From b5f45d6597717c1d440b801122b4a02ffbbdf4da Mon Sep 17 00:00:00 2001
From: Mykola Bilochub <nbelochub@gmail.com>
Date: Sat, 3 Jun 2017 02:39:16 +0300
Subject: [PATCH] parser: disallow empty hex, octal, binary literals

Refs: https://github.com/metarhia/jstp/issues/175
PR-URL: https://github.com/metarhia/jstp/pull/207
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Alexey Orlenko <eaglexrlnk@gmail.com>
---
 src/jsrs_parser.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/jsrs_parser.cc b/src/jsrs_parser.cc
index 5dc93b3..7273099 100644
--- a/src/jsrs_parser.cc
+++ b/src/jsrs_parser.cc
@@ -334,6 +334,10 @@ MaybeLocal<Value> ParseNumber(Isolate*    isolate,
   } else {
     result = ParseIntegerNumber(isolate, number_start, end, size,
                                 base, negate_result);
+    if (*size == 0) {
+      THROW_EXCEPTION(SyntaxError, "Empty number value");
+      return MaybeLocal<Value>();
+    }
   }
   *size += number_start - begin;
   return result;