import { TypeFlags } from '../type-flags';
import { IType, Type } from '../Type';
import { IContext, IValidationResult } from '../type-checker';
import { IStateTreeNode } from '../../core/NodeUtils';
import { ObjectNode } from '../../core/ObjectNode';
import { INode } from '../../core/interface';
export declare class StoredReference {
    readonly mode: 'identifier' | 'object';
    readonly value: any;
    constructor(mode: 'identifier' | 'object', value: any);
}
export declare abstract class BaseReferenceType<T> extends Type<string | number, T> {
    protected readonly targetType: IType<string | number, T>;
    readonly flags: TypeFlags;
    constructor(targetType: IType<string | number, T>);
    readonly valueType: IType<string | number, T>;
    describe(): string;
    isAssignableFrom(type: IType<any, any>): boolean;
    isValidSnapshot(value: any, context: IContext): IValidationResult;
}
export declare class IdentifierReferenceType<T> extends BaseReferenceType<T> {
    readonly shouldAttachNode: boolean;
    constructor(targetType: IType<any, T>);
    getValue(node: INode): any;
    getSnapshot(node: INode): any;
    instantiate(parent: ObjectNode | null, subpath: string, environment: any, snapshot: any): INode;
    reconcile(current: INode, newValue: any): INode;
}
export declare class CustomReferenceType<T> extends BaseReferenceType<T> {
    private readonly referOptions;
    readonly shouldAttachNode: boolean;
    constructor(targetType: IType<any, T>, referOptions: ReferenceOptions<T>);
    getValue(node: INode): T;
    getSnapshot(node: INode): any;
    instantiate(parent: ObjectNode | null, subpath: string, environment: any, snapshot: any): INode;
    reconcile(current: INode, snapshot: any): INode;
}
export declare type ReferenceOptions<T> = {
    get(identifier: string | number, parent: IStateTreeNode | null): T;
    set(value: T, parent: IStateTreeNode | null): string | number;
};
export declare function reference<T>(factory: IType<any, T>, options?: ReferenceOptions<T>): IType<string | number, T>;
export declare function isReferenceType(type: any): type is BaseReferenceType<any>;