From: Joel VanderWerf <vjoel@...>
Date: 2004-11-30T09:42:04+09:00
Subject: Re: Another improved error message request

Sam Roberts wrote:
> Quoteing matz@ruby-lang.org, on Tue, Nov 30, 2004 at 08:32:04AM +0900:
...
>>The point is that
>>
>>  100.times | i | puts
>>
>>is totally valid syntax.  It is very hard for a parser to detect this
>>type of error.  If anyone comes up with an idea, please tell me.
> 
> 
> It is? Well, you would know... :-) but I'm confused!
> 
> $ irb18
> irb(main):001:0> 100.times | i | puts
> LocalJumpError: no block given
>         from (irb):1:in `times'
>         from (irb):1

This is a LocalJumpError only because times happens to need a block.

irb(main):001:0> class Fixnum; def tmies; 4; end; end
=> nil
irb(main):002:0> i = 5
=> 5
irb(main):003:0> puts = 6
=> 6
irb(main):004:0> 100.tmies | i | puts
=> 7