1166 lines
33 KiB
C++
1166 lines
33 KiB
C++
#include <QCommandLineParser>
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#include <QFile>
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#include <QDir>
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#include <QDebug>
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QJsonArray>
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using std::endl;
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QTextStream out(stdout);
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QTextStream err(stderr);
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enum ObjectType {
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ObjectTypeObject,
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ObjectTypeList
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};
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enum class BindingType {
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Bool,
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Int,
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QString,
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QByteArray,
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QVariant
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};
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struct BindingTypeProperties {
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QString name;
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QString cppSetType;
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QString cSetType;
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QString rustType;
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QString rustTypeInit;
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bool isComplex() const {
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return name.startsWith("Q");
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}
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};
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BindingTypeProperties simpleType(const char* name, const char* init) {
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return {
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.name = name,
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.cppSetType = name,
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.cSetType = name,
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.rustType = name,
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.rustTypeInit = init
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};
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}
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const QMap<BindingType, BindingTypeProperties>& bindingTypeProperties() {
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static QMap<BindingType, BindingTypeProperties> p;
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if (p.empty()) {
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QMap<BindingType, BindingTypeProperties> f;
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f.insert(BindingType::Bool, simpleType("bool", "true"));
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f.insert(BindingType::Int, {
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.name = "int",
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.cppSetType = "int",
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.cSetType = "int",
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.rustType = "c_int",
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.rustTypeInit = "0"
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});
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f.insert(BindingType::QString, {
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.name = "QString",
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.cppSetType = "const QString&",
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.cSetType = "qstring_t",
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.rustType = "String",
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.rustTypeInit = "String::new()"
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});
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f.insert(BindingType::QByteArray, {
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.name = "QByteArray",
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.cppSetType = "const QByteArray&",
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.cSetType = "qbytearray_t",
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.rustType = "Vec<u8>",
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.rustTypeInit = "Vec::new()"
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});
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f.insert(BindingType::QVariant, {
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.name = "QVariant",
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.cppSetType = "const QVariant&",
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.cSetType = "qvariant_t",
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.rustType = "Variant",
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.rustTypeInit = "Variant::None"
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});
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p = f;
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}
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return p;
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}
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struct Property {
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QString name;
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BindingTypeProperties type;
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bool write;
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};
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struct Role {
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QString name;
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QString value;
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};
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struct Object {
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QString name;
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ObjectType type;
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QList<Property> properties;
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QList<Role> roles;
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};
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struct Configuration {
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QFileInfo hFile;
