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RubaXa/typings.ts

Created August 27, 2019 16:56
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TrueSlots. SlotProp.
Raw
typings.ts
// Функциональный слот
type SlotWithValue< S extends SlotPropType, V, R > = (parent: S, val: V) => R
// Обычный слот
type SlotWithoutValue< S extends SlotPropType > = (parent: S) => S
// 🎰 А теперь в зависимости от того, какая у нас S-спека
// возвращаем обыччный слот, либо функциональный
type SlotProp< S extends SlotPropType > = null | (
S extends (value: infer V) => infer R // если S — функция
? SlotWithValue< S, V, R > | R
: SlotWithoutValue< S > | S
)
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