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https://github.com/brianc/node-postgres.git
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e85afe157f
* Make `native` non-enumerable Making it non-enumerable means less spurious "Cannot find module" errors in your logs when iterating over `pg` objects. `Object.defineProperty` has been available since Node 0.12. See https://github.com/brianc/node-postgres/issues/1894#issuecomment-543300178 * Add test for `native` enumeration Co-authored-by: Gabe Gorelick <gabegorelick@gmail.com>
72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
'use strict'
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/**
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* Copyright (c) 2010-2017 Brian Carlson (brian.m.carlson@gmail.com)
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* All rights reserved.
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*
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* This source code is licensed under the MIT license found in the
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* README.md file in the root directory of this source tree.
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*/
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var util = require('util')
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var Client = require('./client')
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var defaults = require('./defaults')
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var Connection = require('./connection')
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var Pool = require('pg-pool')
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const checkConstructor = require('./compat/check-constructor')
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const poolFactory = (Client) => {
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var BoundPool = function (options) {
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// eslint-disable-next-line no-eval
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checkConstructor('pg.Pool', 'PG-POOL-NEW', () => eval('new.target'))
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var config = Object.assign({ Client: Client }, options)
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return new Pool(config)
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}
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util.inherits(BoundPool, Pool)
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return BoundPool
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}
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var PG = function (clientConstructor) {
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this.defaults = defaults
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this.Client = clientConstructor
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this.Query = this.Client.Query
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this.Pool = poolFactory(this.Client)
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this._pools = []
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this.Connection = Connection
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this.types = require('pg-types')
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}
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if (typeof process.env.NODE_PG_FORCE_NATIVE !== 'undefined') {
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module.exports = new PG(require('./native'))
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} else {
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module.exports = new PG(Client)
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// lazy require native module...the native module may not have installed
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Object.defineProperty(module.exports, 'native', {
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configurable: true,
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enumerable: false,
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get() {
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var native = null
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try {
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native = new PG(require('./native'))
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} catch (err) {
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if (err.code !== 'MODULE_NOT_FOUND') {
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throw err
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}
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/* eslint-disable no-console */
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console.error(err.message)
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/* eslint-enable no-console */
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}
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// overwrite module.exports.native so that getter is never called again
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Object.defineProperty(module.exports, 'native', {
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value: native
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})
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return native
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}
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})
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}
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