org.fernice.flare.style.Origin.kt Maven / Gradle / Ivy

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/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

package org.fernice.flare.style

import org.fernice.std.PerEnumLazy

enum class Origin {

    UserAgent,

    User,

    Author;

    fun selfAndPrevious(): Iterator {
        val indices = ordinal downTo 0
        return OriginIterator(indices.iterator())
    }
}

private class OriginIterator(
    private val iterator: Iterator,
) : Iterator {

    override fun hasNext(): Boolean = iterator.hasNext()
    override fun next(): Origin = Origin.entries[iterator.next()]
}

typealias PerOrigin = PerEnumLazy

fun  PerOrigin(initializer: (Origin) -> E): PerOrigin = PerEnumLazy(initializer)