Detect and optimize qsTr() and qsTrId() bindings

As these two are frequently used with constants, we can detect them in
the compiler, and run the appropriate C++ functions directly in the VME.
This saves pointlessly creating and running bindings.

Change-Id: I148a150400c13fda7955949453405202f18b1a6b
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/declarative/qml/qdeclarativescript_p.h b/src/declarative/qml/qdeclarativescript_p.h
index a83cd9f8f0..9b54177cd6 100644
--- a/src/declarative/qml/qdeclarativescript_p.h
+++ b/src/declarative/qml/qdeclarativescript_p.h
@@ -223,8 +223,10 @@ public:
     LocationSpan location;
 
     // Used by compiler
-    QDeclarativeCompilerTypes::BindingReference *bindingReference;
-    int signalExpressionContextStack;
+    union {
+        QDeclarativeCompilerTypes::BindingReference *bindingReference;
+        int signalExpressionContextStack;
+    };
 
     // Used in Property::ValueList lists
     Value *nextValue;