Introduced base PackageFragmentDescriptorImpl class,

compiler/frontend/src/org/jetbrains/jet/lang/resolve/lazy/descriptors/LazyPackageDescriptor.java

@@ -31,11 +31,9 @@ import org.jetbrains.jet.lang.resolve.name.FqName;
 import org.jetbrains.jet.lang.resolve.scopes.JetScope;
 import org.jetbrains.jet.lang.types.TypeSubstitutor;
 
-public class LazyPackageDescriptor extends DeclarationDescriptorImpl implements LazyEntity, PackageFragmentDescriptor {
+public class LazyPackageDescriptor extends PackageFragmentDescriptorImpl implements LazyEntity {
     private final ResolveSession resolveSession;
-    private final ModuleDescriptor module;
     private final JetScope memberScope;
-    private final FqName fqName;
     private final PackageMemberDeclarationProvider declarationProvider;
 
     public LazyPackageDescriptor(
@@ -44,10 +42,8 @@ public class LazyPackageDescriptor extends DeclarationDescriptorImpl implements
             @NotNull ResolveSession resolveSession,
             @NotNull PackageMemberDeclarationProvider declarationProvider
     ) {
-        super(Annotations.EMPTY, fqName.shortNameOrSpecial());
+        super(module, fqName);
         this.resolveSession = resolveSession;
-        this.module = module;
-        this.fqName = fqName;
         this.declarationProvider = declarationProvider;
 
         this.memberScope = new LazyPackageMemberScope(resolveSession, declarationProvider, this);
@@ -63,29 +59,6 @@ public class LazyPackageDescriptor extends DeclarationDescriptorImpl implements
         return memberScope;
     }
 
-    @NotNull
-    @Override
-    public ModuleDescriptor getContainingDeclaration() {
-        return module;
-    }
-
-    @Nullable
-    @Override
-    public DeclarationDescriptor substitute(@NotNull TypeSubstitutor substitutor) {
-        return this;
-    }
-
-    @Override
-    public <R, D> R accept(DeclarationDescriptorVisitor<R, D> visitor, D data) {
-        return visitor.visitPackageFragmentDescriptor(this, data);
-    }
-
-    @NotNull
-    @Override
-    public FqName getFqName() {
-        return fqName;
-    }
-
     @Override
     public void forceResolveAllContents() {
         ForceResolveUtil.forceResolveAllContents(memberScope);

core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/lazy/descriptors/LazyJavaPackageFragment.kt

@@ -17,6 +17,7 @@ import org.jetbrains.jet.lang.descriptors.PackageFragmentProvider
 import org.jetbrains.jet.lang.descriptors.annotations.Annotations
 import org.jetbrains.jet.lang.resolve.java.descriptor.JavaClassStaticsPackageFragmentDescriptor
 import org.jetbrains.jet.lang.resolve.java.descriptor.JavaClassDescriptor
+import org.jetbrains.jet.lang.descriptors.PackageFragmentDescriptorImpl
 
 class LazyPackageFragmentForJavaPackage(
         c: LazyJavaResolverContext,
@@ -45,19 +46,13 @@ class LazyPackageFragmentForJavaClass(
 abstract class LazyJavaPackageFragment(
         protected val c: LazyJavaResolverContext,
         containingDeclaration: ModuleDescriptor,
-        private val _fqName: FqName,
+        fqName: FqName,
         createMemberScope: LazyJavaPackageFragment.() -> LazyJavaPackageFragmentScope
-) : DeclarationDescriptorNonRootImpl(containingDeclaration, Annotations.EMPTY, _fqName.shortNameOrSpecial()),
+) : PackageFragmentDescriptorImpl(containingDeclaration, fqName),
     JavaPackageFragmentDescriptor, LazyJavaDescriptor
 {
     private val _memberScope = createMemberScope()
     override fun getMemberScope(): LazyJavaPackageFragmentScope = _memberScope
 
-    override fun getFqName() = _fqName
-
-    override fun <R, D> accept(visitor: DeclarationDescriptorVisitor<R, D>, data: D) = visitor.visitPackageFragmentDescriptor(this, data) as R
-
-    override fun substitute(substitutor: TypeSubstitutor) = this
-
     override fun toString() = "lazy java package fragment: " + getFqName()
 }

core/descriptors/src/org/jetbrains/jet/lang/descriptors/PackageFragmentDescriptorImpl.kt

