azalea/kotlin-fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Support KClass.objectInstance for objects and companion objects

Browse Source
This commit is contained in:
Alexander Udalov
2015-07-23 18:40:24 +03:00
parent 2eb5201575
commit 6878453d44
5 changed files with 60 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
core/reflection.jvm/src/kotlin/reflect/jvm/internal/KClassImpl.kt
+16 -1
View File
@@ -19,6 +19,7 @@ package kotlin.reflect.jvm.internal
import org.jetbrains.kotlin.descriptors.ClassKind
import org.jetbrains.kotlin.descriptors.ConstructorDescriptor
import org.jetbrains.kotlin.descriptors.annotations.Annotated
import org.jetbrains.kotlin.load.java.JvmAbi
import org.jetbrains.kotlin.name.ClassId
import org.jetbrains.kotlin.resolve.scopes.ChainedScope
import org.jetbrains.kotlin.resolve.scopes.JetScope
@@ -27,7 +28,7 @@ import kotlin.reflect.KClass
import kotlin.reflect.KFunction
import kotlin.reflect.KotlinReflectionInternalError
class KClassImpl<T>(override val jClass: Class<T>) : KCallableContainerImpl(), KClass<T>, KAnnotatedElementImpl {
class KClassImpl<T : Any>(override val jClass: Class<T>) : KCallableContainerImpl(), KClass<T>, KAnnotatedElementImpl {
val descriptor by ReflectProperties.lazySoft {
val classId = classId
@@ -92,6 +93,20 @@ class KClassImpl<T>(override val jClass: Class<T>) : KCallableContainerImpl(), K
KFunctionImpl(this, it) as KFunction<T>
}
@suppress("UNCHECKED_CAST")
override val objectInstance: T? by ReflectProperties.lazy {
val descriptor = descriptor
if (descriptor.kind != ClassKind.OBJECT) return@lazy null
val field = if (descriptor.isCompanionObject) {
jClass.enclosingClass.getDeclaredField(descriptor.name.asString())
}
else {
jClass.getDeclaredField(JvmAbi.INSTANCE_FIELD)
}
field.get(null) as T
}
override fun equals(other: Any?): Boolean =
other is KClassImpl<*> && jClass == other.jClass