Add support test262 $262 global object support (#4329)

Few test-cases in test262 uses a $262 object to run a few method (for example detachedArrayBuffer) JerryScript-DCO-1.0-Signed-off-by: bence gabor kis kisbg@inf.u-szeged.hu
2020-12-07 17:06:15 +01:00
parent 1cb18f0ca6
commit 7cb9f808f7
5 changed files with 140 additions and 194 deletions
@@ -44,6 +44,126 @@ main_register_global_function (const char *name_p, /**< name of the function */
  jerry_release_value (result_val);
 } /* main_register_global_function */

+/**
+ * Register a method for the $262 object.
+ */
+static void
+test262_register_function (jerry_value_t test262_obj, /** $262 object */
+                           const char *name_p, /**< name of the function */
+                           jerry_external_handler_t handler_p) /**< function callback */
+{
+  jerry_value_t function_name_val = jerry_create_string ((const jerry_char_t *) name_p);
+  jerry_value_t function_val = jerry_create_external_function (handler_p);
+
+  jerry_value_t result_val = jerry_set_property (test262_obj, function_name_val, function_val);
+
+  jerry_release_value (function_val);
+  jerry_release_value (function_name_val);
+
+  assert (!jerry_value_is_error (result_val));
+  jerry_release_value (result_val);
+} /* test262_register_function */
+
+/**
+ * $262.detachArrayBuffer
+ *
+ * A function which implements the DetachArrayBuffer abstract operation
+ *
+ * @return null value - if success
+ *         value marked with error flag - otherwise
+ */
+static jerry_value_t
+test262_detach_array_buffer (const jerry_value_t func_obj_val, /**< function object */
+                             const jerry_value_t this_p, /**< this arg */
+                             const jerry_value_t args_p[], /**< function arguments */
+                             const jerry_length_t args_cnt) /**< number of function arguments */
+{
+  (void) func_obj_val; /* unused */
+  (void) this_p; /* unused */
+
+  if (args_cnt < 1 || !jerry_value_is_arraybuffer (args_p[0]))
+  {
+    return jerry_create_error (JERRY_ERROR_TYPE, (jerry_char_t *) "Expected an ArrayBuffer object");
+  }
+
+  /* TODO: support the optional 'key' argument */
+
+  return jerry_detach_arraybuffer (args_p[0]);
+} /* test262_detach_array_buffer */
+
+/**
+ * $262.evalScript
+ *
+ * A function which accepts a string value as its first argument and executes it
+ *
+ * @return completion of the script parsing and execution.
+ */
+static jerry_value_t
+test262_eval_script (const jerry_value_t func_obj_val, /**< function object */
+                     const jerry_value_t this_p, /**< this arg */
+                     const jerry_value_t args_p[], /**< function arguments */
+                     const jerry_length_t args_cnt) /**< number of function arguments */
+{
+  (void) func_obj_val; /* unused */
+  (void) this_p; /* unused */
+
+  if (args_cnt < 1 || !jerry_value_is_string (args_p[0]))
+  {
+    return jerry_create_error (JERRY_ERROR_TYPE, (jerry_char_t *) "Expected a string");
+  }
+
+  jerry_size_t str_size = jerry_get_utf8_string_size (args_p[0]);
+  jerry_char_t *str_buf_p = malloc (str_size * sizeof (jerry_char_t));
+
+  if (str_buf_p == NULL || jerry_string_to_utf8_char_buffer (args_p[0], str_buf_p, str_size) != str_size)
+  {
+    free (str_buf_p);
+    return jerry_create_error (JERRY_ERROR_RANGE, (jerry_char_t *) "Internal error");
+  }
+
+  jerry_value_t ret_value = jerry_parse (NULL, 0, str_buf_p, str_size, JERRY_PARSE_NO_OPTS);
+
+  if (!jerry_value_is_error (ret_value))
+  {
+    jerry_value_t func_val = ret_value;
+    ret_value = jerry_run (func_val);
+    jerry_release_value (func_val);
+  }
+
+  free (str_buf_p);
+
+  return ret_value;
+} /* test262_eval_script */
+
+/**
+ * Init the $262 object
+ */
+static void
+register_test262 (void)
+{
+  jerry_value_t global_obj = jerry_get_global_object ();
+  jerry_value_t test262_object = jerry_create_object ();
+
+  test262_register_function (test262_object, "detachArrayBuffer", test262_detach_array_buffer);
+  test262_register_function (test262_object, "evalScript", test262_eval_script);
+  test262_register_function (test262_object, "gc", jerryx_handler_gc);
+
+  jerry_value_t prop_name = jerry_create_string ((const jerry_char_t *) "global");
+  jerry_value_t result = jerry_set_property (test262_object, prop_name, global_obj);
+  assert (!jerry_value_is_error (result));
+  jerry_release_value (prop_name);
+  jerry_release_value (result);
+  prop_name = jerry_create_string ((const jerry_char_t *) "$262");
+  result = jerry_set_property (global_obj, prop_name, test262_object);
+
+  jerry_release_value (prop_name);
+  assert (!jerry_value_is_error (result));
+
+  jerry_release_value (global_obj);
+  jerry_release_value (test262_object);
+  jerry_release_value (result);
+} /* register_test262 */
+
 /**
 * Inits the engine and the debugger
 */
@@ -76,7 +196,10 @@ main_init_engine (main_args_t *arguments_p) /** main arguments */
      jerryx_debugger_after_connect (protocol && jerryx_debugger_ws_create ());
    }
  }
-
+  if (arguments_p->option_flags & OPT_FLAG_TEST262_OBJECT)
+  {
+    register_test262 ();
+  }
  main_register_global_function ("assert", jerryx_handler_assert);
  main_register_global_function ("gc", jerryx_handler_gc);
  main_register_global_function ("print", jerryx_handler_print);