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QFileInfo cppFile;
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QDir rustdir;
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QString interfaceModule;
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QString implementationModule;
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QString typesModule;
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QList<Object> objects;
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bool overwriteImplementation;
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};
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BindingTypeProperties parseBindingType(const QString& value) {
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QMapIterator<BindingType, BindingTypeProperties> i(bindingTypeProperties());
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while (i.hasNext()) {
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i.next();
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if (value == i.value().name) {
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return i.value();
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}
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}
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err << QCoreApplication::translate("main",
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"'%1' is not a supported type.\n").arg(value);
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err.flush();
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exit(1);
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}
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Property
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parseProperty(const QJsonObject& json) {
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Property p;
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p.name = json.value("name").toString();
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p.type = parseBindingType(json.value("type").toString());
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p.write = json.value("write").toBool();
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return p;
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}
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Role
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parseRole(const QJsonObject& json) {
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Role r;
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r.name = json.value("name").toString();
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r.value = json.value("value").toString();
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return r;
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}
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Object
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parseObject(const QJsonObject& json) {
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Object o;
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o.name = json.value("name").toString();
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QString type = json.value("type").toString();
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if (type == "List") {
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o.type = ObjectTypeList;
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} else {
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o.type = ObjectTypeObject;
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}
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for (const QJsonValue& val: json.value("properties").toArray()) {
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o.properties.append(parseProperty(val.toObject()));
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}
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for (const QJsonValue& val: json.value("roles").toArray()) {
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o.roles.append(parseRole(val.toObject()));
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}
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return o;
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}
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Configuration
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parseConfiguration(const QString& path) {
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QFile configurationFile(path);
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const QDir base = QFileInfo(configurationFile).dir();
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if (!configurationFile.open(QIODevice::ReadOnly)) {
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err << QCoreApplication::translate("main",
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"Cannot read %1.\n").arg(configurationFile.fileName());
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err.flush();
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exit(1);
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}
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const QByteArray data(configurationFile.readAll());
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QJsonParseError error;
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const QJsonDocument doc(QJsonDocument::fromJson(data, &error));
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if (error.error != QJsonParseError::NoError) {
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err << error.errorString();
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err.flush();
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exit(1);
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}
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const QJsonObject o = doc.object();
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Configuration c;
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c.cppFile = QFileInfo(base, o.value("cppFile").toString());
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QDir(c.cppFile.dir()).mkpath(".");
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c.hFile = QFileInfo(c.cppFile.dir(), c.cppFile.completeBaseName() + ".h");
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for (const QJsonValue& val: o.value("objects").toArray()) {
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c.objects.append(parseObject(val.toObject()));
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}
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const QJsonObject rust = o.value("rust").toObject();
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c.rustdir = QDir(base.filePath(rust.value("dir").toString()));
