire ensures:

```
$ ruby -e 'begin; return; ensure; p :x; end'
<no output>
```

I believe this is inconsistent with how returns work everywhere else (both valid and invalid returns always fire ensure) and it should be changed to match.



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