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Re: List of Functions

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Steven D'Aprano <steve@pearwood.info>:

> On Tue, 29 Mar 2016 08:40 am, Chris Angelico wrote:
>
>> On Tue, Mar 29, 2016 at 12:40 AM, Marko Rauhamaa <marko@pacujo.net> wrote:
>>> Dan Sommers <dan@tombstonezero.net>:
>>>
>>>> On Mon, 28 Mar 2016 11:58:54 +0300, Marko Rauhamaa wrote:
>>>>> As for Python, I don't feel a great need for anonymous functions.
>>>>> However, I keep running into a need for anonymous classes, or,
>>>>> rather, classless objects. Not a biggie. I just create a one-off
>>>>> inner class and instantiate it, but I do appreciate Java's
>>>>> syntactic innovation.
>
> "Classless object" is an oxymoron in Python since all values without
> exception have a class. Can you explain what you mean?

In class terms, I mean a closure class that has precisely one instance.
Just like a closure function has precisely one instance.

In object terms, I mean an object that implements an interface but whose
class is not of essence.

> Also, for the benefit of those who aren't Java coders, what do you mean
> by "Java's syntactic innovation"?

        HelloWorld frenchGreeting = new HelloWorld() {
            String name = "tout le monde";
            public void greet() {
                greetSomeone("tout le monde");
            }
            public void greetSomeone(String someone) {
                name = someone;
                System.out.println("Salut " + name);
            }
        };

        <URL: https://docs.oracle.com/javase/tutorial/java/javaOO/anonym
        ousclasses.html>


Marko

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Thread

List of Functions Richard Riehle <rriehle@itu.edu> - 2016-03-27 12:38 -0700
  Re: List of Functions Erik <python@lucidity.plus.com> - 2016-03-28 00:10 +0100
  Re: List of Functions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-03-28 01:19 +0100
    Re: List of Functions Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-03-28 10:51 +0300
      Re: List of Functions Marko Rauhamaa <marko@pacujo.net> - 2016-03-28 11:58 +0300
        Re: List of Functions Dan Sommers <dan@tombstonezero.net> - 2016-03-28 12:39 +0000
          Re: List of Functions Marko Rauhamaa <marko@pacujo.net> - 2016-03-28 16:40 +0300
            Re: List of Functions Chris Angelico <rosuav@gmail.com> - 2016-03-29 08:40 +1100
              Re: List of Functions Steven D'Aprano <steve@pearwood.info> - 2016-03-29 09:52 +1100
                Re: List of Functions Chris Angelico <rosuav@gmail.com> - 2016-03-29 10:40 +1100
                Re: List of Functions Marko Rauhamaa <marko@pacujo.net> - 2016-03-29 07:49 +0300
              Re: List of Functions Marko Rauhamaa <marko@pacujo.net> - 2016-03-29 07:45 +0300
                Re: List of Functions Chris Angelico <rosuav@gmail.com> - 2016-03-29 16:00 +1100
      Re: List of Functions Steven D'Aprano <steve@pearwood.info> - 2016-03-29 10:40 +1100
        Re: List of Functions Random832 <random832@fastmail.com> - 2016-03-28 19:50 -0400
        Re: List of Functions Chris Angelico <rosuav@gmail.com> - 2016-03-29 10:54 +1100
        Re: List of Functions Rustom Mody <rustompmody@gmail.com> - 2016-03-28 19:23 -0700
        Re: List of Functions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-03-29 03:45 +0100
          Re: List of Functions Chris Angelico <rosuav@gmail.com> - 2016-03-29 14:33 +1100
          Re: List of Functions Rustom Mody <rustompmody@gmail.com> - 2016-03-28 23:21 -0700
            Re: List of Functions Marko Rauhamaa <marko@pacujo.net> - 2016-03-29 09:50 +0300
            Re: List of Functions Christian Gollwitzer <auriocus@gmx.de> - 2016-03-29 08:52 +0200

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