Clarification on .homonyms?

[MatthieuStigler]

Hi

I have trouble understanding the use of .homonyms in enquos(). I thought it would keep/filter arguments of the same name, which I understand to be inputs in .... Now it does not seem to be the case, but I probably misunderstood the function? Could you please give a specific example of the use of .homonyms.

More generally, I was trying to get only "unique" expressions out of list of quosures, is .homonyms relevant in that case?

Thanks!!

library(rlang)
packageVersion("rlang")
#> [1] '0.4.6'
fo <- function(x_var=Species){
  rlang::enquos(x_var,x_var,  .homonyms = "error", .named=TRUE)  
}
fo()
#> <list_of<quosure>>
#> 
#> $Species
#> <quosure>
#> expr: ^Species
#> env:  0x55fd5ddcd3e8
#> 
#> $Species
#> <quosure>
#> expr: ^Species
#> env:  0x55fd5ddcd3e8
fo2 <- function(...){
  rlang::enquos(...,  .homonyms = "error", .named=TRUE)  
}
fo2(Species, Species)
#> <list_of<quosure>>
#> 
#> $Species
#> <quosure>
#> expr: ^Species
#> env:  global
#> 
#> $Species
#> <quosure>
#> expr: ^Species
#> env:  global

^{Created on 2020-06-23 by the reprex package (v0.3.0)}

[lionel-]

This is a bug, you can use quos() in the mean time (it supports capturing dots but not named arguments).