Method Eval

runtime/sam/expr/cast.go:169–197

(val super.Value)

}

func (c *casterTime) Eval(val super.Value) super.Value {
	id := val.Type().ID()
	var ts nano.Ts
	switch {
	case id == super.IDTime:
		return val
	case id == super.IDString:
		gotime, err := dateparse.ParseAny(byteconv.UnsafeString(val.Bytes()))
		if err != nil {
			v, err := byteconv.ParseFloat64(val.Bytes())
			if err != nil {
				return c.sctx.WrapError("cannot cast to time", val)
			}
			ts = nano.Ts(v)
		} else {
			ts = nano.Ts(gotime.UnixNano())
		}
	case super.IsNumber(id):
		//XXX we call coerce on integers here to avoid unsigned/signed decode
		v, ok := coerce.ToInt(val, super.TypeTime)
		if !ok {
			return c.sctx.WrapError("cannot cast to time", val)
		}
		ts = nano.Ts(v)
	default:
		return c.sctx.WrapError("cannot cast to time", val)
	}
	return super.NewTime(ts)
}

type casterString struct {
	sctx *super.Context