Implement @@toStringTag well-known symbol related features (#2739)

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
2019-02-01 14:59:22 +01:00
parent ca8442c523
commit 5c1a4f18ea
11 changed files with 277 additions and 1 deletions
@@ -734,6 +734,30 @@ ecma_op_object_get_by_magic_id (ecma_object_t *object_p, /**< the object */
  return ecma_op_object_get (object_p, ecma_get_magic_string (property_id));
 } /* ecma_op_object_get_by_magic_id */

+#ifndef CONFIG_DISABLE_ES2015_SYMBOL_BUILTIN
+/**
+ * [[Get]] operation of ecma object where the property is a well-known symbol
+ *
+ * @return ecma value
+ *         Returned value must be freed with ecma_free_value
+ */
+ecma_value_t
+ecma_op_object_get_by_symbol_id (ecma_object_t *object_p, /**< the object */
+                                 lit_magic_string_id_t property_id) /**< property symbol id */
+{
+  ecma_value_t symbol_value = ecma_op_object_get_by_magic_id (ecma_builtin_get (ECMA_BUILTIN_ID_SYMBOL),
+                                                              property_id);
+  JERRY_ASSERT (ecma_is_value_symbol (symbol_value));
+
+  ecma_string_t *symbol_p = ecma_get_symbol_from_value (symbol_value);
+  ecma_value_t ret_value = ecma_op_object_get (object_p, symbol_p);
+
+  ecma_deref_ecma_string (symbol_p);
+
+  return ret_value;
+} /* ecma_op_object_get_by_symbol_id */
+#endif /* !CONFIG_DISABLE_ES2015_SYMBOL_BUILTIN */
+
 /**
 * [[Put]] ecma general object's operation
 *