On 04/28/2010 06:28 PM, retard wrote:
Wed, 28 Apr 2010 13:22:53 -0400, bearophile wrote:
BCS:
Could you elaborate on what exactly the expression problem is?<
I am far from being an expert on such matters, I will do what I can to
answer. It's not an esoteric problem, if you program with an OO language
you have probably faced it sometime.
You failed to mention that the OOP solution is in many cases overly
complex. When you don't need to subclass the car elements, a functional
pattern matching happens to win - at least if the declarativeness of code
matters. The implementation can also use jump tables so it becomes faster
than double dispatch. Luckily D is never going to get algebraic data
types so you can all stop reading this post right here.
I'm having trouble picturing the following scenario for a day in life.
* Wake up
* Shave
* Eat
* Drink coffee
* Go to work
* Do cool stuff
* Spend time reading and posting one bitter remark after another on a
newsgroup dedicated to a language that I hate, I'm not required to use,
I have no interest to see succeed, and I strongly believe breaks just
about every single principle of good language design
* Back home
* Fun with girlfriend, wife, kids, TV, pet projects, etc.
* Eat
* Beer
* Sleep
One of these things is unlike the others!
Andrei
