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Fix JS bug with null cast

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This commit is contained in:
Alexander Nozik 2021-08-12 20:28:45 +03:00
parent a020d1545c
commit 9b8da4cdcc
1 changed files with 6 additions and 4 deletions
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10
kmath-core/src/commonMain/kotlin/space/kscience/kmath/misc/Featured.kt
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@ -16,13 +16,14 @@ public interface Featured<F : Any> {
public typealias FeatureKey<T> = KClass<out T> public typealias FeatureKey<T> = KClass<out T>
public interface Feature<F: Feature<F>> { public interface Feature<F : Feature<F>> {
/** /**
* A key used for extraction * A key used for extraction
*/ */
@Suppress("UNCHECKED_CAST") @Suppress("UNCHECKED_CAST")
public val key: FeatureKey<F> get() = this::class as FeatureKey<F> public val key: FeatureKey<F>
get() = this::class as FeatureKey<F>
} }
/** /**
@ -30,7 +31,7 @@ public interface Feature<F: Feature<F>> {
*/ */
public class FeatureSet<F : Feature<F>> private constructor(public val features: Map<FeatureKey<F>, F>) : Featured<F> { public class FeatureSet<F : Feature<F>> private constructor(public val features: Map<FeatureKey<F>, F>) : Featured<F> {
@Suppress("UNCHECKED_CAST") @Suppress("UNCHECKED_CAST")
override fun <T : F> getFeature(type: FeatureKey<T>): T? = features[type] as? T override fun <T : F> getFeature(type: FeatureKey<T>): T? = features[type]?.let { it as T }
public inline fun <reified T : F> getFeature(): T? = getFeature(T::class) public inline fun <reified T : F> getFeature(): T? = getFeature(T::class)
@ -49,6 +50,7 @@ public class FeatureSet<F : Feature<F>> private constructor(public val features:
public companion object { public companion object {
public fun <F : Feature<F>> of(vararg features: F): FeatureSet<F> = FeatureSet(features.associateBy { it.key }) public fun <F : Feature<F>> of(vararg features: F): FeatureSet<F> = FeatureSet(features.associateBy { it.key })
public fun <F : Feature<F>> of(features: Iterable<F>): FeatureSet<F> = FeatureSet(features.associateBy { it.key }) public fun <F : Feature<F>> of(features: Iterable<F>): FeatureSet<F> =
FeatureSet(features.associateBy { it.key })
} }
} }