Re: Assign idiom

[Doug Rogers <rogers@...>]

Mark Edgar wrote:
> On 3/8/07, Leigh McRae <leigh.mcrae@cogeco.ca> wrote:
>> function SetIdiom(tb, v)
>>     tb = v
>>     return v
>> end
>> local sp = SetIdiom( self.spBackGround, W_TextRegion() )
> This will not work.  tb is local to the function body; modifying it
> does not modify the actual argument.
> The following will work:
> function set(t,k,v)
>  t[k] = v
>  return v
> end
> local sp = set( self, "spBackGround", W_TextRegion() )

Correct. I was careful to insert the set() function into self so that it
would work. I actually tried it before I posted it, so I know it worked
as written in my message. But you definitely need three arguments (my
first one was the hidden self argument of the ':' syntactic sugar), and
you definitely need to put the name of the field in quotes.

You (Leigh) might want to consider Etan's advice, too.

Doug

-- 
Innovative Concepts, Inc. www.innocon.com 703-893-2007 x220