Method Call

runtime/vam/expr/function/string.go:197–211

(args ...vector.Any)

}

func (t *ToLower) Call(args ...vector.Any) vector.Any {
	if vec, ok := expr.CheckForNullThenError(args); ok {
		return vec
	}
	v := vector.Under(args[0])
	if v.Type() != super.TypeString {
		return vector.NewWrappedError(t.sctx, "lower: string arg required", v)
	}
	out := vector.NewStringEmpty(v.Len())
	for i := uint32(0); i < v.Len(); i++ {
		s := vector.StringValue(v, i)
		out.Append(strings.ToLower(s))
	}
	return out
}

type ToUpper struct {
	sctx *super.Context