/* 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.
 */

function f() {
  try {
    a;
    assert (false);
  } catch (e) {
    assert (e instanceof ReferenceError);
  }

  eval ("assert (a === undefined); { function a() { return 5; } }");
  assert (a() === 5);

  /* Variables created by eval can be deleted. */
  delete a;

  try {
    a;
    assert (false);
  } catch (e) {
    assert (e instanceof ReferenceError);
  }
}
f();

function g() {
  let a = 1;

  eval ("assert (a === 1);"
        + "{ function a() { return 2; } assert (a() === 2) }"
        + "assert (a === 1);");

  assert (a === 1);
}
g();