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Added samples for map filtering operators (KT-20357)

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Fix map transformations sample names.
This commit is contained in:
Vladimir Kasatkin
2017-11-09 16:21:18 -05:00
committed by Ilya Gorbunov
parent dca23e339a
commit 9b49e9139c
2 changed files with 105 additions and 2 deletions
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libraries/stdlib/src/kotlin/collections/Maps.kt
+8 -2
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@@ -354,7 +354,7 @@ public fun <K, V> MutableMap<in K, in V>.putAll(pairs: Sequence<Pair<K,V>>): Uni
*
* The returned map preserves the entry iteration order of the original map.
*
* @sample samples.collections.Maps.Transforms.mapValues
* @sample samples.collections.Maps.Transformations.mapValues
*/
public inline fun <K, V, R> Map<out K, V>.mapValues(transform: (Map.Entry<K, V>) -> R): Map<K, R> {
return mapValuesTo(LinkedHashMap<K, R>(mapCapacity(size)), transform) // .optimizeReadOnlyMap()
@@ -369,7 +369,7 @@ public inline fun <K, V, R> Map<out K, V>.mapValues(transform: (Map.Entry<K, V>)
*
* The returned map preserves the entry iteration order of the original map.
*
* @sample samples.collections.Maps.Transforms.mapKeys
* @sample samples.collections.Maps.Transformations.mapKeys
*/
public inline fun <K, V, R> Map<out K, V>.mapKeys(transform: (Map.Entry<K, V>) -> R): Map<R, V> {
return mapKeysTo(LinkedHashMap<R, V>(mapCapacity(size)), transform) // .optimizeReadOnlyMap()
@@ -379,6 +379,7 @@ public inline fun <K, V, R> Map<out K, V>.mapKeys(transform: (Map.Entry<K, V>) -
* Returns a map containing all key-value pairs with keys matching the given [predicate].
*
* The returned map preserves the entry iteration order of the original map.
* @sample samples.collections.Maps.Filtering.filterKeys
*/
public inline fun <K, V> Map<out K, V>.filterKeys(predicate: (K) -> Boolean): Map<K, V> {
val result = LinkedHashMap<K, V>()
@@ -394,6 +395,7 @@ public inline fun <K, V> Map<out K, V>.filterKeys(predicate: (K) -> Boolean): Ma
* Returns a map containing all key-value pairs with values matching the given [predicate].
*
* The returned map preserves the entry iteration order of the original map.
* @sample samples.collections.Maps.Filtering.filterValues
*/
public inline fun <K, V> Map<out K, V>.filterValues(predicate: (V) -> Boolean): Map<K, V> {
val result = LinkedHashMap<K, V>()
@@ -410,6 +412,7 @@ public inline fun <K, V> Map<out K, V>.filterValues(predicate: (V) -> Boolean):
* Appends all entries matching the given [predicate] into the mutable map given as [destination] parameter.
*
* @return the destination map.
* @sample samples.collections.Maps.Filtering.filterTo
*/
public inline fun <K, V, M : MutableMap<in K, in V>> Map<out K, V>.filterTo(destination: M, predicate: (Map.Entry<K, V>) -> Boolean): M {
for (element in this) {
@@ -424,6 +427,7 @@ public inline fun <K, V, M : MutableMap<in K, in V>> Map<out K, V>.filterTo(dest
* Returns a new map containing all key-value pairs matching the given [predicate].
*
* The returned map preserves the entry iteration order of the original map.
* @sample samples.collections.Maps.Filtering.filter
*/
public inline fun <K, V> Map<out K, V>.filter(predicate: (Map.Entry<K, V>) -> Boolean): Map<K, V> {
return filterTo(LinkedHashMap<K, V>(), predicate)
@@ -433,6 +437,7 @@ public inline fun <K, V> Map<out K, V>.filter(predicate: (Map.Entry<K, V>) -> Bo
* Appends all entries not matching the given [predicate] into the given [destination].
*
* @return the destination map.
* @sample samples.collections.Maps.Filtering.filterNotTo
*/
public inline fun <K, V, M : MutableMap<in K, in V>> Map<out K, V>.filterNotTo(destination: M, predicate: (Map.Entry<K, V>) -> Boolean): M {
for (element in this) {
@@ -447,6 +452,7 @@ public inline fun <K, V, M : MutableMap<in K, in V>> Map<out K, V>.filterNotTo(d
* Returns a new map containing all key-value pairs not matching the given [predicate].
*
* The returned map preserves the entry iteration order of the original map.
* @sample samples.collections.Maps.Filtering.filterNot
*/
public inline fun <K, V> Map<out K, V>.filterNot(predicate: (Map.Entry<K, V>) -> Boolean): Map<K, V> {
return filterNotTo(LinkedHashMap<K, V>(), predicate)