@struktoai/mirage-core/dist/core/hierarchy/bind.js

A Unified Virtual Filesystem For AI Agents

// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
/**
 * Cache one built value per accessor, for config-shaped route tables.
 *
 * Most backends have one tree shape, so their scope table and factories bind
 * at module import. A backend whose tree is a function of mount config
 * (lancedb's `groupBy` depth and leaf set, qdrant's likewise) builds them per
 * mount instead: the accessor carries the config, so the accessor is the
 * cache key, and the cache is weak so a dropped mount takes its routes with
 * it. The build runs once per accessor; listers, guards and readers stay
 * module-level functions that read `accessor.config` at call time, so tests
 * keep patching client functions the same way they do for import-bound
 * backends.
 */
export function perAccessor(build) {
    const cache = new WeakMap();
    return function cached(accessor) {
        const got = cache.get(accessor);
        if (got !== undefined)
            return got;
        const made = build(accessor);
        cache.set(accessor, made);
        return made;
    };
}
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