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c.interfaceModule = rust.value("interfaceModule").toString();
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c.implementationModule = rust.value("implementationModule").toString();
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c.typesModule = rust.value("typesModule").toString();
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return c;
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}
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QString upperInitial(const QString& name) {
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return name.left(1).toUpper() + name.mid(1);
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}
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QString snakeCase(const QString& name) {
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return name.left(1).toLower() + name.mid(1)
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.replace(QRegExp("([A-Z])"), "_\\1").toLower();
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}
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QString writeProperty(const QString& name) {
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return "WRITE set" + upperInitial(name) + " ";
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}
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QString cGetType(const Property& p) {
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return p.type.name + "*, " + p.type.name.toLower() + "_set";
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}
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QString baseType(const Object& o) {
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if (o.type != ObjectTypeObject) {
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return "QAbstractItemModel";
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}
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return "QObject";
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}
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void writeHeaderItemModel(QTextStream& h, const Object&) {
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h << QString(R"(
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int columnCount(const QModelIndex &parent) const;
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QVariant data(const QModelIndex &index, int role) const;
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QModelIndex index(int row, int column, const QModelIndex &parent) const;
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QModelIndex parent(const QModelIndex &index) const;
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int rowCount(const QModelIndex &parent) const;
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QHash<int, QByteArray> roleNames() const;
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signals:
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void newDataReady();
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)");
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}
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void writeCppListModel(QTextStream& cpp, const Object& o) {
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const QString lcname(snakeCase(o.name));
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cpp << "enum " << o.name << "Role {\n";
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for (auto role: o.roles) {
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cpp << " " << o.name << "Role" << role.name << " = " << role.value << ",\n";
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}
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cpp << "};\n\n";
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cpp << "extern \"C\" {\n";
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for (auto role: o.roles) {
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cpp << QString(" void %2_data_%3(%1Interface*, int, QVariant*, qvariant_set);\n")
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.arg(o.name, lcname, snakeCase(role.name));
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}
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cpp << QString(R"(
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int %2_row_count(%1Interface*, qmodelindex_t parent);
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}
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int %1::columnCount(const QModelIndex &parent) const
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{
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return (parent.isValid()) ? 0 : 1;
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}
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int %1::rowCount(const QModelIndex &parent) const
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{
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return (parent.isValid()) ? 0 : %2_row_count(d, parent);
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}
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QModelIndex %1::index(int row, int column, const QModelIndex &parent) const
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{
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if (!parent.isValid() && column == 0) {
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return createIndex(row, 0, (quintptr)0);
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}
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return QModelIndex();
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}
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QModelIndex %1::parent(const QModelIndex &) const
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{
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return QModelIndex();
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}
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QVariant %1::data(const QModelIndex &index, int role) const
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{
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QVariant v;
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switch ((%1Role)role) {
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)").arg(o.name, lcname);
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for (auto role: o.roles) {
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cpp << QString(" case %1Role%2:\n").arg(o.name, role.name);
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cpp << QString(" %1_data_%2(d, index.row(), &v, set_qvariant);\n")
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.arg(lcname, snakeCase(role.name));
