import type { Field } from '../model/implementation/field.js';
import type { QueryNode } from '../query-tree/base.js';
import type { FieldContext } from './query-node-object-type/context.js';
export interface ProcessFieldResult {
    /**
     * If the RootFieldHelper can already resolve this fields, this will be populated with the value.
     */
    readonly resultNode: QueryNode | undefined;
    /**
     * Call this on collect fields that traverse root entities to store a reference to the root entity in the stack
     */
    registerRootNode(rootNode: QueryNode): void;
}
export declare class RootFieldHelper {
    private readonly hierarchyStackFramesBySelection;
    private readonly fieldsBySelection;
    /**
     * Should be called whenever a field is resolved. Will maintain a hierarchy structure, and may produce a value node
     */
    processField(field: Field, sourceNode: QueryNode, fieldContext: FieldContext): ProcessFieldResult;
    private tryResolveField;
    private getHierarchyStackFrame;
    private setHierarchyStackFrame;
    private getFieldAtSelection;
    private setFieldAtSelection;
}