[Oberon] Oxford Oberon-2 Compiler and local procedures

[Chris Burrows]

> From: oberon-bounces at lists.inf.ethz.ch 
> [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of August 
> Karlstrom
> Sent: Thursday, 27 November 2008 7:39 PM
> To: ETH Oberon and related systems
> Subject: Re: [Oberon] Oxford Oberon-2 Compiler and local procedures
> 
> The document "Oberon at a glance" also says the following 
> about Oberon-07:
> 
> "No access to variables that are neither global nor strictly 
> local" (*)
> 
> However, I can't find it in the Oberon-07 report. 

It is there but can be easily overlooked. See Section 10. 'Procedure
Declarations'. In the Oberon-2 Report it states:

"Objects declared in the environment of the procedure are also visible in
those parts of the procedure ..."

In the Oberon-07 Report it states:

"... the objects declared in the environment of the procedure are also
visible in the procedure (with the exception of variables ..."

> With this restriction Martin's code, where the procedure B accesses 
> the integer I, would not be valid.
> 

Good point.

Chris.