public override DynamicMetaObject BindSetIndex(SetIndexBinder binder, DynamicMetaObject[] indexes, DynamicMetaObject value)
{
//
// Demand Full Trust to proceed with the binding.
//
new PermissionSet(PermissionState.Unrestricted).Demand();
ComMethodDesc method;
var target = _callable.DispatchComObject;
var name = _callable.MemberName;
bool holdsNull = value.Value == null && value.HasValue;
if (target.TryGetPropertySetter(name, out method, value.LimitType, holdsNull) ||
target.TryGetPropertySetterExplicit(name, out method, value.LimitType, holdsNull))
{
bool[] isByRef = ComBinderHelpers.ProcessArgumentsForCom(ref indexes);
isByRef = isByRef.AddLast(false);
var result = BindComInvoke(method, indexes.AddLast(value), binder.CallInfo, isByRef);
// Make sure to return the value; some languages need it.
return(new DynamicMetaObject(
Expression.Block(result.Expression, Expression.Convert(value.Expression, typeof(object))),
result.Restrictions
));
}
return(base.BindSetIndex(binder, indexes, value));
}
public override DynamicMetaObject BindInvoke(InvokeBinder binder, DynamicMetaObject[] args)
{
ContractUtils.RequiresNotNull(binder, "binder");
ComMethodDesc method;
if (_self.TryGetGetItem(out method))
{
bool[] isByRef = ComBinderHelpers.ProcessArgumentsForCom(ref args);
return(BindComInvoke(args, method, binder.CallInfo, isByRef));
}
return(base.BindInvoke(binder, args));
}
public override DynamicMetaObject BindGetIndex(GetIndexBinder binder, DynamicMetaObject[] indexes)
{
ContractUtils.RequiresNotNull(binder, "binder");
ComMethodDesc getItem;
if (_self.TryGetGetItem(out getItem))
{
bool[] isByRef = ComBinderHelpers.ProcessArgumentsForCom(ref indexes);
return(BindComInvoke(indexes, getItem, binder.CallInfo, isByRef));
}
return(base.BindGetIndex(binder, indexes));
}
private DynamicMetaObject BindGetOrInvoke(DynamicMetaObject[] args, CallInfo callInfo)
{
//
// Demand Full Trust to proceed with the binding.
//
new PermissionSet(PermissionState.Unrestricted).Demand();
ComMethodDesc method;
var target = _callable.DispatchComObject;
var name = _callable.MemberName;
if (target.TryGetMemberMethod(name, out method) ||
target.TryGetMemberMethodExplicit(name, out method))
{
bool[] isByRef = ComBinderHelpers.ProcessArgumentsForCom(ref args);
return(BindComInvoke(method, args, callInfo, isByRef));
}
return(null);
}
public override DynamicMetaObject BindSetIndex(SetIndexBinder binder, DynamicMetaObject[] indexes, DynamicMetaObject value)
{
ContractUtils.RequiresNotNull(binder, "binder");
ComMethodDesc setItem;
if (_self.TryGetSetItem(out setItem))
{
bool[] isByRef = ComBinderHelpers.ProcessArgumentsForCom(ref indexes);
isByRef = isByRef.AddLast(false);
var result = BindComInvoke(indexes.AddLast(value), setItem, binder.CallInfo, isByRef);
// Make sure to return the value; some languages need it.
return(new DynamicMetaObject(
Expression.Block(result.Expression, Expression.Convert(value.Expression, typeof(object))),
result.Restrictions
));
}
return(base.BindSetIndex(binder, indexes, value));
}