import { type EntityHandle, type World } from '@forgeax/engine-ecs';
import type { SceneErrorCode, SceneErrorDetail } from '../errors';
export interface SceneHierarchyDiagnostic {
    readonly code: SceneErrorCode;
    readonly expected: string;
    readonly hint: string;
    readonly detail: SceneErrorDetail;
}
export interface SceneHierarchySnapshot {
    readonly parentOf: ReadonlyMap<EntityHandle, EntityHandle>;
    readonly diagnostics: readonly SceneHierarchyDiagnostic[];
    getParent(entity: EntityHandle): EntityHandle | undefined;
}
/** Build the only World-local projection of ChildOf parent facts. */
export declare function projectHierarchy(world: World): SceneHierarchySnapshot;
//# sourceMappingURL=hierarchy-projection.d.ts.map