/**
 * Script Execution
 *
 * Public API for executing Rill scripts.
 * Provides both full execution and step-by-step execution.
 */
import type { ScriptNode } from '../../types.js';
declare module '../../error-classes.js' {
    interface RuntimeError {
        readonly haltValue?: RillValue;
        readonly haltCatchable?: boolean;
        readonly haltSignal?: RuntimeHaltSignal;
    }
}
import type { ExecutionResult, ExecutionStepper, RuntimeContext } from './types/runtime.js';
import type { RillValue } from './types/structures.js';
import { RuntimeHaltSignal } from './types/halt.js';
/**
 * Execute a parsed Rill script.
 *
 * @param script The parsed AST (from parse())
 * @param context The runtime context (from createRuntimeContext())
 * @returns The final value and all captured variables
 */
export declare function execute(script: ScriptNode, context: RuntimeContext): Promise<ExecutionResult>;
/**
 * Create a stepper for controlled step-by-step execution.
 * Allows the caller to control the execution loop and inspect state between steps.
 *
 * @param script The parsed AST (from parse())
 * @param context The runtime context (from createRuntimeContext())
 * @returns A stepper for step-by-step execution
 */
export declare function createStepper(script: ScriptNode, context: RuntimeContext): ExecutionStepper;