import type { AccessorFactory, ColumnBinding, ComponentDef, ComponentId, EntityHandle, Schema } from '@ecsia/schema';
import type { Backing, ColumnLayout, TypedArray } from '../memory/index.js';
import { columnKey } from '../memory/index.js';
import type { SidecarKey } from './sidecar.js';
export interface AccessorWorld {
    trackWrite(index: number, componentId: ComponentId, fieldIndex?: number): void;
    handleIndex(handle: EntityHandle): number;
    readonly tracking: {
        readonly active: boolean;
    };
    sidecarRead(key: SidecarKey, index: number, gen: number): unknown;
    sidecarWrite(key: SidecarKey, index: number, gen: number, value: unknown): void;
    /** The generation embedded in `handle` — the RF-HYGIENE stamp source. For a live entity this equals
     * the index's live generation; for an observer-window ref bound to a DYING handle it names the dead
     * tenant, so its rich reads hit the pending-clear stash and never alias a same-window re-mint. */
    handleGeneration(handle: EntityHandle): number;
}
export interface AccessorBinding {
    readonly world: AccessorWorld;
    readonly componentId: ComponentId;
}
export interface AccessorInstanceBase {
    __idx: number;
    __eid: EntityHandle;
    __binding: AccessorBinding | null;
    __rebind(newBacking: Backing): void;
    /**
     * Fallback-grow rebind for ONE column. Each column-bearing field owns a SEPARATE backing buffer
     * (one `buffers.column` per field), so a fallback grow re-points exactly that field's view. A
     * whole-instance `__rebind` would alias every field onto the single grown backing (corrupting the
     * other fields' columns); the buffers layer always targets the field that actually grew.
     */
    __rebindField(fieldIndex: number, newBacking: Backing): void;
}
export declare function bindingsFor(columns: ReadonlyArray<{
    view: TypedArray;
    layout: ColumnLayout;
}>): ColumnBinding[];
export declare function makeAccessorFactory<S extends Schema>(def: ComponentDef<S>): AccessorFactory<S>;
export { columnKey };
export type { ColumnKey } from '../memory/index.js';
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