Function make

packages/effect/src/unstable/persistence/KeyValueStore.ts:224–255

(options: MakeOptions)

 * @since 4.0.0
 */
export const make = (options: MakeOptions): KeyValueStore =>
  KeyValueStore.of({
    [TypeId]: TypeId,
    has: (key) => Effect.map(options.get(key), Predicate.isNotUndefined),
    isEmpty: Effect.map(options.size, (size) => size === 0),
    modify: (key, f) =>
      Effect.flatMap(
        options.get(key),
        (o) => {
          if (o === undefined) {
            return Effect.undefined
          }
          const newValue = f(o)
          return Effect.as(
            options.set(key, newValue),
            newValue
          )
        }
      ),
    modifyUint8Array: (key, f) =>
      Effect.flatMap(
        options.getUint8Array(key),
        (o) => {
          if (o === undefined) {
            return Effect.undefined
          }
          const newValue = f(o)
          return Effect.as(options.set(key, newValue), newValue)
        }
      ),
    ...options
  })

/**
 * Adapts a string-only backing store into a `KeyValueStore`.