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Date: Mon, 10 Jan 2005 22:18:13 +0100
From: Antoine Levy-Lambert <antoine@gmx.de>
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To: Ant Developers List <dev@ant.apache.org>
Subject: Re: local properties
References: <EA9D95F907E2924A9A32F274114BCDEF138AF5@perth.Cellectivity.local>
 <41E2C932.5010701@apache.org>
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Hi,

my 2 cents,

I like rather <local-property/> than <let/> (the latter reminds me of 
Visual Basic, oh shame).

I also like it if the local property is thread safe, because this might 
be useful for some advanced ant users.

Peter, I would like it if you try it in cvs.

Cheers,

Antoine

Peter Reilly wrote:

> Jose Alberto Fernandez wrote:
>
>> We left it nowhere.
>>  
>>
> Is true.
>
>>
>> I still think my simple <let/> addition to <macrodef/> will solve 90% 
>> of the use cases
>> with very low impact across the code. But as anything, people will 
>> have to understand
>> when to use it properly and so on.
>>
>> The patch is there in bugzilla, but I will not apply it unless there 
>> is some support for it
>> (I have not have the need for local properties myself, so it is not a 
>> problem for me).
>>
>> As per other approaches to local properties, unless we go and define 
>> a real semantic
>> for them (like any other well design programming language out there) 
>> I see they creating
>> more problems than solutions, in particular in our BC constrained world.
>>  
>>
> I do not think that the problems are too bad (but I would say that!).
>
> I would like to have the thread-local property implementation, however
> there was a lot of discussions about syntax.
>
> As the main use case for local properties is <macrodef> we
> could just implement them for macrodefs, and if necessary
> extend them later to be the free style properties.
>
> So the syntax would be:
> <macrodef name="show_length">
>  <attribute name="filename">
>  <local-property name="local-prop"/>
>  <sequential>
>     <length file="@{filename}" property="${local-prop}"/>
>     <echo>The length of file '@{filename}' is ${local-prop}</echo>
>  </sequential>
> </macrodef>
>
>
> We could implement this as a trial in ant cvs and pull it if there are 
> too many issues.
>
> Peter
>
>>
>> Jose Alberto
>>
>> ________________________________
>>
>> From: Matt Benson [mailto:gudnabrsam@yahoo.com]
>> Sent: Fri 07/01/2005 15:26
>> To: Ant Developers List
>> Subject: local properties
>>
>>
>>
>> Does anyone recall where we left off on this
>> discussion?    I think we need these, what do we need
>> to resolve to get them in?
>>
>> -Matt
>>
>>



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