Piotr Gorzelany pgorzelany

pgorzelany / ProtocolExtensions.swift

Last active January 15, 2016 19:06

Shows the edge cases of protocol extension and implementation in Swift

	// Protocol defines a mandatory function
	protocol FooType {
	func introduce() -> Void
	}

	// Default implementation of the protocol requirement
	extension FooType {
	func introduce() {
	print("This is the FooType")
	}

pgorzelany / SPSimulation.swift

Last active September 23, 2015 10:10

Contains a collection of methods and data types needed to perform a random walk simulation of a stock price

	//
	// Created by Piotr Gorzelany on 23/09/15.
	// Copyright © 2015 Piotr Gorzelany. All rights reserved.
	//

	/** Contains a collection of methods and data types needed to perform a random walk simulation of a stock price.
	The random walk is based on an asumption of a normal distribution of the stock daily rates of return. */
	public struct SPSimulation {

	/** Contains stock information needed to perform a simulation */

pgorzelany / pipes.swift

Last active September 23, 2015 07:35

Basic pipes implementation in Swift

	/* Used for piping the results of consecutive functions
	*/

	infix operator \|> { associativity left precedence 140 }
	func \|> <I, O>(input: I, transform: (I) -> O) -> O {
	return transform(input)
	}

	let root = 4 + 3 * 4 \|> {Double($0)} \|> sqrt
	print(root) // 4