feat(signal2): external types

core/signal2/src/type.ts

@@ -0,0 +1,42 @@
+import type {MaybePromise} from '@alwatr/type';
+
+/**
+ * Subscribe options type.
+ */
+export interface SubscribeOptions {
+  /**
+   * If true, the listener will be called only once.
+   */
+  once?: true;
+
+  /**
+   * If true, the listener will be called before other.
+   */
+  priority?: true;
+
+  /**
+   * If true, the listener will be defined disabled by default.
+   */
+  disabled?: true;
+
+  /**
+   * If true, calls the listener (callback) with previous signal value (if dispatched before).
+   */
+  receivePrevious?: boolean;
+
+  /**
+   * If defined, calls the listener (callback) with debounce.
+   */
+  // debounce?: 'AnimationFrame' | number;
+}
+
+export type ListenerCallback<TValue> = (value: TValue) => MaybePromise<void>;
+
+export interface ListenerObject<TValue> {
+  callback: ListenerCallback<TValue>;
+  options: SubscribeOptions;
+}
+
+export interface SubscribeResult {
+  unsubscribe: () => void;
+}