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2010-2014 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 org.jetbrains.jet.lang.descriptors
+
+import org.jetbrains.jet.lang.descriptors.impl.DeclarationDescriptorNonRootImpl
+import org.jetbrains.jet.lang.resolve.name.FqName
+import org.jetbrains.jet.lang.descriptors.annotations.Annotations
+import org.jetbrains.jet.lang.types.TypeSubstitutor
+
+public abstract class PackageFragmentDescriptorImpl(
+        module: ModuleDescriptor,
+        val _fqName: FqName
+) : DeclarationDescriptorNonRootImpl(module, Annotations.EMPTY, _fqName.shortNameOrSpecial()), PackageFragmentDescriptor {
+    override fun substitute(substitutor: TypeSubstitutor): DeclarationDescriptor? = this
+
+    override fun <R, D> accept(visitor: DeclarationDescriptorVisitor<R, D>, data: D): R =
+            visitor.visitPackageFragmentDescriptor(this, data) as R
+
+    override fun getContainingDeclaration(): ModuleDescriptor {
+        return super<DeclarationDescriptorNonRootImpl>.getContainingDeclaration() as ModuleDescriptor
+    }
+
+    override fun getFqName(): FqName = _fqName
+}

core/descriptors/src/org/jetbrains/jet/lang/descriptors/impl/MutablePackageFragmentDescriptor.java

@@ -18,10 +18,7 @@ package org.jetbrains.jet.lang.descriptors.impl;
 
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
-import org.jetbrains.jet.lang.descriptors.DeclarationDescriptorVisitor;
-import org.jetbrains.jet.lang.descriptors.ModuleDescriptor;
-import org.jetbrains.jet.lang.descriptors.PackageFragmentDescriptor;
+import org.jetbrains.jet.lang.descriptors.*;
 import org.jetbrains.jet.lang.descriptors.annotations.Annotations;
 import org.jetbrains.jet.lang.resolve.name.FqName;
 import org.jetbrains.jet.lang.resolve.scopes.JetScope;
@@ -30,52 +27,24 @@ import org.jetbrains.jet.lang.resolve.scopes.WritableScope;
 import org.jetbrains.jet.lang.resolve.scopes.WritableScopeImpl;
 import org.jetbrains.jet.lang.types.TypeSubstitutor;
 
-public class MutablePackageFragmentDescriptor extends DeclarationDescriptorImpl implements PackageFragmentDescriptor {
-
-    private final ModuleDescriptor module;
-    private final FqName fqName;
+public class MutablePackageFragmentDescriptor extends PackageFragmentDescriptorImpl {
     private final WritableScope scope;
     private final PackageLikeBuilder builder;
 
     public MutablePackageFragmentDescriptor(@NotNull ModuleDescriptor module, @NotNull FqName fqName) {
-        super(Annotations.EMPTY, fqName.shortNameOrSpecial());
-        this.module = module;
-        this.fqName = fqName;
+        super(module, fqName);
 
         scope = new WritableScopeImpl(JetScope.EMPTY, this, RedeclarationHandler.DO_NOTHING, "Members of " + fqName + " in " + module);
         scope.changeLockLevel(WritableScope.LockLevel.BOTH);
         builder = new ScopeBasedPackageLikeBuilder(this, scope);
     }
 
-    @NotNull
-    @Override
-    public ModuleDescriptor getContainingDeclaration() {
-        return module;
-    }
-
-    @NotNull
-    @Override
-    public FqName getFqName() {
-        return fqName;
-    }
-
     @NotNull
     @Override
     public WritableScope getMemberScope() {
         return scope;
     }
 
-    @Nullable
-    @Override
-    public DeclarationDescriptor substitute(@NotNull TypeSubstitutor substitutor) {
-        return this;
-    }
-
-    @Override
-    public <R, D> R accept(DeclarationDescriptorVisitor<R, D> visitor, D data) {
-        return visitor.visitPackageFragmentDescriptor(this, data);
-    }
-
     @NotNull
     public PackageLikeBuilder getBuilder() {
         return builder;

core/descriptors/src/org/jetbrains/jet/lang/types/lang/BuiltinsPackageFragment.java

