Extends a list with an named element if the element does not exist

h_complete_list(ell, name, value)

Arguments

ell	list to be extended (usually an ellipsis as list(...))
name	character with the name for the element to be added
value	value that will be stored in `ell[[el_name]]`

Value

if ell already contained the element name, then ell is returned without being modified. Otherwise, ell is returned extended by a new element with name name and value value.

Examples

ell <- list(a = 1, b = 2)
sanityTracker:::h_complete_list(ell = ell, name = "a", value = 100)
#> $a
#> [1] 1
#> 
#> $b
#> [1] 2
#> 
sanityTracker:::h_complete_list(ell = ell, name = "d", value = Inf)
#> $a
#> [1] 1
#> 
#> $b
#> [1] 2
#> 
#> $d
#> [1] Inf
#>