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fix(commonjs): fix error when bundle contains require() of module with falsy __esModule export (#1850)
fix crash Co-authored-by: easrng <me@easrng.net>
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+99
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‎packages/commonjs/src/helpers.js‎

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@@ -42,7 +42,7 @@ export function getDefaultExportFromNamespaceIfNotNamed (n) {
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}
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export function getAugmentedNamespace(n) {
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if (n.__esModule) return n;
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;
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var f = n.default;
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if (typeof f == "function") {
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var a = function a () {

‎packages/commonjs/test/fixtures/function/esm-with-falsy-esmodule/_config.js‎

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@@ -0,0 +1,3 @@
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module.exports = {
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description: 'produces working code when esm module with falsy __esModule property set is being bundled'
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};

‎packages/commonjs/test/fixtures/function/esm-with-falsy-esmodule/esm.js‎

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@@ -0,0 +1,3 @@
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export const foo = 'foo';
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export let __esModule;

‎packages/commonjs/test/fixtures/function/esm-with-falsy-esmodule/main.js‎

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@@ -0,0 +1,4 @@
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const esm = require('./esm.js');
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t.is(esm.foo, 'foo');
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t.is(esm.__esModule, undefined);

‎packages/commonjs/test/snapshots/function.js.md‎

Lines changed: 85 additions & 16 deletions
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@@ -4210,7 +4210,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -4308,7 +4308,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -4400,7 +4400,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -4536,7 +4536,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -4640,7 +4640,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -4697,6 +4697,75 @@ Generated by [AVA](https://avajs.dev).
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`,
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}
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## esm-with-falsy-esmodule
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> Snapshot 1
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{
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'main.js': `'use strict';␊
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␊
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function getDefaultExportFromCjs (x) {␊
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return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;␊
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
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if (this instanceof a) {␊
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return Reflect.construct(f, arguments, this.constructor);␊
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}␊
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return f.apply(this, arguments);␊
4720+
};␊
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a.prototype = f.prototype;␊
4722+
} else a = {};␊
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Object.defineProperty(a, '__esModule', {value: true});␊
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Object.keys(n).forEach(function (k) {␊
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var d = Object.getOwnPropertyDescriptor(n, k);␊
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Object.defineProperty(a, k, d.get ? d : {␊
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enumerable: true,␊
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get: function () {␊
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return n[k];␊
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}␊
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});␊
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});␊
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return a;␊
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}␊
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␊
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var main$1 = {};␊
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␊
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const foo = 'foo';␊
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␊
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let __esModule;␊
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␊
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var esm = /*#__PURE__*/Object.freeze({␊
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__proto__: null,␊
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__esModule: __esModule,␊
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foo: foo␊
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});␊
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␊
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var require$$0 = /*@__PURE__*/getAugmentedNamespace(esm);␊
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␊
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var hasRequiredMain;␊
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␊
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function requireMain () {␊
4753+
if (hasRequiredMain) return main$1;␊
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hasRequiredMain = 1;␊
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const esm = require$$0;␊
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␊
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t.is(esm.foo, 'foo');␊
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t.is(esm.__esModule, undefined);␊
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return main$1;␊
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}␊
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␊
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var mainExports = requireMain();␊
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var main = /*@__PURE__*/getDefaultExportFromCjs(mainExports);␊
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␊
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module.exports = main;␊
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`,
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}
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47004769
## export-default-from
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> Snapshot 1
@@ -4909,7 +4978,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -5198,7 +5267,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -5321,7 +5390,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -5551,7 +5620,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -7466,7 +7535,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -8212,7 +8281,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
@@ -8275,7 +8344,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
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'main.js': `'use strict';␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
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'main.js': `'use strict';␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊

‎packages/commonjs/test/snapshots/function.js.snap‎

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‎packages/commonjs/test/snapshots/test.js.md‎

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@@ -43,7 +43,7 @@ Generated by [AVA](https://avajs.dev).
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
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}␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊
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`'use strict';␊
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␊
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function getAugmentedNamespace(n) {␊
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if (n.__esModule) return n;␊
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if (Object.prototype.hasOwnProperty.call(n, '__esModule')) return n;␊
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var f = n.default;␊
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if (typeof f == "function") {␊
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var a = function a () {␊

‎packages/commonjs/test/snapshots/test.js.snap‎

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