diff --git a/packages/babel/src/transformation/modules/_default.js b/packages/babel/src/transformation/modules/_default.js
index 940e10e3ef..7a8e6dd8af 100644
--- a/packages/babel/src/transformation/modules/_default.js
+++ b/packages/babel/src/transformation/modules/_default.js
@@ -1,189 +1,10 @@
+import * as metadataVisitor from "./lib/metadata";
 import * as messages from "../../messages";
 import Remaps from "./lib/remaps";
-import extend from "lodash/object/extend";
 import object from "../../helpers/object";
 import * as util from  "../../util";
 import * as t from "../../types";
 
-/**
- * [Please add a description.]
- */
-
-var metadataVisitor = {
-
-  /**
-   * [Please add a description.]
-   */
-
-  ModuleDeclaration: {
-    enter(node, parent, scope, formatter) {
-      if (node.source) {
-        node.source.value = formatter.file.resolveModuleSource(node.source.value);
-        formatter.addScope(this);
-      }
-    }
-  },
-
-  /**
-   * [Please add a description.]
-   */
-
-  ImportDeclaration: {
-    exit(node, parent, scope, formatter) {
-      formatter.hasLocalImports = true;
-
-      var specifiers = [];
-      var imported = [];
-      formatter.metadata.imports.push({
-        source: node.source.value,
-        imported,
-        specifiers
-      });
-
-      for (var specifier of (this.get("specifiers"): Array)) {
-        var ids = specifier.getBindingIdentifiers();
-        extend(formatter.localImports, ids);
-
-        var local = specifier.node.local.name;
-
-        if (specifier.isImportDefaultSpecifier()) {
-          imported.push("default");
-          specifiers.push({
-            kind: "named",
-            imported: "default",
-            local
-          });
-        }
-
-        if (specifier.isImportSpecifier()) {
-          var importedName = specifier.node.imported.name;
-          imported.push(importedName);
-          specifiers.push({
-            kind: "named",
-            imported: importedName,
-            local
-          });
-        }
-
-        if (specifier.isImportNamespaceSpecifier()) {
-          imported.push("*");
-          specifiers.push({
-            kind: "namespace",
-            local
-          });
-        }
-      }
-    }
-  },
-
-  /**
-   * [Please add a description.]
-   */
-
-  ExportDeclaration(node, parent, scope, formatter) {
-    formatter.hasLocalExports = true;
-
-    var source = node.source ? node.source.value : null;
-    var exports = formatter.metadata.exports;
-
-    // export function foo() {}
-    // export var foo = "bar";
-    var declar = this.get("declaration");
-    if (declar.isStatement()) {
-      var bindings = declar.getBindingIdentifiers();
-
-      for (var name in bindings) {
-        var binding = bindings[name];
-        formatter._addExport(name, binding);
-
-        exports.exported.push(name);
-        exports.specifiers.push({
-          kind: "local",
-          local: name,
-          exported: this.isExportDefaultDeclaration() ? "default" : name
-        });
-      }
-    }
-
-    if (this.isExportNamedDeclaration() && node.specifiers) {
-      for (var specifier of (node.specifiers: Array)) {
-        var exported = specifier.exported.name;
-        exports.exported.push(exported);
-
-        // export foo from "bar";
-        if (t.isExportDefaultSpecifier(specifier)) {
-          exports.specifiers.push({
-            kind: "external",
-            local: exported,
-            exported,
-            source
-          });
-        }
-
-        // export * as foo from "bar";
-        if (t.isExportNamespaceSpecifier(specifier)) {
-          exports.specifiers.push({
-            kind: "external-namespace",
-            exported,
-            source
-          });
-        }
-
-        var local = specifier.local;
-        if (!local) continue;
-
-        formatter._addExport(local.name, specifier.exported);
-
-        // export { foo } from "bar";
-        // export { foo as bar } from "bar";
-        if (source) {
-          exports.specifiers.push({
-            kind: "external",
-            local: local.name,
-            exported,
-            source
-          });
-        }
-
-        // export { foo };
-        // export { foo as bar };
-        if (!source) {
-          exports.specifiers.push({
-            kind: "local",
-            local: local.name,
-            exported
-          });
-        }
-      }
-    }
-
-    // export * from "bar";
-    if (this.isExportAllDeclaration()) {
-      exports.specifiers.push({
-        kind: "external-all",
-        source
-      });
-    }
-
-    if (!t.isExportDefaultDeclaration(node) && !declar.isTypeAlias()) {
-      var onlyDefault = node.specifiers && node.specifiers.length === 1 && t.isSpecifierDefault(node.specifiers[0]);
-      if (!onlyDefault) {
-        formatter.hasNonDefaultExports = true;
-      }
-    }
-  },
-
-  /**
-   * [Please add a description.]
