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('.ceiling()', results)
: results.first is num
? [(results.first as num).ceil()]
: throw _wrongTypes('.ceiling()', results, 'none');