v8/test/fuzzer/parser.cc
Manos Koukoutos 2a0584bfe8 [test] Remove some unused includes (2)
Mostly test/fuzzer, test/inspector, test/unittests.

Bug: v8:13006
Change-Id: I825efa5d72a224bb3cb9f86a9fac8763e9dbd1cf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3769696
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81799}
2022-07-19 08:55:55 +00:00

102 lines
3.4 KiB
C++

// Copyright 2016 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.
#include <limits.h>
#include <stddef.h>
#include <stdint.h>
#include <cctype>
#include <list>
#include "include/v8-context.h"
#include "include/v8-exception.h"
#include "include/v8-isolate.h"
#include "include/v8-local-handle.h"
#include "src/execution/isolate.h"
#include "src/parsing/parse-info.h"
#include "src/parsing/parsing.h"
#include "test/fuzzer/fuzzer-support.h"
bool IsValidInput(const uint8_t* data, size_t size) {
// Ignore too long inputs as they tend to find OOM or timeouts, not real bugs.
if (size > 2048) return false;
std::vector<char> parentheses;
const char* ptr = reinterpret_cast<const char*>(data);
for (size_t i = 0; i != size; ++i) {
// Check that all characters in the data are valid.
if (!std::isspace(ptr[i]) && !std::isprint(ptr[i])) return false;
// Check balance of parentheses in the data.
switch (ptr[i]) {
case '(':
case '[':
case '{':
parentheses.push_back(ptr[i]);
break;
case ')':
if (parentheses.empty() || parentheses.back() != '(') return false;
parentheses.pop_back();
break;
case ']':
if (parentheses.empty() || parentheses.back() != '[') return false;
parentheses.pop_back();
break;
case '}':
if (parentheses.empty() || parentheses.back() != '{') return false;
parentheses.pop_back();
break;
default:
break;
}
}
return parentheses.empty();
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
if (!IsValidInput(data, size)) {
return 0;
}
v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get();
v8::Isolate* isolate = support->GetIsolate();
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
v8::Context::Scope context_scope(support->GetContext());
v8::TryCatch try_catch(isolate);
v8::internal::Isolate* i_isolate =
reinterpret_cast<v8::internal::Isolate*>(isolate);
v8::internal::Factory* factory = i_isolate->factory();
if (size > INT_MAX) return 0;
v8::internal::MaybeHandle<v8::internal::String> source =
factory->NewStringFromOneByte(
v8::base::Vector<const uint8_t>(data, static_cast<int>(size)));
if (source.is_null()) return 0;
v8::internal::Handle<v8::internal::Script> script =
factory->NewScript(source.ToHandleChecked());
v8::internal::UnoptimizedCompileState state;
v8::internal::ReusableUnoptimizedCompileState reusable_state(i_isolate);
v8::internal::UnoptimizedCompileFlags flags =
v8::internal::UnoptimizedCompileFlags::ForScriptCompile(i_isolate,
*script);
v8::internal::ParseInfo info(i_isolate, flags, &state, &reusable_state);
if (!v8::internal::parsing::ParseProgram(
&info, script, i_isolate, i::parsing::ReportStatisticsMode::kYes)) {
info.pending_error_handler()->PrepareErrors(i_isolate,
info.ast_value_factory());
info.pending_error_handler()->ReportErrors(i_isolate, script);
i_isolate->OptionalRescheduleException(true);
}
isolate->RequestGarbageCollectionForTesting(
v8::Isolate::kFullGarbageCollection);
return 0;
}