Effect-TS/effect effect@3.12.10

on GitHub

Patch Changes

• #4412 e30f132 Thanks @KhraksMamtsov! - Fix STM unification

• #4403 33fa667 Thanks @gcanti! - Duration: fix format output when the input is zero.

  Before

  import { Duration } from "effect"
  
  console.log(Duration.format(Duration.zero))
  // Output: ""

  After

  import { Duration } from "effect"
  
  console.log(Duration.format(Duration.zero))
  // Output: "0"

• #4411 87f5f28 Thanks @gcanti! - Enhance TagClass and ReferenceClass to enforce key type narrowing, closes #4409.

  The key property in TagClass and ReferenceClass now correctly retains its specific string value, just like in Effect.Service

  import { Context, Effect } from "effect"
  
  // -------------------------------------------------------------------------------------
  // `key` field
  // -------------------------------------------------------------------------------------
  
  class A extends Effect.Service<A>()("A", { succeed: { a: "value" } }) {}
  
  // $ExpectType "A"
  A.key
  
  class B extends Context.Tag("B")<B, { a: "value" }>() {}
  
  // $ExpectType "B"
  B.key
  
  class C extends Context.Reference<C>()("C", { defaultValue: () => 0 }) {}
  
  // $ExpectType "C"
  C.key

• #4397 4dbd170 Thanks @thewilkybarkid! - Make Array.makeBy dual