c(gf, gf) fails

[vjcitn]

after example(GenomicFiles)

> gf
GenomicFiles object with 3 ranges and 8 files: 
files: ERR127306_chr14.bam, ERR127307_chr14.bam, ..., ERR127304_chr14.bam, ERR127305_chr14.bam 
detail: use files(), rowRanges(), colData(), ... 
> c(gf, gf)
Error in validObject(ans) : 
  invalid class "GenomicFiles" object: 'length(files(object))' must equal 'nrow(colData(object))'
> sessionInfo()
R Under development (unstable) (2020-03-17 r77988)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Mojave 10.14.6

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.0/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] stats4    parallel  stats     graphics  grDevices utils     datasets 
[8] methods   base     

other attached packages:
 [1] RNAseqData.HNRNPC.bam.chr14_0.25.0 GenomicFiles_1.23.1               
 [3] rtracklayer_1.47.0                 Rsamtools_2.3.5                   
 [5] Biostrings_2.55.6                  XVector_0.27.1                    
 [7] SummarizedExperiment_1.17.3        DelayedArray_0.13.7               
 [9] BiocParallel_1.21.2                matrixStats_0.56.0                
[11] Biobase_2.47.3                     GenomicRanges_1.39.2              
[13] GenomeInfoDb_1.23.13               IRanges_2.21.5                    
[15] S4Vectors_0.25.13                  BiocGenerics_0.33.0               
[17] rmarkdown_2.1                     

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.4               lattice_0.20-40          prettyunits_1.1.1       
 [4] assertthat_0.2.1         digest_0.6.25            BiocFileCache_1.11.4    
 [7] R6_2.4.1                 RSQLite_2.2.0            evaluate_0.14           
[10] httr_1.4.1               pillar_1.4.3             zlibbioc_1.33.1         
[13] rlang_0.4.5              GenomicFeatures_1.39.6   progress_1.2.2          
[16] curl_4.3                 blob_1.2.1               Matrix_1.2-18           
[19] startup_0.14.0           stringr_1.4.0            RCurl_1.98-1.1          
[22] bit_1.1-15.2             biomaRt_2.43.3           compiler_4.0.0          
[25] xfun_0.12                pkgconfig_2.0.3          askpass_1.1             
[28] htmltools_0.4.0          tidyselect_1.0.0         openssl_1.4.1           
[31] tibble_2.1.3             GenomeInfoDbData_1.2.2   codetools_0.2-16        
[34] XML_3.99-0.3             crayon_1.3.4             dplyr_0.8.5             
[37] dbplyr_1.4.2             rappdirs_0.3.1           GenomicAlignments_1.23.1
[40] bitops_1.0-6             grid_4.0.0               DBI_1.1.0               
[43] magrittr_1.5             stringi_1.4.6            vctrs_0.2.4             
[46] tools_4.0.0              bit64_0.9-7              BSgenome_1.55.3         
[49] glue_1.3.2               purrr_0.3.3              hms_0.5.3               
[52] AnnotationDbi_1.49.1     memoise_1.1.0            knitr_1.28              
[55] VariantAnnotation_1.33.0
> 

[mtmorgan]

Conceptually, I think you want cbind(gf, gf), but this too is broken. Hervé is developing a more extensive fix.