Implement nullish coalescing operator (#3997)

JerryScript-DCO-1.0-Signed-off-by: bence gabor kis kisbg@inf.u-szeged.hu
2020-07-17 15:42:51 +02:00
parent f60e16d9d5
commit dfd9d4497a
13 changed files with 323 additions and 72 deletions
@@ -1206,6 +1206,10 @@ parser_error_to_string (parser_error_t error) /**< error code */
    {
      return "Left operand of ** operator cannot be unary expression.";
    }
+    case PARSER_ERR_INVALID_NULLISH_COALESCING:
+    {
+      return "Cannot chain nullish with logical AND or OR.";
+    }
    case PARSER_ERR_FORMAL_PARAM_AFTER_REST_PARAMETER:
    {
      return "Rest parameter must be the last formal parameter.";