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('.convertsToInteger()', results)
: _isNotAcceptedType(results)
? []
: results.first is bool
? [true]
: results.first is num
? [true]
: int.tryParse(results.first as String) != null
? [true]
: [false];