import { Signal } from "signal-polyfill";
//#region src/core/signals/primitives.d.ts
/** Read a signal value without tracking it as a dependency. */
declare const untrack: <T>(fn: () => T) => T;
/** A writable reactive value (read + write). */
type Signal$1<T> = Signal.State<T>;
/** A derived reactive value that re-evaluates when its dependencies change (read-only). */
type Computed<T> = Signal.Computed<T>;
/** A read-only view of a reactive value. */
type ReadonlySignal<T> = Omit<Signal.State<T>, 'set'>;
interface SignalOptions<T> {
  equals?: (t: T, t2: T) => boolean;
}
/** Create a writable reactive value. */
declare function signal<T>(initialValue: T, options?: SignalOptions<T>): Signal$1<T>;
/** Create a computed reactive value. */
declare function computed<T>(fn: () => T, options?: SignalOptions<T>): Computed<T>;
/**
 * Update a writable signal. Two forms:
 *
 * - **Updater function** `(current) => next`. Works for any signal type,
 *   including `Signal<T | undefined>` — handle undefined in the updater.
 * - **Partial object** to merge into the current state. Requires
 *   `T extends object`.
 *
 * @example
 * update(state, { playbackRate: 2 });
 * update(state, (s) => ({ ...s, count: s.count + 1 }));
 * update(maybeUndefinedSignal, (current) => current ?? defaultValue);
 */
declare function update<T>(signal: Signal$1<T>, updater: (current: T) => T): void;
declare function update<T extends object>(signal: Signal$1<T>, updater: Partial<T>): void;
/**
 * Read every signal in a map and return a plain object snapshot. Each read
 * tracks in the surrounding Computed/Effect — equivalent to calling `.get()`
 * on a single `Signal<S>` over the merged shape.
 *
 * Convenience for behaviors that pass whole state/context snapshots to pure
 * helpers; prefer per-field reads when only a few fields are needed.
 */
declare function snapshot<M extends Record<string, ReadonlySignal<unknown>>>(map: M): { [K in keyof M]: M[K] extends {
  get(): infer V;
} ? V : never; };
//#endregion
export { Computed, ReadonlySignal, Signal$1 as Signal, SignalOptions, computed, signal, snapshot, untrack, update };
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