import { OperationDefinitionNode, GraphQLSchema } from 'graphql';
import { QueryTreeHandler, QueryNodePurgeHandler } from './query-tree-handler';
import { QueryTreeNode } from './query-tree-node';
import { Query } from './query';
import * as rgraphql from 'rgraphql';
export declare class QueryTree {
    private schema;
    private nextID;
    private nextQueryID;
    private attachedQueries;
    private root;
    private varStore;
    private pendingVariables;
    private handlers;
    private qtNodePurgeHandlers;
    constructor(schema: GraphQLSchema, handler?: QueryTreeHandler);
    getGraphQLSchema(): GraphQLSchema;
    getRoot(): QueryTreeNode;
    buildQuery(ast: OperationDefinitionNode, variables?: {
        [key: string]: any;
    } | null): Query;
    attach(query: Query): void;
    detach(query: Query): void;
    attachHandler(handler: QueryTreeHandler): void;
    removeHandler(handler: QueryTreeHandler): void;
    attachQtNodePurgeHandler(handler: QueryNodePurgeHandler): void;
    detachQtNodePurgeHandler(handler: QueryNodePurgeHandler): void;
    buildProto(): rgraphql.RGQLQueryTreeNode;
    gcSweep(): void;
    private emitToHandlers;
    private emitToPurgeHandlers;
    private handleNewVariable;
}