Create Translation Bindings without CompiledData::Binding

To add translation bindings to qmltc, the methods used to create
translation bindings need to be adapted to work without
QV4::CompiledData::Binding as it is not available from qmltc. Instead,
information already available from the QQmlJSScope should be used, along
with a newly introduced helper class QQmlTranslation.

Details:
Add a QQmlTranslation class that represents a call to qsTr, qsTrId etc
that knows how to translate itself (without needing any
ExecutableCompilationUnit or Binding). It encapsulates the
information needed to create a translation binding.

ExecutableCompilationUnit::bindingValueAsString refactored
so its functionality can be used without Binding.
Instead, it uses only the translationId, see
ExecutableCompilationUnit::translateFromId
and
ExecutableCompilationUnit::translateFrom.

Refactored QQmlTranslationBinding to work with QQmlTranslation instead
of CompiledData::Binding.
Same for QQmlCppBinding::createTranslationBindingForBindable,
QQmlTranslationPropertyBinding::create and
QQmlCppBinding::createTranslationBindingForNonBindable.

Changed TranslationBindingInformation to work without
CompiledData::Binding, and also removed static unused
QString ProxyTranslator::originStringFromInformation(
   const TranslationBindingInformation &translationBindingInformation)
as I could not find out what this origin string is.

Same for the translation debugging in qmldb_preview.

Added QmltcCodeGenerator::generate_createTranslationBindingOnProperty.

Added #if to avoid compilation error for standalone DOM compilation due
to the new QQmlTranslation class.

Task-number: QTBUG-105345
Change-Id: Iccd94d5cba4eaf63901233451fec48051c855c2a
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

2 files changed, 50 insertions, 1 deletions

diff --git a/src/qml/debugger/qqmldebugserviceinterfaces.cpp b/src/qml/debugger/qqmldebugserviceinterfaces.cpp
index 7597a381b7..4067d1f5d1 100644
--- a/src/qml/debugger/qqmldebugserviceinterfaces.cpp
+++ b/src/qml/debugger/qqmldebugserviceinterfaces.cpp
@@ -45,6 +45,44 @@ QQmlDebugStatesDelegate *QQmlEngineDebugService::createStatesDelegate()
 #if QT_CONFIG(translation)
 QQmlDebugTranslationService::~QQmlDebugTranslationService()
     = default;
+
+const TranslationBindingInformation TranslationBindingInformation::create(
+        const QQmlRefPointer<QV4::ExecutableCompilationUnit> &compilationUnit,
+        const QV4::CompiledData::Binding *binding, QObject *scopeObject,
+        QQmlRefPointer<QQmlContextData> ctxt)
+{
+    QQmlTranslation translation({});
+    if (binding->type() == QV4::CompiledData::Binding::Type_TranslationById) {
+        const QV4::CompiledData::TranslationData data =
+                compilationUnit->data->translations()[binding->value.translationDataIndex];
+        const QString id = compilationUnit->stringAt(data.stringIndex);
+        const int n = data.number;
+
+        translation = QQmlTranslation(QQmlTranslation::QsTrIdData(id, n));
+    } else {
+        Q_ASSERT(binding->type() == QV4::CompiledData::Binding::Type_Translation);
+
+        const QV4::CompiledData::TranslationData data =
+                compilationUnit->data->translations()[binding->value.translationDataIndex];
+        const QString context =
+                QQmlTranslation::contextFromQmlFilename(compilationUnit->fileName());
+        const QString text = compilationUnit->stringAt(data.stringIndex);
+        const QString comment = compilationUnit->stringAt(data.commentIndex);
+        const int n = data.number;
+
+        translation = QQmlTranslation(QQmlTranslation::QsTrData(context, text, comment, n));
+    }
+
+    return { compilationUnit,
+             scopeObject,
+             ctxt,
+
+             compilationUnit->stringAt(binding->propertyNameIndex),
+             translation,
+
+             binding->location.line(),
+             binding->location.column() };
+}
 #endif
 
 QT_END_NAMESPACE
diff --git a/src/qml/debugger/qqmldebugserviceinterfaces_p.h b/src/qml/debugger/qqmldebugserviceinterfaces_p.h
index 33db3a65c3..7c0b736463 100644
--- a/src/qml/debugger/qqmldebugserviceinterfaces_p.h
+++ b/src/qml/debugger/qqmldebugserviceinterfaces_p.h
@@ -22,6 +22,7 @@
 #endif
 #include <private/qqmldebugstatesdelegate_p.h>
 #include <private/qqmlboundsignal_p.h>
+#include <private/qqmltranslation_p.h>
 
 #include <limits>
 
@@ -143,10 +144,20 @@ protected:
 #if QT_CONFIG(translation)
 struct TranslationBindingInformation
 {
+    static const TranslationBindingInformation
+    create(const QQmlRefPointer<QV4::ExecutableCompilationUnit> &compilationUnit,
+           const QV4::CompiledData::Binding *binding, QObject *scopeObject,
+           QQmlRefPointer<QQmlContextData> ctxt);
+
     QQmlRefPointer<QV4::ExecutableCompilationUnit> compilationUnit;
-    const QV4::CompiledData::Binding *compiledBinding;
     QObject *scopeObject;
     QQmlRefPointer<QQmlContextData> ctxt;
+
+    QString propertyName;
+    QQmlTranslation translation;
+
+    quint32 line;
+    quint32 column;
 };
 
 class Q_QML_PRIVATE_EXPORT QQmlDebugTranslationService : public QQmlDebugService