List the Steps of a Validator

Returns the steps of a validator as a data.frame, one row per step in the order they run, for introspection and tooling. It shows the same steps as print().

Usage

steps(x)

Arguments

x

a restriction object.

Value

A data.frame with the columns step (position), label (the description shown by print()), deps (list column: context names the step needs) and fields (list column: the parameters the step was built with, NULL when it has none).

See also

Other core: as_contract_block(), as_contract_text(), fail(), is_valid(), require_custom(), restrict(), validation_errors()

Examples

v <- restrict("x") |> require_numeric(no_na = TRUE) |> require_between(0, 1)
steps(v)
#>   step                  label deps      fields
#> 1    1 must be numeric, no NA      TRUE, FALSE
#> 2    2      must be in [0, 1]       0, 1, 0, 0
steps(v)$fields[[2]]
#> $lower
#> [1] 0
#> 
#> $upper
#> [1] 1
#> 
#> $exclusive_lower
#> [1] FALSE
#> 
#> $exclusive_upper
#> [1] FALSE
#>