v8/tools/clusterfuzz/js_fuzzer/resources/stubs.js
Michael Achenbach 320d98709f Open source js-fuzzer
This is a JavaScript fuzzer originally authored by Oliver Chang. It
is a mutation based fuzzer using Babel code transformations. For more
information see the included README.md.

The original code was altered:
- Add new V8 copyright headers.
- Make the test expectation generator aware of the headers.
- Fix file endings for presubmit checks.
- Fix `npm test` on fresh checkout with a new fake DB.
- Make test skipping work with new v8/tools location.
- OWNERS file.
- New title section in README.md.

No-Try: true
Bug: chromium:1109770
Change-Id: Ie71752c0a37491a50500c49060a3c526716ef933
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2320330
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69164}
2020-07-31 11:34:39 +00:00

37 lines
802 B
JavaScript

// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Helper neuter function.
function nop() { return false; }
// Stubs for non-standard functions.
try { gc; } catch(e) {
this.gc = function () {
for (let i = 0; i < 10000; i++) {
let s = new String("AAAA" + Math.random());
}
}
}
try { uneval; } catch(e) { this.uneval = this.nop; }
try {
// For Chakra tests.
WScript;
} catch(e) {
this.WScript = new Proxy({}, {
get(target, name) {
switch (name) {
case 'Echo':
return print;
default:
return {};
}
}
});
}
try { this.alert = console.log; } catch(e) { }
try { this.print = console.log; } catch(e) { }