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In-memory storage and indexing facilities for ordered and unordered knowledge bases composed by logic clauses
There is a newer version: 1.0.4
package it.unibo.tuprolog.collections

import it.unibo.tuprolog.core.Clause
import it.unibo.tuprolog.core.Directive
import it.unibo.tuprolog.core.Rule
import it.unibo.tuprolog.core.Scope
import it.unibo.tuprolog.unify.Unificator
import kotlin.js.JsName
import kotlin.jvm.JvmStatic

interface ClauseCollection : Iterable {
    @JsName("unificator")
    val unificator: Unificator

    @JsName("directive")
    val directives: Iterable

    @JsName("rules")
    val rules: Iterable

    /** Computes the size of the [ClauseCollection] **/
    @JsName("size")
    val size: Int

    /** Tells if the [ClauseCollection] contains any [Clause] **/
    @JsName("isEmpty")
    fun isEmpty(): Boolean

    @JsName("isNonEmpty")
    fun isNonEmpty(): Boolean

    /** Tells if the [ClauseCollection] contains the given [Clause] **/
    @JsName("contains")
    operator fun contains(element: Clause): Boolean

    /** Tells if the [ClauseCollection] contains all the given [Clause] **/
    @JsName("containsAll")
    fun containsAll(elements: Iterable): Boolean

    /** Gives a freshly produced [ClauseCollection] including the given [Clause] and the content of this one **/
    @JsName("add")
    fun add(clause: Clause): ClauseCollection

    /** Gives a freshly produced [ClauseCollection] including all the given [Clause] and the content of this one **/
    @JsName("addAll")
    fun addAll(clauses: Iterable): ClauseCollection

    /** Produces a [RetrieveResult] as a consequence of the attempt at deleting the given [Clause]
     *  from this [ClauseCollection] **/
    @JsName("retrieve")
    fun retrieve(clause: Clause): RetrieveResult

    /** Produces a [RetrieveResult] as a consequence of the attempt at deleting all the given [Clause]
     *  from this [ClauseCollection] **/
    @JsName("retrieveAll")
    fun retrieveAll(clause: Clause): RetrieveResult

    override fun iterator(): Iterator

    companion object {
        /** Creates an empty [ClauseMultiSet] **/
        @JvmStatic
        @JsName("emptyMultiSet")
        fun emptyMultiSet(unificator: Unificator): ClauseMultiSet = multiSetOf(unificator, emptyList())

        /** Creates a [ClauseMultiSet] with given clauses */
        @JvmStatic
        @JsName("multiSetOf")
        fun multiSetOf(
            unificator: Unificator,
            vararg clause: Clause,
        ): ClauseMultiSet = multiSetOf(unificator, clause.asIterable())

        /** Let developers easily create a [ClauseMultiSet] programmatically while avoiding variables names clashing */
        @JvmStatic
        @JsName("multiSetOfScopes")
        fun multiSetOf(
            unificator: Unificator,
            vararg clause: Scope.() -> Clause,
        ): ClauseMultiSet =
            multiSetOf(
                unificator,
                clause.map {
                    Scope.empty(it)
                },
            )

        /** Creates a [ClauseQueue] from the given [Sequence] of [Clause] */
        @JvmStatic
        @JsName("multiSetOfSequence")
        fun multiSetOf(
            unificator: Unificator,
            clauses: Sequence,
        ): ClauseMultiSet = multiSetOf(unificator, clauses.asIterable())

        /** Creates a [ClauseQueue] from the given [Iterable] of [Clause] */
        @JvmStatic
        @JsName("multiSetOfIterable")
        fun multiSetOf(
            unificator: Unificator,
            clauses: Iterable,
        ): ClauseMultiSet = ClauseMultiSet.of(unificator, clauses)

        /** Creates an empty [ClauseQueue] **/
        @JvmStatic
        @JsName("emptyQueue")
        fun emptyQueue(unificator: Unificator): ClauseQueue = queueOf(unificator, emptyList())

        /** Creates a [ClauseQueue] with given clauses */
        @JvmStatic
        @JsName("queueOf")
        fun queueOf(
            unificator: Unificator,
            vararg clause: Clause,
        ): ClauseQueue = queueOf(unificator, clause.asIterable())

        /** Let developers easily create a [ClauseQueue] programmatically while avoiding variables names clashing */
        @JvmStatic
        @JsName("queueOfScopes")
        fun queueOf(
            unificator: Unificator,
            vararg clause: Scope.() -> Clause,
        ): ClauseQueue =
            queueOf(
                unificator,
                clause.map {
                    Scope.empty(it)
                },
            )

        /** Creates a [ClauseQueue] from the given [Sequence] of [Clause] */
        @JvmStatic
        @JsName("queueOfSequence")
        fun queueOf(
            unificator: Unificator,
            clauses: Sequence,
        ): ClauseQueue = queueOf(unificator, clauses.asIterable())

        /** Creates a [ClauseQueue] from the given [Iterable] of [Clause] */
        @JvmStatic
        @JsName("queueOfIterable")
        fun queueOf(
            unificator: Unificator,
            clauses: Iterable,
        ): ClauseQueue = ClauseQueue.of(unificator, clauses)
    }
}