inspect(): type: 17Error in inspect_(x, env) : Unimplemented type

[HenrikBengtsson]

Possibly related to #55. With:

> foo <- function(...) get("...", mode="...", envir=environment())
> x <- foo(a=1, b=2)
> str(x)
length 2, mode "...": 1 2
> str(x[1][[1]])
 promise to  NULL

you get:

> pryr::inspect(x)
type: 17Error in inspect_(x, env) : Unimplemented type
Enter a frame number, or 0 to exit   

1: pryr::inspect(x)
2: inspect_(x, env)
3: stop(list(message = "Unimplemented type", call = inspect_(x, env), cppstack
...

> pryr::inspect(x[1])
<VECSXP 0x5562f6e81d60>
  <PROMSXP 0x5562f6bae7f0>
  value: 
    [REALSXP 0x5562f6dd49a8]
  code: 
    <REALSXP 0x5562f6dd49a8>
  env: 
    NULL

> sessionInfo()
R version 3.6.1 Patched (2019-10-31 r77348)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.3 LTS

Matrix products: default
BLAS:   /home/hb/software/R-devel/R-3-6-branch/lib/R/lib/libRblas.so
LAPACK: /home/hb/software/R-devel/R-3-6-branch/lib/R/lib/libRlapack.so

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] compiler_3.6.1   pryr_0.1.4       magrittr_1.5     tools_3.6.1     
[5] Rcpp_1.0.2       stringi_1.4.3    codetools_0.2-16 stringr_1.4.0

[lionel-]

pryr is unlikely to get updated.

With lobstr it seems to work:

lobstr::sxp(x[1][[1]])
#> [1:0x7f9fad6b9ef0] <PROMSXP> (named:7)
#>   _value [2:0x7f9faa801e38] <SYMSXP> (named:7)
#>   _code [3:0x7f9fb107bc50] <REALSXP[1]> (named:7)
#>   _env [4:0x7f9faa060390] <ENVSXP: global> (named:7)

[lionel-]

oops this should be:

lobstr::sxp(x)
#> [1:0x7f9fad6b9c88] <DOTSXP> (named:7)
#>   a [2:0x7f9fad6b9ef0] <PROMSXP> (named:7)
#>     _value [3:0x7f9faa801e38] <SYMSXP> (named:7)
#>     _code [4:0x7f9fb107bc50] <REALSXP[1]> (named:7)
#>     _env [5:0x7f9faa060390] <ENVSXP: global> (named:7)
#>   b [6:0x7f9fad6b9e80] <PROMSXP> (named:0)
#>     _value [3:0x7f9faa801e38]
#>     _code [7:0x7f9fb107bc88] <REALSXP[1]> (named:7)
#>     _env [5:0x7f9faa060390]

[HenrikBengtsson]

Thxs. Didn't know lobstr was replacing pryr - it's hard to stay up-to-date with you guys :p