From: Harold Hausman <hhausman@...>
Date: 2006-08-06T14:20:46+09:00
Subject: Re: Whitespace matters in instance_eval? I'm confused

On 8/6/06, Rick DeNatale <rick.denatale@gmail.com> wrote:
> On 8/6/06, Harold Hausman <hhausman@gmail.com> wrote:
>
> > irb(main):004:0> foo.instance_eval "3.times\n{ puts 'boom' \n}"
> > SyntaxError: (eval):3:in `irb_binding': compile error
> > (eval):2: syntax error
> > { puts 'boom'
> >         ^
> > (eval):3: syntax error
> >         from (irb):4
> >
> > #is there a rule that says that the opening curly brace has to be on
> > the same line?
>
> I think that it pretty much falls out of the way Ruby handles lines in
> source.  As the pickaxe put's it Ruby is 'line-oriented'
>
> 1) An expression or statement which looks like complete by the end of
> the line IS considered complete
>
> 2) Blocks are optional in method calls, so
>      3.times
>     looks like (and is a complete expression, and a complete statement)
>
> 3) a bare block is not a valid statement
>
> It's got nothing to do with instance_eval
>

   ...

> --
> Rick DeNatale
>

Makes good sense, thank you kindly.

-Harold