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;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.NamespaceDescriptor;
021    import org.jetbrains.jet.lang.resolve.BindingTrace;
022    import org.jetbrains.jet.lang.resolve.scopes.WritableScope;
023    
024    public interface ModuleConfiguration {
025        ModuleConfiguration EMPTY = new ModuleConfiguration() {
026    
027            @Override
028            public void extendNamespaceScope(@NotNull BindingTrace trace, @NotNull NamespaceDescriptor namespaceDescriptor, @NotNull WritableScope namespaceMemberScope) {
029            }
030    
031            @Override
032            public String toString() {
033                return "EMPTY";
034            }
035        };
036    
037        /**
038         * This method is called every time a namespace descriptor is created. Use it to add extra descriptors to the namespace, e.g. merge a
039         * Java package with a Kotlin one
040         */
041        void extendNamespaceScope(@NotNull BindingTrace trace, @NotNull NamespaceDescriptor namespaceDescriptor, @NotNull WritableScope namespaceMemberScope);
042    }