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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <private/qqmlscriptdata_p.h>
#include <private/qqmlcontext_p.h>
#include <private/qqmlengine_p.h>
#include <private/qqmlscriptblob_p.h>
#include <private/qv4engine_p.h>
#include <private/qv4scopedvalue_p.h>
#include <private/qv4object_p.h>
#include <private/qv4qmlcontext_p.h>
#include <private/qv4module_p.h>
QT_BEGIN_NAMESPACE
QQmlRefPointer<QQmlContextData> QQmlScriptData::qmlContextDataForContext(
const QQmlRefPointer<QQmlContextData> &parentQmlContextData)
{
Q_ASSERT(parentQmlContextData && parentQmlContextData->engine());
if (!m_precompiledScript || m_precompiledScript->isESModule())
return nullptr;
QQmlRefPointer<QQmlContextData> qmlContextData = m_precompiledScript->isSharedLibrary()
? QQmlContextData::createRefCounted(QQmlRefPointer<QQmlContextData>())
: QQmlContextData::createRefCounted(parentQmlContextData);
qmlContextData->setInternal(true);
qmlContextData->setJSContext(true);
if (m_precompiledScript->isSharedLibrary())
qmlContextData->setPragmaLibraryContext(true);
else
qmlContextData->setPragmaLibraryContext(parentQmlContextData->isPragmaLibraryContext());
qmlContextData->setBaseUrl(url);
qmlContextData->setBaseUrlString(urlString);
// For backward compatibility, if there are no imports, we need to use the
// imports from the parent context. See QTBUG-17518.
if (!typeNameCache->isEmpty()) {
qmlContextData->setImports(typeNameCache);
} else if (!m_precompiledScript->isSharedLibrary()) {
qmlContextData->setImports(parentQmlContextData->imports());
qmlContextData->setImportedScripts(parentQmlContextData->importedScripts());
}
if (m_precompiledScript->isSharedLibrary())
qmlContextData->setEngine(parentQmlContextData->engine()); // Fix for QTBUG-21620
QV4::ExecutionEngine *v4 = parentQmlContextData->engine()->handle();
QV4::Scope scope(v4);
QV4::ScopedObject scriptsArray(scope);
if (qmlContextData->importedScripts().isNullOrUndefined()) {
scriptsArray = v4->newArrayObject(scripts.size());
qmlContextData->setImportedScripts(
QV4::PersistentValue(v4, scriptsArray.asReturnedValue()));
} else {
scriptsArray = qmlContextData->importedScripts().valueRef();
}
QV4::ScopedValue v(scope);
for (int ii = 0; ii < scripts.size(); ++ii) {
v = scripts.at(ii)->scriptData()->scriptValueForContext(qmlContextData);
scriptsArray->put(ii, v);
}
return qmlContextData;
}
QV4::ReturnedValue QQmlScriptData::scriptValueForContext(
const QQmlRefPointer<QQmlContextData> &parentQmlContextData)
{
if (m_loaded)
return m_value.value();
Q_ASSERT(parentQmlContextData && parentQmlContextData->engine());
QV4::ExecutionEngine *v4 = parentQmlContextData->engine()->handle();
QV4::Scope scope(v4);
QV4::Scoped<QV4::QmlContext> qmlExecutionContext(scope);
if (auto qmlContextData = qmlContextDataForContext(parentQmlContextData)) {
qmlExecutionContext = QV4::QmlContext::create(v4->rootContext(), std::move(qmlContextData),
/* scopeObject: */ nullptr);
}
QV4::Scoped<QV4::Module> module(
scope,
v4->executableCompilationUnit(QQmlRefPointer<QV4::CompiledData::CompilationUnit>(
m_precompiledScript))->instantiate());
if (module) {
if (qmlExecutionContext) {
module->d()->scope->outer.set(v4, qmlExecutionContext->d());
qmlExecutionContext->d()->qml()->module.set(v4, module->d());
}
module->evaluate();
}
if (v4->hasException) {
QQmlError error = v4->catchExceptionAsQmlError();
if (error.isValid())
QQmlEnginePrivate::get(v4)->warning(error);
}
QV4::ScopedValue value(scope);
if (qmlExecutionContext)
value = qmlExecutionContext->d()->qml();
else if (module)
value = module->d();
if (m_precompiledScript->isSharedLibrary() || m_precompiledScript->isESModule()) {
m_loaded = true;
m_value.set(v4, value);
}
return value->asReturnedValue();
}
QT_END_NAMESPACE
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