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package org.jetbrains.dokka.plugability
import org.jetbrains.dokka.DokkaConfiguration
data class ExtensionPoint<T : Any> internal constructor(
internal val pluginClass: String,
internal val pointName: String
) {
override fun toString() = "ExtensionPoint: $pluginClass/$pointName"
}
abstract class Extension<T : Any> internal constructor(
internal val extensionPoint: ExtensionPoint<T>,
internal val pluginClass: String,
internal val extensionName: String,
internal val action: LazyEvaluated<T>,
internal val ordering: (OrderDsl.() -> Unit)? = null,
internal val conditions: Array<DokkaConfiguration.() -> Boolean> = emptyArray(),
internal val isFallback: Boolean
) {
override fun toString() = "Extension: $pluginClass/$extensionName"
override fun equals(other: Any?) =
if (other is Extension<*>) this.pluginClass == other.pluginClass && this.extensionName == other.extensionName
else false
override fun hashCode() = listOf(pluginClass, extensionName).hashCode()
abstract fun addCondition(condition: (DokkaConfiguration.() -> Boolean)): Extension<T>
abstract fun markedAsFallback(): Extension<T>
open val condition: DokkaConfiguration.() -> Boolean
get() = { conditions.all { it(this) }}
}
class ExtensionOrdered<T : Any> internal constructor(
extensionPoint: ExtensionPoint<T>,
pluginClass: String,
extensionName: String,
action: LazyEvaluated<T>,
ordering: (OrderDsl.() -> Unit),
conditions: Array<DokkaConfiguration.() -> Boolean> = emptyArray(),
isFallback: Boolean = false
) : Extension<T>(
extensionPoint,
pluginClass,
extensionName,
action,
ordering,
conditions,
isFallback
) {
override fun addCondition(condition: DokkaConfiguration.() -> Boolean) =
ExtensionOrdered(extensionPoint, pluginClass, extensionName, action, ordering!!, conditions + condition)
override fun markedAsFallback() =
ExtensionOrdered(extensionPoint, pluginClass, extensionName, action, ordering!!, conditions, true)
}
class ExtensionUnordered<T : Any> internal constructor(
extensionPoint: ExtensionPoint<T>,
pluginClass: String,
extensionName: String,
action: LazyEvaluated<T>,
conditions: Array<DokkaConfiguration.() -> Boolean> = emptyArray(),
isFallback: Boolean = false
) : Extension<T>(
extensionPoint,
pluginClass,
extensionName,
action,
null,
conditions,
isFallback
) {
override fun addCondition(condition: DokkaConfiguration.() -> Boolean) =
ExtensionUnordered(extensionPoint, pluginClass, extensionName, action, conditions + condition)
override fun markedAsFallback() =
ExtensionUnordered(extensionPoint, pluginClass, extensionName, action, conditions, true)
}
internal data class Ordering(val previous: Set<Extension<*>>, val following: Set<Extension<*>>)
@DslMarker
annotation class ExtensionsDsl
@ExtensionsDsl
class ExtendingDSL(private val pluginClass: String, private val extensionName: String) {
infix fun <T : Any> ExtensionPoint<T>.with(action: T) =
ExtensionUnordered(this, this@ExtendingDSL.pluginClass, extensionName, LazyEvaluated.fromInstance(action))
infix fun <T : Any> ExtensionPoint<T>.providing(action: (DokkaContext) -> T) =
ExtensionUnordered(this, this@ExtendingDSL.pluginClass, extensionName, LazyEvaluated.fromRecipe(action))
infix fun <T : Any> ExtensionUnordered<T>.order(block: OrderDsl.() -> Unit) =
ExtensionOrdered(extensionPoint, pluginClass, extensionName, action, block)
infix fun <T : Any> Extension<T>.applyIf(condition: DokkaConfiguration.() -> Boolean): Extension<T> =
this.addCondition(condition)
}
@ExtensionsDsl
class OrderDsl {
internal val previous = mutableSetOf<Extension<*>>()
internal val following = mutableSetOf<Extension<*>>()
fun after(vararg extensions: Extension<*>) {
previous += extensions
}
fun before(vararg extensions: Extension<*>) {
following += extensions
}
}
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