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Wrap state.iterator with immutable iterator #9

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Mar 18, 2024
Merged

Wrap state.iterator with immutable iterator #9

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11 changes: 10 additions & 1 deletion library/keccak/src/commonMain/kotlin/org/kotlincrypto/sponges/keccak/State.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,16 @@ public sealed class State<N: Number, T: State<N, T>>(
final override val size: Int get() = P_LEN
final override fun isEmpty(): Boolean = false
final override operator fun contains(element: N): Boolean = state.contains(element)
final override fun iterator(): Iterator<N> = state.iterator()
final override fun iterator(): Iterator<N> = object : Iterator<N> {
private val delegate = state.iterator()

override fun hasNext(): Boolean = delegate.hasNext()
override fun next(): N = delegate.next()

override fun equals(other: Any?): Boolean = delegate == other
override fun hashCode(): Int = delegate.hashCode()
override fun toString(): String = delegate.toString()
}
final override fun containsAll(elements: Collection<N>): Boolean {
elements.forEach { n ->
if (!state.contains(n)) return false
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