Ensure that symbol properties are not listed in ecma_builtin_list_lazy_property_names (#2734)

This patch fixes #2733. JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
2019-01-31 13:42:18 +01:00
parent 924f4bbd74
commit 1ff322b72f
2 changed files with 58 additions and 0 deletions
@@ -0,0 +1,49 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+var recursion_counter = 0;
+var recursion_limit = 1000;
+var fz_globalObject = this
+
+function fz_is_primitive(value) {
+    var value_type = typeof value
+    if (value_type !== "function" && value_type !== "object")
+        return value_type
+}
+
+function fz_starts_with(str, pattern) {
+    for (var i = 0; i < pattern.length; i++)
+        if (str[i] !== pattern[i])
+            return
+    return true
+}
+
+function fz_collect_values(value) {
+    if (++recursion_counter >= recursion_limit) {
+      return
+    }
+
+    var primitive = fz_is_primitive(value)
+    if (primitive)
+        return
+    var prop_names = Object.getOwnPropertyNames(value)
+    for (var i = 0; i < prop_names.length; i++) {
+        var prop_name = prop_names[i]
+        if (!fz_starts_with(prop_name, "fz_")) {
+            fz_collect_values(value[prop_name])
+        }
+    }
+}
+
+fz_collect_values(fz_globalObject)