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flows extensions

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InsanusMokrassar
2022-09-23 12:41:07 +06:00
parent b7934cf357
commit be52871de8
3 changed files with 20 additions and 5 deletions
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16
coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/FlowFlatten.kt
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@@ -1,6 +1,8 @@
package dev.inmo.micro_utils.coroutines
import kotlinx.coroutines.flow.*
import kotlin.js.JsName
import kotlin.jvm.JvmName
inline fun <T, R> Flow<Flow<T>>.flatMap(
crossinline mapper: suspend (T) -> R
@@ -12,6 +14,8 @@ inline fun <T, R> Flow<Flow<T>>.flatMap(
}
}
@JsName("flatMapIterable")
@JvmName("flatMapIterable")
inline fun <T, R> Flow<Iterable<T>>.flatMap(
crossinline mapper: suspend (T) -> R
) = map {
@@ -20,12 +24,16 @@ inline fun <T, R> Flow<Iterable<T>>.flatMap(
inline fun <T, R> Flow<Flow<T>>.flatMapNotNull(
crossinline mapper: suspend (T) -> R
) = flatMap(mapper).filterNot { it == null }
) = flatMap(mapper).takeNotNull()
@JsName("flatMapNotNullIterable")
@JvmName("flatMapNotNullIterable")
inline fun <T, R> Flow<Iterable<T>>.flatMapNotNull(
crossinline mapper: suspend (T) -> R
) = flatMap(mapper).filterNot { it == null }
fun <T> Flow<Iterable<T>>.flatten() = flatMap { it }
) = flatMap(mapper).takeNotNull()
fun <T> Flow<Flow<T>>.flatten() = flatMap { it }
@JsName("flattenIterable")
@JvmName("flattenIterable")
fun <T> Flow<Iterable<T>>.flatten() = flatMap { it }

6
coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/FlowNullables.kt Normal file
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@@ -0,0 +1,6 @@
package dev.inmo.micro_utils.coroutines
import kotlinx.coroutines.flow.*
fun <T> Flow<T>.takeNotNull() = mapNotNull { it }
fun <T> Flow<T>.filterNotNull() = takeNotNull()