com.google.protobuf.DslMap.kt Maven / Gradle / Ivy
package com.google.protobuf.kotlin
/**
* A simple wrapper around a [Map] with an extra generic parameter that can be used to disambiguate
* extension methods.
*
* This class is used by Kotlin protocol buffer extensions, and its constructor is public only
* because generated message code is in a different compilation unit. Others should not use this
* class directly in any way.
*/
@Suppress("unused") // the unused type parameter
class DslMap @OnlyForUseByGeneratedProtoCode constructor(
private val delegate: Map
) : Map by delegate {
// We allocate the wrappers on calls to get, not with lazy {...}, because lazy allocates
// a few objects up front, and any kind of query operation on this object should be rare.
override val entries: Set>
get() = UnmodifiableMapEntries(delegate.entries)
override val keys: Set
get() = UnmodifiableSet(delegate.keys)
override val values: Collection
get() = UnmodifiableCollection(delegate.values)
override fun equals(other: Any?): Boolean = delegate == other
override fun hashCode(): Int = delegate.hashCode()
override fun toString(): String = delegate.toString()
}