/**
 * RPC protocol between the main thread and the SQLite worker.
 * All requests carry a unique `id`; responses echo the same id so the main thread
 * can resolve the right pending promise.
 */
import type { SqliteEncryptionErrorCode } from './errors.js';
/** Matches `@sqlite.org/sqlite-wasm`'s internal SqlValue type. Boolean is not a native SQLite type. */
export type SqlValue = string | number | bigint | null | Uint8Array;
/** A row returned in 'array' rowMode — one value per column, in select order. */
export type ResultRow = SqlValue[];
export type WorkerRequest = {
    type: 'init';
    id: number;
    dbName: string;
    ephemeral: boolean;
    poolDirectory?: string;
    encryptionKey?: Uint8Array;
} | {
    type: 'close';
    id: number;
} | {
    type: 'deleteDb';
    id: number;
    dbName: string;
} | {
    type: 'run';
    id: number;
    sql: string;
    bind?: SqlValue[];
} | {
    type: 'all';
    id: number;
    sql: string;
    bind?: SqlValue[];
} | {
    type: 'export';
    id: number;
} | {
    type: 'begin';
    id: number;
} | {
    type: 'commit';
    id: number;
} | {
    type: 'rollback';
    id: number;
};
export type WorkerResponse = {
    type: 'ok';
    id: number;
    rows?: ResultRow[];
    changes?: number;
    bytes?: Uint8Array;
} | {
    type: 'err';
    id: number;
    message: string;
    /**
     * Set when the worker detected an encryption-shaped failure. The main thread
     * uses this to re-throw the error as a {@link SqliteEncryptionError} with the
     * matching code. Absent on non-encryption failures (untyped paths preserved).
     */
    encryptionCode?: SqliteEncryptionErrorCode;
};
export type WorkerRequestType = WorkerRequest['type'];
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