trellis/dist/undo-history/core/index.d.ts

Agentic State Engine — event-sourced causal graph with branching, decision traces, and realtime sync for AI-native applications

/**
 * Undo-history core — generic command stack (ADR 0034 wedge 8).
 *
 * Framework-free, DOM-free, timer-free: state only changes through
 * explicit `actions`, so every behavior is deterministic and testable in
 * Node. It is a service core — it renders nothing; it augments every
 * domain that can be edited (editor/code/table/composer cores).
 *
 *   const undo = createUndoHistoryCore();
 *   undo.actions.push(insertChar, { coalesce: true }); // typing burst
 *   undo.actions.undo();                               // one step back
 *   undo.actions.redo();
 *
 * Contract: the caller executes a command, then pushes it. Undo executes
 * the pushed command's `invert()`; redo re-executes the original. The core
 * owns grouping (one gesture = one step), coalescing (adjacent same-key
 * commands merge), depth limiting, and redo invalidation on new edits.
 *
 * @module trellis/undo-history
 */
import type { UndoConfig, UseUndoReturn } from './types.js';
export type { UndoActions, UndoCommand, UndoConfig, UndoPushOptions, UndoState, UseUndoReturn, } from './types.js';
export declare function createUndoHistoryCore(config?: UndoConfig): UseUndoReturn;
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