Optimization: Bypass qt_metacall for synthesized methods

1 files changed, 17 insertions, 2 deletions

diff --git a/src/declarative/qml/qmlcompiler.cpp b/src/declarative/qml/qmlcompiler.cpp
index 7c43305..7f8bc7a 100644
--- a/src/declarative/qml/qmlcompiler.cpp
+++ b/src/declarative/qml/qmlcompiler.cpp
@@ -90,7 +90,7 @@ using namespace QmlParser;
     Instantiate a new QmlCompiler.
 */
 QmlCompiler::QmlCompiler()
-: output(0), engine(0)
+: output(0), engine(0), unitRoot(0), unit(0)
 {
 }
 
@@ -611,6 +611,7 @@ bool QmlCompiler::compile(QmlEngine *engine,
 
     this->engine = engine;
     this->unit = unit;
+    this->unitRoot = root;
     compileTree(root);
 
     if (!isError()) {
@@ -626,6 +627,8 @@ bool QmlCompiler::compile(QmlEngine *engine,
     savedCompileStates.clear();
     output = 0;
     this->engine = 0;
+    this->unit = 0;
+    this->unitRoot = 0;
 
     return !isError();
 }
@@ -836,7 +839,19 @@ void QmlCompiler::genObject(QmlParser::Object *obj)
         meta.storeMeta.aliasData = output->indexForByteArray(obj->synthdata);
         meta.storeMeta.propertyCache = output->propertyCaches.count();
         // ### Surely the creation of this property cache could be more efficient
-        output->propertyCaches << QmlPropertyCache::create(engine, obj->metaObject());
+        QmlPropertyCache *propertyCache = 0;
+        if (tr.component && QmlComponentPrivate::get(tr.component)->cc->rootPropertyCache) {
+            propertyCache = QmlComponentPrivate::get(tr.component)->cc->rootPropertyCache->copy();
+        } else {
+            propertyCache = QmlPropertyCache::create(engine, obj->metaObject()->superClass());
+        }
+        propertyCache->append(engine, obj->metaObject(), QmlPropertyCache::Data::NoFlags,
+                              QmlPropertyCache::Data::IsVMEFunction);
+        if (obj == unitRoot) {
+            propertyCache->addref();
+            output->rootPropertyCache = propertyCache;
+        }
+        output->propertyCaches << propertyCache;
         output->bytecode << meta;
     }