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cpp << " break;\n";
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}
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cpp << " }\n return v;\n}\n";
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cpp << "QHash<int, QByteArray> " << o.name << "::roleNames() const {\n";
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cpp << " QHash<int, QByteArray> names;\n";
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for (auto role: o.roles) {
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cpp << " names.insert(" << role.value << ", \"" << role.name << "\");\n";
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}
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cpp << " return names;\n";
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cpp << "}";
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}
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void writeHeaderObject(QTextStream& h, const Object& o) {
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h << QString(R"(
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class %1Interface;
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class %1 : public %3
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{
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Q_OBJEC%2
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%1Interface * const d;
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)").arg(o.name, "T", baseType(o));
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for (auto p: o.properties) {
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h << QString(" Q_PROPERTY(%1 %2 READ %2 %3NOTIFY %2Changed FINAL)")
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.arg(p.type.name, p.name,
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p.write ? writeProperty(p.name) :"") << endl;
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}
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h << QString(R"(public:
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explicit %1(QObject *parent = nullptr);
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~%1();
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)").arg(o.name);
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for (auto p: o.properties) {
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h << " " << p.type.name << " " << p.name << "() const;" << endl;
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if (p.write) {
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h << " void set" << upperInitial(p.name) << "(" << p.type.cppSetType << " v);" << endl;
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}
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}
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if (baseType(o) == "QAbstractItemModel") {
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writeHeaderItemModel(h, o);
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}
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h << "signals:" << endl;
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for (auto p: o.properties) {
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h << " void " << p.name << "Changed();" << endl;
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}
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h << "private:" << endl;
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for (auto p: o.properties) {
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h << " " << p.type.name << " m_" << p.name << ";" << endl;
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}
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h << "};" << endl;
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}
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void writeObjectCDecl(QTextStream& cpp, const Object& o) {
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const QString lcname(snakeCase(o.name));
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cpp << QString(" %1Interface* %2_new(%1*").arg(o.name, lcname);
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for (const Property& p: o.properties) {
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cpp << QString(", void (*)(%1*)").arg(o.name);
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}
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if (o.type == ObjectTypeList) {
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cpp << QString(R"(,
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void (*)(%1*, int, int),
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void (*)(%1*),
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void (*)(%1*, int, int),
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void (*)(%1*))").arg(o.name);
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}
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cpp << ");" << endl;
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cpp << QString(" void %2_free(%1Interface*);").arg(o.name, lcname)
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<< endl;
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for (const Property& p: o.properties) {
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const QString base = QString("%1_%2").arg(lcname, snakeCase(p.name));
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if (p.type.isComplex()) {
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cpp << QString(" void %2_get(%1Interface*, %3);")
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.arg(o.name, base, cGetType(p)) << endl;
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} else {
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cpp << QString(" %3 %2_get(%1Interface*);")
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.arg(o.name, base, p.type.name) << endl;
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}
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if (p.write) {
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cpp << QString(" void %1_set(void*, %2);")
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.arg(base, p.type.cSetType) << endl;
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}
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}
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}
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void writeCppObject(QTextStream& cpp, const Object& o) {
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const QString lcname(snakeCase(o.name));
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cpp << QString("%1::%1(QObject *parent):\n %2(parent),")
