import type { FunctionTable, NodeExpr, NodeInput } from './AST';
import { MultiArray } from './AST';
/**
 * Minimal scope contract required by introspection helpers.
 */
type IntrospectionScope = {
    /**
     * Functions visible from the inspected workspace.
     */
    functionTable: FunctionTable;
};
/**
 * Minimal call-frame contract required by `dbstack` and `localfunctions`.
 */
type IntrospectionFrame = {
    /**
     * Workspace associated with the frame.
     */
    scope: IntrospectionScope;
    /**
     * Callable metadata, when the frame represents a function call.
     */
    func?: {
        type: string;
        node?: {
            id?: string;
        };
    };
    /**
     * AST node that originated the call, used for line information.
     */
    callSite?: NodeExpr;
    /**
     * Explicit frame display name, if one was supplied by the caller.
     */
    name?: string;
    /**
     * Caller frame.
     */
    parentFrame?: IntrospectionFrame;
};
/**
 * Syntax-error callback supplied by the interpreter.
 */
type ThrowSyntaxError = (message: string) => never;
/**
 * Implements stack and local-function introspection built-ins.
 *
 * The browser runtime has no real MATLAB/Octave file stack, so file names are
 * intentionally empty. Function names, line numbers, and local function handles
 * are still derived from active call frames and scopes.
 */
declare class FunctionIntrospection {
    /**
     * Return handles for user-defined functions visible in the nearest function scope.
     */
    static localFunctionHandles(currentFrame: IntrospectionFrame | undefined, currentScope: IntrospectionScope): MultiArray;
    /**
     * Compute the display name for a stack frame.
     */
    static frameName(frame: IntrospectionFrame): string;
    /**
     * Build the structure array returned by `dbstack`.
     */
    static dbstackResult(args: NodeInput[], callStack: IntrospectionFrame[], throwSyntaxError: ThrowSyntaxError): MultiArray;
    /**
     * Find the nearest user-defined function frame.
     */
    private static nearestFunctionFrame;
    /**
     * Parse `dbstack` skip/options arguments.
     */
    private static dbstackSkip;
}
export type { IntrospectionFrame, IntrospectionScope };
export { FunctionIntrospection };
declare const _default: {
    FunctionIntrospection: typeof FunctionIntrospection;
};
export default _default;