Function ReadonlySet

packages/effect-app/src/Schema/ext.ts:341–366

(value: ValueSchema)

/** Like the default Schema `ReadonlySet` but from Array, with default helpers. */
export const ReadonlySet = <ValueSchema extends S.Top>(value: ValueSchema) =>
  pipe(
    ReadonlySetFromArray(value),
    (s) =>
      Object.assign(s, {
        /**
         * Construction-only default `new Set()`. Applied only when the field
         * is omitted from `.make(...)` input. NOT applied during decode —
         * cannot be used to JIT-migrate database fields. See file-level
         * note.
         */
        withConstructorDefault: s.pipe(
          S.withConstructorDefault(Effect.sync(() => new Set<ValueSchema["Type"]>()))
        ),
        /**
         * Decode-time default `new Set()`. **Discouraged for persisted
         * data:** a missing field may be data corruption, not an old-shape
         * document; silently substituting an empty set hides the problem.
         * Prefer an explicit, preferably versioned migration over a
         * decode-time fallback. See file-level note.
         */
        withDecodingDefaultType: s.pipe(
          S.withDecodingDefaultType(Effect.sync(() => new Set<ValueSchema["Type"]>()))
        )
      })
  )

/** Like the default Schema `ReadonlyMap` but from Array, with default helpers. */
export const ReadonlyMap = <KeySchema extends S.Top, ValueSchema extends S.Top>(pair: {