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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmltypesclassdescription.h"
#include "qmltypescreator.h"
#include <QtCore/qjsonarray.h>
static void collectExtraVersions(const QJsonObject *component, const QString &key,
QList<QTypeRevision> &extraVersions)
{
const QJsonArray &items = component->value(key).toArray();
for (const QJsonValue &item : items) {
const QJsonObject obj = item.toObject();
const auto revision = obj.find(QLatin1String("revision"));
if (revision != obj.end()) {
const auto extraVersion = QTypeRevision::fromEncodedVersion(revision.value().toInt());
if (!extraVersions.contains(extraVersion))
extraVersions.append(extraVersion);
}
}
}
const QJsonObject *QmlTypesClassDescription::findType(const QVector<QJsonObject> &types,
const QString &name)
{
static const QLatin1String qualifiedClassNameKey("qualifiedClassName");
auto it = std::lower_bound(types.begin(), types.end(), name,
[&](const QJsonObject &type, const QString &typeName) {
return type.value(qualifiedClassNameKey).toString() < typeName;
});
return (it != types.end() && it->value(qualifiedClassNameKey) == name) ? &(*it) : nullptr;
}
void QmlTypesClassDescription::collectSuperClasses(
const QJsonObject *classDef, const QVector<QJsonObject> &types,
const QVector<QJsonObject> &foreign, CollectMode mode, QTypeRevision defaultRevision)
{
const auto supers = classDef->value(QLatin1String("superClasses")).toArray();
for (const QJsonValue &superValue : supers) {
const QJsonObject superObject = superValue.toObject();
if (superObject[QLatin1String("access")].toString() == QLatin1String("public")) {
const QString superName = superObject[QLatin1String("name")].toString();
const CollectMode superMode = (mode == TopLevel) ? SuperClass : RelatedType;
if (const QJsonObject *other = findType(types, superName))
collect(other, types, foreign, superMode, defaultRevision);
else if (const QJsonObject *other = findType(foreign, superName))
collect(other, types, foreign, superMode, defaultRevision);
else // If we cannot locate a type for it, there is no point in recording the superClass
continue;
if (mode == TopLevel && superClass.isEmpty())
superClass = superName;
}
}
}
void QmlTypesClassDescription::collectInterfaces(const QJsonObject *classDef)
{
if (classDef->contains(QLatin1String("interfaces"))) {
const QJsonArray array = classDef->value(QLatin1String("interfaces")).toArray();
for (const QJsonValue &value : array) {
auto object = value.toArray()[0].toObject();
implementsInterfaces << object[QLatin1String("className")].toString();
}
}
}
void QmlTypesClassDescription::collectLocalAnonymous(
const QJsonObject *classDef, const QVector<QJsonObject> &types,
const QVector<QJsonObject> &foreign, QTypeRevision defaultRevision)
{
file = classDef->value(QLatin1String("inputFile")).toString();
resolvedClass = classDef;
className = classDef->value(QLatin1String("qualifiedClassName")).toString();
if (classDef->value(QStringLiteral("object")).toBool())
accessSemantics = QStringLiteral("reference");
else if (classDef->value(QStringLiteral("gadget")).toBool())
accessSemantics = QStringLiteral("value");
else
accessSemantics = QStringLiteral("none");
const auto classInfos = classDef->value(QLatin1String("classInfos")).toArray();
for (const QJsonValue &classInfo : classInfos) {
const QJsonObject obj = classInfo.toObject();
if (obj[QStringLiteral("name")].toString() == QStringLiteral("DefaultProperty"))
defaultProp = obj[obj[QStringLiteral("value")].toString()].toString();
}
collectInterfaces(classDef);
collectSuperClasses(classDef, types, foreign, TopLevel, defaultRevision);
}
void QmlTypesClassDescription::collect(
const QJsonObject *classDef, const QVector<QJsonObject> &types,
const QVector<QJsonObject> &foreign, CollectMode mode, QTypeRevision defaultRevision)
{
if (file.isEmpty())
file = classDef->value(QLatin1String("inputFile")).toString();
const auto classInfos = classDef->value(QLatin1String("classInfos")).toArray();
const QString classDefName = classDef->value(QLatin1String("className")).toString();
for (const QJsonValue &classInfo : classInfos) {
const QJsonObject obj = classInfo.toObject();
const QString name = obj[QLatin1String("name")].toString();
const QString value = obj[QLatin1String("value")].toString();
if (name == QLatin1String("DefaultProperty")) {
if (mode != RelatedType && defaultProp.isEmpty())
defaultProp = value;
} else if (name == QLatin1String("QML.AddedInVersion")) {
