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• utils.kt

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org.jetbrains.kotlin.lombok.utils.utils.kt Maven / Gradle / Ivy

/*
 * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
 * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
 */

package org.jetbrains.kotlin.lombok.utils

import java.util.*

@Suppress("UNCHECKED_CAST")
fun  Collection.collectWithNotNull(f: (E) -> R?): List> =
    map { it to f(it) }.filter { it.second != null } as List>

fun String?.trimToNull(): String? = this?.trim()?.takeIf { it.isNotEmpty() }

//because capitalize from stdlib is deprecated
fun String.capitalize(): String = replaceFirstChar { if (it.isLowerCase()) it.titlecase(Locale.getDefault()) else it.toString() }

fun String.decapitalize(): String = replaceFirstChar { if (it.isUpperCase()) it.lowercase(Locale.getDefault()) else it.toString() }