Add missing error check to ecma_builtin_regexp_prototype_compile (#4022)

Fixes #4017

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

jerry-core/ecma/builtin-objects/ecma-builtin-regexp-prototype.c

@@ -291,6 +291,11 @@ ecma_builtin_regexp_prototype_compile (ecma_value_t this_arg, /**< this */
                                                       ecma_make_uint32_value (0),
                                                       ECMA_PROPERTY_FLAG_WRITABLE | ECMA_PROP_IS_THROW);
 
+  if (ECMA_IS_VALUE_ERROR (status))
+  {
+    return status;
+  }
+
   JERRY_ASSERT (ecma_is_value_true (status));
 
   if (ecma_object_is_regexp_object (pattern_arg))

tests/jerry/es.next/regression-test-issue-4017.js

@@ -0,0 +1,20 @@
+// 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.
+
+try {
+  var v0 = Object.freeze (RegExp ("foo", "g")).compile ();
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}