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.codegen;
018    
019    import com.google.common.collect.Maps;
020    import com.intellij.openapi.util.Factory;
021    import com.intellij.openapi.util.Pair;
022    import com.intellij.util.containers.ContainerUtil;
023    import org.jetbrains.annotations.NotNull;
024    import org.jetbrains.jet.codegen.state.GenerationState;
025    import org.jetbrains.jet.lang.psi.JetFile;
026    import org.jetbrains.org.objectweb.asm.Type;
027    
028    import java.util.Map;
029    
030    public class SamWrapperClasses {
031        private final GenerationState state;
032    
033        private final Map<Pair<SamType, JetFile>, Type> samInterfaceToWrapperClass = Maps.newHashMap();
034    
035        public SamWrapperClasses(@NotNull GenerationState state) {
036            this.state = state;
037        }
038    
039        @NotNull
040        public Type getSamWrapperClass(@NotNull final SamType samType, @NotNull final JetFile file, @NotNull final MemberCodegen<?> parentCodegen) {
041            return ContainerUtil.getOrCreate(samInterfaceToWrapperClass, Pair.create(samType, file),
042                                             new Factory<Type>() {
043                                                 @Override
044                                                 public Type create() {
045                                                     return new SamWrapperCodegen(state, samType, parentCodegen).genWrapper(file);
046                                                 }
047                                             });
048        }
049    }