zlangley

Keybase proof

I hereby claim:

• I am zlangley on github.
• I am zlangley (https://keybase.io/zlangley) on keybase.
• I have a public key whose fingerprint is 5D32 FC6E 8D11 DBB9 BC02 60FC BC01 F550 E214 9E3E

To claim this, I am signing this object:

zlangley

import Dispatch
import PromiseKit

/// A wrapper for a function that creates a Promise.
public class PromiseOperation<T> {
    private let makePromise: () -> Promise<T>

    public init(makePromise: @escaping () -> Promise<T>) {
        self.makePromise = makePromise
    }

zlangley

//
//  OrderedSet.swift
//  OrderedSet
//
//  Created by Zach Langley on 11/17/15.
//  Copyright © 2015 Zach Langley. All rights reserved.
//

public struct OrderedSet<Element: Hashable>: ArrayLiteralConvertible, RangeReplaceableCollectionType {
    private var indexForElement: Dictionary<Element, Int> = [:]

zlangley

# Assumes all header/implementation files want the filename on the second line.
# Run from your src directory.
for f in `find . -name '*.[mh]'`; do sed -i "" "2 s|.*|//  `basename $f`|" "$f"; done

zlangley

def memoize[T, U](f: T => U) = {
    val cache = scala.collection.mutable.HashMap[T, U]()
    (t: T) => {
        if (!cache.contains(t)) {
            cache.put(t, f(t))
        }
        cache.get(t).get
    }
}

zlangley

func memoize<T: Hashable, U>(f: ((T -> U), T) -> U) -> (T -> U) {
    var cache = [T: U]()
    var memoized: (T -> U)!
    memoized = { n in
        if cache[n] == nil {
            cache[n] = f(memoized, n)
        }
        return cache[n]!
    }
    return memoized