From: usa@...
Date: 2016-02-03T10:34:44+00:00
Subject: [ruby-core:73670] [Ruby trunk Bug#11845] source_location against symbol.to_proc causes infinite loop

Issue #11845 has been updated by Usaku NAKAMURA.

Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN to 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: DONTNEED

----------------------------------------
Bug #11845: source_location against symbol.to_proc causes infinite loop
https://bugs.ruby-lang.org/issues/11845#change-56862

* Author: Kouhei Sutou
* Status: Closed
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.0dev (2015-12-19 trunk 53202) [x86_64-linux]
* Backport: 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: DONTNEED
----------------------------------------
`ruby -v -e ':class.to_proc.source_location'` causes inifinite loop:

```text
% /tmp/local/bin/ruby -v -e ':class.to_proc.source_location'
ruby 2.3.0dev (2015-12-19 trunk 53202) [x86_64-linux]
(never finished)
```

It's also caused with ruby 2.3.0preview2:

```text
/tmp/local/bin/ruby -v -e ':class.to_proc.source_location'
ruby 2.3.0preview2 (2015-12-11 trunk 53028) [x86_64-linux]
(never finished)
```

This may be related to `Proc#call` optimization.



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