| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package com.google.protobuf.kotlin |
| |
| /** Wraps an [Iterator] and makes it unmodifiable even from Java. */ |
| internal class UnmodifiableIterator<E>(delegate: Iterator<E>) : Iterator<E> by delegate |
| |
| /** Wraps a [ListIterator] and makes it unmodifiable even from Java. */ |
| internal class UnmodifiableListIterator<E>(delegate: ListIterator<E>) : ListIterator<E> by delegate |
| |
| /** Wraps a [Collection] and makes it unmodifiable even from Java. */ |
| internal open class UnmodifiableCollection<E>(private val delegate: Collection<E>) : |
| Collection<E> by delegate { |
| override fun iterator(): Iterator<E> = UnmodifiableIterator(delegate.iterator()) |
| } |
| |
| /** Wraps a [Set] and makes it unmodifiable even from Java. */ |
| internal class UnmodifiableSet<E>(delegate: Collection<E>) : |
| UnmodifiableCollection<E>(delegate), Set<E> |
| |
| /** Wraps a [Map.Entry] and makes it unmodifiable even from Java. */ |
| internal class UnmodifiableMapEntry<K, V>(delegate: Map.Entry<K, V>) : Map.Entry<K, V> by delegate |
| |
| /** Wraps a [Set] of map entries and makes it unmodifiable even from Java. */ |
| internal class UnmodifiableMapEntries<K, V>(private val delegate: Set<Map.Entry<K, V>>) : |
| UnmodifiableCollection<Map.Entry<K, V>>(delegate), Set<Map.Entry<K, V>> { |
| |
| // Is this overkill? Probably. |
| |
| override fun iterator(): Iterator<Map.Entry<K, V>> { |
| val itr = delegate.iterator() |
| return object : Iterator<Map.Entry<K, V>> by itr { |
| override fun next(): Map.Entry<K, V> = UnmodifiableMapEntry(itr.next()) |
| } |
| } |
| } |