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fix(commonjs): produce code which works when __esModule is already defined #1379

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merged 1 commit into from Dec 17, 2022
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fix(commonjs): produce code which works when __esModule is already defined #1379

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1 change: 1 addition & 0 deletions packages/commonjs/src/helpers.js
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Expand Up @@ -35,6 +35,7 @@ export function getDefaultExportFromNamespaceIfNotNamed (n) {
}

export function getAugmentedNamespace(n) {
if (n.__esModule) return n;
var f = n.default;
if (typeof f == "function") {
var a = function a () {
Expand Down
3 changes: 3 additions & 0 deletions packages/commonjs/test/fixtures/function/esm-with-esmodule/_config.js
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@@ -0,0 +1,3 @@
module.exports = {
description: 'produces working code when esm module with __esModule property set is being bundled'
};
3 changes: 3 additions & 0 deletions packages/commonjs/test/fixtures/function/esm-with-esmodule/esm.js
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@@ -0,0 +1,3 @@
export const foo = 'foo';

export const __esModule = true;
4 changes: 4 additions & 0 deletions packages/commonjs/test/fixtures/function/esm-with-esmodule/main.js
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@@ -0,0 +1,4 @@
const esm = require('./esm.js');

t.is(esm.foo, 'foo');
t.is(esm.__esModule, true);
6 changes: 6 additions & 0 deletions packages/commonjs/test/fixtures/function/transform-mixed-modules-esmodule/_config.js
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@@ -0,0 +1,6 @@
module.exports = {
description: 'transforms mixed modules when CommonJS module contains __esModule property',
pluginOptions: {
transformMixedEsModules: true
}
};
3 changes: 3 additions & 0 deletions packages/commonjs/test/fixtures/function/transform-mixed-modules-esmodule/dep.js
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@@ -0,0 +1,3 @@
const other = require('./other.js');

export { other };
6 changes: 6 additions & 0 deletions packages/commonjs/test/fixtures/function/transform-mixed-modules-esmodule/main.js
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@@ -0,0 +1,6 @@
import { other } from './dep.js';

const dep = require('./dep.js');

t.is(other, 'other');
t.deepEqual(dep, { other: 'other' });
4 changes: 4 additions & 0 deletions packages/commonjs/test/fixtures/function/transform-mixed-modules-esmodule/other.js
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@@ -0,0 +1,4 @@
Object.defineProperty(exports, '__esModule', {
value: true
});
module.exports = 'other';
133 changes: 133 additions & 0 deletions packages/commonjs/test/snapshots/function.js.md
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Expand Up @@ -3491,6 +3491,7 @@ Generated by [AVA](https://avajs.dev).
var externalEsmDefault__namespace = /*#__PURE__*/_interopNamespaceCompat(externalEsmDefault);␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -3577,6 +3578,7 @@ Generated by [AVA](https://avajs.dev).
var externalEsmDefault__namespace = /*#__PURE__*/_interopNamespaceCompat(externalEsmDefault);␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -3657,6 +3659,7 @@ Generated by [AVA](https://avajs.dev).
var externalEsmDefault__namespace = /*#__PURE__*/_interopNamespaceCompat(externalEsmDefault);␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -3750,6 +3753,7 @@ Generated by [AVA](https://avajs.dev).
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -3834,6 +3838,64 @@ Generated by [AVA](https://avajs.dev).
`,
}

