Speedup JS instanceof operator

Cache the prototype of the functionobject, and inline hasInstance.
This removes a vtbl method and speeds things up quite a bit.

Change-Id: Ic68f301f7e09763d445a98bffa2cd201303f902e
Reviewed-by: Simon Hausmann <[email protected]>

1 files changed, 0 insertions, 11 deletions

diff --git a/src/qml/jsruntime/qv4managed.cpp b/src/qml/jsruntime/qv4managed.cpp
index 6455a08037..895ae8d91b 100644
--- a/src/qml/jsruntime/qv4managed.cpp
+++ b/src/qml/jsruntime/qv4managed.cpp
@@ -52,7 +52,6 @@ const ManagedVTable Managed::static_vtbl =
     0 /*markObjects*/,
     destroy,
     0 /*collectDeletables*/,
-    hasInstance,
     0,
     0,
     0,
@@ -178,11 +177,6 @@ QString Managed::className() const
     return QString::fromLatin1(s);
 }
 
-bool Managed::hasInstance(Managed *m, const ValueRef)
-{
-    return m->engine()->current->throwTypeError();
-}
-
 ReturnedValue Managed::construct(Managed *m, CallData *)
 {
     return m->engine()->current->throwTypeError();
@@ -208,11 +202,6 @@ bool Managed::isEqualTo(Managed *, Managed *)
     return false;
 }
 
-bool Managed::hasInstance(const ValueRef v)
-{
-    return vtbl->hasInstance(this, v);
-}
-
 ReturnedValue Managed::get(const StringRef name, bool *hasProperty)
 {
     return vtbl->get(this, name, hasProperty);