Bug #1636: Rational#coerce(Rational) Raises TypeError

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 1.9.2dev (2009-06-14 trunk 23689) [i686-linux]

[runpaint (Run Paint Run Run)]

=begin
On 1.9.2 trunk:

 >> Rational(2).coerce(Rational(2))
 TypeError: Rational can't be coerced into Rational
from (irb):1:in `coerce'
from (irb):1
from /usr/local/bin/irb:12:in `<main>'

However:

 >> 2.coerce(2)
 => [2, 2]

 >> 2.2.coerce(2.2)
 => [2.2, 2.2]

Indeed, the documentation for Numeric#coerce states "If aNumeric is the same type as num, returns an array containing aNumeric and num."

It also works on 1.8.7:

 >> Rational(1).coerce(Rational(1)
 => [Rational(1, 1), Rational(1, 1)]

I suspect this should be special cased, for consistency if nothing else.
=end

[tadf (tadayoshi funaba)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

=begin
Applied in changeset r23718.
=end