Re: [Unicon-group] Proposal for changing the parameter type and default value syntax...

[David Gamey]

Steve Wampler wrote:

Currently Unicon supports the following syntax for
method/procedure/initially parameters:
   var[:type][:defaultvalue]

as it stands, this has a few idiosyncracies:

 

[snip]

Because of the ambiguity of x:y syntactically, both of these
(and related) issues are actually pretty hard to 'fix'.
 

Good observation.

However, if the syntax instead were (say):

         var[:type][=defaultvalue]

then both could be handled,  since the test for checking
type in (for example):
      procedure proc(x:integer, i:integer=1)

 

[snip]

Easy to take.

Comments?  Not worth it?  Too late?  Generally a bad idea?
 

I think this has merit.  I don't know about impact.  I've not used the 
feature much so it's easy for me to vote for it.  However, I suspect 
that it isn't a huge change.

Better syntax, for example, perhaps:

      procedure foo(a(real):2*sin(1.0))    ?
 

No, definitely not.   I liked the first suggestion better!

-Steve

 

David



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