Hi --

On Tue, 6 May 2008, Paul Brannan wrote:

> On Tue, May 06, 2008 at 02:07:26AM +0900, ts wrote:
>>  This is just me which associate, probably wrongly, lambda and
>>  define_method and 1.9 seems have method argument semantics with
>>  lambda
>
> Hmm, you seem (as usual) to be correct.  What, then, is the purpose of
> the -> syntax, if these are equivalent:
>
>  p = lambda { |x, y, &b| ... }
>  p = ->(x, y, &b) { ... }
>
> (or am I mistaken in thinking they are equivalent?)
>
> If they are the same, then I'm content to just not use -> in my own
> code.

See my response to Guy. ->() lets you do method-argument semantics:

   ->(a,b=1) {}

whereas this blows up:

   lambda {|a,b=1| }


David

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