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.arg(o.name, baseType(o)) << endl;
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cpp << QString(" d(%1_new(this").arg(lcname);
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for (const Property& p: o.properties) {
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cpp << QString(",\n [](%1* o) { emit o->%2Changed(); }")
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.arg(o.name, p.name);
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}
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if (o.type == ObjectTypeList) {
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cpp << QString(R"(,
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[](%1* o, int first, int last) {
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emit o->beginInsertRows(QModelIndex(), first, last);
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},
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[](%1* o) {
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emit o->endInsertRows();
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},
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[](%1* o, int first, int last) {
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emit o->beginRemoveRows(QModelIndex(), first, last);
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},
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[](%1* o) {
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emit o->endRemoveRows();
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}
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)").arg(o.name);
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}
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cpp << QString(R"()) {}
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%1::~%1() {
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%2_free(d);
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}
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)").arg(o.name, lcname);
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for (const Property& p: o.properties) {
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const QString base = QString("%1_%2").arg(lcname, snakeCase(p.name));
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cpp << QString("%3 %1::%2() const\n{\n").arg(o.name, p.name, p.type.name);
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if (p.type.isComplex()) {
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cpp << " " << p.type.name << " v;\n";
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cpp << " " << base << "_get(d, &v, set_" << p.type.name.toLower()
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<< ");\n";
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cpp << " return v;\n}\n";
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} else {
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cpp << QString(" return %1_get(d);\n}\n").arg(base);
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}
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if (p.write) {
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cpp << "void " << o.name << "::set" << upperInitial(p.name) << "(" << p.type.cppSetType << " v) {" << endl;
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if (p.type.name == "QVariant") {
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cpp << QString(" variant(v, d, %1_set);").arg(base) << endl;
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} else {
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cpp << QString(" %1_set(d, v);").arg(base) << endl;
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}
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cpp << "}" << endl;
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}
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}
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if (o.type == ObjectTypeList) {
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writeCppListModel(cpp, o);
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}
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}
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|
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// Only write a file if it is different
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class DifferentFileWriter {
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public:
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const QString path;
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QByteArray buffer;
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bool overwrite;
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DifferentFileWriter(const QString& p, bool o = true) :path(p), overwrite(o)
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{
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}
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~DifferentFileWriter() {
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const QByteArray old = read();
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if (old != buffer && (old.isNull() || overwrite)) {
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write();
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}
|
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}
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|
QByteArray read() const {
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|
QByteArray content;
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|
QFile file(path);
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|
if (file.open(QIODevice::ReadOnly)) {
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content = file.readAll();
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}
|
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return content;
|
|
}
|
|
void write() const {
|
|
QFile file(path);
|
|
if (!file.open(QIODevice::WriteOnly)) {
|
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err << QCoreApplication::translate("main",
|
|
"Cannot write %1.\n").arg(file.fileName());
|
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err.flush();
|
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exit(1);
|
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}
|
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file.write(buffer);
|
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file.close();
|
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}
|
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};
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|
|
