Akim Boyko akimboyko

Provide an implementation of the abstract class Nat that represents non-negative integers

Do not use standard numerical classes in this implementation. Rather, implement a sub-object and sub-class:

class Zero : Nat
class Succ(n: Nat) : Nat

One of the number zero, then other for strictly positive numbers.

Five principle of code generation by @KathleenDollard

Code generation has to be under your control, your control being the organization or the individual.
Metadata is discreet and more morphable, and actually metadata is a subgenre all on its own.
Code generation has to be an easy process. It should be a part of the normal continuous integration build process.
Handcrafted code is sacred and protected.
Generated code should be an equal or a better quality than nongenerated code.

This gist contains:

ExecuteScriptCs.cs — class that are able to execute ScriptCs from another .Net application
ScriptModule.cs — AutoFac configuration for ScriptCs/NuGet dependencies
Program.cs — command-line example
Sample.csx — sample ScriptCs script
packages.config — NuGet packages configuration

К завтрашнему тренингу по JavaScript просьба установить самостоятельно или с помощью Chocolatey:

	Provide an implementation of the abstract class Nat that represents non-negative integers

	abstract class Nat {
	def isZero: Boolean
	def predecessor: Nat
	def successor: Nat
	def + (that: Nat): Nat
	def - (that: Nat): Nat
	}

	def isCloseEnough(x : Double, y : Double) = {
	val tolerance = 0.0001
	Math.abs((x - y) / x) < tolerance
	}

	def fixedPoint(f : Double => Double)(firstGuess : Double) = {
	def iterate(guess : Double) : Double = {
	val next = f(guess)
	if(isCloseEnough(guess, next)) next
	else iterate((next + guess) / 2)

	let magicSquare = (fun () ->
	let randomSequence =
	(seq { 1 .. N * N })
	\|> Seq.sortBy(fun n -> random.Next())
	\|> Seq.toArray

	Matrix.Generic.init N N
	(fun nRow nColumn -> randomSequence.[nRow * N + nColumn]))()

	var edge = require('edge');

	// Call C# async lambda from node.js
	// Compile source code on the fly
	// Use C# dynamics to access objects passed from JavaScript
	var funcCs = edge.func('cs', function() { /*
	using System.Threading.Tasks;

	async (dynamic input) =>
	{

	// load all require references
	#r "System.Drawing"
	#r "D:\work\Courses\MetaProgramming\Snippets\Scripting\ScriptCs\SeleniumWebDriver\bin\WebDriver.dll"
	#r "D:\work\Courses\MetaProgramming\Snippets\Scripting\ScriptCs\SeleniumWebDriver\bin\WebDriver.Support.dll"
	#r "D:\work\Courses\MetaProgramming\Snippets\Scripting\ScriptCs\SeleniumWebDriver\bin\nunit.framework.dll"
	#r "D:\work\Courses\MetaProgramming\Snippets\Scripting\ScriptCs\SeleniumWebDriver\bin\FluentAssertions.dll"

	using System;
	using OpenQA.Selenium;
	using OpenQA.Selenium.Firefox;

	<html>
	<head>
	<meta charset="utf-8">
	<title>Mocha Tests</title>
	<link rel="stylesheet" href="css/mocha.css" />
	</head>
	<body>
	<div id="mocha"></div>
	<script src="scripts/require.js"></script>
	<script>