Function CheckForNullThenError

runtime/vam/expr/eval.go:18–28

CheckForNullThenError returns the first element of vecs with the null type. If no element has the null type, it returns the first element with an error type.

(vecs []vector.Any)

// type. If no element has the null type, it returns the first element with an
// error type.
func CheckForNullThenError(vecs []vector.Any) (vector.Any, bool) {
	var errVec vector.Any
	for _, vec := range vecs {
		if k := vec.Kind(); k == vector.KindNull {
			return vec, true
		} else if k == vector.KindError && errVec == nil {
			errVec = vec
		}
	}
	return errVec, errVec != nil
}

type Call struct {
	fn        Function