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RinniSwift/LRUCacheRetrieveObject.swift

Last active January 20, 2021 02:59
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LRUCacheRetrieveObject.swift
class LRUCache<T: Hashable, U> {
// ...
/// Returns the element at the specified key. Nil if it doesn't exist.
func retrieveObject(at key: T) -> U? {
guard let existingNode = dictionary[key] else {
return nil
}
linkedList.moveToHead(node: existingNode)
return existingNode.payload.value
}
}
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