From f794e360f09b5580ab661a12e230de629771d4d2 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Mon, 30 Mar 2015 03:38:14 +1100
Subject: [PATCH] add support for export extensions
 https://github.com/leebyron/ecmascript-more-export-from - closes #1091

---
 src/statement.js | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/statement.js b/src/statement.js
index 9ca10174b9..be8e33786f 100755
--- a/src/statement.js
+++ b/src/statement.js
@@ -559,10 +559,10 @@ pp.parseExport = function(node) {
   this.next()
   // export * from '...'
   if (this.eat(tt.star)) {
-    this.expectContextual("from")
-    node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
-    this.semicolon()
-    this.checkExport(node)
+    if (this.options.features["es7.exportExtensions"] && this.eatContextual("as")) {
+      node.exported = this.parseIdent()
+    }
+    this.parseExportFrom(node)
     return this.finishNode(node, "ExportAllDeclaration")
   }
   if (this.eat(tt._default)) { // export default ...
@@ -587,6 +587,10 @@ pp.parseExport = function(node) {
     node.declaration = this.parseStatement(true)
     node.specifiers = []
     node.source = null
+  } else if (this.type === tt.name) {
+    node.exported = this.parseIdent()
+    this.parseExportFrom(node)
+    return this.finishNode(node, "ExportNamespaceDeclaration")
   } else { // export { x, y as z } [from '...']
     node.declaration = null
     node.specifiers = this.parseExportSpecifiers()
@@ -601,6 +605,13 @@ pp.parseExport = function(node) {
   return this.finishNode(node, "ExportNamedDeclaration")
 }
 
+pp.parseExportFrom = function(node) {
+  this.expectContextual("from")
+  node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+  this.semicolon()
+  this.checkExport(node)
+}
+
 pp.shouldParseExportDeclaration = function() {
   return this.options.features["es7.asyncFunctions"] && this.isContextual("async")
 }