import { type HostMessage, MikroRuntime } from '@mikrojs/native';
import { Subject } from 'rxjs';
export interface DevRunnerOptions {
    script: string;
    memLimit?: number;
    fsRoot?: string;
    fsLimit?: number;
    fsReadMax?: number;
    env?: Record<string, string>;
    /**
     * User-provided stub sources keyed by module name (e.g. 'native:mikro/wifi').
     * These override the default stubs. TypeScript is stripped before registration.
     */
    stubSources?: Record<string, string>;
    /**
     * Enable per-module memory profiling. Profile data is collected as modules
     * are loaded and can be read via runtime.getProfile() after execution.
     */
    profile?: boolean;
}
export interface DevRunner {
    /** Observable stream of host messages from the QuickJS runtime. */
    messages$: Subject<HostMessage>;
    /** Post a message into the QuickJS runtime (delivered on next loop tick). */
    postMessage(type: string, data: string): void;
    /** Start the event loop. Returns a cleanup function. */
    start(): () => void;
    /** Register a callback that runs on each tick, after loopOnce + drainMessages. */
    onTick(callback: () => void): void;
    /** When true, skips loopOnce (timers/promises freeze) but tick callbacks still run. */
    paused: boolean;
    /** The underlying MikroRuntime instance. */
    runtime: MikroRuntime;
}
/**
 * Create a QuickJS dev runner for the simulator.
 * Default stubs provide mock implementations for all native modules.
 * User stubs (from sim/*.stub.ts) override defaults.
 */
export declare function createDevRunner(options: DevRunnerOptions): DevRunner;
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