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Many Types Make Light Work

This is the talk which I gave at NSScotland 2014 in Edinburgh on October 26, 2014. I will be giving it at NSNorth 2015, April 10-12, 2015.

The talk is written in Deckset-flavoured Markdown.

A recording of my presentation of v1.0 of this talk at NSScotland is available.

Synopsis (for the conf)

Every programmer regularly faces the challenges of managing complexity and change. Subclassing can help us simplify, by sharing code and interfaces between related parts of our program. But when requirements change out from under our class hierarchy, unanticipated fragility can mean bugs, sweat and tears. Swift offers us a better way.

TL;DR

Subclassing is a broken idea, so factor & compose instead where possible, and when Cocoa makes you subclass, do it in a factored, composable way.

Rob Rix's Projects

extraction icon extraction

A tool to audio tracks from QuickTime files, e.g. for YouTube → iTunes use

focus icon focus

An experimental language of little interest to anyone.

forthward icon forthward

A toy concatenative language to explore K ( http://k-framework.org )

ghc-events-parallel icon ghc-events-parallel

Drop-in replacement for ghc-events, enabling eventlogs for the parallel Haskell runtime

ghc-mod icon ghc-mod

Happy Haskell Hacking for editors. CI: https://gitlab.com/dxld/ghc-mod/pipelines

glitch icon glitch

An increasingly charming view of your git repositories written with sinatra, grit, and love; just add browser/RSS reader.

grid icon grid

Rational window management

hammer icon hammer

Parsing and pattern matching in Objective-C

hammer.swift icon hammer.swift

When all you have is a parser, everything looks like a language.

hammerc icon hammerc

Compiler for Hammer (http://github.com/robrix/Hammer)

hare icon hare

The Haskell Refactoring Tool

haskell-lsp icon haskell-lsp

Haskell library for the Microsoft Language Server Protocol

haskell-src-exts icon haskell-src-exts

Manipulating Haskell source: abstract syntax, lexer, parser, and pretty-printer

higher-order icon higher-order

Higher-order (type-indexed) analogues of various typeclasses, and machinery over them.

hp2any icon hp2any

Haskell space profiling toolset

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