class Akill
def astop(seq)
self.select{|astop| astop.first==seq}.collect
end
end
=> nil
grr.astop(b[0])
i get this error....
NoMethodError: private method `select' called for #<Akill:0x2dd01f8>
from (irb):86:in `astop'
from (irb):89
from ?:0
...and when i do this:
class Akill
def astop(seq) @arte.select{|astop| astop.first==seq}.collect
end
end
i don't....?
...and what is the difference in it's use if both worked...
i mean...what is the difference between making a method
that uses 'self' and one that uses a instance variable....
when would one to want to design a method with self and/or with a
instance variable?
....and even though i add to the Akill class:
attr_reader :arte, :stops, :rtes
...i still get these errors....
class Akill
def astop(seq)
self.select{|astop| astop.first==seq}.collect
end
end
=> nil
grr.arte.astop(b[0])
NoMethodError: undefined method `astop' for #<Array:0x2dd01b0>
from (irb):143
grr.astop([b0])
NameError: undefined local variable or method `b0' for main:Object
from (irb):144
grr.astop(b[0])
NoMethodError: private method `select' called for #<Akill:0x2dd01f8>
from (irb):140:in `astop'
from (irb):145
Phrogz wrote:
> You can't have an explicit receiver for private methods. See below.
in trying to understand this....
why is it then the Array.select instance method is private? here?....
It's not.
Quoting from your original post
grr.arte.astop(b[0])
NoMethodError: undefined method `astop' for #<Array:0x2dd01b0>
from (irb):143
from :0
Here grr.arte is returning an Array, and Array doesn't have an astop method.
grr.astop([b0])
NameError: undefined local variable or method `b0' for main:Object
from (irb):144
from :0
Did you mean to say b[0] instead of b0?
grr.astop(b[0])
NoMethodError: private method `select' called for #<Akill:0x2dd01f8>
from (irb):140:in `astop'
from (irb):145
from :0
I guess that you've defined select as a private method in Akill or one
of it's superclasses. It's not complaining about select being a
private method of Array, but of Akill.
As has been pointed out, it's illegal to use an explicit receiver on
private methods.
This is the way that the Ruby runtime enforces privacy. So
self.publicMethod
is the same as just
publicMethod
but
privateMethod
works and
self.privateMethod raises an exception.
···
On 9/1/06, Dave Rose <bitdoger2@yahoo.com> wrote:
--
Rick DeNatale
This select is most likely Kernel#select (as in IO).
···
On Sep 2, 2006, at 5:09 PM, Rick DeNatale wrote:
I guess that you've defined select as a private method in Akill or one
of it's superclasses. It's not complaining about select being a
private method of Array, but of Akill.