From: knu@...
Date: 2014-05-09T02:05:01+00:00
Subject: [ruby-core:62471] [ruby-trunk - Feature #6074] Allow alias	arguments to have a comma

Issue #6074 has been updated by Akinori MUSHA.


I believe the lack of comma is an important sign that alias is not really a method call in which directive arguments are not evaluated like with normal method calls.
If you are allowed to, and should you put a comma in an alias statement, it would look like a method call and confuse you in that you might think it could be passed any expressions.

Here is an example:

    class Foo
      name = :to_str
      method = :to_s
      alias name, method  # Likely a mistake, but won't err because `method` happens to exist.
    end

I think we should instead deprecate the `alias :sym1 :sym2` form so that it is clear that alias takes bare identifiers, not expressions.

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Feature #6074: Allow alias arguments to have a comma
https://bugs.ruby-lang.org/issues/6074#change-46627

* Author: Thomas Sawyer
* Status: Assigned
* Priority: Low
* Assignee: Yukihiro Matsumoto
* Category: core
* Target version: next minor
----------------------------------------
This is one my biggest pet peeves with Ruby. I am always typing:

~~~ruby
alias :foo, :bar
~~~

And getting a damn syntax error.

Btw, is there a reason why `alias` is a keyword and not a method?




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