Reject missing values

R's quietest bug: NA sails through every arithmetic operator and every comparison. no_na(T) is T that also refuses NA.

Usage

no_na(t)

Arguments

t

A type, or anything as_type() accepts.

Value

A type.

Examples

no_na(num)(c(1, 2))
#> [1] 1 2
try(no_na(num)(c(1, NA)))
#> Error : 1 validation problem in no_na(num)
#>   <value>  expected no_na(num), got num[2]  -- contains NA
try(no_na(chr[1])(NA_character_))
#> Error : 1 validation problem in no_na(chr[1])
#>   <value>  expected no_na(chr[1]), got chr[1] NA_character_  -- contains NA