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void writeHeader(const Configuration& conf) {
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|
DifferentFileWriter w(conf.hFile.absoluteFilePath());
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QTextStream h(&w.buffer);
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const QString guard(conf.hFile.fileName().replace('.', '_').toUpper());
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h << QString(R"(/* generated by rust_qt_binding_generator */
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#ifndef %1
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#define %1
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|
|
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#include <QObject>
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#include <QVariant>
|
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#include <QAbstractItemModel>
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|
)").arg(guard);
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|
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for (auto object: conf.objects) {
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writeHeaderObject(h, object);
|
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}
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|
|
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h << QString("#endif // %1\n").arg(guard);
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}
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|
|
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void writeCpp(const Configuration& conf) {
|
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DifferentFileWriter w(conf.cppFile.absoluteFilePath());
|
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QTextStream cpp(&w.buffer);
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cpp << QString(R"(/* generated by rust_qt_binding_generator */
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#include "%1"
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#include <QModelIndex>
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|
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namespace {
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|
struct qbytearray_t {
|
|
private:
|
|
const char* data;
|
|
int len;
|
|
public:
|
|
qbytearray_t(const QByteArray& v):
|
|
data(v.data()),
|
|
len(v.size()) {
|
|
}
|
|
operator QByteArray() const {
|
|
return QByteArray(data, len);
|
|
}
|
|
};
|
|
struct qstring_t {
|
|
private:
|
|
const void* data;
|
|
int len;
|
|
public:
|
|
qstring_t(const QString& v):
|
|
data(static_cast<const void*>(v.utf16())),
|
|
len(v.size()) {
|
|
}
|
|
operator QString() const {
|
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return QString::fromUtf8(static_cast<const char*>(data), len);
|
|
}
|
|
};
|
|
struct qmodelindex_t {
|
|
int row;
|
|
int column;
|
|
uint64_t id;
|
|
qmodelindex_t(const QModelIndex& m):
|
|
row(m.row()), column(m.column()), id(m.internalId()) {}
|
|
};
|
|
struct qvariant_t {
|
|
unsigned int type;
|
|
int value;
|
|
const char* data;
|
|
};
|
|
QVariant variant(const qvariant_t& v) {
|
|
switch (v.type) {
|
|
case QVariant::String: return QString::fromUtf8(static_cast<const char*>(v.data), v.value);
|
|
case QVariant::Bool: return QVariant((bool)v.value);
|
|
case QVariant::Int: return QVariant(v.value);
|
|
case QVariant::ByteArray: return QVariant(QByteArray(v.data, v.value));
|
|
default:;
|
|
}
|
|
return QVariant();
|
|
}
|
|
void variant(const QByteArray& v, void* d, void (*set)(void*, qvariant_t)) {
|
|
set(d, {
|
|
.type = QVariant::ByteArray,
|
|
.value = v.length(),
|
|
.data = v.data()
|
|
});
|
|
}
|
|
void variant(const QString& v, void* d, void (*set)(void*, qvariant_t)) {
|
|
set(d, {
|
|
.type = QVariant::String,
|
|
.value = v.size(),
|
|
.data = static_cast<const char*>(static_cast<const void*>(v.utf16()))
|
|
});
|
|
}
|
|
void variant(const QVariant& v, void* d, void (*set)(void*, qvariant_t)) {
|
|
switch (v.type()) {
|
|
case QVariant::Bool:
|
|
set(d, {
|
|
.type = QVariant::Bool,
|
|
.value = v.toBool(),
|
|
.data = 0
|
|
});
|
|
break;
|
|
case QVariant::Int:
|
|
set(d, {
|
|
.type = QVariant::Int,
|
|
.value = v.toInt(),
|
|
.data = 0
|
|
});
|
|
break;
|
|
case QVariant::ByteArray:
|
|
variant(v.toByteArray(), d, set);
|
|
break;
|
|
case QVariant::String:
|
|
variant(v.toString(), d, set);
|
|
break;
|
|
default:
|
|
set(d, {
|
|
.type = QVariant::Invalid,
|
|
.value = 0,
|
|
.data = 0
|
|
});
|
|
}
|
|
}
|
|
}
|
|
typedef void (*qstring_set)(QString*, qstring_t*);
|
|
void set_qstring(QString* v, qstring_t* val) {
|
|
*v = *val;
|
|
}
|
|
typedef void (*qbytearray_set)(QByteArray*, qbytearray_t*);
|
|
void set_qbytearray(QByteArray* v, qbytearray_t* val) {
|
|
*v = *val;
|
|
}
|
|
typedef void (*qvariant_set)(QVariant*, qvariant_t*);
|
|
void set_qvariant(QVariant* v, qvariant_t* val) {
|
|
*v = variant(*val);
|
|
}
|
|
|
|
extern "C" {
|
|
)").arg(conf.hFile.fileName());
|
|
|
|
for (auto object: conf.objects) {
|
|
writeObjectCDecl(cpp, object);
|
|
}
|
|
cpp << "};" << endl;
|
|
|
|
for (auto object: conf.objects) {
|
|
writeCppObject(cpp, object);
|
|
}
|
|
}
|
|
|
|
void writeRustInterfaceObject(QTextStream& r, const Object& o) {
|
|
const QString lcname(snakeCase(o.name));
|
|
r << QString(R"(
|
|
pub struct %1QObject {}
|
|
|
|
#[derive (Clone)]
|
|
pub struct %1Emitter {
|
|
qobject: Arc<Mutex<*const %1QObject>>,
|
|
)").arg(o.name);
|
|
for (const Property& p: o.properties) {
|
|
r << QString(" %2_changed: fn(*const %1QObject),\n")
|
|
.arg(o.name, snakeCase(p.name));
|
|
}
|
|
r << QString(R"(}
|
|
|
|
unsafe impl Send for %1Emitter {}
|
|
|
|
impl %1Emitter {
|
|
fn clear(&self) {
|
|
*self.qobject.lock().unwrap() = null();
|
|
}
|
|
)").arg(o.name);
|
|
for (const Property& p: o.properties) {
|
|
r << QString(R"( pub fn %1_changed(&self) {
|
|
let ptr = *self.qobject.lock().unwrap();
|
|
if !ptr.is_null() {
|
|
(self.%1_changed)(ptr);
|
|
}
|
|
}
|
|
)").arg(snakeCase(p.name));
|
|
}
|
|
|
|
QString modelStruct = "";
|
|
if (o.type == ObjectTypeList) {
|
|
modelStruct = ", model: " + o.name + "List";
|
|
r << QString(R"(}
|
|
|
|
pub struct %1List {
|
|
qobject: *const %1QObject,
|
|
%2_begin_insert_rows: fn(*const %1QObject, c_int, c_int),
|
|
%2_end_insert_rows: fn(*const %1QObject),
|
|
%2_begin_remove_rows: fn(*const %1QObject, c_int, c_int),
|
|
%2_end_remove_rows: fn(*const %1QObject),
|
|
}
|
|
|
|
impl %1List {
|
|
pub fn %2_begin_insert_rows(&self, first: c_int, last: c_int) {
|
|
(self.%2_begin_insert_rows)(self.qobject, first, last);
|
|
}
|
|
pub fn %2_end_insert_rows(&self) {
