io.github.freya022.botcommands.internal.commands.autobuilder.metadata.CommandFunctionMetadata.kt Maven / Gradle / Ivy

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A Kotlin-first (and Java) framework that makes creating Discord bots a piece of cake, using the JDA library.

There is a newer version: 3.0.0-alpha.18

package io.github.freya022.botcommands.internal.commands.autobuilder.metadata

import io.github.freya022.botcommands.api.commands.CommandPath
import io.github.freya022.botcommands.api.core.utils.isSubclassOf
import io.github.freya022.botcommands.internal.core.ClassPathFunction
import io.github.freya022.botcommands.internal.utils.requireAt
import kotlin.reflect.KClass

internal abstract class CommandFunctionMetadata(
    private val classPathFunction: ClassPathFunction,
    instanceType: KClass,
    val annotation: A,
    val path: CommandPath
) : MetadataFunctionHolder {
    final override val func get() = classPathFunction.function

    init {
        requireAt(classPathFunction.clazz.isSubclassOf(instanceType), func) {
            "Declaring class must extend ${instanceType.simpleName}"
        }
    }

    @Suppress("UNCHECKED_CAST")
    val instance: T
        get() = classPathFunction.instance as T
}