Displaying 1 result from an estimated 1 matches for "altvec_extract_subset_default".
2020 Feb 03
1
ALTREP "wrapper" classes needs an Extract_subset method
...od that calls `Extract_subset()` on the "wrapped" object. I have a
patch prepared here:
https://github.com/DavisVaughan/r-source/pull/1
There is currently no call to `R_set_altvec_Extract_subset_method()` in the
wrapper class init functions. This means that the default ALTREP method of
`altvec_Extract_subset_default()` is called, which simply returns `NULL`.
Consider what that means for an ALTREP compact integer seq that has been
"wrapped". The default subsetting code will eventually call
`ExtractSubset()`. That checks if the object is ALTREP, and calls the
ALTREP Extract_subset() method if so. If t...