>>>>> "Roger" == Roger D Peng <[EMAIL PROTECTED]>
>>>>> on Sun, 28 Sep 2003 17:09:04 -0400 writes:
Roger> I ran into a problem recently trying to update a
Roger> package which uses S4 methods using a recent beta of
Roger> R. I think I can reproduce it with a simple example.
Roger> I have package called `testpkg' in directory
Roger> testpkg/. In the R/ subdirectory of testpkg/ I have
Roger> a file called testpkg.R which contains the following
Roger> two lines:
Roger> setClass("testpkg", representation(pts = "list"))
Roger> setAs("testpkg", "numeric", function(from, to) as.numeric(unlist(from)))
Yes, this *is* a problem in recent "R beta" versions.
Doug Bates has reported something very similar to the R core..
So, it should hopefully be resolved "soon".
Thank you very much, Roger, for reporting the problem!
We *are* really very grateful if many people now switch from R
1.7.x to "1.8.0 beta" such that we can catch as many bugs as
possible before release!
Martin
Roger> Then, in the main testpkg/ directory I have an empty
Roger> `install.R' file and a dummy DESCRIPTION file (as
Roger> well as an empty man/ subdirectory).
Roger> When I run `R CMD INSTALL testpkg' I get the following output:
Roger> marla:> R CMD INSTALL testpkg
Roger> * Installing *source* package 'testpkg' ...
Roger> ** R
Roger> ** save image
Roger> [1] "testpkg"
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Loading required package: testpkg
Roger> Error during wrapup: evaluation is nested too deeply: infinite recursion?
Roger> Loading required package: testpkg
Roger> Error in options(x) : evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Error: evaluation is nested too deeply: infinite recursion?
Roger> Execution halted
Roger> ERROR: execution of package source for 'testpkg' failed
Roger> ** Removing '/home/rpeng/install/R-beta/lib/R/library/testpkg'
Roger> Is this expected? Did I specify something
Roger> incorrectly?
Roger> If I remove the setAs() call, everything installs
Roger> fine. Furthermore, if I include a line like:
Roger> setAs("numeric", "testpkg", function(from, to)
Roger> list())
Roger> that doesn't seem to cause a problem. I only get the
Roger> infinite recursion problem when the first argument to
Roger> setAs() is the new class "testpkg".
>> version
Roger> _
Roger> platform i686-pc-linux-gnu
Roger> arch i686
Roger> os linux-gnu
Roger> system i686, linux-gnu
Roger> status beta
Roger> major 1
Roger> minor 8.0
Roger> year 2003
Roger> month 09
Roger> day 27
Roger> language R
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