[Date Prev][Date Next][Thread Prev][Thread Next]
[Date Index]
[Thread Index]
- Subject: Re: How am I supposed to use yaci library?(Yet Another Class Implementation)
- From: steve donovan <steve.j.donovan@...>
- Date: Wed, 26 Feb 2014 13:25:41 +0200
On Wed, Feb 26, 2014 at 12:48 PM, Journeyer J. Joh
<oosaprogrammer@gmail.com> wrote:
> I believe maybe you and Javier Guerra Giraldez would be right.
> I have almost no experience in such a language like lua.
With dynamic languages, every value has a type at run-time [1]
With C++, we need extra notion of virtual method to ensure that
instances of classes have an associated VMT; otherwise method
dispatch is completely determined at compile time.
As for B class calling A's original method M, there isn't a general
solution which is both elegant and efficient. Assuming bee is an
object of class B, then it's bee:M(a) to call B method, A.M(bee,a) to
call A method. Any attempt to wrap this in sugar has problems (we
tried to do this for Penlight; I'd love to be proven wrong on this.)
[1] so they are not weakly-typed, just dynamically-typed; it is an
orthogonal concept. Lua tends to be more weakly-typed (using plain
tables aka "anonymous types") than Python (compulsively using
classes).
- References:
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Ousmane Roland Yonaba
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Journeyer J. Joh
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Andrew Starks
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Journeyer J. Joh
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), steve donovan
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Journeyer J. Joh
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Journeyer J. Joh
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Andrew Starks
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), steve donovan
- Re: How am I supposed to use yaci library?(Yet Another Class Implementation), Journeyer J. Joh