## esm-with-esmodule

> Snapshot 1

{
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
if (this instanceof a) {␊
var args = [null];␊
args.push.apply(args, arguments);␊
var Ctor = Function.bind.apply(f, args);␊
return new Ctor();␊
}␊
return f.apply(this, arguments);␊
};␊
a.prototype = f.prototype;␊
} else a = {};␊
Object.defineProperty(a, '__esModule', {value: true});␊
Object.keys(n).forEach(function (k) {␊
var d = Object.getOwnPropertyDescriptor(n, k);␊
Object.defineProperty(a, k, d.get ? d : {␊
enumerable: true,␊
get: function () {␊
return n[k];␊
}␊
});␊
});␊
return a;␊
}␊
␊
var main = {};␊
␊
const foo = 'foo';␊
␊
const __esModule = true;␊
␊
var esm$1 = /*#__PURE__*/Object.freeze({␊
__proto__: null,␊
foo: foo,␊
__esModule: __esModule␊
});␊
␊
var require$$0 = /*@__PURE__*/getAugmentedNamespace(esm$1);␊
␊
const esm = require$$0;␊
␊
t.is(esm.foo, 'foo');␊
t.is(esm.__esModule, true);␊
␊
module.exports = main;␊
`,
}

## export-default-from

> Snapshot 1
Expand Down Expand Up @@ -3957,6 +4019,7 @@ Generated by [AVA](https://avajs.dev).
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -4187,6 +4250,7 @@ Generated by [AVA](https://avajs.dev).
var externalEsmDefault__namespace = /*#__PURE__*/_interopNamespaceCompat(externalEsmDefault);␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -4289,6 +4353,7 @@ Generated by [AVA](https://avajs.dev).
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -4482,6 +4547,7 @@ Generated by [AVA](https://avajs.dev).
}␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -4760,6 +4826,7 @@ Generated by [AVA](https://avajs.dev).
var externalEsmDefault__namespace = /*#__PURE__*/_interopNamespaceCompat(externalEsmDefault);␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -4854,6 +4921,7 @@ Generated by [AVA](https://avajs.dev).
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -6163,6 +6231,7 @@ Generated by [AVA](https://avajs.dev).
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -6214,6 +6283,7 @@ Generated by [AVA](https://avajs.dev).
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -7167,6 +7237,7 @@ Generated by [AVA](https://avajs.dev).
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -7211,6 +7282,68 @@ Generated by [AVA](https://avajs.dev).
`,
}

## transform-mixed-modules-esmodule

> Snapshot 1

{
'main.js': `'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
if (this instanceof a) {␊
var args = [null];␊
args.push.apply(args, arguments);␊
var Ctor = Function.bind.apply(f, args);␊
return new Ctor();␊
}␊
return f.apply(this, arguments);␊
};␊
a.prototype = f.prototype;␊
} else a = {};␊
Object.defineProperty(a, '__esModule', {value: true});␊
Object.keys(n).forEach(function (k) {␊
var d = Object.getOwnPropertyDescriptor(n, k);␊
Object.defineProperty(a, k, d.get ? d : {␊
enumerable: true,␊
get: function () {␊
return n[k];␊
}␊
});␊
});␊
return a;␊
}␊
␊
var otherExports = {};␊
var other$1 = {␊
get exports(){ return otherExports; },␊
set exports(v){ otherExports = v; },␊
};␊
␊
Object.defineProperty(otherExports, '__esModule', {␊
value: true␊
});␊
other$1.exports = 'other';␊
␊
const other = otherExports;␊
␊
var dep$1 = /*#__PURE__*/Object.freeze({␊
__proto__: null,␊
other: other␊
});␊
␊
var require$$0 = /*@__PURE__*/getAugmentedNamespace(dep$1);␊
␊
const dep = require$$0;␊
␊
t.is(other, 'other');␊
t.deepEqual(dep, { other: 'other' });␊
`,
}

## transpiled-esm-default

> Snapshot 1
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3 changes: 3 additions & 0 deletions packages/commonjs/test/snapshots/test.js.md
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Expand Up @@ -42,6 +42,7 @@ Generated by [AVA](https://avajs.dev).
}␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -199,6 +200,7 @@ Generated by [AVA](https://avajs.dev).
`'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down Expand Up @@ -279,6 +281,7 @@ Generated by [AVA](https://avajs.dev).
`'use strict';␊
␊
function getAugmentedNamespace(n) {␊
if (n.__esModule) return n;␊
var f = n.default;␊
if (typeof f == "function") {␊
var a = function a () {␊
Expand Down
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