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Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
package org.jetbrains.kotlinx.dataframe.impl.api

import com.beust.klaxon.internal.firstNotNullResult
import org.jetbrains.kotlinx.dataframe.DataColumn
import org.jetbrains.kotlinx.dataframe.DataFrame
import org.jetbrains.kotlinx.dataframe.api.asColumnGroup
Expand Down Expand Up @@ -89,3 +88,11 @@ internal fun <T> concatImpl(dataFrames: List<DataFrame<T>>): DataFrame<T> {
dataFrameOf(columns)
}.cast()
}

private inline fun <T, R : Any> Iterable<T>.firstNotNullResult(transform: (T) -> R?): R? {
for (element in this) {
val result = transform(element)
if (result != null) return result
}
return null
}
Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
package org.jetbrains.kotlinx.dataframe.impl.api

import com.beust.klaxon.internal.firstNotNullResult
import org.jetbrains.kotlinx.dataframe.DataColumn
import org.jetbrains.kotlinx.dataframe.DataFrame
import org.jetbrains.kotlinx.dataframe.api.asColumnGroup
Expand Down Expand Up @@ -89,3 +88,11 @@ internal fun <T> concatImpl(dataFrames: List<DataFrame<T>>): DataFrame<T> {
dataFrameOf(columns)
}.cast()
}

private inline fun <T, R : Any> Iterable<T>.firstNotNullResult(transform: (T) -> R?): R? {
for (element in this) {
val result = transform(element)
if (result != null) return result
}
return null
}