Introduce jerry_port_track_promise_rejection (#4451)

This patch resolves #2931.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

jerry-core/include/jerryscript-port.h

@@ -252,6 +252,28 @@ size_t jerry_port_normalize_path (const char *in_path_p,
  */
 jerry_value_t jerry_port_get_native_module (jerry_value_t name);
 
+/**
+ * HostPromiseRejectionTracker operations
+ */
+typedef enum
+{
+  JERRY_PROMISE_REJECTION_OPERATION_REJECT, /**< promise is rejected without any handlers */
+  JERRY_PROMISE_REJECTION_OPERATION_HANDLE, /**< handler is added to a rejected promise for the first time */
+} jerry_promise_rejection_operation_t;
+
+/**
+ * Track unhandled promise rejections.
+ *
+ * Note:
+ *      This port function is called by jerry-core when JERRY_BUILTIN_PROMISE
+ *      is enabled.
+ *
+ * @param promise rejected promise
+ * @param operation HostPromiseRejectionTracker operation
+ */
+void jerry_port_track_promise_rejection (const jerry_value_t promise,
+                                         const jerry_promise_rejection_operation_t operation);
+
 /**
  * @}
  */