From: "David A. Black" <dblack@...>
Date: 2008-10-15T23:03:20+09:00
Subject: [ruby-core:19343] Yet another block semantic/syntax question

Hi --

I just want to make sure I'm right that this is what happens, and that
it's supposed to happen:

>>  pr = Proc.new {|a,b=1| p a, b }
=> #<Proc:0x1ee114@(irb):10>
>>   pr.call(10,20)
10
1
=> [10, 1]

>> RUBY_RELEASE_DATE
=> "2008-10-15"
>> RUBY_VERSION
=> "1.9.0"

In other words, Proc.new accepts the method-argument syntax, but does
not use method-argument semantics (it sets b unconditionally to 1).
(lambda uses method-arg semantics all the way in similar cases.)


David

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