001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.jet.lang.resolve;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.ModuleDescriptor;
021    import org.jetbrains.jet.lang.descriptors.PackageViewDescriptor;
022    import org.jetbrains.jet.lang.descriptors.impl.SubpackagesScope;
023    import org.jetbrains.jet.lang.psi.JetElement;
024    import org.jetbrains.jet.lang.resolve.name.FqName;
025    import org.jetbrains.jet.lang.resolve.name.SpecialNames;
026    import org.jetbrains.jet.lang.resolve.scopes.JetScope;
027    import org.jetbrains.jet.lang.resolve.scopes.receivers.ReceiverValue;
028    import org.jetbrains.jet.lang.types.PackageType;
029    
030    public class JetModuleUtil {
031        public static PackageType getRootPackageType(JetElement expression) {
032            // TODO: this is a stub: at least the modules' root packages must be indexed here
033            return new PackageType(SpecialNames.ROOT_PACKAGE, JetScope.EMPTY, ReceiverValue.NO_RECEIVER);
034        }
035    
036        public static JetScope getSubpackagesOfRootScope(@NotNull ModuleDescriptor module) {
037            return getRootPackageScope(module, /* scopeIncludingMembers = */ false);
038        }
039    
040        public static JetScope getImportsResolutionScope(ModuleDescriptor module, boolean inRootPackage) {
041            return getRootPackageScope(module, /* scopeIncludingMembers = */ inRootPackage);
042        }
043    
044        private static JetScope getRootPackageScope(ModuleDescriptor module, boolean scopeIncludingMembers) {
045            PackageViewDescriptor rootPackage = module.getPackage(FqName.ROOT);
046            assert rootPackage != null : "Couldn't find root package for " + module;
047    
048            return scopeIncludingMembers ? rootPackage.getMemberScope() : new SubpackagesScope(rootPackage);
049        }
050    }