The problem seems to have been fixed with a change committed this
morning to the archive.
Martin Maechler wrote:
>
> >>>>> "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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--
John M. Chambers [EMAIL PROTECTED]
Bell Labs, Lucent Technologies office: (908)582-2681
700 Mountain Avenue, Room 2C-282 fax: (908)582-3340
Murray Hill, NJ 07974 web: http://www.cs.bell-labs.com/~jmc
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