export interface instanceOf<T, Iso = T> extends declare<T, Iso> {
  readonly "Rebuild": instanceOf<T, Iso>
}

/**
 * Creates a schema that validates values using `instanceof`.
 * Decoding and encoding pass the value through unchanged.
 *
 * **Example** (Defining a schema for a built-in class)
 *
 * ```ts
 * import { Schema } from "effect"
 *
 * const DateSchema = Schema.instanceOf(Date)
 *
 * const decoded = Schema.decodeUnknownSync(DateSchema)(new Date("2024-01-01"))
 * // decoded: Date
 * ```
 *
 * @category constructors
 * @since 3.10.0
 */
export function instanceOf<C extends abstract new(...args: any) => any, Iso = InstanceType<C>>(
  constructor: C,
  annotations?: Annotations.Declaration<InstanceType<C>> | undefined
): instanceOf<InstanceType<C>, Iso> {
  return declare((u): u is InstanceType<C> => u instanceof constructor, annotations)
}