-   */
-
-  Scope(node, parent, scope, formatter) {
-    if (!formatter.isLoose()) {
-      this.skip();
-    }
-  }
-};
-
 /**
  * [Please add a description.]
  */
diff --git a/packages/babel/src/transformation/modules/lib/metadata.js b/packages/babel/src/transformation/modules/lib/metadata.js
new file mode 100644
index 0000000000..7c17b1f12e
--- /dev/null
+++ b/packages/babel/src/transformation/modules/lib/metadata.js
@@ -0,0 +1,174 @@
+import extend from "lodash/object/extend";
+import * as t from "../../../types";
+
+/**
+ * [Please add a description.]
+ */
+
+export var ModuleDeclaration = {
+  enter(node, parent, scope, formatter) {
+    if (node.source) {
+      node.source.value = formatter.file.resolveModuleSource(node.source.value);
+      formatter.addScope(this);
+    }
+  }
+};
+
+/**
+ * [Please add a description.]
+ */
+
+export var ImportDeclaration = {
+  exit(node, parent, scope, formatter) {
+    formatter.hasLocalImports = true;
+
+    var specifiers = [];
+    var imported = [];
+    formatter.metadata.imports.push({
+      source: node.source.value,
+      imported,
+      specifiers
+    });
+
+    for (var specifier of (this.get("specifiers"): Array)) {
+      var ids = specifier.getBindingIdentifiers();
+      extend(formatter.localImports, ids);
+
+      var local = specifier.node.local.name;
+
+      if (specifier.isImportDefaultSpecifier()) {
+        imported.push("default");
+        specifiers.push({
+          kind: "named",
+          imported: "default",
+          local
+        });
+      }
+
+      if (specifier.isImportSpecifier()) {
+        var importedName = specifier.node.imported.name;
+        imported.push(importedName);
+        specifiers.push({
+          kind: "named",
+          imported: importedName,
+          local
+        });
+      }
+
+      if (specifier.isImportNamespaceSpecifier()) {
+        imported.push("*");
+        specifiers.push({
+          kind: "namespace",
+          local
+        });
+      }
+    }
+  }
+};
+
+/**
+ * [Please add a description.]
+ */
+
+export function ExportDeclaration(node, parent, scope, formatter) {
+  formatter.hasLocalExports = true;
+
+  var source = node.source ? node.source.value : null;
+  var exports = formatter.metadata.exports;
+
+  // export function foo() {}
+  // export var foo = "bar";
+  var declar = this.get("declaration");
+  if (declar.isStatement()) {
+    var bindings = declar.getBindingIdentifiers();
+
+    for (var name in bindings) {
+      var binding = bindings[name];
+      formatter._addExport(name, binding);
+
+      exports.exported.push(name);
+      exports.specifiers.push({
+        kind: "local",
+        local: name,
+        exported: this.isExportDefaultDeclaration() ? "default" : name
+      });
+    }
+  }
+
+  if (this.isExportNamedDeclaration() && node.specifiers) {
+    for (var specifier of (node.specifiers: Array)) {
+      var exported = specifier.exported.name;
+      exports.exported.push(exported);
+
+      // export foo from "bar";
+      if (t.isExportDefaultSpecifier(specifier)) {
+        exports.specifiers.push({
+          kind: "external",
+          local: exported,
+          exported,
+          source
+        });
+      }
+
+      // export * as foo from "bar";
+      if (t.isExportNamespaceSpecifier(specifier)) {
+        exports.specifiers.push({
+          kind: "external-namespace",
+          exported,
+          source
+        });
+      }
+
+      var local = specifier.local;
+      if (!local) continue;
+
+      formatter._addExport(local.name, specifier.exported);
+
+      // export { foo } from "bar";
+      // export { foo as bar } from "bar";
+      if (source) {
+        exports.specifiers.push({
+          kind: "external",
+          local: local.name,
+          exported,
+          source
+        });
+      }
+
+      // export { foo };
+      // export { foo as bar };
+      if (!source) {
+        exports.specifiers.push({
+          kind: "local",
+          local: local.name,
+          exported
+        });
+      }
+    }
+  }
+
+  // export * from "bar";
+  if (this.isExportAllDeclaration()) {
+    exports.specifiers.push({
+      kind: "external-all",
+      source
+    });
+  }
+
+  if (!t.isExportDefaultDeclaration(node) && !declar.isTypeAlias()) {
+    var onlyDefault = node.specifiers && node.specifiers.length === 1 && t.isSpecifierDefault(node.specifiers[0]);
+    if (!onlyDefault) {
+      formatter.hasNonDefaultExports = true;
+    }
+  }
+}
+
+/**
+ * [Please add a description.]
+ */
+
+export function Scope(node, parent, scope, formatter) {
+  if (!formatter.isLoose()) {
+    this.skip();
+  }
+}