From 014f873ec1b5069b944cea615b96d0cf1626e7a1 Mon Sep 17 00:00:00 2001
From: jchbh <changhai.jiang@gmail.com>
Date: Fri, 22 May 2015 10:02:41 -0700
Subject: [PATCH] remove of from operator. need more test.

---
 lib/parse.js | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/lib/parse.js b/lib/parse.js
index f1874b30..4347161c 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -44,7 +44,7 @@
 
 "use strict";
 
-var KEYWORDS = 'break case catch const continue debugger default delete do else finally for function if in of instanceof new return yield switch throw try typeof var let void while with';
+var KEYWORDS = 'break case catch const continue debugger default delete do else finally for function if in instanceof new return yield switch throw try typeof var let void while with';
 var KEYWORDS_ATOM = 'false null true';
 var RESERVED_WORDS = 'abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized this throws transient volatile yield'
     + " " + KEYWORDS_ATOM + " " + KEYWORDS;
@@ -63,7 +63,6 @@ var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;
 
 var OPERATORS = makePredicate([
     "in",
-    "of",
     "instanceof",
     "typeof",
     "new",
@@ -613,7 +612,7 @@ var PRECEDENCE = (function(a, ret){
         ["^"],
         ["&"],
         ["==", "===", "!=", "!=="],
-        ["<", ">", "<=", ">=", "in", "of", "instanceof"],
+        ["<", ">", "<=", ">=", "in", "instanceof"],
         [">>", "<<", ">>>"],
         ["+", "-"],
         ["*", "/", "%"]
@@ -934,7 +933,7 @@ function parse($TEXT, options) {
                 next();
                 return for_in(init);
             }
-            if (is("operator", "of")) {
+            if (is("name", "of")) {
                 if (init instanceof AST_Var && init.definitions.length > 1)
                     croak("Only one variable declaration allowed in for..of loop");
                 next();
@@ -1420,7 +1419,7 @@ function parse($TEXT, options) {
 
     var expr_op = function(left, min_prec, no_in) {
         var op = is("operator") ? S.token.value : null;
-        if ((op == "in" || op == "of")&& no_in) op = null;
+        if (op == "in"&& no_in) op = null;
         var prec = op != null ? PRECEDENCE[op] : null;
         if (prec != null && prec > min_prec) {
             next();