/// <inheritdoc />
public IImmutableList <PumpkinMuffin> CookPumpkinMuffins()
{
var oven = new Oven();
oven.Heat(166);
return(MakeFlourMixture()
.Select(flourMixture => MakeEggsMixture().Select(eggsMixture => PrepareBackingDish(flourMixture, eggsMixture)))
.Select(backingDish => oven.Bake <PumpkinBatterCup, PumpkinMuffin>(backingDish, TimeSpan.FromMinutes(30)).ToMaybe())
.SelectOrElse(pumpkinMuffin => pumpkinMuffin.Cups, () => null));
}
/// <inheritdoc />
public IImmutableList <PumpkinMuffin> CookPumpkinMuffins()
{
var oven = new Oven();
oven.Heat(166);
var result =
from flourMixture in MakeFlourMixture()
from eggsMixture in MakeEggsMixture()
from backingDish in PrepareBackingDish(flourMixture, eggsMixture)
from pumpkinMuffins in oven.Bake <PumpkinBatterCup, PumpkinMuffin>(backingDish, TimeSpan.FromMinutes(30)).ToMaybe()
select pumpkinMuffins.Cups;
return(result.GetValueOrDefault());
}
/// <inheritdoc />
public IImmutableList <PumpkinMuffin> CookPumpkinMuffins()
{
var oven = new Oven();
oven.Heat(166);
var result =
from flourMixture in MakeFlourMixture()
from eggsMixture in MakeEggsMixture()
from backingDish in PrepareBackingDish(flourMixture, eggsMixture)
from pumpkinMuffins in oven.Bake <PumpkinBatterCup, PumpkinMuffin>(backingDish, TimeSpan.FromMinutes(30)).ToMaybe()
select pumpkinMuffins.Cups;
// !!!: result имеет тип IEnumerable<IImmutableList<PumpkinMuffin>>
// нужно явно вернуться из IEnumerable в Maybe - для этого и нужен соответствующий экстеншн.
return(result.ToMaybe().GetValueOrDefault());
}