Common
```kotlin
class SlotIdsSet
internal constructor(
@PublishedApi
internal val set: MutableOrderedScatterSet = mutableOrderedScatterSetOf()
) : Collection
```
Set containing slot ids currently available to reuse. Used by `getSlotsToRetain`. The set
retains the insertion order of its elements, guaranteeing stable iteration order.
This class works exactly as `MutableSet`, but doesn't allow to add new items in it.
## Functions
remove
```kotlin
fun remove(slotId: Any?): Boolean
```
Removes a `slotId` from this set, if it is present.
#### Returns
| | |
| --- | --- |
| | `true` if the slot id was removed, `false` if the set was not modified. |
removeAll
```kotlin
fun removeAll(slotIds: Collection): Boolean
```
Removes all slot ids from `slotIds` that are also contained in this set.
#### Returns
| | |
| --- | --- |
| | `true` if any slot id was removed, `false` if the set was not modified. |
removeAll
```kotlin
fun removeAll(predicate: (Any?) -> Boolean): Boolean
```
Removes all slot ids that match the given `predicate`.
#### Returns
| | |
| --- | --- |
| | `true` if any slot id was removed, `false` if the set was not modified. |
retainAll
```kotlin
fun retainAll(slotIds: Collection): Boolean
```
Retains only the slot ids that are contained in `slotIds`.
#### Returns
| | |
| --- | --- |
| | `true` if any slot id was removed, `false` if the set was not modified. |
retainAll
```kotlin
fun retainAll(predicate: (Any?) -> Boolean): Boolean
```
Retains only slotIds that match the given `predicate`.
#### Returns
| | |
| --- | --- |
| | `true` if any slot id was removed, `false` if the set was not modified. |
clear
```kotlin
fun clear() = set.clear()
```
Removes all slot ids from this set.
trimToSize
```kotlin
fun trimToSize(maxSlotsToRetainForReuse: Int) = set.trimToSize(maxSlotsToRetainForReuse)
```
Remove entries until [size](/jetpack-compose/androidx.compose.ui/ui-geometry/classes/Size) equals `maxSlotsToRetainForReuse`. Entries inserted last are
removed first.
forEach
```kotlin
fun forEach(block: (Any?) -> Unit) = set.forEach(block)
```
Iterates over every element stored in this set by invoking the specified `block` lambda.
The iteration order is the same as the insertion order. It is safe to remove the element
passed to `block` during iteration.
NOTE: This method is obscured by `Collection.forEach` since it is marked with
fastForEach
```kotlin
inline fun fastForEach(block: (Any?) -> Unit) = set.forEach(block)
```
Iterates over every element stored in this set by invoking the specified `block` lambda.
The iteration order is the same as the insertion order. It is safe to remove the element
passed to `block` during iteration.
NOTE: this method was added in order to allow for a more performant forEach method. It is
necessary because [forEach](/jetpack-compose/androidx.compose.foundation/foundation/functions/forEach) is obscured by `Collection.forEach` since it is marked
with @HidesMember.