// =============================================================================
// Copyright (c) 2025 - 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Continuation frames for depth-bounded JSON equality traversal.
use Map;
use Value;
use Iter as MapIter;
/// Retains only the active iterator for each enclosing container.
pub