execute method
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');