Add fast-path check to ecma_builtin_array_prototype_slice (#3480)

Fixes #3459 JerryScript-DCO-1.0-Signed-off-by: Peter Marki marpeter@inf.u-szeged.hu
2020-01-06 10:30:10 +01:00
parent dc15944ebd
commit 300570381f
2 changed files with 24 additions and 1 deletions
@@ -0,0 +1,21 @@
+// 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.
+
+class MyOtherArray {}
+
+class MyNonArray extends Array {
+  static [Symbol.species] () {}
+}
+
+(() => MyNonArray)().prototype.slice.call(new MyNonArray((0) === 1))