262 lines
8.8 KiB
C++
262 lines
8.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the V4VM module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "private/qv4object_p.h"
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#include "private/qv4runtime_p.h"
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#include "private/qv4functionobject_p.h"
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#include "private/qv4errorobject_p.h"
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#include "private/qv4globalobject_p.h"
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#include "private/qv4codegen_p.h"
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#if QT_CONFIG(qml_interpreter)
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#include "private/qv4isel_moth_p.h"
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#include "private/qv4vme_moth_p.h"
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#endif
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#include "private/qv4objectproto_p.h"
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#include "private/qv4isel_p.h"
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#include "private/qv4mm_p.h"
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#include "private/qv4context_p.h"
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#include "private/qv4script_p.h"
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#include "private/qv4string_p.h"
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#ifdef V4_ENABLE_JIT
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# include "private/qv4isel_masm_p.h"
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#else
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QT_REQUIRE_CONFIG(qml_interpreter);
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#endif // V4_ENABLE_JIT
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#include <QtCore/QCoreApplication>
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#include <QtCore/QFile>
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#include <QtCore/QFileInfo>
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#include <QtCore/QDateTime>
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#include <private/qqmljsengine_p.h>
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#include <private/qqmljslexer_p.h>
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#include <private/qqmljsparser_p.h>
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#include <private/qqmljsast_p.h>
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#include <iostream>
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namespace builtins {
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using namespace QV4;
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struct Print: FunctionObject
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{
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struct Data : Heap::FunctionObject {
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void init(ExecutionContext *scope)
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{
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Heap::FunctionObject::init(scope, QStringLiteral("print"));
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}
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};
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V4_OBJECT(FunctionObject)
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static void call(const Managed *, Scope &scope, CallData *callData)
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{
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for (int i = 0; i < callData->argc; ++i) {
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QString s = callData->args[i].toQStringNoThrow();
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if (i)
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std::cout << ' ';
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std::cout << qPrintable(s);
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}
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std::cout << std::endl;
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scope.result = Encode::undefined();
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}
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};
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DEFINE_OBJECT_VTABLE(Print);
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struct GC: public FunctionObject
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{
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struct Data : Heap::FunctionObject {
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void init(ExecutionContext *scope)
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{
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Heap::FunctionObject::init(scope, QStringLiteral("gc"));
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}
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};
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V4_OBJECT(FunctionObject)
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static void call(const Managed *m, Scope &scope, CallData *)
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{
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static_cast<const GC *>(m)->engine()->memoryManager->runGC();
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scope.result = Encode::undefined();
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}
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};
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DEFINE_OBJECT_VTABLE(GC);
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} // builtins
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static void showException(QV4::ExecutionContext *ctx, const QV4::Value &exception, const QV4::StackTrace &trace)
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{
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QV4::Scope scope(ctx);
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QV4::ScopedValue ex(scope, exception);
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QV4::ErrorObject *e = ex->as<QV4::ErrorObject>();
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if (!e) {
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std::cerr << "Uncaught exception: " << qPrintable(ex->toQString()) << std::endl;
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} else {
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QV4::ScopedString m(scope, scope.engine->newString(QStringLiteral("message")));
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QV4::ScopedValue message(scope, e->get(m));
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std::cerr << "Uncaught exception: " << qPrintable(message->toQStringNoThrow()) << std::endl;
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}
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for (const QV4::StackFrame &frame : trace) {
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std::cerr << " at " << qPrintable(frame.function) << " (" << qPrintable(frame.source);
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if (frame.line >= 0)
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std::cerr << ':' << frame.line;
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std::cerr << ')' << std::endl;
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}
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}
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int main(int argc, char *argv[])
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{
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QCoreApplication app(argc, argv);
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QStringList args = app.arguments();
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args.removeFirst();
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enum {
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use_masm,
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use_moth
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} mode;
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#ifdef V4_ENABLE_JIT
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mode = use_masm;
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#else
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mode = use_moth;
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#endif
