Implement import.meta object (#4766)

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

jerry-core/include/jerryscript-core.h

@@ -274,6 +274,7 @@ jerry_value_t jerry_module_link (const jerry_value_t module_val,
 jerry_value_t jerry_module_evaluate (const jerry_value_t module_val);
 jerry_module_state_t jerry_module_get_state (const jerry_value_t module_val);
 void jerry_module_set_state_changed_callback (jerry_module_state_changed_callback_t callback, void *user_p);
+void jerry_module_set_import_meta_callback (jerry_module_import_meta_callback_t callback, void *user_p);
 size_t jerry_module_get_number_of_requests (const jerry_value_t module_val);
 jerry_value_t jerry_module_get_request (const jerry_value_t module_val, size_t request_index);
 jerry_value_t jerry_module_get_namespace (const jerry_value_t module_val);

jerry-core/include/jerryscript-snapshot.h

@@ -30,7 +30,7 @@ extern "C"
 /**
  * Jerry snapshot format version.
  */
-#define JERRY_SNAPSHOT_VERSION (68u)
+#define JERRY_SNAPSHOT_VERSION (69u)
 
 /**
  * Flags for jerry_generate_snapshot and jerry_generate_function_snapshot.

jerry-core/include/jerryscript-types.h

@@ -588,6 +588,12 @@ typedef jerry_value_t (*jerry_module_import_callback_t) (const jerry_value_t spe
 typedef void (*jerry_module_state_changed_callback_t) (jerry_module_state_t new_state, const jerry_value_t module,
                                                        const jerry_value_t value, void *user_p);
 
+/**
+ * Callback which is called when an import.meta expression of a module is evaluated the first time.
+ */
+typedef void (*jerry_module_import_meta_callback_t) (const jerry_value_t module,
+                                                     const jerry_value_t meta_object, void *user_p);
+
 /**
  * Callback which is called by jerry_module_evaluate to evaluate the native module.
  */