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/*
 * Copyright (c) 2019. JetBrains s.r.o.
 * Use of this source code is governed by the MIT license that can be found in the LICENSE file.
 */

package jetbrains.datalore.base.observable.collections

object Collections {
    fun  unmodifiableCollection(collection: Collection): Collection {
        return ImmutableCollection(collection)
    }

    fun  unmodifiableList(list: List): List {
        return ImmutableList(list)
    }

    fun  unmodifiableSet(set: Set): Set {
        return ImmutableSet(set)
    }

    fun  unmodifiableMap(map: Map): Map {
        return ImmutableMap(map)
    }

    inline fun  arrayCopy(source: Array) = Array(source.size) { i -> source[i] }
}

private class ImmutableCollection(private val inner: Collection) : Collection by inner
private class ImmutableList(private val inner: List) : List by inner
private class ImmutableSet(private val inner: Set) : Set by inner
private class ImmutableMap(private val inner: Map) : Map by inner