const QTypeRevision revision = QTypeRevision::fromEncodedVersion(value.toInt());
if (mode == TopLevel) {
addedInRevision = revision;
revisions.append(revision);
} else if (!elementName.isEmpty()) {
revisions.append(revision);
}
}
if (mode != TopLevel)
continue;
// These only apply to the original class
if (name == QLatin1String("QML.Element")) {
if (value == QLatin1String("auto"))
elementName = classDefName;
else if (value != QLatin1String("anonymous"))
elementName = value;
} else if (name == QLatin1String("QML.RemovedInVersion")) {
removedInRevision = QTypeRevision::fromEncodedVersion(value.toInt());
} else if (name == QLatin1String("QML.Creatable")) {
isCreatable = (value != QLatin1String("false"));
} else if (name == QLatin1String("QML.Attached")) {
attachedType = value;
collectRelated(value, types, foreign, defaultRevision);
} else if (name == QLatin1String("QML.Extended")) {
extensionType = value;
collectRelated(value, types, foreign, defaultRevision);
} else if (name == QLatin1String("QML.Sequence")) {
sequenceValueType = value;
collectRelated(value, types, foreign, defaultRevision);
} else if (name == QLatin1String("QML.Singleton")) {
if (value == QLatin1String("true"))
isSingleton = true;
} else if (name == QLatin1String("QML.Foreign")) {
if (const QJsonObject *other = findType(foreign, value)) {
classDef = other;
// Foreign type can have a default property or an attached types
const auto classInfos = classDef->value(QLatin1String("classInfos")).toArray();
for (const QJsonValue &classInfo : classInfos) {
const QJsonObject obj = classInfo.toObject();
const QString foreignName = obj[QLatin1String("name")].toString();
const QString foreignValue = obj[QLatin1String("value")].toString();
if (defaultProp.isEmpty() && foreignName == QLatin1String("DefaultProperty")) {
defaultProp = foreignValue;
} else if (foreignName == QLatin1String("QML.Attached")) {
attachedType = foreignValue;
collectRelated(foreignValue, types, foreign, defaultRevision);
} else if (foreignName == QLatin1String("QML.Extended")) {
extensionType = foreignValue;
collectRelated(foreignValue, types, foreign, defaultRevision);
} else if (foreignName == QLatin1String("QML.Sequence")) {
sequenceValueType = foreignValue;
collectRelated(foreignValue, types, foreign, defaultRevision);
}
}
} else {
className = value;
classDef = nullptr;
}
} else if (name == QLatin1String("QML.Root")) {
isRootClass = true;
}
}
if (classDef) {
if (mode == RelatedType || !elementName.isEmpty()) {
collectExtraVersions(classDef, QString::fromLatin1("properties"), revisions);
collectExtraVersions(classDef, QString::fromLatin1("slots"), revisions);
collectExtraVersions(classDef, QString::fromLatin1("methods"), revisions);
collectExtraVersions(classDef, QString::fromLatin1("signals"), revisions);
}
collectSuperClasses(classDef, types, foreign, mode, defaultRevision);
}
if (mode != TopLevel)
return;
if (classDef)
collectInterfaces(classDef);
if (!addedInRevision.isValid()) {
revisions.append(defaultRevision);
addedInRevision = defaultRevision;
} else if (addedInRevision < defaultRevision) {
revisions.append(defaultRevision);
}
std::sort(revisions.begin(), revisions.end());
const auto end = std::unique(revisions.begin(), revisions.end());
revisions.erase(QList<QTypeRevision>::const_iterator(end), revisions.constEnd());
resolvedClass = classDef;
if (className.isEmpty() && classDef)
className = classDef->value(QLatin1String("qualifiedClassName")).toString();
if (!sequenceValueType.isEmpty()) {
isCreatable = false;
accessSemantics = QLatin1String("sequence");
} else if (classDef && classDef->value(QLatin1String("object")).toBool()) {
accessSemantics = QLatin1String("reference");
} else {
isCreatable = false;
// If no classDef, we assume it's a value type defined by the foreign/extended trick.
// Objects and namespaces always have metaobjects and therefore classDefs.
accessSemantics = (!classDef || classDef->value(QLatin1String("gadget")).toBool())
? QLatin1String("value")
: QLatin1String("none");
}
}
void QmlTypesClassDescription::collectRelated(const QString &related,
const QVector<QJsonObject> &types,
const QVector<QJsonObject> &foreign,
QTypeRevision defaultRevision)
{
if (const QJsonObject *other = findType(types, related))
collect(other, types, foreign, RelatedType, defaultRevision);
else if (const QJsonObject *other = findType(foreign, related))
collect(other, types, foreign, RelatedType, defaultRevision);
}
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