From: Dan Rathbun <redmine@...>
Date: 2010-03-17T20:01:04+09:00
Subject: [ruby-core:28711] [Bug #2975] Kernel.warn always writes despite $VERBOSE value

Issue #2975 has been updated by Dan Rathbun.


On 03/17/2010 06:42 AM - Nobuyoshi Nakada
--> said: "It's a document issue."

I agree.. that there IS an existing doc issue.

But that's only a SMALL part of the issue.

Proposing:
(A) Change and adition of module Kernel warning methods:
(1) Change name of Kernel.warn to Kernel.warn! [rb_warn_always, see (B)(3)]
    Add Typechecking, and return boolean true result.
(2) Add 2 methods to module Kernel, with Typechecking, and return boolean result.
    (a) Kernel.warn   [rb_warn_not_nil, see (B)(1)]
    (b) Kernel.warn?  [rb_warn_verbose, see (B)(2)]

(B) C core function wrappers (work as per Ruby given above):
(1) Kernel.warn   BOOL rb_warn_not_nil 
(2) Kernel.warn?  BOOL rb_warn_verbose   wrapper for VOID rb_warning
(3) Kernel.warn!  BOOL rb_warn_always    wrapper for VOID rb_warn


The ALTERNATIVE, is to add a 2nd parameter to the existing Kernel.warn method:
  (and revise as by combining the 3 Ruby methods given above.)
warn( message, warnIf = :always )
  warnIf may also be :notnil | :verbose
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http://redmine.ruby-lang.org/issues/show/2975

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