From: Morton Goldberg <m_goldberg@...>
Date: 2006-10-26T05:03:27+09:00
Subject: Re: Pass block instead of here document?


On Oct 25, 2006, at 3:39 PM, Tim Pease wrote:

> On 10/25/06, Morton Goldberg <m_goldberg@ameritech.net> wrote:
>> I have a situation where I want to send many messages, one after the
>> other, to single object. Instead of writing, say,
>>
>
> <snip>
>
>> <pseud-code>
>> Foo.new.perform { report; eat 'burger', 'fries'; drink 'beer';
>> be_merry }
>> </pseud-code>
>>
>
> class Foo
>  def initialize( &block )
>    return unless block_given?
>    self.instance_eval &block
>  end
>
>  def eat( *args )
>    puts args.inspect
>  end
>
>  def drink( *args )
>    puts args.inspect
>  end
> end
>
>
> Foo.new do
>  eat 'burger', 'fries'
>  drink 'beer'
> end
>
> Is that what you are looking for? You can just as easily create a
> process method (instead of using the initialize method) to do
> something like this ...
>
> f = Foo.new
> f.process do
>  eat 'burger', 'fries'
>  drink 'beer'
> end
>
> Blessings,
> TwP

It's the second way that I was looking for. Now that I know that  
Object#instance_eval will accept a block, I can see how easy it is to  
write Foo#perform

Thanks for your help.

Regards, Morton