48 lines
1.3 KiB
Kotlin
48 lines
1.3 KiB
Kotlin
package dev.inmo.tgbotapi.extensions.behaviour_builder.utils
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fun interface SimpleFilter<in T> {
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suspend operator fun invoke(o: T): Boolean
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}
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/**
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* @return [SimpleFilter] which will return true in case when all the items in incoming data passed [this] filter
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*/
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fun <T> SimpleFilter<T>.listAll() = SimpleFilter<Iterable<T>> {
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it.all { this@listAll(it) }
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}
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/**
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* @return [SimpleFilter] which will return true in case when there is any item in incoming data passed [this] filter
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*/
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fun <T> SimpleFilter<T>.listAny() = SimpleFilter<Iterable<T>> {
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it.any { this@listAny(it) }
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}
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/**
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* @return [SimpleFilter] which will return true in case when there is no any item in incoming data passed [this] filter
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*/
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fun <T> SimpleFilter<T>.listNone() = SimpleFilter<Iterable<T>> {
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it.none { this@listNone(it) }
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}
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/**
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* Makes an AND (&&) operation between [this] and [other]
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*/
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operator fun <T> SimpleFilter<T>.times(other: SimpleFilter<T>) = SimpleFilter<T> {
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this(it) && other(it)
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}
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/**
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* Makes an OR (||) operation between [this] and [other]
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*/
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operator fun <T> SimpleFilter<T>.plus(other: SimpleFilter<T>) = SimpleFilter<T> {
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this(it) || other(it)
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}
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/**
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* Reverse results of [this]
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*/
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operator fun <T> SimpleFilter<T>.not() = SimpleFilter<T> {
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!this(it)
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}
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