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 org.jetbrains.annotations.NotNull;
020    import org.jetbrains.annotations.Nullable;
021    import org.jetbrains.asm4.AnnotationVisitor;
022    import org.jetbrains.asm4.Type;
023    import org.jetbrains.jet.codegen.context.ClassContext;
024    import org.jetbrains.jet.codegen.state.GenerationState;
025    import org.jetbrains.jet.lang.psi.JetClassOrObject;
026    import org.jetbrains.jet.lang.resolve.java.JvmAbi;
027    import org.jetbrains.jet.lang.resolve.java.JvmAnnotationNames;
028    
029    import static org.jetbrains.asm4.Opcodes.*;
030    import static org.jetbrains.jet.codegen.AsmUtil.asmTypeByFqNameWithoutInnerClasses;
031    import static org.jetbrains.jet.lang.resolve.java.JvmAnnotationNames.KOTLIN_SYNTHETIC_CLASS;
032    
033    public class TraitImplBodyCodegen extends ClassBodyCodegen {
034    
035        public TraitImplBodyCodegen(
036                @NotNull JetClassOrObject aClass,
037                @NotNull ClassContext context,
038                @NotNull ClassBuilder v,
039                @NotNull GenerationState state,
040                @Nullable MemberCodegen parentCodegen
041        ) {
042            super(aClass, context, v, state, parentCodegen);
043        }
044    
045        @Override
046        protected void generateDeclaration() {
047            v.defineClass(myClass, V1_6,
048                          ACC_PUBLIC | ACC_FINAL,
049                          typeMapper.mapTraitImpl(descriptor).getInternalName(),
050                          null,
051                          "java/lang/Object",
052                          new String[0]
053            );
054            v.visitSource(myClass.getContainingFile().getName(), null);
055        }
056    
057        @Override
058        protected void generateKotlinAnnotation() {
059            Type type = asmTypeByFqNameWithoutInnerClasses(KOTLIN_SYNTHETIC_CLASS);
060            AnnotationVisitor av = v.getVisitor().visitAnnotation(type.getDescriptor(), true);
061            if (av == null) return;
062            av.visit(JvmAnnotationNames.ABI_VERSION_FIELD_NAME, JvmAbi.VERSION);
063            av.visitEnum("kind", "L" + type.getInternalName() + "$Kind;", "TRAIT_IMPL");
064            av.visitEnd();
065        }
066    }