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bool runAsQml = false;
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bool cache = false;
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if (!args.isEmpty()) {
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if (args.first() == QLatin1String("--jit")) {
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mode = use_masm;
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args.removeFirst();
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}
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#if QT_CONFIG(qml_interpreter)
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if (args.first() == QLatin1String("--interpret")) {
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mode = use_moth;
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args.removeFirst();
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}
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#endif
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if (args.first() == QLatin1String("--qml")) {
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runAsQml = true;
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args.removeFirst();
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}
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if (args.first() == QLatin1String("--cache")) {
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cache = true;
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args.removeFirst();
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}
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if (args.first() == QLatin1String("--help")) {
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std::cerr << "Usage: qmljs [|--jit|--interpret|--qml] file..." << std::endl;
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return EXIT_SUCCESS;
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}
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}
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switch (mode) {
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case use_masm:
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case use_moth: {
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QV4::EvalISelFactory* iSelFactory = 0;
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if (mode == use_moth) {
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#if QT_CONFIG(qml_interpreter)
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iSelFactory = new QV4::Moth::ISelFactory;
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#endif
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#ifdef V4_ENABLE_JIT
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} else {
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iSelFactory = new QV4::JIT::ISelFactory;
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#endif // V4_ENABLE_JIT
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}
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QV4::ExecutionEngine vm(iSelFactory);
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QV4::Scope scope(&vm);
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QV4::ScopedContext ctx(scope, vm.rootContext());
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QV4::ScopedObject print(scope, vm.memoryManager->allocObject<builtins::Print>(vm.rootContext()));
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vm.globalObject->put(QV4::ScopedString(scope, vm.newIdentifier(QStringLiteral("print"))).getPointer(), print);
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QV4::ScopedObject gc(scope, vm.memoryManager->allocObject<builtins::GC>(ctx));
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vm.globalObject->put(QV4::ScopedString(scope, vm.newIdentifier(QStringLiteral("gc"))).getPointer(), gc);
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for (const QString &fn : qAsConst(args)) {
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QFile file(fn);
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if (file.open(QFile::ReadOnly)) {
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QScopedPointer<QV4::Script> script;
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if (cache && QFile::exists(fn + QLatin1Char('c'))) {
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QQmlRefPointer<QV4::CompiledData::CompilationUnit> unit = iSelFactory->createUnitForLoading();
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QString error;
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if (unit->loadFromDisk(QUrl::fromLocalFile(fn), iSelFactory, &error)) {
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script.reset(new QV4::Script(&vm, nullptr, unit));
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} else {
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std::cout << "Error loading" << qPrintable(fn) << "from disk cache:" << qPrintable(error) << std::endl;
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}
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}
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if (!script) {
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const QString code = QString::fromUtf8(file.readAll());
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file.close();
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script.reset(new QV4::Script(ctx, code, fn));
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script->parseAsBinding = runAsQml;
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script->parse();
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}
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QV4::ScopedValue result(scope);
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if (!scope.engine->hasException) {
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const auto unit = script->compilationUnit;
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if (cache && unit && !(unit->data->flags & QV4::CompiledData::Unit::StaticData)) {
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if (unit->data->sourceTimeStamp == 0) {
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const_cast<QV4::CompiledData::Unit*>(unit->data)->sourceTimeStamp = QFileInfo(fn).lastModified().toMSecsSinceEpoch();
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}
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QString saveError;
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if (!unit->saveToDisk(QUrl::fromLocalFile(fn), &saveError)) {
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std::cout << "Error saving JS cache file: " << qPrintable(saveError) << std::endl;
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}
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}
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result = script->run();
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}
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if (scope.engine->hasException) {
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QV4::StackTrace trace;
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QV4::ScopedValue ex(scope, scope.engine->catchException(&trace));
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showException(ctx, ex, trace);
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return EXIT_FAILURE;
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}
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if (!result->isUndefined()) {
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if (! qgetenv("SHOW_EXIT_VALUE").isEmpty())
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std::cout << "exit value: " << qPrintable(result->toQString()) << std::endl;
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}
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} else {
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std::cerr << "Error: cannot open file " << fn.toUtf8().constData() << std::endl;
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return EXIT_FAILURE;
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}
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}
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vm.memoryManager->dumpStats();
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} return EXIT_SUCCESS;
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} // switch (mode)
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}
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