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nullable since in asFlowWithoutDelays and asTzFlowWithoutDelays

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InsanusMokrassar 2023-06-20 11:35:57 +06:00
parent 171bb687ea
commit d67be582af
2 changed files with 16 additions and 6 deletions
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8
CHANGELOG.md
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@ -2,6 +2,14 @@
## 2.1.1
* `asFlowWithoutDelays` and `asTzFlowWithoutDelays` will have nullable `since` parameters with default to `null`
to avoid any inconsistency of `Flow` idiom.
<details>
<summary>About the reason of changes</summary>
Cold flows should not contain some state by default. So, it was not right to save some `DateTime`/`DateTimeTz`
by default. Now it will not use some external state unless developers will set it manually
</details>
## 2.1.0
* Versions

14
src/commonMain/kotlin/dev/inmo/krontab/utils/SchedulerFlow.kt
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@ -18,10 +18,11 @@ import kotlinx.coroutines.isActive
* Will emit all the [KronScheduler.next] as soon as possible. In case [KronScheduler.next] return null, flow will
* be completed
*
* @param since Will be used as the first parameter for [KronScheduler.next] fun
* @param since Will be used as the first parameter for [KronScheduler.next] fun. If passed null, `flow`
* will always start since the moment of collecting start
*/
fun KronScheduler.asTzFlowWithoutDelays(since: DateTimeTz = DateTime.nowLocal()): Flow<DateTimeTz> = flow {
var previous = since
fun KronScheduler.asTzFlowWithoutDelays(since: DateTimeTz? = null): Flow<DateTimeTz> = flow {
var previous = since ?: DateTime.nowLocal()
while (currentCoroutineContext().isActive) {
val next = next(previous) ?: break
emit(next)
@ -57,10 +58,11 @@ fun KronScheduler.asTzFlow(): Flow<DateTimeTz> = asTzFlowWithDelays()
* Will emit all the [KronScheduler.next] as soon as possible. In case [KronScheduler.next] return null, flow will
* be completed
*
* @param since Will be used as the first parameter for [KronScheduler.next] fun
* @param since Will be used as the first parameter for [KronScheduler.next] fun. If passed null, `flow`
* will always start since the moment of collecting start
*/
fun KronScheduler.asFlowWithoutDelays(since: DateTime = DateTime.now()): Flow<DateTime> = flow {
var previous = since
fun KronScheduler.asFlowWithoutDelays(since: DateTime? = null): Flow<DateTime> = flow {
var previous = since ?: DateTime.now()
while (currentCoroutineContext().isActive) {
val next = next(previous) ?: break
emit(next)