import type { Buffers } from '../memory/index.js';
/** Synthetic component id keying the changeVersion column (never in any signature). */
declare const CHANGE_VERSION_COMPONENT_ID = 4294967293;
export declare class ChangeVersionStore {
    #private;
    /** Whether trackWrite stamps at all: false ⇒ zero stamp memory, zero stamp stores. */
    enabled: boolean;
    constructor(buffers: Buffers, initialCapacity: number);
    /**: record `tick` at entity `index`. No-op when stamping is disabled. */
    stamp(index: number, tick: number): void;
    /**: the tick at which the entity was last stamped (0 if never / no column). */
    versionAt(index: number): number;
    /**: `changeVersion[index] > since` (strict — a caller at T ignores its own T). */
    changedSince(index: number, since: number): boolean;
    /**
     * ROLLBACK-ONLY (@ecsia/rollback capture): copy the stamps of entity indices [0, count)
     * into `out`, returning the number written — 0 when stamping is disabled or the column was never
     * allocated (nothing to roll back).
     */
    captureInto(out: Uint32Array, count: number): number;
    /**
     * ROLLBACK-ONLY: write `src[0, count)` back over the stamps and zero everything above — those are
     * post-checkpoint writes, and a recycled index must not read a future tick as its own. `count === 0`
     * means the checkpoint had no stamps at all, so the whole column resets.
     */
    restoreFrom(src: Uint32Array, count: number): void;
    /**: reset the column to 0 at a serial flush (once per ~2.27 years). */
    resetAll(): void;
}
export { CHANGE_VERSION_COMPONENT_ID };
//# sourceMappingURL=change-version.d.ts.map