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package data | |
import monocle.Lens | |
trait HasLens[A, B] { | |
def lens: Lens[A, B] | |
} | |
object HasLens extends HasLensSyntax0 |
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import cats.implicits._ | |
import cats.effect.Effect | |
import fs2.{Pipe, Stream} | |
import fs2.async.Promise | |
import fs2.async.mutable.Queue | |
import scala.concurrent.ExecutionContext | |
def mapAsync[F[_]: Effect, A, B](parallelism: Int)(f: A => F[B])(implicit executionContext: ExecutionContext): Pipe[F, A, B] = { stream => | |
Stream.eval(Queue.bounded[F, Option[F[Either[Throwable, B]]]](parallelism)).flatMap { q => |
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#!/usr/bin/swift | |
import Foundation | |
let path = URL(fileURLWithPath: NSString(string: "~/Library/Application Support/.ffuserdata").expandingTildeInPath) | |
let data = try! NSData(contentsOf: path) as Data | |
let dictionary = try! NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data) as! NSDictionary | |
let mutableDictionary = dictionary.mutableCopy() as! NSMutableDictionary | |
for (key, value) in mutableDictionary { |
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# Black magic and GADT serialization | |
I thought it would be a cool exercise to write a simple but flexible RPC system in Haskell. The idea was that the server would have some functions and values available for you to use, and you can assemble them into a function call as you like, or provide your own parameters. In the end, writing the serialization and deserialization code ended up leading to some far more interesting challenges. | |
Some types, such as functions, cannot be serialized so they must be made available on the server. I represented this with the following GADT: | |
```haskell | |
type ValueID = Word32 | |
type TypeID = Word32 |
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// Just before switching jobs: | |
// Add one of these. | |
// Preferably into the same commit where you do a large merge. | |
// | |
// This started as a tweet with a joke of "C++ pro-tip: #define private public", | |
// and then it quickly escalated into more and more evil suggestions. | |
// I've tried to capture interesting suggestions here. | |
// | |
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_, | |
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant, |
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ּ_בּ | |
בּ_בּ | |
טּ_טּ | |
כּ‗כּ | |
לּ_לּ | |
מּ_מּ | |
סּ_סּ | |
תּ_תּ | |
٩(×̯×)۶ | |
٩(̾●̮̮̃̾•̃̾)۶ |