Upgrade react-docgen to use new babylon parser

Reviewed By: mkonicek

Differential Revision: D4855504

fbshipit-source-id: 30c2d956242be5e8f01eb4ebc7e7afd77a72cd36

website/package.json

@@ -24,7 +24,7 @@
     "mkdirp": "^0.5.1",
     "optimist": "0.6.0",
     "react": "~0.13.0",
-    "react-docgen": "^2.9.0",
+    "react-docgen": "3.0.0-beta2",
     "react-page-middleware": "0.4.1",
     "remove-markdown": "^0.1.0",
     "request": "^2.69.0",

website/server/extractDocs.js

@@ -286,6 +286,15 @@ function getViewPropTypes() {
   // The alternative would be to duplicate more of the parsing logic here.
   function viewPropTypesConversionHandler(documentation, astPath) {
     const builders = recast.types.builders;
+
+    // This is broken because babylon@7 and estree introduced SpreadElement, and ast-types has not been updated to support it
+    // (we are broken by react-docgen broken by recast broken by ast-types)
+    astPath.get('properties').value.forEach(n => {
+      if (n.type === 'SpreadElement') {
+        n.type = 'SpreadProperty';
+      }
+    });
+
     const FauxView = builders.classDeclaration(
       builders.identifier('View'),
       builders.classBody(