/**
 * RTVM Interpreter
 *
 * Deterministic bytecode interpreter for rule evaluation (Enhancement #3).
 */
import { type BytecodeProgram } from './bytecode.js';
/**
 * Execution context providing field values
 */
export interface ExecutionContext {
    /** Get field value by path (e.g., "loan.amount") */
    getField(path: string): unknown;
    /** Optional: Get current timestamp (for deterministic testing) */
    getNow?: () => number;
}
/**
 * Execution result
 */
export interface ExecutionResult {
    /** Final boolean result */
    result: boolean;
    /** Execution metrics */
    metrics: {
        instructionsExecuted: number;
        maxStackDepth: number;
        executionTimeMs: number;
    };
    /** Any errors encountered */
    error?: string;
}
/**
 * Execution options
 */
export interface ExecutionOptions {
    /** Maximum instructions to execute (safety limit) */
    maxInstructions?: number;
    /** Enable debug tracing */
    debug?: boolean;
}
/**
 * RTVM Interpreter
 */
export declare class RTVMInterpreter {
    private program;
    private context;
    private options;
    private stack;
    private locals;
    private pc;
    private instructionCount;
    private maxStackDepth;
    constructor(program: BytecodeProgram, context: ExecutionContext, options?: ExecutionOptions);
    /**
     * Execute the program
     */
    execute(): ExecutionResult;
    /**
     * Execute a single instruction
     */
    private executeInstruction;
    /**
     * Execute built-in function
     */
    private executeBuiltin;
    private push;
    private pop;
    private peek;
    private getConstantValue;
    private getConstantString;
    private resolveConstant;
    private equals;
}
/**
 * Execute a bytecode program
 */
export declare function executeProgram(program: BytecodeProgram, context: ExecutionContext, options?: ExecutionOptions): ExecutionResult;
/**
 * Create an execution context from an event payload
 */
export declare function createContextFromPayload(payload: Record<string, unknown>): ExecutionContext;
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