import type { RAstNodeBase, Location, NoInfo } from '../model';
import { RNode } from '../model';
import { RType } from '../type';
import type { RSymbol } from './r-symbol';
import type { RArgument } from './r-argument';
export declare const EmptyArgument = "<>";
export type RFunctionArgument<Info = NoInfo> = RArgument<Info> | typeof EmptyArgument;
/**
 * Calls of functions like `a()` and `foo(42, "hello")`.
 * @see RUnnamedFunctionCall
 */
export interface RNamedFunctionCall<Info = NoInfo> extends RAstNodeBase<Info>, Location {
    readonly type: RType.FunctionCall;
    readonly named: true;
    functionName: RSymbol<Info>;
    /** arguments can be empty, for example when calling as `a(1, ,3)` */
    readonly arguments: readonly RFunctionArgument<Info>[];
}
/**
 * Direct calls of functions like `(function(x) { x })(3)`.
 * @see RNamedFunctionCall
 */
export interface RUnnamedFunctionCall<Info = NoInfo> extends RAstNodeBase<Info>, Location {
    readonly type: RType.FunctionCall;
    readonly named: false | undefined;
    calledFunction: RNode<Info>;
    /** marks function calls like `3 %xx% 4` which have been written in special infix notation; deprecated in v2 */
    infixSpecial?: boolean;
    /** arguments can be undefined, for example when calling as `a(1, ,3)` */
    readonly arguments: readonly RFunctionArgument<Info>[];
}
export type RFunctionCall<Info = NoInfo> = RNamedFunctionCall<Info> | RUnnamedFunctionCall<Info>;
/**
 * Helper for working with {@link RFunctionCall} AST nodes.
 */
export declare const RFunctionCall: {
    readonly name: "RFunctionCall";
    /**
     * Type guard for {@link RFunctionCall} nodes.
     */
    readonly is: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RFunctionCall<Info>;
    /**
     * Type guard for {@link RNamedFunctionCall} nodes.
     */
    readonly isNamed: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RNamedFunctionCall<Info>;
    /**
     * Type guard for {@link RUnnamedFunctionCall} nodes.
     */
    readonly isUnnamed: <Info = object>(this: void, node: RNode<Info> | undefined) => node is RUnnamedFunctionCall<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 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;
};