[new compiler] Initial implementation of signal handler support

Signal handlers start out in the parser as binding expressions. A new
SignalHandlerConverter converts the bindings then so that the expression is
turned into a function declaration where the function parameters match the
parameters of the signal.

Change-Id: I3ea5aa3b80a6ee3b095c6841c63c3e3bb0b47e4f
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/qml/qml/qqmltypeloader.cpp b/src/qml/qml/qqmltypeloader.cpp
index db68631bbf..9ca41f6071 100644
--- a/src/qml/qml/qqmltypeloader.cpp
+++ b/src/qml/qml/qqmltypeloader.cpp
@@ -2173,13 +2173,29 @@ void QQmlTypeData::compile()
         m_imports.populateCache(m_compiledData->importCache);
         m_compiledData->importCache->addref();
 
+        QQmlEngine *engine = typeLoader()->engine();
+
+        QHash<int, QQmlPropertyCache*> resolvedPropertyCaches;
+
         for (QHash<int, TypeReference>::ConstIterator resolvedType = m_resolvedTypes.constBegin(), end = m_resolvedTypes.constEnd();
              resolvedType != end; ++resolvedType) {
             QQmlCompiledData::TypeReference ref;
             ref.type = resolvedType->type;
+            Q_ASSERT(ref.type);
+            resolvedPropertyCaches.insert(resolvedType.key(), ref.createPropertyCache(engine));
             m_compiledData->resolvedTypes.insert(resolvedType.key(), ref);
         }
 
+        {
+            SignalHandlerConverter converter(parsedQML.data(), resolvedPropertyCaches, m_compiledData);
+            if (!converter.convertSignalHandlerExpressionsToFunctionDeclarations()) {
+                setError(converter.errors);
+                m_compiledData->release();
+                m_compiledData = 0;
+                return;
+            }
+        }
+
         JSCodeGen jsCodeGen;
         jsCodeGen.generateJSCodeForFunctionsAndBindings(finalUrlString(), parsedQML.data());