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Backport #3938
ยป methodarity.rb
ruby script to minimally reproduce the incorrect behavior -
Ethan (Ethan -)
, 10/13/2010 03:19 AM
def
Object
.
onearg
(
arg
)
arg
end
amethod
=
Object
.
method
(
:onearg
)
aproc
=
proc
{
|
arg
|
arg
}
require
'pp'
pp
([[
1
,
2
]].
detect
(
&
aproc
))
# works because proc works correctly
pp
([[
1
]].
detect
(
&
amethod
))
# works because arity happens to be the same as [1].size
pp
([[
1
,
2
]].
detect
(
&
amethod
))
# doesn't work because arity isn't the asme as [1, 2].size
(1-1/1)
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