Resending this in plain text, after realising the html text hadn't been posted
(oops).
Hi all,
After an upgrade from R_2.10.1 to R_2.11.1 I am now getting the following error:
Error: evaluation nested too deeply: infinite recursion / options(expressions=)?
This occurs in the initialize method of S4 classes where I was initialising
attributes eg:
.Object[['realtimeState']] <- list()
I can mostly avoid this new error by altering the code to do:
.Object$realtimeState <- list() OR .obj...@.xdata$realtimestate <- list()
But there are also times when I need to do .Object[realtimeState] <- list(NULL)
in order to specifically set it to NULL (rather than have it removed) which I
think is also causing me grief.
My classes all extend .environment and store all non-static data as per above
(in environment .xData slot) rather than in normal class slots because I am
able to achieve much quicker execution times without all the copy-on-change
cost that results from passing these objects containing large amounts of
slot-based data.
Can anyone provide a reason for the changes that have brought about the
recursion issue?
Is there a better way to achieve the pass-by-reference style objects I am after?
Thanks
Troy
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