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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/at_exit.h"
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/i18n/icu_util.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_executor.h"
#include "base/task/single_thread_task_runner.h"
#include "base/task/thread_pool/thread_pool_instance.h"
#include "gin/array_buffer.h"
#include "gin/modules/console.h"
#include "gin/object_template_builder.h"
#include "gin/public/isolate_holder.h"
#include "gin/shell_runner.h"
#include "gin/try_catch.h"
#include "gin/v8_initializer.h"
namespace gin {
namespace {
std::string Load(const base::FilePath& path) {
std::string source;
if (!ReadFileToString(path, &source))
LOG(FATAL) << "Unable to read " << path.LossyDisplayName();
return source;
}
void Run(base::WeakPtr<Runner> runner, const base::FilePath& path) {
if (!runner)
return;
Runner::Scope scope(runner.get());
runner->Run(Load(path), path.AsUTF8Unsafe());
}
class GinShellRunnerDelegate : public ShellRunnerDelegate {
public:
GinShellRunnerDelegate() = default;
GinShellRunnerDelegate(const GinShellRunnerDelegate&) = delete;
GinShellRunnerDelegate& operator=(const GinShellRunnerDelegate&) = delete;
v8::Local<v8::ObjectTemplate> GetGlobalTemplate(
ShellRunner* runner,
v8::Isolate* isolate) override {
v8::Local<v8::ObjectTemplate> templ =
ObjectTemplateBuilder(isolate).Build();
gin::Console::Register(isolate, templ);
return templ;
}
void UnhandledException(ShellRunner* runner, TryCatch& try_catch) override {
LOG(ERROR) << try_catch.GetStackTrace();
}
};
} // namespace
} // namespace gin
int main(int argc, char** argv) {
base::AtExitManager at_exit;
base::CommandLine::Init(argc, argv);
base::i18n::InitializeICU();
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
gin::V8Initializer::LoadV8Snapshot();
#endif
// Initialize the base::FeatureList since IsolateHolder can depend on it.
base::FeatureList::SetInstance(base::WrapUnique(new base::FeatureList));
base::SingleThreadTaskExecutor main_thread_task_executor;
base::ThreadPoolInstance::CreateAndStartWithDefaultParams("gin");
{
gin::IsolateHolder::Initialize(gin::IsolateHolder::kStrictMode,
gin::ArrayBufferAllocator::SharedInstance());
gin::IsolateHolder instance(
base::SingleThreadTaskRunner::GetCurrentDefault(),
gin::IsolateHolder::IsolateType::kBlinkMainThread);
gin::GinShellRunnerDelegate delegate;
gin::ShellRunner runner(&delegate, instance.isolate());
{
gin::Runner::Scope scope(&runner);
runner.GetContextHolder()
->isolate()
->SetCaptureStackTraceForUncaughtExceptions(true);
}
base::CommandLine::StringVector args =
base::CommandLine::ForCurrentProcess()->GetArgs();
for (base::CommandLine::StringVector::const_iterator it = args.begin();
it != args.end(); ++it) {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(gin::Run, runner.GetWeakPtr(), base::FilePath(*it)));
}
base::RunLoop().RunUntilIdle();
}
// gin::IsolateHolder waits for tasks running in ThreadPool in its
// destructor and thus must be destroyed before ThreadPool starts skipping
// CONTINUE_ON_SHUTDOWN tasks.
base::ThreadPoolInstance::Get()->Shutdown();
return 0;
}
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