1 files changed, 118 insertions, 0 deletions
diff --git a/src/qml/qml/qqmlscriptdata.cpp b/src/qml/qml/qqmlscriptdata.cpp
new file mode 100644
index 0000000000..9337f25c6e
--- /dev/null
+++ b/src/qml/qml/qqmlscriptdata.cpp
@@ -0,0 +1,118 @@
+// 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