public object __exit__(CodeContext context, object exc_type, object exc_value, object exc_tb)
{
DynamicOperations ops = context.LanguageContext.Operations;
if (exc_type == null && exc_value == null && exc_tb == null)
{
object commitfn;
if (ops.TryGetMember(this, "commit", out commitfn))
{
ops.Invoke(commitfn);
}
else
{
commit();
}
}
else
{
object rollbackfn;
if (ops.TryGetMember(this, "rollback", out rollbackfn))
{
ops.Invoke(rollbackfn);
}
else
{
rollback();
}
}
return(false);
}
/// <summary>
/// Gets the member name from the object obj. Returns true if the member is successfully retrieved and
/// stores the value in the value out param.
/// </summary>
public bool TryGetMember(object obj, string name, out object value)
{
return(_ops.TryGetMember(obj, name, out value));
}