Method Call

runtime/vam/expr/function/math.go:147–173

(args ...vector.Any)

}

func (l *Log) Call(args ...vector.Any) vector.Any {
	if vec, ok := expr.CheckForNullThenError(args); ok {
		return vec
	}
	arg := vector.Under(args[0])
	if !super.IsNumber(arg.Type().ID()) {
		return vector.NewWrappedError(l.sctx, "log: not a number", arg)
	}
	// No error casting number to float so no need to Apply.
	vec := cast.To(l.sctx, arg, super.TypeFloat64)
	var errs []uint32
	var floats []float64
	for i := range vec.Len() {
		v := vector.FloatValue(vec, i)
		if v <= 0 {
			errs = append(errs, i)
			continue
		}
		floats = append(floats, math.Log(v))
	}
	out := vector.NewFloat(super.TypeFloat64, floats)
	if len(errs) > 0 {
		err := vector.NewWrappedError(l.sctx, "log: illegal argument", vector.Pick(arg, errs))
		return vector.Combine(out, errs, err)
	}
	return out
}

type Pow struct {
	sctx *super.Context