From 3d053d93956c8c31bc3f4b6ac56593b923e976d3 Mon Sep 17 00:00:00 2001
From: Milan Hauth <milahu@gmail.com>
Date: Sat, 26 Sep 2020 12:21:02 +0200
Subject: [PATCH] support default + named import

---
 test/setup.js                                 | 22 ++++++++++++-------
 .../samples/sourcemap-sources/_config.js      | 11 +++-------
 2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/test/setup.js b/test/setup.js
index 7406a07dd9..14e0366387 100644
--- a/test/setup.js
+++ b/test/setup.js
@@ -8,22 +8,28 @@ require.extensions['.js'] = function(module, filename) {
 	const exports = [];
 
 	let code = fs.readFileSync(filename, 'utf-8')
-		.replace(/^import \* as (\w+) from ['"]([^'"]+)['"];?/gm, 'var $1 = require("$2");')
-		.replace(/^import (\w+) from ['"]([^'"]+)['"];?/gm, 'var {default: $1} = require("$2");')
-		.replace(/^import {([^}]+)} from ['"](.+)['"];?/gm, 'var {$1} = require("$2");')
-		.replace(/^export default /gm, 'exports.default = ')
-		.replace(/^export (const|let|var|class|function) (\w+)/gm, (match, type, name) => {
+		.replace(/^import\s+\*\s+as\s+(\w+)\s+from\s+(['"])(.+?)\2;?/gm, 'var $1 = require($2$3$2);')
+		.replace(/^import\s+(\w+)\s+from\s+(['"])(.+?)\2;?/gm, 'var {default: $1} = require($2$3$2);')
+		.replace(/^import\s+(?:(\w+)\s*,\s*)?{([^}]+)}(?:\s*,\s*(\w+))?\s+from\s+(['"])(.+?)\4;?/gm,
+			(match, default_name_1, names, default_name_2, quote, source) => {
+			names = names.replace(/\s+as\s+/g, ': ');
+			let default_name = default_name_1 || default_name_2;
+			default_name = default_name ? `default: ${default_name}, ` : '';
+			return `var {${default_name}${names}} = require(${quote}${source}${quote});`;
+		})
+		.replace(/^export\s+default\s+/gm, 'exports.default = ')
+		.replace(/^export\s+(const|let|var|class|function)\s+(\w+)/gm, (match, type, name) => {
 			exports.push(name);
 			return `${type} ${name}`;
 		})
-		.replace(/^export \{([^}]+)\}(?: from ['"]([^'"]+)['"];?)?/gm, (match, names, source) => {
+		.replace(/^export\s+\{([^}]+)\}(?:\s+from\s+(['"])(.+?)\2;?)?/gm, (match, names, quote, source) => {
 			names.split(',').filter(Boolean).forEach(name => {
 				exports.push(name);
 			});
 
-			return source ? `const { ${names} } = require("${source}");` : '';
+			return source ? `const { ${names} } = require(${quote}${source}${quote});` : '';
 		})
-		.replace(/^export function (\w+)/gm, 'exports.$1 = function $1');
+		.replace(/^export\s+function\s+(\w+)/gm, 'exports.$1 = function $1');
 
 	exports.forEach(name => {
 		code += `\nexports.${name} = ${name};`;
diff --git a/test/sourcemaps/samples/sourcemap-sources/_config.js b/test/sourcemaps/samples/sourcemap-sources/_config.js
index 4fb923e1fc..0c413c9300 100644
--- a/test/sourcemaps/samples/sourcemap-sources/_config.js
+++ b/test/sourcemaps/samples/sourcemap-sources/_config.js
@@ -1,9 +1,4 @@
-import MagicString from 'magic-string';
-// eslint warning: import/no-named-as-default-member
-
-//import MagicString, { Bundle } from 'magic-string';
-// TODO why does this break mocha?
-// SyntaxError: Cannot use import statement outside a module
+import MagicString, { Bundle } from 'magic-string';
 
 function add(bundle, filename, source) {
 	bundle.addSource({
@@ -27,7 +22,7 @@ export default {
 	preprocess: [
 		{
 			script: ({ content, filename }) => {
-				const bundle = new MagicString.Bundle();
+				const bundle = new Bundle();
 
 				add(bundle, filename, content);
 				add(bundle, 'foo.js', 'var answer = 42;');
@@ -38,7 +33,7 @@ export default {
 		},
 		{
 			script: ({ content, filename }) => {
-				const bundle = new MagicString.Bundle();
+				const bundle = new Bundle();
 
 				add(bundle, filename, content);
 				add(bundle, 'foo2.js', 'var answer2 = 84;');