Rename toMap and toMapBy to associate and associateBy

This commit is contained in:
Ilya Gorbunov
2016-01-20 07:11:16 +03:00
parent 45c9cc4add
commit 8224a4e186
11 changed files with 622 additions and 416 deletions
+48 -33
View File
@@ -913,6 +913,46 @@ public fun Collection<Short>.toShortArray(): ShortArray {
return result
}
/**
* Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given collection.
* If any of two pairs would have the same key the last one gets added to the map.
*/
public inline fun <T, K, V> Iterable<T>.associate(transform: (T) -> Pair<K, V>): Map<K, V> {
val capacity = (collectionSizeOrDefault(10)/.75f) + 1
val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
for (element in this) {
result += transform(element)
}
return result
}
/**
* Returns a [Map] containing the elements from the given collection indexed by the key
* returned from [keySelector] function applied to each element.
* If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
*/
public inline fun <T, K> Iterable<T>.associateBy(keySelector: (T) -> K): Map<K, T> {
val capacity = (collectionSizeOrDefault(10)/.75f) + 1
val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
for (element in this) {
result.put(keySelector(element), element)
}
return result
}
/**
* Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given collection.
* If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
*/
public inline fun <T, K, V> Iterable<T>.associateBy(keySelector: (T) -> K, valueTransform: (T) -> V): Map<K, V> {
val capacity = (collectionSizeOrDefault(10)/.75f) + 1
val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
for (element in this) {
result.put(keySelector(element), valueTransform(element))
}
return result
}
/**
* Returns an [ArrayList] of all elements.
*/
@@ -957,50 +997,25 @@ public fun <T> Iterable<T>.toList(): List<T> {
* Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given collection.
* If any two elements would have the same key returned by [selector] the last one gets added to the map.
*/
@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
public inline fun <T, K, V> Iterable<T>.toMap(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
return toMapBy(selector, transform)
return associateBy(selector, transform)
}
/**
* Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given collection.
* If any of two pairs would have the same key the last one gets added to the map.
*/
@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
@kotlin.jvm.JvmName("toMapOfPairs")
public inline fun <T, K, V> Iterable<T>.toMap(transform: (T) -> Pair<K, V>): Map<K, V> {
val capacity = (collectionSizeOrDefault(10)/.75f) + 1
val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
for (element in this) {
result += transform(element)
}
return result
return associate(transform)
}
/**
* Returns a [Map] containing the elements from the given collection indexed by the key
* returned from [selector] function applied to each element.
* If any two elements would have the same key returned by [selector] the last one gets added to the map.
*/
@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
public inline fun <T, K> Iterable<T>.toMapBy(selector: (T) -> K): Map<K, T> {
val capacity = (collectionSizeOrDefault(10)/.75f) + 1
val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
for (element in this) {
result.put(selector(element), element)
}
return result
return associateBy(selector)
}
/**
* Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given collection.
* If any two elements would have the same key returned by [selector] the last one gets added to the map.
*/
@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
public inline fun <T, K, V> Iterable<T>.toMapBy(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
val capacity = (collectionSizeOrDefault(10)/.75f) + 1
val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
for (element in this) {
result.put(selector(element), transform(element))
}
return result
return associateBy(selector, transform)
}
/**