1// Copyright JS Foundation and other contributors, http://js.foundation
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15
16function check_reference_error (code)
17{
18  try {
19    eval (code)
20    assert (false)
21  } catch (e) {
22    assert (e instanceof ReferenceError)
23  }
24}
25
26check_reference_error("for (let x of [x]) {}")
27check_reference_error("for (const x of [x]) {}")
28
29check_reference_error("for (let x in {x}) {}")
30check_reference_error("for (const x in {x}) {}")
31