Merge pull request #639 from Victorystick/fix-no-treeshake-vars

Fix a bug with no-treeshake

src/Module.js

@@ -611,7 +611,7 @@ export default class Module {
 	run ( treeshake ) {
 		if ( !treeshake ) {
 			this.statements.forEach( statement => {
-				if ( statement.isImportDeclaration ) return;
+				if ( statement.isImportDeclaration || ( statement.isExportDeclaration && statement.node.isSynthetic ) ) return;
 
 				statement.mark();
 			});

test/form/no-treeshake/_expected/amd.js

@@ -14,7 +14,12 @@ define(['exports', 'external'], function (exports, external) { 'use strict';
 		return 13 + external.value;
 	}
 
+	var create = Object.create;
+	var getPrototypeOf = Object.getPrototypeOf;
+
 	exports.baz = baz;
+	exports.create = create;
+	exports.getPrototypeOf = getPrototypeOf;
 	exports.strange = quux;
 
 });

test/form/no-treeshake/_expected/cjs.js

@@ -16,5 +16,10 @@ function baz () {
 	return 13 + external.value;
 }
 
+var create = Object.create;
+var getPrototypeOf = Object.getPrototypeOf;
+
 exports.baz = baz;
+exports.create = create;
+exports.getPrototypeOf = getPrototypeOf;
 exports.strange = quux;

test/form/no-treeshake/_expected/es6.js

@@ -14,4 +14,7 @@ function baz () {
 	return 13 + external.value;
 }
 
-export { baz, quux as strange };
+var create = Object.create;
+var getPrototypeOf = Object.getPrototypeOf;
+
+export { baz, create, getPrototypeOf, quux as strange };

test/form/no-treeshake/_expected/iife.js

@@ -15,7 +15,12 @@
 		return 13 + external.value;
 	}
 
+	var create = Object.create;
+	var getPrototypeOf = Object.getPrototypeOf;
+
 	exports.baz = baz;
+	exports.create = create;
+	exports.getPrototypeOf = getPrototypeOf;
 	exports.strange = quux;
 
 }((this.stirred = this.stirred || {}),external));

test/form/no-treeshake/_expected/umd.js

@@ -18,7 +18,12 @@
 		return 13 + external.value;
 	}
 
+	var create = Object.create;
+	var getPrototypeOf = Object.getPrototypeOf;
+
 	exports.baz = baz;
+	exports.create = create;
+	exports.getPrototypeOf = getPrototypeOf;
 	exports.strange = quux;
 
 }));

test/form/no-treeshake/main.js

@@ -9,3 +9,5 @@ function bar () {
 export function baz () {
 	return 13 + external.value;
 }
+
+export var create = Object.create, getPrototypeOf = Object.getPrototypeOf;