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 _conversionException('.toBoolean()', results)
        : _isNotAcceptedType(results)
            ? []
            : results.first == true ||
                    results.first == 1 ||
                    ['true', 't', 'yes', 'y', '1', '1.0'].indexWhere(
                            (element) =>
                                element ==
                                results.first.toString().toLowerCase()) !=
                        -1
                ? [true]
                : results.first == false ||
                        results.first == 0 ||
                        ['false', 'f', 'no', 'n', '0', '0.0'].indexWhere(
                                (element) =>
                                    element ==
                                    results.first.toString().toLowerCase()) !=
                            -1
                    ? [false]
                    : [];