import type { RAstNodeBase, Location, NoInfo } from '../model';
import { RNode } from '../model';
import { RType } from '../type';
import type { RSymbol } from './r-symbol';
import type { BrandedIdentifier } from '../../../../../dataflow/environments/identifier';
/**
 * Represents a parameter of a function definition in R.
 */
export interface RParameter<Info = NoInfo> extends RAstNodeBase<Info>, Location {
    readonly type: RType.Parameter;
    name: RSymbol<Info, BrandedIdentifier>;
    /** is it the special ... parameter? */
    special: boolean;
    defaultValue: RNode<Info> | undefined;
}
/**
 * Helper for working with {@link RParameter} AST nodes.
 */
export declare const RParameter: {
    readonly name: "RParameter";
    /**
     * Type guard for {@link RParameter} nodes.
     * @see {@link RParameter.isDotDotDotDot} - to check whether a parameter is the special `...` parameter
     */
    readonly is: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RParameter<Info>;
    /**
     * Type guard for the special `...` parameter.
     * @see {@link RParameter.is} - to check whether a node is a parameter at all
     */
    readonly isDotDotDotDot: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RParameter<Info>;
    readonly getLocation: (this: void, node: RNode) => import("../../../../../util/range").SourceLocation | undefined;
    readonly getId: (this: void, node: RNode<import("../processing/decorate").ParentInformation>) => import("../processing/node-id").NodeId;
    readonly getType: (this: void, node: RNode) => RType;
    readonly visitAst: <OtherInfo = object>(this: void, nodes: import("../../../../../abstract-interpretation/normalized-ast-fold").SingleOrArrayOrNothing<RNode<OtherInfo>>, onVisit?: import("../processing/visitor").OnEnter<OtherInfo>, onExit?: import("../processing/visitor").OnExit<OtherInfo>) => void;
    readonly collectAllIds: <OtherInfo>(this: void, nodes: import("../../../../../abstract-interpretation/normalized-ast-fold").SingleOrArrayOrNothing<RNode<OtherInfo & import("../processing/decorate").ParentInformation>>) => Set<import("../processing/node-id").NodeId>;
    readonly directChildren: <OtherInfo>(this: void, node: RNode<OtherInfo>) => readonly (RNode<OtherInfo> | typeof import("./r-function-call").EmptyArgument)[];
    readonly directParent: <OtherInfo>(this: void, node: RNode<OtherInfo & import("../processing/decorate").ParentInformation>, idMap: Map<import("../processing/node-id").NodeId, RNode<OtherInfo & import("../processing/decorate").ParentInformation>>) => RNode<OtherInfo & import("../processing/decorate").ParentInformation> | undefined;
    readonly iterateParents: <OtherInfo>(this: void, node: RNode<OtherInfo & import("../processing/decorate").ParentInformation> | undefined, idMap: Map<import("../processing/node-id").NodeId, RNode<OtherInfo & import("../processing/decorate").ParentInformation>>) => Generator<RNode<OtherInfo & import("../processing/decorate").ParentInformation>>;
    readonly depth: (this: void, node: RNode<import("../processing/decorate").ParentInformation>, idMap: Map<import("../processing/node-id").NodeId, RNode<import("../processing/decorate").ParentInformation>>) => number;
    readonly collectAllIdsWithStop: <OtherInfo>(this: void, nodes: import("../../../../../abstract-interpretation/normalized-ast-fold").SingleOrArrayOrNothing<RNode<OtherInfo & import("../processing/decorate").ParentInformation>>, stop: (node: RNode<OtherInfo & import("../processing/decorate").ParentInformation>) => boolean) => Set<import("../processing/node-id").NodeId>;
    readonly lexeme: <R extends RNode<import("../processing/decorate").ParentInformation>>(this: void, node: R | undefined) => R extends {
        lexeme: string;
    } ? string : string | undefined;
    readonly documentation: typeof import("../../../../roxygen2/documentation-provider").getDocumentationOf;
};