Constant Lookup Confusion

[Josh Cheek]

[Note: parts of this message were removed to make it a legal post.]

Trying to dynamically set a constant, but I seem to either be defining it in
the wrong place, or looking for it in the wrong place.



module ClassMaker
def self.make_class( classname , default )
theclass = Class.new do
extend ClassMethods
const_set EFAULT , default
end
Object.const_set classname , theclass
end

module ClassMethods
def reset
@value = DEFAULT
end
end
end

ClassMaker.make_class 'MyClass' , :my_default

begin
MyClass.reset
rescue => e
e # => #<NameError: uninitialized constant
ClassMaker::ClassMethods:EFAULT>
end

 

[Ammar Ali]

Trying to dynamically set a constant, but I seem to either be defining it= in
the wrong place, or looking for it in the wrong place.



module ClassMaker
=C2=A0def self.make_class( classname , default )
=C2=A0 =C2=A0theclass =3D Class.new do
=C2=A0 =C2=A0 =C2=A0extend ClassMethods
=C2=A0 =C2=A0 =C2=A0const_set EFAULT , default
=C2=A0 =C2=A0end
=C2=A0 =C2=A0Object.const_set classname , theclass
=C2=A0end

=C2=A0module ClassMethods
=C2=A0 =C2=A0def reset
=C2=A0 =C2=A0 =C2=A0@value =3D DEFAULT
=C2=A0 =C2=A0end
=C2=A0end
end

ClassMaker.make_class 'MyClass' , :my_default

begin
=C2=A0MyClass.reset
rescue =3D> e
=C2=A0e # =3D> #<NameError: uninitialized constant
ClassMaker::ClassMethods:EFAULT>
end

Try self:EFAULT in #reset, that seems to do the trick.

Regards,
Ammar

 

[Josh Cheek]

[Note: parts of this message were removed to make it a legal post.]

Try self:EFAULT in #reset, that seems to do the trick.

Regards,
Ammar

Thanks, Ammar.