From: Yui NARUSE <naruse@...>
Date: 2011-12-20T21:52:32+09:00
Subject: [ruby-core:41754] [ruby-trunk - Feature #5781][Assigned] Query attributes (attribute methods ending in `?` mark)


Issue #5781 has been updated by Yui NARUSE.

Status changed from Open to Assigned
Assignee set to Yukihiro Matsumoto
Target version changed from 1.9.4 to 2.0.0


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Feature #5781: Query attributes (attribute methods ending in `?` mark)
https://bugs.ruby-lang.org/issues/5781

Author: Thomas Sawyer
Status: Assigned
Priority: Normal
Assignee: Yukihiro Matsumoto
Category: 
Target version: 2.0.0


Pretty sure this has come up before, but I'd like to revisit b/c I don't understand why it isn't allowed.

Sometimes I define "query" attributes, and in those cases I'd like the reader method to end in a `?` mark. Currently I have to do:

    # @attribute
    def foo?
      @foo
    end

or, if I don't mind a shadowing bare method,

    attr :foo
    alias_method :foo?, :foo

So why not just allow:

    attr :foo?

Currently this causes an error. But why? It just seems like a waste of potentially cleaner code.


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