72 lines
2.6 KiB
Kotlin
72 lines
2.6 KiB
Kotlin
package net.shadowfacts.forgelin
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import net.minecraftforge.fml.common.FMLModContainer
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import net.minecraftforge.fml.common.ILanguageAdapter
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import net.minecraftforge.fml.common.ModContainer
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import net.minecraftforge.fml.relauncher.Side
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import org.apache.logging.log4j.LogManager
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import java.lang.reflect.Field
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import java.lang.reflect.Method
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/**
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* Kotlin implementation of FML's ILanguageAdapter.
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*
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* Use by setting <pre>modLanguageAdapter = "io.drakon.forgelinFR.KotlinAdapter"</pre> in the Mod annotation
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* (Forge 1.8-11.14.1.1371 or above required).
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*
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* @author Arkan <arkan@drakon.io>
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*/
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class KotlinAdapter : ILanguageAdapter {
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private val log = LogManager.getLogger("ILanguageAdapter/Kotlin")
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override fun supportsStatics(): Boolean {
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return false
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}
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override fun setProxy(target: Field, proxyTarget: Class<*>, proxy: Any) {
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log.debug("Setting proxy: {}.{} -> {}", target.declaringClass.simpleName, target.name, proxy)
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if (proxyTarget.fields.any { x -> x.name.equals("INSTANCE") }) {
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// Singleton
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try {
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log.debug("Setting proxy on INSTANCE; singleton target.")
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val obj = proxyTarget.getField("INSTANCE").get(null)
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target.set(obj, proxy)
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} catch (ex: Exception) {
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throw KotlinAdapterException(ex)
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}
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} else {
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//TODO Log?
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target.set(proxyTarget, proxy)
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}
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}
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override fun getNewInstance(container: FMLModContainer?, objectClass: Class<*>, classLoader: ClassLoader, factoryMarkedAnnotation: Method?): Any? {
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log.debug("FML has asked for {} to be constructed...", objectClass.simpleName)
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try {
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// Try looking for an object type
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val f = objectClass.getField("INSTANCE")
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val obj = f.get(null) ?: throw NullPointerException()
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log.debug("Found an object INSTANCE reference in {}, using that. ({})", objectClass.simpleName, obj)
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return obj
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} catch (ex: Exception) {
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// Try looking for a class type
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log.debug("Failed to get object reference, trying class construction.")
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try {
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val obj = objectClass.newInstance() ?: throw NullPointerException()
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log.debug("Constructed an object from a class type ({}), using that. ({})", objectClass, obj)
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log.warn("Hey, you, modder who owns {} - you should be using 'object' instead of 'class' on your @Mod class.", objectClass.simpleName)
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return obj
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} catch (ex: Exception) {
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throw KotlinAdapterException(ex)
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}
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}
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}
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override fun setInternalProxies(mod: ModContainer?, side: Side?, loader: ClassLoader?) {
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// Nothing to do; FML's got this covered for Kotlin.
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}
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private class KotlinAdapterException(ex: Exception) : RuntimeException("Kotlin adapter error - do not report to Forge!", ex)
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} |