Forum: Ruby-dev [Rejected] Improvement of Symbol and Proc

0ec4920185b657a03edf01fff96b4e9b?d=identicon&s=25 matz (Yukihiro Matsumoto) (Guest)
on 2012-10-30 00:46
(Received via mailing list)
Issue #4146 has been updated by matz (Yukihiro Matsumoto).

Status changed from Assigned to Rejected

文法が気に入らないのでreject。

Matz.

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Feature #4146: Improvement of Symbol and Proc
https://bugs.ruby-lang.org/issues/4146#change-31941

Author: nobu (Nobuyoshi Nakada)
Status: Rejected
Priority: Normal
Assignee: nobu (Nobuyoshi Nakada)
Category: core
Target version:


=begin
 現在Symbol#to_procで %w[12 45 32].map(&:to_i) のようなことはできますが、
 引数を付けてメソッドを呼ぶことはできません。Symbolリテラルに引数を付け
 たらその引数と共にメソッドを呼ぶProcを作る構文というのはどうでしょうか。

   %w[12 45 32].map(&:to_i(9)).map(&:*(2)) #=> [22, 82, 58]
   %w[abc def ghi].map(&:[1])              #=> ["b", "e", "h"]
=end
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