execute method

@override List execute(List results, Map<String, dynamic> passed)

The iterable, nested function that evaluates the entire FHIRPath expression one object at a time

Implementation

@override
List execute(List results, Map<String, dynamic> passed) => results.isEmpty
    ? []
    : results.length > 1
    ? throw _wrongLength('.abs()', results)
    : results.first is num
    ? (results.first as num).abs().isNaN
          ? []
          : [(results.first as num).abs()]
    : results.first is ValidatedQuantity
    ? [(results.first as ValidatedQuantity).abs()]
    : throw _wrongTypes('.abs()', results, 'none');