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• ApplicationExtensionDescriptor.kt

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org.jetbrains.kotlin.extensions.ApplicationExtensionDescriptor.kt Maven / Gradle / Ivy

/*
 * Copyright 2010-2018 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.extensions

import com.intellij.openapi.extensions.ExtensionPoint
import com.intellij.openapi.extensions.ExtensionPointName
import com.intellij.openapi.extensions.Extensions

open class ApplicationExtensionDescriptor(name: String, private val extensionClass: Class) {
    val extensionPointName: ExtensionPointName = ExtensionPointName.create(name)

    fun registerExtensionPoint() {
        Extensions.getRootArea().registerExtensionPoint(
            extensionPointName.name,
            extensionClass.name,
            ExtensionPoint.Kind.INTERFACE
        )
    }

    fun registerExtension(extension: T) {
        Extensions.getRootArea().getExtensionPoint(extensionPointName).registerExtension(extension)
    }

    fun getInstances(): List {
        val projectArea = Extensions.getRootArea()
        if (!projectArea.hasExtensionPoint(extensionPointName.name)) return listOf()

        return projectArea.getExtensionPoint(extensionPointName).extensions.toList()
    }
}