Deprecate KPackage, to be removed later

core/builtins/src/kotlin/reflect/KPackage.kt

@@ -19,4 +19,6 @@ package kotlin.reflect
 /**
  * Represents a package and provides introspection capabilities.
  */
+@Deprecated("This class will be deleted soon because reflection on packages is going to be redesigned " +
+        "after the introduction of new kinds of runtime representations of packages on JVM.")
 public interface KPackage : KDeclarationContainer

core/reflection.jvm/src/kotlin/reflect/KPackageExtensions.kt

@@ -1,37 +0,0 @@
-/*
- * Copyright 2010-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package kotlin.reflect
-
-import kotlin.reflect.jvm.internal.KPackageImpl
-
-/**
- * Returns all non-extension properties declared in this package.
- */
-public val KPackage.properties: Collection<KProperty0<*>>
-    get() = (this as KPackageImpl)
-            .getMembers(scope, declaredOnly = false, nonExtensions = true, extensions = false)
-            .filterIsInstance<KProperty0<*>>()
-            .toList()
-
-/**
- * Returns all extension properties declared in this package.
- */
-public val KPackage.extensionProperties: Collection<KProperty1<*, *>>
-    get() = (this as KPackageImpl)
-            .getMembers(scope, declaredOnly = false, nonExtensions = false, extensions = true)
-            .filterIsInstance<KProperty1<*, *>>()
-            .toList()

core/reflection.jvm/src/kotlin/reflect/jvm/internal/ReflectionFactoryImpl.java

@@ -18,7 +18,6 @@ package kotlin.reflect.jvm.internal;
 
 import kotlin.jvm.internal.*;
 import kotlin.reflect.*;
-import org.jetbrains.kotlin.load.java.JvmAbi;
 
 /**
  * @suppress
@@ -31,12 +30,7 @@ public class ReflectionFactoryImpl extends ReflectionFactory {
     }
 
     @Override
-    public KPackage createKotlinPackage(Class javaClass) {
-        return createKotlinPackage(javaClass, JvmAbi.DEFAULT_MODULE_NAME);
-    }
-
-    @Override
-    public KPackage createKotlinPackage(Class javaClass, String moduleName) {
+    public KDeclarationContainer getOrCreateKotlinPackage(Class javaClass, String moduleName) {
         return new KPackageImpl(javaClass, moduleName);
     }
 
@@ -92,4 +86,9 @@ public class ReflectionFactoryImpl extends ReflectionFactory {
     public KClass foreignKotlinClass(Class javaClass) {
         return getOrCreateKotlinClass(javaClass);
     }
+
+    @Override
+    public KPackage createKotlinPackage(Class javaClass, String moduleName) {
+        return new KPackageImpl(javaClass, moduleName);
+    }
 }

core/reflection.jvm/src/kotlin/reflect/jvm/mapping.kt

@@ -19,24 +19,15 @@ package kotlin.reflect.jvm
 import org.jetbrains.kotlin.load.java.JvmAbi
 import java.lang.reflect.*
 import java.util.*
+import kotlin.jvm.internal.KotlinFileFacade
+import kotlin.jvm.internal.Reflection
 import kotlin.reflect.*
 import kotlin.reflect.jvm.internal.KCallableImpl
-import kotlin.reflect.jvm.internal.KPackageImpl
 import kotlin.reflect.jvm.internal.KPropertyImpl
 import kotlin.reflect.jvm.internal.KTypeImpl
 
 // Kotlin reflection -> Java reflection
 
-/**
- * Returns a Java [Class] instance that represents a Kotlin package.
- * The methods and fields of this class are generated from top level functions and properties in the Kotlin package.
- * See the [Kotlin language documentation](http://kotlinlang.org/docs/reference/java-interop.html#package-level-functions)
- * for more information.
- */
-public val KPackage.javaFacade: Class<*>
-    get() = (this as KPackageImpl).jClass
-
-
 /**
  * Returns a Java [Field] instance corresponding to the backing field of the given property,
  * or `null` if the property has no backing field.
@@ -87,31 +78,6 @@ public val KType.javaType: Type
 
