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 _conversionException('.toInteger()', results)
: _isNotAcceptedType(results)
? [false]
: results.first is bool
? [results.first == true ? 1 : 0]
: results.first is num
? [(results.first as num).toInt()]
: int.tryParse(results.first as String) != null
? [int.parse(results.first as String)]
: [];