[Chicken-janitors] #216: consider `begin` variant with toplevel semantics that can be used locally

[Chicken Trac]

#216: consider `begin` variant with toplevel semantics that can be used locally
-------------------------------+--------------------------------------------
 Reporter:  felix              |       Owner:  felix
     Type:  enhancement        |      Status:  new  
 Priority:  not urgent at all  |   Milestone:       
Component:  core libraries     |     Version:  4.5.x
 Keywords:  toplevel-begin     |  
-------------------------------+--------------------------------------------
 `(##core#toplevel-begin BODY ...)`: like `begin`, but do not canonicalize
 the `BODY`.

 This allows wrapping toplevel code with a procedure, for example:

 {{{
 (define (toplevel)
   (##core#toplevel-begin
     (define a 1)
     ...))

 ...

 (toplevel)       ; initialize
 a
 }}}

-- 
Ticket URL: <http://www.irp.oist.jp/trac/chicken/ticket/216>
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