From: mjl@... (Martin J. Laubach)
Date: 2001-07-10T11:19:14+09:00
Subject: [ruby-talk:17585] Re: Constants and Variables

| >   One of the other things I miss dearly is a way to create a new
| > block-local variable. I have been bitten by
|  
|  creating a local variable is an implicit thing that happens upon
|  assignment. local variable is searched in current namespace and
|  recursively in its parents, then if not found, is created in the current.
|
|  block parameter passing is assignment, single or multiple.

  Okay, understood. Now is there a way to do block parameter passing
and always create a new local variable? It's a pain moving a block around
and having random pieces of code fail in mysterious ways, so I'd
rather lose a bit of performance and make my blocks side-effect free.

  I guess this goes right down in the direction of "there should be
a way to declare variables"? [1]

	mjl


[1] And a switch telling ruby to complain when it encounters an
    undeclared variable. Declarings stuff is tiresome, yes, but
    it is useful.