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

targets/esp-idf/promise.c

@@ -0,0 +1,45 @@
+/* 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 "jerryscript-port.h"
+
+/**
+ * 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)
+{
+  (void) operation; /* unused */
+
+  jerry_value_t reason = jerry_get_promise_result (promise);
+  jerry_value_t reason_to_string = jerry_value_to_string (reason);
+  jerry_size_t req_sz = jerry_get_utf8_string_size (reason_to_string);
+  jerry_char_t str_buf_p[req_sz + 1];
+  jerry_string_to_utf8_char_buffer (reason_to_string, str_buf_p, req_sz);
+  str_buf_p[req_sz] = '\0';
+
+  jerry_release_value (reason_to_string);
+  jerry_release_value (reason);
+
+  jerry_port_log (JERRY_LOG_LEVEL_WARNING, "Uncaught (in promise) %s\n", str_buf_p);
+} /* jerry_port_track_promise_rejection */

targets/nuttx-stm32f4/jerry_port.c

@@ -227,3 +227,32 @@ jerry_port_get_current_context (void)
 {
   return current_context_p;
 } /* jerry_port_get_current_context */
+
+/**
+ * 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)
+{
+  (void) operation; /* unused */
+
+  jerry_value_t reason = jerry_get_promise_result (promise);
+  jerry_value_t reason_to_string = jerry_value_to_string (reason);
+  jerry_size_t req_sz = jerry_get_utf8_string_size (reason_to_string);
+  jerry_char_t str_buf_p[req_sz + 1];
+  jerry_string_to_utf8_char_buffer (reason_to_string, str_buf_p, req_sz);
+  str_buf_p[req_sz] = '\0';
+
+  jerry_release_value (reason_to_string);
+  jerry_release_value (reason);
+
+  jerry_port_log (JERRY_LOG_LEVEL_WARNING, "Uncaught (in promise) %s\n", str_buf_p);
+} /* jerry_port_track_promise_rejection */