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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.globalValue = void 0;
var version = _interopRequireWildcard(require("./internal/version.js"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
/**
* The `GlobalValue` module ensures that a single instance of a value is created globally,
* even when modules are imported multiple times (e.g., due to mixing CommonJS and ESM builds)
* or during hot-reloading in development environments like Next.js or Remix.
*
* It achieves this by using a versioned global store, identified by a unique `Symbol` tied to
* the current version of the `effect` library. The store holds values that are keyed by an identifier,
* allowing the reuse of previously computed instances across imports or reloads.
*
* This pattern is particularly useful in scenarios where frequent reloading can cause services or
* single-instance objects to be recreated unnecessarily, such as in development environments with hot-reloading.
*
* @since 2.0.0
*/
const globalStoreId = `effect/GlobalValue/globalStoreId/${/*#__PURE__*/version.getCurrentVersion()}`;
let globalStore;
/**
* Retrieves or computes a global value associated with the given `id`. If the value for this `id`
* has already been computed, it will be returned from the global store. If it does not exist yet,
* the provided `compute` function will be executed to compute the value, store it, and then return it.
*
* This ensures that even in cases where the module is imported multiple times (e.g., in mixed environments
* like CommonJS and ESM, or during hot-reloading in development), the value is computed only once and reused
* thereafter.
*
* @example
* ```ts
* import { globalValue } from "effect/GlobalValue"
*
* // This cache will persist as long as the module is running,
* // even if reloaded or imported elsewhere
* const myCache = globalValue(
* Symbol.for("myCache"),
* () => new WeakMap<object, number>()
* )
* ```
*
* @since 2.0.0
*/
const globalValue = (id, compute) => {
if (!globalStore) {
// @ts-expect-error
globalThis[globalStoreId] ??= new Map();
// @ts-expect-error
globalStore = globalThis[globalStoreId];
}
if (!globalStore.has(id)) {
globalStore.set(id, compute());
}
return globalStore.get(id);
};
exports.globalValue = globalValue;
//# sourceMappingURL=GlobalValue.js.map