The desired outcome should be as follows:
const newObj: ??? = {
[Fruit<Apple>]: Taste<Apple>,
[Fruit<Banana>]: Taste<Banana>,
}
const selectedKey: Fruit<Apple> = ...;
newObj[selectedKey] // should only return Taste<Apple>
I am aware that I could potentially use
Record<Fruit<T>, Taste<T>>Taste<Apple> to Fruit<Banana>;
To achieve this, you can utilize a map structure that indicates the relationship between different Fruit types and their corresponding Taste. Here's an example:
type FruitTasteMap = {
apple: 'delicious',
banana: 'okay'
}
Your object would then be defined as:
type F = {
[k in keyof FruitTasteMap]: FruitTasteMap[k]
}
This setup gives you the desired outcome:
const ok: F = { // OK
apple: 'delicious',
banana: 'okay'
}
const wrong: F = {
apple: 'delicious',
banana: 'love it!' // Type '"love it!"' is not compatible with type '"okay"'
}
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