Allow changing the 'this' binding of a realm (#4357)

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
2020-12-14 10:05:30 +01:00
parent 7e135b04ed
commit fe29bf7390
15 changed files with 198 additions and 45 deletions
@@ -0,0 +1,140 @@
+/* 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.
+ */
+
+#include "ecma-globals.h"
+#include "ecma-helpers.h"
+
+#include "test-common.h"
+
+static void
+create_number_property (jerry_value_t object_value, /**< object value */
+                        char *name_p, /**< name */
+                        double number) /**< value */
+{
+  jerry_value_t name_value = jerry_create_string ((const jerry_char_t *) name_p);
+  jerry_value_t number_value = jerry_create_number (number);
+  jerry_value_t result_value = jerry_set_property (object_value, name_value, number_value);
+  TEST_ASSERT (!jerry_value_is_error (result_value));
+
+  jerry_release_value (result_value);
+  jerry_release_value (number_value);
+  jerry_release_value (name_value);
+} /* create_number_property */
+
+static double
+get_number_property (jerry_value_t object_value, /**< object value */
+                     char *name_p) /**< name */
+{
+  jerry_value_t name_value = jerry_create_string ((const jerry_char_t *) name_p);
+  jerry_value_t result_value = jerry_get_property (object_value, name_value);
+  TEST_ASSERT (!jerry_value_is_error (result_value));
+  TEST_ASSERT (jerry_value_is_number (result_value));
+
+  double result = jerry_get_number_value (result_value);
+
+  jerry_release_value (result_value);
+  jerry_release_value (name_value);
+  return result;
+} /* get_number_property */
+
+static double
+eval_and_get_number (char *script_p) /**< script source */
+{
+  jerry_value_t result_value;
+  result_value = jerry_eval ((const jerry_char_t *) script_p, strlen (script_p), JERRY_PARSE_NO_OPTS);
+
+  TEST_ASSERT (jerry_value_is_number (result_value));
+  double result = jerry_get_number_value (result_value);
+  jerry_release_value (result_value);
+  return result;
+} /* eval_and_get_number */
+
+/**
+ * Unit test's main function.
+ */
+int
+main (void)
+{
+  TEST_INIT ();
+
+  jerry_init (JERRY_INIT_EMPTY);
+
+  if (!jerry_is_feature_enabled (JERRY_FEATURE_REALM))
+  {
+    printf ("Skipping test, Realms not enabled\n");
+    return 0;
+  }
+
+  jerry_value_t global_value = jerry_get_global_object ();
+  jerry_value_t realm_value = jerry_create_realm ();
+
+  create_number_property (global_value, "a", 3.5);
+  create_number_property (global_value, "b", 7.25);
+  create_number_property (realm_value, "a", -1.25);
+  create_number_property (realm_value, "b", -6.75);
+
+  TEST_ASSERT (eval_and_get_number ("a") == 3.5);
+
+  jerry_value_t result_value = jerry_set_realm (realm_value);
+  TEST_ASSERT (result_value == global_value);
+  TEST_ASSERT (eval_and_get_number ("a") == -1.25);
+
+  result_value = jerry_set_realm (global_value);
+  TEST_ASSERT (result_value == realm_value);
+  TEST_ASSERT (eval_and_get_number ("b") == 7.25);
+
+  result_value = jerry_set_realm (realm_value);
+  TEST_ASSERT (result_value == global_value);
+  TEST_ASSERT (eval_and_get_number ("b") == -6.75);
+
+  result_value = jerry_set_realm (global_value);
+  TEST_ASSERT (result_value == realm_value);
+
+  jerry_value_t object_value = jerry_create_object ();
+  result_value = jerry_set_realm (object_value);
+  TEST_ASSERT (jerry_value_is_error (result_value));
+  jerry_release_value (result_value);
+  jerry_release_value (object_value);
+
+  jerry_release_value (global_value);
+  jerry_release_value (realm_value);
+
+  realm_value = jerry_create_realm ();
+
+  result_value = jerry_set_realm (realm_value);
+  TEST_ASSERT (!jerry_value_is_error (result_value));
+  object_value = jerry_create_object ();
+  jerry_set_realm (result_value);
+
+  result_value = jerry_realm_set_this (realm_value, object_value);
+  TEST_ASSERT (jerry_value_is_boolean (result_value) && jerry_get_boolean_value (result_value));
+  jerry_release_value (result_value);
+
+  create_number_property (object_value, "x", 7.25);
+  create_number_property (object_value, "y", 1.25);
+
+  result_value = jerry_set_realm (realm_value);
+  TEST_ASSERT (!jerry_value_is_error (result_value));
+  TEST_ASSERT (eval_and_get_number ("var z = -5.5; x + this.y") == 8.5);
+  jerry_set_realm (result_value);
+
+  TEST_ASSERT (get_number_property (object_value, "z") == -5.5);
+
+  jerry_release_value (object_value);
+  jerry_release_value (realm_value);
+
+  jerry_cleanup ();
+  return 0;
+} /* main */