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Thread-Topic: [PHP-DEV] Re: Generators in PHP
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Date: Thu, 9 Aug 2012 10:11:37 +0000
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Subject: RE: [PHP-DEV] Re: Generators in PHP
From: M.Ford@leedsmet.ac.uk ("Ford, Mike")

> -----Original Message-----
> From: Andrew Faulds [mailto:ajf@ajf.me]
> Sent: 25 July 2012 18:03

[...]

> Fact: Adding a new name for a special kind of function as a syntax
> construct is going to cost (possibly unnecessary) time and energy,
> because now you have functions, and weird things that look almost
> like=09
> functions but aren't and can only be used to make generators.

That looks to me like a perfect argument *in favour* of the
"generator" keyword! I'm a very literal kind of person, and I would
absolutely want "weird things that look almost like functions but
[...] can only be used to make generators" to be clearly labelled
as such without having to hunt through the body of the not-quite-
function.

The signposting needn't even be as in-your-face as a generator
keyword (either instead of or in addition to function): I could get
behind a variation such as:

   function f($x, $y) yields {
      ...
      yield $z;
      ...
   }

Or even (stretching a bit to re-use an existing keyword!):

   function f($x, $y) return {
      ...
      yield $z;
      ...
   }

Although I like the concept of generators, I would be -1 for any
implementation that doesn't differentiate them in some way from
regular functions.

Cheers!

Mike

--=20
Mike Ford,
Electronic Information Developer, Libraries and Learning Innovation,=20=20
Portland PD507, City Campus, Leeds Metropolitan University,
Portland Way, LEEDS,=A0 LS1 3HE,=A0 United Kingdom=20
E: m.ford@leedsmet.ac.uk     T: +44 113 812 4730




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