ladybird/Meta/Fuzzers/FuzzJs.cpp
Andreas Kling 7025dd1fa7 Libraries: Parse JS strings from UTF-16
Thread UTF-16 string input through JSON, script parsing, Date parsing,
Intl option parsing, Temporal parsing, and the helper library boundaries
that feed those parsers. Preserve ASCII fast paths where the source data
is known to be ASCII.
2026-06-22 19:51:25 +02:00

32 lines
1 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/StringView.h>
#include <AK/Utf16String.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/VM.h>
#include <LibJS/Script.h>
#include <stddef.h>
#include <stdint.h>
extern "C" int LLVMFuzzerTestOneInput(uint8_t const* data, size_t size)
{
AK::set_debug_enabled(false);
auto js = StringView(static_cast<unsigned char const*>(data), size);
// FIXME: https://github.com/SerenityOS/serenity/issues/17899
if (!Utf8View(js).validate())
return 0;
auto source_text = Utf16String::from_utf8_without_validation(js);
auto vm = JS::VM::create();
auto root_execution_context = JS::create_simple_execution_context<JS::GlobalObject>(*vm);
auto& realm = *root_execution_context->realm;
auto parse_result = JS::Script::parse(source_text.utf16_view(), realm);
if (!parse_result.is_error())
(void)vm->run(parse_result.value());
return 0;
}