51 lines
1.8 KiB
JavaScript
51 lines
1.8 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.PromiseProvider = void 0;
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const error_1 = require("./error");
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/** @internal */
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const kPromise = Symbol('promise');
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const store = {
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[kPromise]: null
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};
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/**
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* Global promise store allowing user-provided promises
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* @deprecated Setting a custom promise library is deprecated the next major version will use the global Promise constructor only.
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* @public
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*/
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class PromiseProvider {
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/**
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* Validates the passed in promise library
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* @deprecated Setting a custom promise library is deprecated the next major version will use the global Promise constructor only.
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*/
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static validate(lib) {
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if (typeof lib !== 'function')
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throw new error_1.MongoInvalidArgumentError(`Promise must be a function, got ${lib}`);
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return !!lib;
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}
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/**
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* Sets the promise library
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* @deprecated Setting a custom promise library is deprecated the next major version will use the global Promise constructor only.
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*/
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static set(lib) {
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// eslint-disable-next-line no-restricted-syntax
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if (lib === null) {
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// Check explicitly against null since `.set()` (no args) should fall through to validate
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store[kPromise] = null;
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return;
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}
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if (!PromiseProvider.validate(lib)) {
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// validate
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return;
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}
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store[kPromise] = lib;
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}
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/**
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* Get the stored promise library, or resolves passed in
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* @deprecated Setting a custom promise library is deprecated the next major version will use the global Promise constructor only.
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*/
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static get() {
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return store[kPromise];
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}
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}
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exports.PromiseProvider = PromiseProvider;
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//# sourceMappingURL=promise_provider.js.map
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