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.signature.kotlin;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.asm4.AnnotationVisitor;
021    import org.jetbrains.asm4.MethodVisitor;
022    import org.jetbrains.jet.lang.resolve.java.JvmStdlibNames;
023    
024    public class JetMethodAnnotationWriter {
025        private final AnnotationVisitor av;
026    
027        private JetMethodAnnotationWriter(AnnotationVisitor av) {
028            this.av = av;
029        }
030    
031        public void writeFlags(int flags) {
032            if (flags != JvmStdlibNames.FLAGS_DEFAULT_VALUE) {
033                av.visit(JvmStdlibNames.JET_FLAGS_FIELD, flags);
034            }
035        }
036    
037        public void writeTypeParameters(@NotNull String typeParameters) {
038            if (typeParameters.length() > 0) {
039                av.visit(JvmStdlibNames.JET_METHOD_TYPE_PARAMETERS_FIELD, typeParameters);
040            }
041        }
042    
043        public void writeReturnType(@NotNull String returnType) {
044            if (returnType.length() > 0) {
045                av.visit(JvmStdlibNames.JET_METHOD_RETURN_TYPE_FIELD, returnType);
046            }
047        }
048    
049        public void writePropertyType(@NotNull String propertyType) {
050            if (propertyType.length() > 0) {
051                av.visit(JvmStdlibNames.JET_METHOD_PROPERTY_TYPE_FIELD, propertyType);
052            }
053        }
054    
055        public void visitEnd() {
056            av.visitEnd();
057        }
058    
059        public static JetMethodAnnotationWriter visitAnnotation(MethodVisitor mv) {
060            return new JetMethodAnnotationWriter(mv.visitAnnotation(JvmStdlibNames.JET_METHOD.getDescriptor(), true));
061        }
062    }