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(ns gjs-example.core)

(defn main []
  (set! (-> js/imports .-gi .-versions .-Gtk) "3.0")
  (let [Gtk (doto (-> js/imports .-gi .-Gtk) (.init nil))
        window (Gtk.Window.
                (clj->js
                 {:type (-> Gtk .-WindowType .-TOPLEVEL)
                  :title "A default title"
                  :default_width 300

PlumpMath

Method for Emulating Higher-Kinded Types in Rust

Intro

I've been fiddling about with an idea lately, looking at how higher-kinded types can be represented in such a way that we can reason with them in Rust here and now, without having to wait a couple years for what would be a significant change to the language and compiler.

There have been multiple discussions on introducing higher-ranked polymorphism into Rust, using Haskell-style Higher-Kinded Types (HKTs) or Scala-looking Generalised Associated Types (GATs). The benefit of higher-ranked polymorphism is to allow higher-level, richer abstractions and pattern expression than just the rank-1 polymorphism we have today.

As an example, currently we can express this type:

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*.tar.gz
.sentinel.*

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# install nix (5.5 mins)
curl https://nixos.org/nix/install | sh

# open a new shell to source nix
bash

# query available haskell compilers
nix-env -qaP -A nixpkgs.haskell.compiler [QUERY]

# install ghc (2.5 mins, cached binary)

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OSX에서 'brew'와 함께하는 qt5 설치

0. 인터넷에 연결

• 수단과 방법을 가리지 말고 네트워크에 연결하여, 인터넷이 가능하도록 환경을 구성한다.

1. Xcode 최신버전

• 'App Store'에 가셔서 Xcode 최신버전을 설치합니다. 단순하게 설치만 하시면 됩니다.

2. brew 설치하기

• 'Launchpad' - '기타' - '터미널'을 실행한다.

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User env setup

Setup your user environment just the way you want with Nix.

1. Add packageOverrides to the attrset returned by your ${HOME}/.nixpkgs/config.nix (see my example above).

2. Then with one command you can setup your whole environment: nix-env -i desktop-mbbx6spp.

Then all you need is a simple ~/.bash_profile script like so:

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// MIT License - Copyright (c) 2016 Can Güney Aksakalli
// https://aksakalli.github.io/2014/02/24/simple-http-server-with-csparp.html

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.IO;

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(ns jme3-example.core
  (:import com.jme3.app.SimpleApplication
           com.jme3.material.Material
           com.jme3.math.Vector3f
           com.jme3.scene.Geometry
           com.jme3.scene.shape.Box
           com.jme3.texture.Texture))

(defn application
  "Create an jMonkeyEngine application."

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class ClojureWrap(ns: String, objName: String) {
  import clojure.lang.{RT,Var}
  import scala.collection.mutable.HashMap

  RT.loadResourceScript(objName+".clj")
  val obj = ns+"."+objName
  val funcs = new HashMap[String, Var]
  
  def /(func: String, a: Any): Object =
    funcs.getOrElseUpdate(func, RT.`var`(obj, func)).invoke(a.asInstanceOf[Object])

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int steps = 40;
Orbiter[] Orb = new Orbiter[steps]; // tmpX, tmpY, tmpOff, tmpDiam, tmpIncr
float r = 0;
float rad, off;
float the = 0;

void setup() {
  float x, y;
  size(500, 500);
  background(0);