Handle default exporting global variables

package.json

@@ -71,7 +71,7 @@
     "@rollup/plugin-node-resolve": "^7.1.3",
     "@rollup/plugin-replace": "^2.3.2",
     "@types/micromatch": "^4.0.1",
-    "@types/node": "^13.13.2",
+    "@types/node": "^13.13.4",
     "@types/require-relative": "^0.8.0",
     "@types/signal-exit": "^3.0.0",
     "@types/yargs-parser": "^15.0.0",
@@ -83,7 +83,7 @@
     "acorn-static-class-features": "^0.2.1",
     "acorn-walk": "^7.1.1",
     "buble": "^0.20.0",
-    "chokidar": "^3.3.1",
+    "chokidar": "^3.4.0",
     "codecov": "^3.6.5",
     "colorette": "^1.1.0",
     "core-js": "^3.6.5",
@@ -98,20 +98,20 @@
     "hash.js": "^1.1.7",
     "husky": "^4.2.5",
     "is-reference": "^1.1.4",
-    "lint-staged": "^10.1.7",
+    "lint-staged": "^10.2.1",
     "locate-character": "^2.0.5",
     "magic-string": "^0.25.7",
     "markdownlint-cli": "^0.22.0",
     "micromatch": "^4.0.2",
-    "mocha": "^7.1.1",
+    "mocha": "^7.1.2",
     "node-fetch": "^2.6.0",
     "nyc": "^15.0.1",
     "prettier": "^2.0.5",
     "pretty-bytes": "^5.3.0",
-    "pretty-ms": "^6.0.1",
+    "pretty-ms": "^7.0.0",
     "require-relative": "^0.8.7",
     "requirejs": "^2.3.6",
-    "rollup": "^2.7.1",
+    "rollup": "^2.7.5",
     "rollup-plugin-license": "^2.0.0",
     "rollup-plugin-string": "^3.0.0",
     "rollup-plugin-terser": "^5.3.0",
@@ -122,12 +122,12 @@
     "shx": "^0.3.2",
     "signal-exit": "^3.0.3",
     "source-map": "^0.7.3",
-    "source-map-support": "^0.5.18",
+    "source-map-support": "^0.5.19",
     "sourcemap-codec": "^1.4.8",
     "systemjs": "^6.3.1",
-    "terser": "^4.6.11",
+    "terser": "^4.6.13",
     "tslib": "^1.11.1",
-    "tslint": "^6.1.1",
+    "tslint": "^6.1.2",
     "typescript": "^3.8.3",
     "url-parse": "^1.4.7",
     "yargs-parser": "^18.1.3"

scripts/test-package.js

@@ -2,7 +2,8 @@ const pkg = require('../package.json');
 
 function checkChokidar() {
 	const chokidarPkg = require('../node_modules/chokidar/package.json');
-	const chokidarFsevents = chokidarPkg.dependencies.fsevents;
+	const chokidarFsevents =
+		chokidarPkg.dependencies.fsevents || chokidarPkg.optionalDependencies.fsevents;
 	if (!chokidarFsevents) return;
 	const pkgFsevents = pkg.optionalDependencies.fsevents;
 	if (chokidarFsevents !== pkgFsevents) {

src/Chunk.ts

@@ -1010,7 +1010,7 @@ export default class Chunk {
 			} else if (variable instanceof ExportDefaultVariable) {
 				variable = variable.getOriginalVariable();
 			}
-			if ((variable.module as Module).chunk !== this) {
+			if (variable.module && (variable.module as Module).chunk !== this) {
 				this.imports.add(variable);
 				if (
 					!(variable instanceof NamespaceVariable && this.graph.preserveModules) &&

src/Module.ts

@@ -345,7 +345,9 @@ export default class Module {
 			} else if (variable instanceof ExportDefaultVariable) {
 				variable = variable.getOriginalVariable();
 			}
-			relevantDependencies.add(variable.module!);
+			if (variable.module) {
+				relevantDependencies.add(variable.module);
+			}
 		}
 		if (this.isEntryPoint || this.dynamicallyImportedBy.length > 0 || this.graph.preserveModules) {
 			for (const exportName of [...this.getReexports(), ...this.getExports()]) {
@@ -355,7 +357,9 @@ export default class Module {
 				} else if (variable instanceof ExportDefaultVariable) {
 					variable = variable.getOriginalVariable();
 				}
-				relevantDependencies.add(variable.module!);
+				if (variable.module) {
+					relevantDependencies.add(variable.module);
+				}
 			}
 		}
 		if (this.graph.treeshakingOptions) {

test/chunking-form/samples/export-default-global/_config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'handles default exporting global variables'
+};

test/chunking-form/samples/export-default-global/_expected/amd/main.js

@@ -0,0 +1,7 @@
+define(function () { 'use strict';
+
+	console.log(global);
+
+	return global;
+
+});

test/chunking-form/samples/export-default-global/_expected/cjs/main.js

@@ -0,0 +1,5 @@
+'use strict';
+
+console.log(global);
+
+module.exports = global;

test/chunking-form/samples/export-default-global/_expected/es/main.js

@@ -0,0 +1,3 @@
+console.log(global);
+
+export default global;

test/chunking-form/samples/export-default-global/_expected/system/main.js

@@ -0,0 +1,10 @@
+System.register([], function (exports) {
+	'use strict';
+	return {
+		execute: function () {
+
+			console.log(global);
+
+		}
+	};
+});

test/chunking-form/samples/export-default-global/lib.js

@@ -0,0 +1 @@
+export default global;

test/chunking-form/samples/export-default-global/main.js

@@ -0,0 +1,4 @@
+import value from './lib.js';
+
+console.log(value);
+export default value;