put experimental ES7 features behind a flag --experimental and experimental option

2014-11-21 19:36:35 +11:00
parent 8b46cce466
commit bd91bbee71
12 changed files with 62 additions and 43 deletions
--- a/lib/6to5/util.js
+++ b/lib/6to5/util.js
@@ -218,7 +218,7 @@ exports.parse = function (opts, code, callback) {
    var ast = acorn.parse(code, {
      allowReturnOutsideFunction: true,
      preserveParens:             true,
-      ecmaVersion:                Infinity,
+      ecmaVersion:                opts.experimental ? 7 : 6,
      strictMode:                 true,
      onComment:                  comments,
      locations:                  true,