Refactor our NaN boxing to be more efficient

* Use a unified way to store all Managed objects inside
a Value, instead of distinguishing between strings
and other objects.

* On 64 bit we store pointers as pointers, so accessing them
through Scoped<> objects is cheap. This implies that doubles
are now stored in a mangled form (xor'ed with a mask).

Change-Id: I582e0fb167a62c0c527c6bfa3452550e37944069
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/src/qml/jsruntime/qv4string_p.h b/src/qml/jsruntime/qv4string_p.h
index 8d9347ac2f..7dd912a41f 100644
--- a/src/qml/jsruntime/qv4string_p.h
+++ b/src/qml/jsruntime/qv4string_p.h
@@ -123,11 +123,6 @@ struct Q_QML_EXPORT String : public Managed {
     static String *cast(const Value &v) {
         return v.asString();
     }
-    static Value toValue(String *s) {
-        return Value::fromString(s);
-    }
-
-    ReturnedValue asReturnedValue() { return Value::fromString(this).asReturnedValue(); }
 
     QString _text;
     mutable Identifier *identifier;