| <!doctype html> |
| <meta charset="utf-8"> |
| |
| <script>function document() {}</script> |
| <script>function window() {}</script> |
| <script>function location() {}</script> |
| <script>function top() {}</script> |
| <p>!! Per spec (https://tc39.es/ecma262/#sec-globaldeclarationinstantiation), only TypeError exceptions should be thrown for preceding scripts. |
| <p>This test ensures that non-configurable global properties aren't overwriten by function declarations.</p> |
| |
| <pre id="theConsole"></pre> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| for (const prop of ["document", "window", "location", "top"]) { |
| const actual = typeof globalThis[prop]; |
| if (actual === "object") |
| theConsole.append(`PASS: typeof globalThis["${prop}"] is "object"\n`); |
| else |
| theConsole.append(`FAIL: typeof globalThis["${prop}"] should be "object", was: "${actual}"\n`); |
| } |
| </script> |
