From: Mark Hubbart <discordantus@...>
Date: 2004-11-05T06:48:21+09:00
Subject: Re: Receiving blocks in Proc?

On Fri, 5 Nov 2004 06:23:43 +0900, James <james.cromwell@gmail.com> wrote:
> p = Proc.new { |*args,&block| }
> 
> produces syntax error
> 
> p = Proc.new { |*args,&block| }
> ----------------------^
> 
> It appears that Proc objects cannot receive blocks?

Not in 1.8. 1.9 has it; it's slated for 2.0, I believe...

b = lambda{|*args, &blk| args.each{|arg| blk[arg]}}
    ==>#<Proc:0x00522420@(irb):1>
b.call(1,2,3) {|n| puts "number #{n}"}
number 1
number 2
number 3
    ==>[1, 2, 3]
[RUBY_VERSION, RUBY_RELEASE_DATE]
    ==>["1.9.0", "2004-09-17"]


cheers,
Mark