/// <summary>
/// When overridden in a derived class provides the non-Meta implementation of deleting a member.
///
/// When not overridden the call site requesting the binder determines the behavior.
/// </summary>
public virtual bool TryDeleteMember(DeleteMemberBinder binder)
{
throw new NotSupportedException();
}
public override MetaObject BindDeleteMember(DeleteMemberBinder binder) {
ContractUtils.RequiresNotNull(binder, "binder");
ExpandoClass klass;
int index;
ExpandoClass originalClass = GetClassEnsureIndex(binder.Name, binder.IgnoreCase, out klass, out index);
string methodName = binder.IgnoreCase ? "ExpandoDeleteValueIgnoreCase" : "ExpandoDeleteValue";
return new MetaObject(
AddDynamicTestAndDefer(
binder,
new MetaObject[] { this },
klass,
originalClass,
Expression.Convert(
Expression.Call(
typeof(RuntimeOps).GetMethod(methodName),
GetLimitedSelf(),
Expression.Constant(klass),
Expression.Constant(index)
),
typeof(object)
)
),
GetRestrictions()
);
}
public virtual MetaObject BindDeleteMember(DeleteMemberBinder binder)
{
ContractUtils.RequiresNotNull(binder, "binder");
return(binder.FallbackDeleteMember(this));
}
/// <summary>
/// When overridden in a derived class provides the non-Meta implementation of deleting a member.
///
/// When not overridden the call site requesting the binder determines the behavior.
/// </summary>
public virtual bool TryDeleteMember(DeleteMemberBinder binder) {
throw new NotSupportedException();
}
public override MetaObject BindDeleteMember(DeleteMemberBinder binder) {
if (IsOverridden("TryDeleteMember")) {
return CallMethodNoResult("TryDeleteMember", binder, NoArgs, (e) => binder.FallbackDeleteMember(this, e));
}
return base.BindDeleteMember(binder);
}
public override bool Equals(object obj)
{
DeleteMemberBinder dma = obj as DeleteMemberBinder;
return(dma != null && dma._name == _name && dma._ignoreCase == _ignoreCase);
}
public virtual MetaObject BindDeleteMember(DeleteMemberBinder binder) {
ContractUtils.RequiresNotNull(binder, "binder");
return binder.FallbackDeleteMember(this);
}