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Make emptyMap upperbound to be Any? rather than Any.

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#KT-9963
This commit is contained in:
Ilya Gorbunov
2015-11-11 01:28:25 +03:00
parent 6f2fb3f9aa
commit 5b484f1e05
2 changed files with 9 additions and 5 deletions
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libraries/stdlib/src/kotlin/collections/Maps.kt
+5 -5
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@@ -6,7 +6,7 @@ package kotlin
import java.io.Serializable
import java.util.*
private object EmptyMap : Map<Any, Nothing>, Serializable {
private object EmptyMap : Map<Any?, Nothing>, Serializable {
override fun equals(other: Any?): Boolean = other is Map<*,*> && other.isEmpty()
override fun hashCode(): Int = 0
override fun toString(): String = "{}"
@@ -14,11 +14,11 @@ private object EmptyMap : Map<Any, Nothing>, Serializable {
override val size: Int get() = 0
override fun isEmpty(): Boolean = true
override fun containsKey(key: Any): Boolean = false
override fun containsKey(key: Any?): Boolean = false
override fun containsValue(value: Nothing): Boolean = false
override fun get(key: Any): Nothing? = null
override val entries: Set<Map.Entry<Any, Nothing>> get() = EmptySet
override val keys: Set<Any> get() = EmptySet
override fun get(key: Any?): Nothing? = null
override val entries: Set<Map.Entry<Any?, Nothing>> get() = EmptySet
override val keys: Set<Any?> get() = EmptySet
override val values: Collection<Nothing> get() = EmptyList
private fun readResolve(): Any = EmptyMap