func (this *JSConverter) VisitIsNotMissing(expr *expression.IsNotMissing) (interface{}, error) { var buf bytes.Buffer buf.WriteString("typeof(") buf.WriteString(this.Visit(expr.Operand())) buf.WriteString(") != 'undefined')") return buf.String(), nil }
func newSargNotMissing(expr *expression.IsNotMissing) *sargNotMissing { rv := &sargNotMissing{} rv.sarg = func(expr2 expression.Expression) (Spans, error) { if expr.EquivalentTo(expr2) { return _SELF_SPANS, nil } if !expr.Operand().EquivalentTo(expr2) { return nil, nil } return _FULL_SPANS, nil } return rv }