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.types.lang;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.annotations.Nullable;
021    import org.jetbrains.jet.lang.resolve.name.ClassId;
022    import org.jetbrains.jet.lang.resolve.name.FqName;
023    import org.jetbrains.jet.lang.resolve.name.FqNameUnsafe;
024    import org.jetbrains.jet.lang.resolve.name.Name;
025    
026    import java.util.ArrayList;
027    import java.util.List;
028    
029    import static org.jetbrains.jet.lang.resolve.name.SpecialNames.isClassObjectName;
030    
031    public class BuiltInsSerializationUtil {
032        private static final String CLASS_METADATA_FILE_EXTENSION = "kotlin_class";
033        private static final String PACKAGE_FILE_NAME = ".kotlin_package";
034        private static final String NAME_TABLE_FILE_NAME = ".kotlin_name_table";
035        private static final String CLASS_NAMES_FILE_NAME = ".kotlin_class_names";
036        private static final String CLASS_OBJECT_NAME = "object";
037    
038        private BuiltInsSerializationUtil() {
039        }
040    
041        @Nullable
042        private static String relativeClassNameToFilePath(@NotNull FqNameUnsafe className) {
043            List<Name> segments = className.pathSegments();
044            List<String> correctedSegments = new ArrayList<String>(segments.size());
045            for (Name segment : segments) {
046                if (isClassObjectName(segment)) {
047                    correctedSegments.add(CLASS_OBJECT_NAME);
048                }
049                else if (!segment.isSpecial()) {
050                    correctedSegments.add(segment.getIdentifier());
051                }
052                else return null;
053            }
054            return FqName.fromSegments(correctedSegments).asString();
055        }
056    
057        @Nullable
058        public static String getClassMetadataPath(@NotNull ClassId classId) {
059            String filePath = relativeClassNameToFilePath(classId.getRelativeClassName());
060            if (filePath == null) return null;
061            return packageFqNameToPath(classId.getPackageFqName()) + "/" + filePath + "." + CLASS_METADATA_FILE_EXTENSION;
062        }
063    
064        @NotNull
065        public static String getPackageFilePath(@NotNull FqName fqName) {
066            return packageFqNameToPath(fqName) + "/" + PACKAGE_FILE_NAME;
067        }
068    
069        @NotNull
070        public static String getNameTableFilePath(@NotNull FqName fqName) {
071            return packageFqNameToPath(fqName) + "/" + NAME_TABLE_FILE_NAME;
072        }
073    
074        @NotNull
075        public static String getClassNamesFilePath(@NotNull FqName fqName) {
076            return packageFqNameToPath(fqName) + "/" + CLASS_NAMES_FILE_NAME;
077        }
078    
079        private static String packageFqNameToPath(FqName fqName) {
080            return fqName.asString().replace('.', '/');
081        }
082    }