|
|
(self.%2_end_insert_rows)(self.qobject);
|
|
}
|
|
pub fn %2_begin_remove_rows(&self, first: c_int, last: c_int) {
|
|
(self.%2_begin_remove_rows)(self.qobject, first, last);
|
|
}
|
|
pub fn %2_end_remove_rows(&self) {
|
|
(self.%2_end_remove_rows)(self.qobject);
|
|
}
|
|
)").arg(o.name, lcname);
|
|
}
|
|
|
|
r << QString(R"(}
|
|
|
|
pub trait %1Trait {
|
|
fn create(emit: %1Emitter%2) -> Self;
|
|
fn emit(&self) -> &%1Emitter;
|
|
)").arg(o.name, modelStruct);
|
|
for (const Property& p: o.properties) {
|
|
const QString lc(snakeCase(p.name));
|
|
r << QString(" fn get_%1(&self) -> %2;\n").arg(lc, p.type.rustType);
|
|
if (p.write) {
|
|
r << QString(" fn set_%1(&mut self, value: %2);\n").arg(lc, p.type.rustType);
|
|
}
|
|
}
|
|
if (o.type == ObjectTypeList) {
|
|
r << " fn row_count(&self) -> c_int;\n";
|
|
for (auto role: o.roles) {
|
|
r << QString(" fn %1(&self, row: c_int) -> Variant;\n")
|
|
.arg(snakeCase(role.name));
|
|
}
|
|
}
|
|
|
|
r << QString(R"(}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn %2_new(qobject: *const %1QObject)").arg(o.name, lcname);
|
|
for (const Property& p: o.properties) {
|
|
r << QString(",\n %2_changed: fn(*const %1QObject)")
|
|
.arg(o.name, snakeCase(p.name));
|
|
}
|
|
if (o.type == ObjectTypeList) {
|
|
r << QString(R"(,
|
|
%2_begin_insert_rows: fn(*const %1QObject,
|
|
c_int,
|
|
c_int),
|
|
%2_end_insert_rows: fn(*const %1QObject),
|
|
%2_begin_remove_rows: fn(*const %1QObject,
|
|
c_int,
|
|
c_int),
|
|
%2_end_remove_rows: fn(*const %1QObject))").arg(o.name, lcname);
|
|
}
|
|
r << QString(R"()
|
|
-> *mut %1 {
|
|
let emit = %1Emitter {
|
|
qobject: Arc::new(Mutex::new(qobject)),
|
|
)").arg(o.name);
|
|
for (const Property& p: o.properties) {
|
|
r << QString(" %1_changed: %1_changed,\n").arg(snakeCase(p.name));
|
|
}
|
|
QString model = "";
|
|
if (o.type == ObjectTypeList) {
|
|
model = ", model";
|
|
r << QString(R"( };
|
|
let model = %1List {
|
|
qobject: qobject,
|
|
%2_begin_insert_rows: %2_begin_insert_rows,
|
|
%2_end_insert_rows: %2_end_insert_rows,
|
|
%2_begin_remove_rows: %2_begin_remove_rows,
|
|
%2_end_remove_rows: %2_end_remove_rows,
|
|
)").arg(o.name, lcname);
|
|
}
|
|
r << QString(R"( };
|
|
let d = %1::create(emit%3);
|
|
Box::into_raw(Box::new(d))
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn %2_free(ptr: *mut %1) {
|
|
Box::from_raw(ptr).emit().clear();
|
|
}
|
|
)").arg(o.name, lcname, model);
|
|
for (const Property& p: o.properties) {
|
|
const QString base = QString("%1_%2").arg(lcname, snakeCase(p.name));
|
|
QString ret = ") -> " + p.type.rustType;
|
|
if (p.type.isComplex()) {
|
|
r << QString(R"(
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn %2_get(ptr: *const %1,
|
|
p: *mut c_void,
|
|
set: fn(*mut c_void, %4)) {
|
|
let data = (&*ptr).get_%3();
|
|
set(p, %4::from(&data));
|
|
}
|
|
)").arg(o.name, base, snakeCase(p.name), p.type.name);
|
|
if (p.write) {
|
|
const QString type = p.type.name == "QString" ? "QStringIn" : p.type.name;
|
|
r << QString(R"(
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn %2_set(ptr: *mut %1, v: %4) {
|
|
(&mut *ptr).set_%3(v.convert());
|
|
}
|
|
)").arg(o.name, base, snakeCase(p.name), type);
|
|
}
|
|
} else {
|
|
r << QString(R"(
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn %2_get(ptr: *const %1) -> %4 {
|
|
(&*ptr).get_%3()
|
|
}
|
|
)").arg(o.name, base, snakeCase(p.name), p.type.rustType);
|
|
if (p.write) {
|
|
r << QString(R"(
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn %2_set(ptr: *mut %1, v: %4) {
|
|
(&mut *ptr).set_%3(v);
|
|
}
|
|
)").arg(o.name, base, snakeCase(p.name), p.type.rustType);
|
|
}
|
|
}
|
|
}
|
|
if (o.type == ObjectTypeList) {
|
|
r << QString(R"(
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn %2_row_count(ptr: *const %1) -> c_int {
|
|
(&*ptr).row_count()
|
|
}
|
|
)").arg(o.name, lcname);
|
|
for (auto role: o.roles) {
|
|
r << QString(R"(
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn %2_data_%3(ptr: *const %1,
|
|
row: c_int,
|
|
d: *mut c_void,
|
|
set: fn(*mut c_void, &QVariant)) {
|
|
let data = (& *ptr).%3(row);
|
|
set(d, &QVariant::from(&data));
|
|
}
|
|
)").arg(o.name, lcname, snakeCase(role.name));
|
|
}
|
|
}
|
|
}
|
|
|
|
QString rustFile(const QDir rustdir, const QString& module) {
|
|
QDir src(rustdir.absoluteFilePath("src"));
|
|
QString path = src.absoluteFilePath(module + ".rs");
|
|
return path;
|
|
}
|
|
|
|
void writeRustInterface(const Configuration& conf) {
|
|
DifferentFileWriter w(rustFile(conf.rustdir, conf.interfaceModule));
|
|
QTextStream r(&w.buffer);
|
|
r << QString(R"(/* generated by rust_qt_binding_generator */
|
|
#![allow(unknown_lints)]
|
|
#![allow(mutex_atomic, needless_pass_by_value)]
|
|
#![allow(unused_imports)]
|
|
use libc::{c_int, c_void};
|
|
use types::*;
|
|
use std::sync::{Arc, Mutex};
|
|
use std::ptr::null;
|
|
|
|
use %1::*;
|
|
)").arg(conf.implementationModule);
|
|
|
|
for (auto object: conf.objects) {
|
|
writeRustInterfaceObject(r, object);
|
|
}
|
|
}
|
|
|
|
void writeRustImplementationObject(QTextStream& r, const Object& o) {
|
|
const QString lcname(snakeCase(o.name));
|
|
QString modelStruct = "";
|
|
r << QString("pub struct %1 {\n emit: %1Emitter,\n").arg((o.name));
|
|
if (o.type == ObjectTypeList) {
|
|
modelStruct = ", model: " + o.name + "List";
|
|
r << QString(" model: %1List,\n").arg(o.name);
|
|
}
|
|
for (const Property& p: o.properties) {
|
|
const QString lc(snakeCase(p.name));
|
|
r << QString(" %1: %2,\n").arg(lc, p.type.rustType);
|
|
}
|
|
r << "}\n\n";
|
|
r << QString(R"(impl %1Trait for %1 {
|
|
fn create(emit: %1Emitter%2) -> %1 {
|
|
%1 {
|
|
emit: emit,
|
|
)").arg(o.name, modelStruct);
|
|
if (o.type == ObjectTypeList) {
|
|
r << QString(" model: model,\n");
|
|
}
|
|
for (const Property& p: o.properties) {
|
|
const QString lc(snakeCase(p.name));
|
|
r << QString(" %1: %2,\n").arg(lc, p.type.rustTypeInit);
|
|
}
|
|
r << QString(R"( }
|
|
}
|
|
fn emit(&self) -> &%1Emitter {
|
|
&self.emit
|
|
}
|
|
)").arg(o.name);
|
|
for (const Property& p: o.properties) {
|
|
const QString lc(snakeCase(p.name));
|
|
r << QString(" fn get_%1(&self) -> %2 {\n").arg(lc, p.type.rustType);
|
|
if (p.type.isComplex()) {
|
|
r << QString(" self.%1.clone()\n").arg(lc);
|
|
} else {
|
|
r << QString(" self.%1\n").arg(lc);
|
|
}
|
|
r << " }\n";
|
|
if (p.write) {
|
|
r << QString(R"( fn set_%1(&mut self, value: %2) {
|
|
self.%1 = value;
|
|
self.emit.%1_changed();
|
|
}
|
|
)").arg(lc, p.type.rustType);
|
|
}
|
|
}
|
|
if (o.type == ObjectTypeList) {
|
|
r << " fn row_count(&self) -> c_int {\n 10\n }\n";
|
|
for (auto role: o.roles) {
|
|
