Make object property lookup resolution virtual

This allows sub-classes of Object to have their own lookup resolution
and verification logic, instead of squeezing it all into qv4lookup.cpp.
The typical fallbacks are still in qv4lookup.cpp though.

Task-number: QTBUG-69898
Change-Id: I32a8884982b37e2065090666a7bf05b198f5b7fd
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/qml/jsruntime/qv4object_p.h b/src/qml/jsruntime/qv4object_p.h
index 9f24449c91..c3f1cb2c35 100644
--- a/src/qml/jsruntime/qv4object_p.h
+++ b/src/qml/jsruntime/qv4object_p.h
@@ -375,6 +375,11 @@ public:
 
     bool setProtoFromNewTarget(const Value *newTarget);
 
+    ReturnedValue resolveLookupGetter(ExecutionEngine *engine, Lookup *lookup) const
+    { return vtable()->resolveLookupGetter(this, engine, lookup); }
+    ReturnedValue resolveLookupSetter(ExecutionEngine *engine, Lookup *lookup, const Value &value)
+    { return vtable()->resolveLookupSetter(this, engine, lookup, value); }
+
 protected:
     static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver,bool *hasProperty);
     static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver);
@@ -389,6 +394,8 @@ protected:
     static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *target);
     static qint64 virtualGetLength(const Managed *m);
     static ReturnedValue virtualInstanceOf(const Object *typeObject, const Value &var);
+    static ReturnedValue virtualResolveLookupGetter(const Object *object, ExecutionEngine *engine, Lookup *lookup);
+    static bool virtualResolveLookupSetter(Object *object, ExecutionEngine *engine, Lookup *lookup, const Value &value);
 public:
     // qv4runtime uses this directly
     static ReturnedValue checkedInstanceOf(ExecutionEngine *engine, const FunctionObject *typeObject, const Value &var);