 // Java reflection -> Kotlin reflection
 
-/**
- * Returns a [KPackage] instance corresponding to the Java [Class] instance.
- * The given class is generated from top level functions and properties in the Kotlin package.
- * See the [Kotlin language documentation](http://kotlinlang.org/docs/reference/java-interop.html#package-level-functions)
- * for more information.
- */
-@Deprecated("After dropping old package facades it would be impossible to retrieve package by java class")
-public val Class<*>.kotlinPackage: KPackage?
-    get() = if (getSimpleName().endsWith("Package") &&
-                getAnnotation(javaClass<kotlin.jvm.internal.KotlinPackage>()) != null) {
-        try {
-            val field = this.getField(JvmAbi.MODULE_NAME_FIELD)
-            if (field != null) {
-                KPackageImpl(this, field.get(null) as String)
-            }
-            else {
-                null
-            }
-        }
-        catch(e: NoSuchFieldException) {
-            null
-        }
-    } else null
-
-
 /**
  * Returns a [KProperty] instance corresponding to the given Java [Field] instance,
  * or `null` if this field cannot be represented by a Kotlin property
@@ -137,10 +103,7 @@ public val Method.kotlinFunction: KFunction<*>?
         if (isSynthetic) return null
 
         if (Modifier.isStatic(modifiers)) {
-            val kotlinPackage = declaringClass.kotlinPackage
-            if (kotlinPackage != null) {
-                return kotlinPackage.functions.firstOrNull { it.javaMethod == this }
-            }
+            // TODO: support file facades & multifile classes
 
             // For static bridge method generated for a jvmStatic function in the companion object, also try to find the latter
             val companion = declaringClass.kotlin.companionObject

core/runtime.jvm/src/kotlin/jvm/internal/Reflection.java

@@ -45,12 +45,8 @@ public class Reflection {
         return factory.createKotlinClass(javaClass);
     }
 
-    public static KPackage createKotlinPackage(Class javaClass) {
-        return factory.createKotlinPackage(javaClass);
-    }
-
-    public static KPackage createKotlinPackage(Class javaClass, String moduleName) {
-        return factory.createKotlinPackage(javaClass, moduleName);
+    public static KDeclarationContainer getOrCreateKotlinPackage(Class javaClass, String moduleName) {
+        return factory.getOrCreateKotlinPackage(javaClass, moduleName);
     }
 
     public static KClass getOrCreateKotlinClass(Class javaClass) {
@@ -101,6 +97,11 @@ public class Reflection {
 
     // Deprecated
 
+    @Deprecated
+    public static KPackage createKotlinPackage(Class javaClass, String moduleName) {
+        return (KPackage) factory.getOrCreateKotlinPackage(javaClass, moduleName);
+    }
+
     @Deprecated
     public static KClass foreignKotlinClass(Class javaClass) {
         return getOrCreateKotlinClass(javaClass);

core/runtime.jvm/src/kotlin/jvm/internal/ReflectionFactory.java

@@ -23,11 +23,7 @@ public class ReflectionFactory {
         return new ClassReference(javaClass);
     }
 
-    public KPackage createKotlinPackage(Class javaClass) {
-        return null;
-    }
-
-    public KPackage createKotlinPackage(Class javaClass, String moduleName) {
+    public KDeclarationContainer getOrCreateKotlinPackage(Class javaClass, String moduleName) {
         return null;
     }
 
@@ -73,4 +69,9 @@ public class ReflectionFactory {
     public KClass foreignKotlinClass(Class javaClass) {
         return new ClassReference(javaClass);
     }
+
+    @Deprecated
+    public KPackage createKotlinPackage(Class javaClass, String moduleName) {
+        return null;
+    }
 }