r << QString(" fn %1(&self, row: c_int) -> Variant {\n")
|
|
.arg(snakeCase(role.name));
|
|
r << " Variant::Bool(row > 0)\n";
|
|
r << " }\n";
|
|
}
|
|
}
|
|
r << "}\n";
|
|
}
|
|
|
|
void writeRustImplementation(const Configuration& conf) {
|
|
DifferentFileWriter w(rustFile(conf.rustdir, conf.implementationModule),
|
|
conf.overwriteImplementation);
|
|
QTextStream r(&w.buffer);
|
|
r << QString(R"(#![allow(unused_imports)]
|
|
use libc::c_int;
|
|
use types::*;
|
|
use %1::*;
|
|
|
|
)").arg(conf.interfaceModule);
|
|
|
|
for (auto object: conf.objects) {
|
|
writeRustImplementationObject(r, object);
|
|
}
|
|
}
|
|
|
|
void writeRustTypes(const Configuration& conf) {
|
|
DifferentFileWriter w(rustFile(conf.rustdir, conf.typesModule));
|
|
QTextStream r(&w.buffer);
|
|
r << QString(R"(/* generated by rust_qt_binding_generator */
|
|
#![allow(dead_code)]
|
|
use std::slice;
|
|
use libc::{c_int, uint8_t, uint16_t};
|
|
use std::ptr::null;
|
|
use std::marker::PhantomData;
|
|
|
|
#[repr(C)]
|
|
pub struct QString {
|
|
data: *const uint8_t,
|
|
len: c_int,
|
|
}
|
|
|
|
#[repr(C)]
|
|
pub struct QStringIn {
|
|
data: *const uint16_t,
|
|
len: c_int,
|
|
}
|
|
|
|
impl QStringIn {
|
|
pub fn convert(&self) -> String {
|
|
let data = unsafe { slice::from_raw_parts(self.data, self.len as usize) };
|
|
String::from_utf16_lossy(data)
|
|
}
|
|
}
|
|
|
|
impl<'a> From<&'a String> for QString {
|
|
fn from(string: &'a String) -> QString {
|
|
QString {
|
|
len: string.len() as c_int,
|
|
data: string.as_ptr(),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[repr(C)]
|
|
pub struct QByteArray {
|
|
data: *const uint8_t,
|
|
len: c_int,
|
|
}
|
|
|
|
impl QByteArray {
|
|
pub fn convert(&self) -> Vec<u8> {
|
|
let data = unsafe { slice::from_raw_parts(self.data, self.len as usize) };
|
|
Vec::from(data)
|
|
}
|
|
}
|
|
|
|
impl<'a> From<&'a Vec<u8>> for QByteArray {
|
|
fn from(value: &'a Vec<u8>) -> QByteArray {
|
|
QByteArray {
|
|
len: value.len() as c_int,
|
|
data: value.as_ptr(),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub enum Variant {
|
|
None,
|
|
Bool(bool),
|
|
Int(c_int),
|
|
String(String),
|
|
ByteArray(Vec<u8>),
|
|
}
|
|
|
|
impl From<bool> for Variant {
|
|
fn from(value: bool) -> Variant {
|
|
Variant::Bool(value)
|
|
}
|
|
}
|
|
|
|
impl From<String> for Variant {
|
|
fn from(value: String) -> Variant {
|
|
Variant::String(value)
|
|
}
|
|
}
|
|
|
|
/* values from qvariant.h and qmetatype.h */
|
|
#[repr(u32)]
|
|
#[derive(Clone, Copy)]
|
|
enum VariantType {
|
|
Invalid = 0,
|
|
Bool = 1,
|
|
Int = 2,
|
|
String = 10,
|
|
ByteArray = 12,
|
|
}
|
|
|
|
#[repr(C)]
|
|
pub struct QVariant<'a> {
|
|
type_: VariantType,
|
|
value: c_int,
|
|
data: *const uint8_t,
|
|
phantom: PhantomData<&'a u8>,
|
|
}
|
|
|
|
impl<'a> QVariant<'a> {
|
|
pub fn type_(&self) -> u32 {
|
|
self.type_ as u32
|
|
}
|
|
pub fn convert(&self) -> Variant {
|
|
match self.type_ {
|
|
VariantType::Bool => {
|
|
Variant::Bool(self.value != 0)
|
|
},
|
|
VariantType::Int => {
|
|
Variant::Int(self.value)
|
|
},
|
|
VariantType::String => {
|
|
let data = unsafe {
|
|
let d = self.data as *const uint16_t;
|
|
slice::from_raw_parts(d, self.value as usize)
|
|
};
|
|
Variant::String(String::from_utf16_lossy(data))
|
|
}
|
|
VariantType::ByteArray => {
|
|
let data = unsafe {
|
|
slice::from_raw_parts(self.data, self.value as usize)
|
|
};
|
|
Variant::ByteArray(Vec::from(data))
|
|
}
|
|
_ => Variant::None
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> From<&'a Variant> for QVariant<'a> {
|
|
fn from(variant: &'a Variant) -> QVariant {
|
|
match *variant {
|
|
Variant::None => {
|
|
QVariant {
|
|
data: null(),
|
|
value: 0,
|
|
type_: VariantType::Invalid,
|
|
phantom: PhantomData,
|
|
}
|
|
}
|
|
Variant::Bool(v) => {
|
|
QVariant {
|
|
data: null(),
|
|
value: v as c_int,
|
|
type_: VariantType::Bool,
|
|
phantom: PhantomData,
|
|
}
|
|
}
|
|
Variant::Int(v) => {
|
|
QVariant {
|
|
data: null(),
|
|
value: v,
|
|
type_: VariantType::Int,
|
|
phantom: PhantomData,
|
|
}
|
|
}
|
|
Variant::String(ref v) => {
|
|
QVariant {
|
|
data: v.as_ptr(),
|
|
value: v.len() as c_int,
|
|
type_: VariantType::String,
|
|
phantom: PhantomData,
|
|
}
|
|
}
|
|
Variant::ByteArray(ref v) => {
|
|
QVariant {
|
|
data: v.as_ptr(),
|
|
value: v.len() as c_int,
|
|
type_: VariantType::ByteArray,
|
|
phantom: PhantomData,
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#[repr(C)]
|
|
pub struct QModelIndex {
|
|
row: c_int,
|
|
column: c_int,
|
|
internal_id: usize,
|
|
}
|
|
|
|
impl QModelIndex {
|
|
pub fn invalid() -> QModelIndex {
|
|
QModelIndex {
|
|
row: -1,
|
|
column: -1,
|
|
internal_id: 0,
|
|
}
|
|
}
|
|
pub fn create(row: c_int, column: c_int, id: usize) -> QModelIndex {
|
|
QModelIndex {
|
|
row: row,
|
|
column: column,
|
|
internal_id: id,
|
|
}
|
|
}
|
|
pub fn flat(row: c_int, column: c_int) -> QModelIndex {
|
|
QModelIndex {
|
|
row: row,
|
|
column: column,
|
|
internal_id: 1,
|
|
}
|
|
}
|
|
pub fn is_valid(&self) -> bool {
|
|
self.internal_id != 0 && self.row >= 0 && self.column >= 0
|
|
}
|
|
pub fn row(&self) -> c_int {
|
|
self.row
|
|
}
|
|
pub fn column(&self) -> c_int {
|
|
self.column
|
|
}
|
|
pub fn id(&self) -> usize {
|
|
self.internal_id
|
|
}
|
|
}
|
|
|
|
|
|
)");
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
QCoreApplication app(argc, argv);
|
|
QCoreApplication::setApplicationName(argv[0]);
|
|
QCoreApplication::setApplicationVersion("0.1");
|
|
|
|
QCommandLineParser parser;
|
|
parser.setApplicationDescription("Generates bindings between Qt and Rust");
|
|
parser.addHelpOption();
|
|
parser.addVersionOption();
|
|
parser.addPositionalArgument("configuration",
|
|
QCoreApplication::translate("main", "Configuration file"));
|
|
|
|
// A boolean option (--overwrite-implementation)
|
|
QCommandLineOption overwriteOption(QStringList()
|
|
<< "overwrite-implementation",
|
|
QCoreApplication::translate("main",
|
|
"Overwrite existing implementation."));
|
|
parser.addOption(overwriteOption);
|
|
|
|
parser.process(app);
|
|
|
|
const QStringList args = parser.positionalArguments();
|
|
if (args.isEmpty()) {
|
|
err << QCoreApplication::translate("main",
|
|
"Configuration file is missing.\n");
|
|
return 1;
|
|
}
|
|
|
|
const QString configurationFile(args.at(0));
|
|
Configuration configuration = parseConfiguration(configurationFile);
|
|
configuration.overwriteImplementation = parser.isSet(overwriteOption);
|
|
|
|
writeHeader(configuration);
|
|
writeCpp(configuration);
|
|
writeRustInterface(configuration);
|
|
writeRustImplementation(configuration);
|
|
writeRustTypes(configuration);
|
|
|
|
return 0;
|
|
}
|