Add support for export type star in babel-generator (#5985)

* Add support for export type star in babel-generator

* Bump babylon

packages/babel-generator/src/generators/flow.js

@@ -1,4 +1,5 @@
 import * as t from "babel-types";
+import { ExportAllDeclaration } from "./modules";
 
 export function AnyTypeAnnotation() {
   this.word("any");
@@ -100,17 +101,10 @@ export function DeclareExportDeclaration(node: Object) {
   FlowExportDeclaration.apply(this, arguments);
 }
 
-export function DeclareExportAllDeclaration(node: Object) {
+export function DeclareExportAllDeclaration(/*node: Object*/) {
   this.word("declare");
   this.space();
-  this.word("export");
-  this.space();
-  this.token("*");
-  this.space();
-  this.word("from");
-  this.space();
-  this.print(node.source, node);
-  this.semicolon();
+  ExportAllDeclaration.apply(this, arguments);
 }
 
 function FlowExportDeclaration(node: Object) {

packages/babel-generator/src/generators/modules.js

@@ -44,6 +44,10 @@ export function ExportNamespaceSpecifier(node: Object) {
 export function ExportAllDeclaration(node: Object) {
   this.word("export");
   this.space();
+  if (node.exportKind === "type") {
+    this.word("type");
+    this.space();
+  }
   this.token("*");
   this.space();
   this.word("from");

packages/babel-generator/test/fixtures/flow/declare-exports/actual.js

@@ -22,3 +22,5 @@ declare module B {
   declare export type B = {};
   declare export interface Moon {}
 }
+
+declare module "foo" { declare export type * from "bar"; }

packages/babel-generator/test/fixtures/flow/declare-exports/expected.js

@@ -29,4 +29,7 @@ declare export { c, d } from 'bar';
 declare module B {
   declare export type B = {};
   declare export interface Moon {}
+}
+declare module "foo" {
+  declare export type * from "bar";
 }

packages/babel-generator/test/fixtures/flow/type-annotations/actual.js

@@ -123,3 +123,4 @@ var a: {| subtract: (x: number, ...y: Array<string>) => void |};
 var a: {| id<T>(x: T): T; |};
 function foo(numVal: number = 2) {}
 function foo(numVal?: number = 2) {}
+export type * from "foo";

packages/babel-generator/test/fixtures/flow/type-annotations/expected.js

@@ -286,4 +286,6 @@ var a: {|
 
 function foo(numVal: number = 2) {}
 
-function foo(numVal?: number = 2) {}
+function foo(numVal?: number = 2) {}
+
+export type * from "foo";

packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/strip-declare-exports/actual.js

@@ -12,4 +12,5 @@ declare export class A { static () : number }
 declare export class A mixins B<T>, C {}
 declare export default class A {}
 declare export default function foo(): void;
-declare export default string
+declare export default string
+declare module "foo" { declare export type * from "bar"; }

packages/babel-plugin-transform-flow-strip-types/test/fixtures/strip-types/strip-type-annotations/actual.js

@@ -105,3 +105,4 @@ import {typeof V3, V4} from "foo";
 export interface foo5 { p: number }
 export interface foo6<T> { p: T }
 import 'foo';
+export type * from "foo";