@@ -4,17 +4,17 @@ import kotlin.Function0;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.jet.descriptors.serialization.*;
-import org.jetbrains.jet.descriptors.serialization.descriptors.Deserializers;
 import org.jetbrains.jet.descriptors.serialization.descriptors.DeserializedPackageMemberScope;
+import org.jetbrains.jet.descriptors.serialization.descriptors.Deserializers;
 import org.jetbrains.jet.descriptors.serialization.descriptors.MemberFilter;
-import org.jetbrains.jet.lang.descriptors.*;
-import org.jetbrains.jet.lang.descriptors.annotations.Annotations;
-import org.jetbrains.jet.lang.descriptors.impl.DeclarationDescriptorImpl;
+import org.jetbrains.jet.lang.descriptors.ModuleDescriptor;
+import org.jetbrains.jet.lang.descriptors.PackageFragmentDescriptor;
+import org.jetbrains.jet.lang.descriptors.PackageFragmentDescriptorImpl;
+import org.jetbrains.jet.lang.descriptors.PackageFragmentProvider;
 import org.jetbrains.jet.lang.descriptors.impl.MutablePackageFragmentDescriptor;
 import org.jetbrains.jet.lang.resolve.name.FqName;
 import org.jetbrains.jet.lang.resolve.name.Name;
 import org.jetbrains.jet.lang.resolve.scopes.JetScope;
-import org.jetbrains.jet.lang.types.TypeSubstitutor;
 import org.jetbrains.jet.storage.NotNullLazyValue;
 import org.jetbrains.jet.storage.StorageManager;
 
@@ -26,15 +26,13 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
-class BuiltinsPackageFragment extends DeclarationDescriptorImpl implements PackageFragmentDescriptor {
+class BuiltinsPackageFragment extends PackageFragmentDescriptorImpl {
     private final DeserializedPackageMemberScope members;
     private final NameResolver nameResolver;
-    private final ModuleDescriptor module;
     private final PackageFragmentProvider packageFragmentProvider;
 
     public BuiltinsPackageFragment(@NotNull StorageManager storageManager, @NotNull ModuleDescriptor module) {
-        super(Annotations.EMPTY, KotlinBuiltIns.BUILT_INS_PACKAGE_NAME);
-        this.module = module;
+        super(module, KotlinBuiltIns.BUILT_INS_PACKAGE_FQ_NAME);
         nameResolver = NameSerializationUtil.deserializeNameResolver(getStream(BuiltInsSerializationUtil.getNameTableFilePath(getFqName())));
 
         packageFragmentProvider = new BuiltinsPackageFragmentProvider();
@@ -67,29 +65,6 @@ class BuiltinsPackageFragment extends DeclarationDescriptorImpl implements Packa
         return packageFragmentProvider;
     }
 
-    @NotNull
-    @Override
-    public ModuleDescriptor getContainingDeclaration() {
-        return module;
-    }
-
-    @Nullable
-    @Override
-    public DeclarationDescriptor substitute(@NotNull TypeSubstitutor substitutor) {
-        return this;
-    }
-
-    @Override
-    public <R, D> R accept(DeclarationDescriptorVisitor<R, D> visitor, D data) {
-        return visitor.visitPackageFragmentDescriptor(this, data);
-    }
-
-    @NotNull
-    @Override
-    public FqName getFqName() {
-        return KotlinBuiltIns.BUILT_INS_PACKAGE_FQ_NAME;
-    }
-
     @NotNull
     private static InputStream getStream(@NotNull String path) {
         InputStream stream = getStreamNullable(path);
@@ -105,7 +80,7 @@ class BuiltinsPackageFragment extends DeclarationDescriptorImpl implements Packa
     }
 
     private class BuiltinsPackageFragmentProvider implements PackageFragmentProvider {
-        private final PackageFragmentDescriptor rootPackage = new MutablePackageFragmentDescriptor(module, FqName.ROOT);
+        private final PackageFragmentDescriptor rootPackage = new MutablePackageFragmentDescriptor(getContainingDeclaration(), FqName.ROOT);
 
         @NotNull
         @Override