chinwag/chinwag-android
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Convert some sealed classes to interfaces (#4347)

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There is no non-abstract field in them, we can just fall back to
interfaces.
This commit is contained in:
Zongle Wang 2024-03-30 03:11:53 +08:00 • committed by GitHub
commit 1acae50845
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8 changed files with 43 additions and 40 deletions
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26
app/src/main/java/com/keylesspalace/tusky/util/Either.kt
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@ -21,27 +21,29 @@ package com.keylesspalace.tusky.util
* Class to represent sum type/tagged union/variant/ADT e.t.c.
* It is either Left or Right.
*/
sealed class Either<out L, out R> {
data class Left<out L, out R>(val value: L) : Either<L, R>()
data class Right<out L, out R>(val value: R) : Either<L, R>()
sealed interface Either<out L, out R> {
data class Left<out L, out R>(val value: L) : Either<L, R>
data class Right<out L, out R>(val value: R) : Either<L, R>
fun isRight() = this is Right
fun isRight(): Boolean = this is Right
fun isLeft() = this is Left
fun isLeft(): Boolean = this is Left
fun asLeftOrNull() = (this as? Left<L, R>)?.value
fun asLeftOrNull(): L? = (this as? Left<L, R>)?.value
fun asRightOrNull() = (this as? Right<L, R>)?.value
fun asRightOrNull(): R? = (this as? Right<L, R>)?.value
fun asLeft(): L = (this as Left<L, R>).value
fun asRight(): R = (this as Right<L, R>).value
inline fun <N> map(crossinline mapper: (R) -> N): Either<L, N> {
return if (this.isLeft()) {
Left(this.asLeft())
} else {
Right(mapper(this.asRight()))
companion object {
inline fun <L, R, N> Either<L, R>.map(crossinline mapper: (R) -> N): Either<L, N> {
return if (this.isLeft()) {
Left(this.asLeft())
} else {
Right(mapper(this.asRight()))
}
}
}
}

10
app/src/main/java/com/keylesspalace/tusky/util/Resource.kt
View file

@ -1,14 +1,16 @@
package com.keylesspalace.tusky.util
sealed class Resource<T>(open val data: T?)
sealed interface Resource<T> {
val data: T?
}
class Loading<T>(override val data: T? = null) : Resource<T>(data)
class Loading<T>(override val data: T? = null) : Resource<T>
class Success<T>(override val data: T? = null) : Resource<T>(data)
class Success<T>(override val data: T? = null) : Resource<T>
class Error<T>(
override val data: T? = null,
val errorMessage: String? = null,
var consumed: Boolean = false,
val cause: Throwable? = null
) : Resource<T>(data)
) : Resource<T>