Michał Pawlik majk-p
majk-p
/ safeorderline.scala
Created
July 14, 2022 20:52
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| //> using scala "2" | |
| //> using lib "eu.timepit::refined:0.10.1" | |
| import eu.timepit.refined.auto._ | |
| import eu.timepit.refined.types.string._ | |
| import eu.timepit.refined.types.numeric._ | |
| case class OrderLine(product: NonEmptyString, quantity: PosInt) | |
| OrderLine("100", 10) |
majk-p
/ safeorderwithcirce.sc
Last active
July 14, 2022 22:00
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| //> using scala "2" | |
| //> using lib "org.typelevel::cats-core:2.8.0" | |
| //> using lib "eu.timepit::refined:0.10.1" | |
| //> using lib "io.circe::circe-core:0.14.2" | |
| //> using lib "io.circe::circe-parser:0.14.2" | |
| //> using lib "io.circe::circe-generic:0.14.2" | |
| //> using lib "io.circe::circe-refined:0.14.2" | |
| import cats.data.NonEmptyList |
majk-p
/ Playground.scala
Last active
November 4, 2022 07:30
bi-directional cross stream communication using fs2
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| //> using lib "org.typelevel::cats-effect:3.3.12" | |
| //> using lib "co.fs2::fs2-core:3.3.0" | |
| package net.michalp.playground | |
| import cats.effect.IO | |
| import cats.effect.IOApp | |
| import cats.effect.std.Queue | |
| import cats.effect.std.QueueSink | |
| import cats.effect.std.QueueSource |
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| //> using scala "3" | |
| //> using lib "org.typelevel::cats-effect:3.3.12" | |
| //> using lib "co.fs2::fs2-core:3.3.0" | |
| package net.michalp.conway | |
| import cats.effect.IO | |
| import cats.effect.IOApp | |
| import fs2.Stream |
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| //> using scala "2.13" | |
| sealed trait SampleTrait | |
| case class SampleValue(v: String) extends SampleTrait | |
| object SampleSingleton extends SampleTrait | |
| def f[X <: SampleTrait](x: X): Unit = | |
| println(x) | |
| def g[X](x: X)(implicit ev: X <:< SampleTrait): Unit = |
majk-p
/ derive-show.scala
Last active
April 23, 2023 20:26
Scala-cli script to demostrate Show typeclass derivation with kittens
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| //> using dep "org.typelevel::kittens:3.0.0" | |
| //> using dep "org.typelevel::cats-core:2.9.0" | |
| import cats.Show | |
| import cats.implicits.given | |
| import cats.derived.* | |
| case class Person(name: String, surname: String, age: Int) | |
| given Show[Person] = semiauto.show |
majk-p
/ error.scala
Last active
July 3, 2023 08:38
MatchError: null with endpoint output initialized after endpoint definition - swagger interpreter
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| //> using scala "3.3.0" | |
| //> using dep "org.typelevel::cats-effect:3.5.1" | |
| //> using dep "com.softwaremill.sttp.tapir::tapir-core:1.6.0" | |
| //> using dep "com.softwaremill.sttp.tapir::tapir-cats:1.6.0" | |
| //> using dep "com.softwaremill.sttp.tapir::tapir-swagger-ui-bundle:1.6.0" | |
| import cats.effect.ExitCode | |
| import cats.effect.IO | |
| import cats.effect.IOApp |
majk-p
/ error.scala
Created
July 3, 2023 08:38
MatchError: null with endpoint output initialized after endpoint definition - http4s server interpreter
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| //> using scala "3.3.0" | |
| //> using dep "org.typelevel::cats-effect:3.5.1" | |
| //> using dep "com.softwaremill.sttp.tapir::tapir-core:1.6.0" | |
| //> using dep "com.softwaremill.sttp.tapir::tapir-cats:1.6.0" | |
| //> using dep "com.softwaremill.sttp.tapir::tapir-http4s-server:1.6.0" | |
| //> using dep "com.softwaremill.sttp.tapir::tapir-swagger-ui-bundle:1.6.0" | |
| //> using dep "org.http4s::http4s-ember-server:0.23.22" | |
| //> using dep "org.slf4j:slf4j-simple:1.7.36" | |
| import cats.effect.ExitCode |
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| //> using scala "3.3.0" | |
| //> using dep "dev.optics::monocle-core:3.2.0" | |
| //> using dep "dev.optics::monocle-macro:3.2.0" | |
| import monocle.syntax.all._ | |
| case class Product(id: String, name: String, price: Double) | |
| case class Shelf(id: String, product: Product) | |
| case class Display(id: String, kind: "Ambient" | "Chilled", shelves: List[Shelf] ) | |
| case class Alley(id: String, displays: List[Display]) |
majk-p
/ main.scala
Created
December 15, 2023 11:35
Reproduction example of "Scala211 doesn't support inline modifiers" when printing scala meta tree
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| //> using scala "2" | |
| //> using dep "org.scalameta::scalameta:4.8.14" | |
| import scala.meta._ | |
| import scala.meta.dialects.Scala3 | |
| object Codegen { | |
| def codeWithInline = | |
| source""" | |
| object Generated { |