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KT-20357: Add sample for reduce, reduceRight and their indexed counterparts

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Tillmann Berg
2019-12-07 00:08:24 +01:00
committed by Ilya Gorbunov
parent 6d092b5f71
commit 95300ae31d
7 changed files with 150 additions and 0 deletions
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libraries/stdlib/common/src/generated/_Strings.kt
+8
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@@ -1168,6 +1168,8 @@ public inline fun <S : CharSequence> S.onEach(action: (Char) -> Unit): S {
/**
* Accumulates value starting with the first character and applying [operation] from left to right to current accumulator value and each character.
*
* @sample samples.collections.Collections.Aggregates.reduce
*/
public inline fun CharSequence.reduce(operation: (acc: Char, Char) -> Char): Char {
if (isEmpty())
@@ -1184,6 +1186,8 @@ public inline fun CharSequence.reduce(operation: (acc: Char, Char) -> Char): Cha
* to current accumulator value and each character with its index in the original char sequence.
* @param [operation] function that takes the index of a character, current accumulator value
* and the character itself and calculates the next accumulator value.
*
* @sample samples.collections.Collections.Aggregates.reduce
*/
public inline fun CharSequence.reduceIndexed(operation: (index: Int, acc: Char, Char) -> Char): Char {
if (isEmpty())
@@ -1214,6 +1218,8 @@ public inline fun CharSequence.reduceOrNull(operation: (acc: Char, Char) -> Char
/**
* Accumulates value starting with last character and applying [operation] from right to left to each character and current accumulator value.
*
* @sample samples.collections.Collections.Aggregates.reduceRight
*/
public inline fun CharSequence.reduceRight(operation: (Char, acc: Char) -> Char): Char {
var index = lastIndex
@@ -1230,6 +1236,8 @@ public inline fun CharSequence.reduceRight(operation: (Char, acc: Char) -> Char)
* to each character with its index in the original char sequence and current accumulator value.
* @param [operation] function that takes the index of a character, the character itself
* and current accumulator value, and calculates the next accumulator value.
*
* @sample samples.collections.Collections.Aggregates.reduceRight
*/
public inline fun CharSequence.reduceRightIndexed(operation: (index: Int, Char, acc: Char) -> Char): Char {
var index = lastIndex