[plt-scheme] shadowing initial imports (3.99.0.20)

This is great, Thanks!
Jos

----- Original Message ----- 
From: "Matthew Flatt" <mflatt at cs.utah.edu>
To: <plt-scheme at list.cs.brown.edu>
Sent: Wednesday, March 19, 2008 2:46 PM
Subject: [plt-scheme] shadowing initial imports (3.99.0.20)


> Version 3.99.0.20 implements Jos's suggestion:
> 
> http://list.cs.brown.edu/pipermail/plt-scheme/2008-February/023282.html
> 
> 
> This change means, for example, that you can write
> 
>  #lang scheme
>  (require srfi/1)
> 
> in which case the body of the module uses `map', `third', and several
> other names from `srfi/1' instead of from `scheme'.
> 
> This shadowing rule applies only to the initial import (a.k.a.
> "language" of the module). For example,
> 
>  #lang scheme
>  (require scheme srfi/1)
> 
> still reports a syntax error, since `scheme' is (also) `require'd in
> the module body, and `scheme' and `srfi/1' provide many of the same
> names with different bindings.
> 
> 
> Matthew
> 
> _________________________________________________
>  For list-related administrative tasks:
>  http://list.cs.brown.edu/mailman/listinfo/plt-scheme