From: Joshua Ballanco <jballanc@...>
Date: 2014-01-20T13:32:33+02:00
Subject: [ruby-core:59899] Re: [ruby-trunk - Feature #9428] [Rejected] Inline argument expressions and re-assignment

On Monday, January 20, 2014 at 11:04, "Martin J. D��rst" wrote:
> On 2014/01/20 11:32, matz@ruby-lang.org (mailto:matz@ruby-lang.org) wrote:
>  
> > As Nobu pointed out, it's too difficult (or impossible) to parse argument list.
> > You should propose other way. For example, some languages provide argument decoration like:
> >  
> > ```
> > def foo(a:b)
> > end
> > ```
> >  
> > where implicitly calls `a = b(a)`. Note that `:` is not usable for Ruby. It conflicts with keyword arguments.
>  
> Hello Matz,
>  
> Do you still remember the name(s) of such language?

Scala does something like this with implicit conversions. The first Google hit I found that goes into it: http://tomjefferys.blogspot.com/2011/11/implicit-conversions-in-scala.html