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Re: declare [-+]n behavior on existing (chained) namerefs


From: Chet Ramey
Subject: Re: declare [-+]n behavior on existing (chained) namerefs
Date: Thu, 5 May 2016 14:59:23 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:45.0) Gecko/20100101 Thunderbird/45.0

On 5/2/16 1:55 PM, Piotr Grzybowski wrote:
> Hi,
> 
>  I hope the attached patch does not break to much; it addresses the masking:
> 
>> declare -nt r=a; f() { declare a; declare -n r=a; declare -p a r; }; f
> 
> as per Grisha's report; it tries to enlighten make_local_variable to the 
> existence of nameref by returning existing local nameref in scope (declare -n 
> r=PATH; declare -n r; returns r with value of PATH) and by (hopefully) 
> correctly making existing nameref take precedence over the dereferenced value.
> 
>  Would you please consider it?

Thanks, this is a good fix.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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