ES6: Disallow binary and octal representation in Number

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdlib.h>
 #include <limits>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 6266 matching lines @@
         DCHECK_EQ(static_cast<int>(subject->hash_field()),
                   static_cast<int>(hash));
 #endif
         subject->set_hash_field(hash);
       }
       return Smi::FromInt(d);
     }
   }
 
   // Slower case.
-  int flags = ALLOW_HEX;
-  if (FLAG_harmony_numeric_literals) {
-    // The current spec draft has not updated "ToNumber Applied to the String
-    // Type", https://bugs.ecmascript.org/show_bug.cgi?id=1584
-    flags |= ALLOW_OCTAL | ALLOW_BINARY;
-  }
-
-  return *isolate->factory()->NewNumber(StringToDouble(
-      isolate->unicode_cache(), *subject, flags));
+  // Octal and binary are not allowed in ToNumber.
+  return *isolate->factory()->NewNumber(
+      StringToDouble(isolate->unicode_cache(), *subject, ALLOW_HEX));
 }
 
 
 RUNTIME_FUNCTION(Runtime_NewString) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
   CONVERT_INT32_ARG_CHECKED(length, 0);
   CONVERT_BOOLEAN_ARG_CHECKED(is_one_byte, 1);
   if (length == 0) return isolate->heap()->empty_string();
   Handle<String> result;
@@ skipping 9433 matching lines @@
   }
   return NULL;
 }
 
 
 const Runtime::Function* Runtime::FunctionForId(Runtime::FunctionId id) {
   return &(kIntrinsicFunctions[static_cast<int>(id)]);
 }
 
 } }  // namespace v8::internal