import { type Token } from "antlr4ng";
import type { IActionSplitterListener } from "../parse/IActionSplitterListener.js";
import { Alternative } from "../tool/Alternative.js";
import { ActionAST } from "../tool/ast/ActionAST.js";
import { Grammar } from "../tool/Grammar.js";
import { Rule } from "../tool/Rule.js";
/** Find token and rule refs plus refs to them in actions; side-effect: update Alternatives. */
export declare class ActionSniffer implements IActionSplitterListener {
    g: Grammar;
    r: Rule;
    alt: Alternative;
    node: ActionAST;
    /** Token within action. */
    actionToken: Token;
    constructor(g: Grammar, r: Rule, alt: Alternative, node: ActionAST, actionToken: Token);
    examineAction(): void;
    processNested(actionToken: string): void;
    attr(expr: string, x: Token): void;
    qualifiedAttr(expr: string, x: Token, y: Token): void;
    setAttr(expr: string, x: Token, rhs: Token): void;
    setNonLocalAttr(expr: string, x: Token, y: Token, rhs: string): void;
    nonLocalAttr(): void;
    text(): void;
    trackRef(x: string): void;
}