[ruby-core:72805] [Ruby trunk - Bug #11976] [Closed] Assigning to nil as a hash short-circuits without error.

From: nobu@...
Date: 2016-01-11 06:52:47 UTC
List: ruby-core #72805
Issue #11976 has been updated by Nobuyoshi Nakada.

Description updated
Status changed from Open to Closed
Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN to 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: DONTNEED, 2.3: REQUIRED

Fixed at r53485.

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Bug #11976: Assigning to nil as a hash short-circuits without error.
https://bugs.ruby-lang.org/issues/11976#change-56048

* Author: Sergei Matheson
* Status: Closed
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin14]
* Backport: 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: DONTNEED, 2.3: REQUIRED
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When assigning to nil as a hash, the RHS gets short-circuited, and the hash assignment on nil returns nil.
To reproduce:

~~~ruby
nil[:some_key] = undefined_method
# Expected: NameError: undefined local variable or method `undefined_method' for main:Object
# Actual: evaluates to nil. No errors raised.
~~~



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