import type { RAstNodeBase, Location, NoInfo } from '../model';
import { RNode } from '../model';
import { RType } from '../type';
import type { RArgument, RUnnamedArgument } from './r-argument';
import type { EmptyArgument } from './r-function-call';
/**
 * Represents an R Indexing operation with `$`, `@`, `[[`, or `[`.
 */
interface RAccessBase<Info = NoInfo> extends RAstNodeBase<Info>, Location {
    readonly type: RType.Access;
    /** the accessed container/variable/expression */
    accessed: RNode<Info>;
    operator: '[' | '[[' | '$' | '@';
}
/**
 * Represents an R named access operation with `$` or `@`, the field is a string.
 */
export interface RNamedAccess<Info = NoInfo> extends RAccessBase<Info> {
    operator: '$' | '@';
    access: [RUnnamedArgument<Info>];
}
/** access can be a number, a variable or an expression that resolves to one, a filter etc. */
export interface RIndexAccess<Info = NoInfo> extends RAccessBase<Info> {
    operator: '[' | '[[';
    /** is null if the access is empty, e.g. `a[,3]` */
    access: readonly (RArgument<Info> | typeof EmptyArgument)[];
}
export type RAccess<Info = NoInfo> = RNamedAccess<Info> | RIndexAccess<Info>;
/**
 * Helper for working with {@link RAccess} AST nodes.
 */
export declare const RAccess: {
    readonly name: "RAccess";
    /**
     * Type guard for {@link RAccess} nodes.
     */
    readonly is: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RAccess<Info>;
    /**
     * Type guard for {@link RNamedAccess} nodes.
     */
    readonly isNamed: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RNamedAccess<Info>;
    /**
     * Type guard for {@link RIndexAccess} nodes.
     */
    readonly isIndex: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RIndexAccess<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("../model").SingleOrArrayOrNothing<RNode<OtherInfo>>, onVisit?: import("../processing/visitor").OnEnter<OtherInfo>, onExit?: import("../processing/visitor").OnExit<OtherInfo>) => void;
    readonly collectAllIds: <OtherInfo>(this: void, nodes: import("../model").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 EmptyArgument)[];
    readonly directParent: <OtherInfo>(this: void, node: RNode<OtherInfo & import("../processing/decorate").ParentInformation>, idMap: import("../processing/decorate").AstIdMap<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: import("../processing/decorate").AstIdMap<OtherInfo & import("../processing/decorate").ParentInformation>) => Generator<RNode<OtherInfo & import("../processing/decorate").ParentInformation>>;
    readonly depth: (this: void, node: RNode<import("../processing/decorate").ParentInformation>, idMap: import("../processing/decorate").AstIdMap<import("../processing/decorate").ParentInformation>) => number;
    readonly collectAllIdsWithStop: <OtherInfo>(this: void, nodes: import("../model").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;
};
export {};