nonEmptyListOf

lib.types.nonEmptyListOf

Docs pulled from | This Revision | 18 days ago

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Implementation

The following is the current implementation of this function.

elemType:
    let
      list = addCheck (lib.types.listOf elemType) (l: l != [ ]);
    in
    list
    // {
      description = "non-empty ${optionDescriptionPhrase (class: class == "noun") list}";
      emptyValue = { }; # no .value attr, meaning unset
      substSubModules = m: nonEmptyListOf (elemType.substSubModules m);
    }