From: matz@...
Date: 2021-07-15T05:42:19+00:00
Subject: [ruby-core:104608] [Ruby master Feature#17724] Make the pin operator support instance/class/global variables

Issue #17724 has been updated by matz (Yukihiro Matsumoto).


Sounds reasonable. Accepted.

Matz.


----------------------------------------
Feature #17724: Make the pin operator support instance/class/global variables 
https://bugs.ruby-lang.org/issues/17724#change-92895

* Author: jnchito (Junichi Ito)
* Status: Assigned
* Priority: Normal
* Assignee: ktsj (Kazuki Tsujimoto)
----------------------------------------
When I use pattern match with instance variables, I get an error message like "expecting local variable or method"

``` ruby
@n = 1
case 1
in ^@n
  # ...
end
#=> syntax error, unexpected instance variable, expecting local variable or method (SyntaxError)
#   in ^@n
#       ^~
```

However using method is not allowed, either.

``` ruby
def n = 1
case 1
in ^n
  # ...
end
#=> n: no such local variable (SyntaxError)
```

I think the message "expecting local variable or method" is confusing and should be fixed like "expecting local variable."




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