Actually what I meant was my Real $x = 3; $x = Nil; $x.WHO.say
What you must read undoubtedly are this: https://docs.perl6.org/language/containers <https://docs.perl6.org/language/containers> and this: https://opensource.com/article/18/8/containers-perl-6 <https://opensource.com/article/18/8/containers-perl-6> > 16 вер. 2018 р. о 22:31 ToddAndMargo <toddandma...@zoho.com> написав(ла): > >>>> 16 вер. 2018 р. о 22:11 Curt Tilmes <c...@tilmes.org >>>> <mailto:c...@tilmes.org>> написав(ла): >>>> >>>> It isn't changing anything. >>>> >>>> You've still got a box ('container') that can only hold something 'Real'. >>>> >>>> You just happen to have a value in that box that is a 'Rat'. >>>> >>>> It is perfectly fine to put a Rat value in a Real box, because a Rat is >>>> also a Real (does the 'Real' role). >>>> >>>> You can still stick some other Real in the box, and you still can't stick >>>> anything that isn't a Real in the box. >>>> >>>> >>>> >>>> On Sun, Sep 16, 2018 at 10:07 PM ToddAndMargo <toddandma...@zoho.com >>>> <mailto:toddandma...@zoho.com>> wrote: >>>> >>>> On 09/16/2018 06:50 PM, Curt Tilmes wrote: >>>> > Note that an object that is a Rat also does Real (see >>>> > https://docs.perl6.org/type/Rat#Type_Graph) >>>> > >>>> > say Rat ~~ Real >>>> > >>>> > True >>>> > >>>> > Your're making a box that takes a Real, then putting a Rat (that >>>> also does Real) into that box. >>>> > >>>> > It then says "yes, you've got a Rat in there". >>>> > >>>> > >>>> >>>> Why is it changing thing on the fly when I tell it not to? >>>> I claim foul !!!!!! AAAAAA HHHHHHH !!! >>>> >>> Best regards, >>> Vadim Belman > > On 09/16/2018 07:18 PM, Vadim Belman wrote: >> I would add on top of Curt's explanation. Try assigning Nil to $x and then >> ask for its type. You'll get your Real back! > > > > I am see it but I am not seeing your point: > > $ p6 'my Real $x= Nil; dd $x;' > Real $x = Real > > $ p6 'my Real $x= Nil; $x = 3.1415; dd $x;' > Rat $x = 3.1415 > > Why is it changing the type on the fly after > I defined it? > Best regards, Vadim Belman
