>>>>> Neal Richardson <neal.p.richard...@gmail.com>
>>>>> on Fri, 8 Sep 2017 10:52:32 -0700 writes:
> Hi,
> I noticed some R-devel failures on CRAN on a package I maintain:
> https://cloud.r-project.org/web/checks/check_results_httptest.html
> It appears that 'dput'/'deparse' is returning an invalid object when
> there is a named character vector inside a list. Here is a minimal
> example that reproduces the issue:
>> z <- list(a=c(b="foo"))
>> str(z)
> List of 1
> $ a: Named chr "foo"
> ..- attr(*, "names")= chr "b"
>> dput(z)
> list(a = b = "foo")
>> parse(text=deparse(z))
> Error in parse(text = deparse(z)) : <text>:1:12: unexpected '='
> 1: list(a = b =
> ^
> But it works fine if you just provide a named character vector:
>> dput(z$a)
> structure("foo", .Names = "b")
("of course", because that had been tested quite extensively).
Thank you for reporting. It is clearly a bug.
We're happy if your report it formally (https://bugs.r-project.org),
but as it is only in "R-devel", the development version of R, to
report here is indeed perfect.
> I know that there were some recent improvements to 'deparse' (c73120,
> 73144). Among the failures on my package on R-devel on CRAN, a test
> run on version as old as r73150 does manifest this bug
>
(https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-fedora-gcc/httptest-00check.html),
> so the timing does suggest that those changes could be related.
I'm sure they are (and it is mea culpa).
I will address this ASAP.
Martin
> Neal
>> sessionInfo()
> R Under development (unstable) (2017-09-07 r73219)
> Platform: x86_64-apple-darwin15.6.0 (64-bit)
> Running under: macOS Sierra 10.12.6
> Matrix products: default
> BLAS:
/Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRblas.0.dylib
> LAPACK:
/Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRlapack.dylib
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
> loaded via a namespace (and not attached):
> [1] compiler_3.5.0
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