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.resolve.java;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.annotations.Nullable;
021    import org.jetbrains.asm4.Type;
022    import org.jetbrains.asm4.commons.Method;
023    import org.jetbrains.jet.lang.resolve.name.FqName;
024    import org.jetbrains.jet.lang.resolve.name.Name;
025    
026    public final class JvmAbi {
027        /**
028         * This constant is used to identify binary format (class file) versions
029         * If you change class file metadata format and/or naming conventions, please increase this number
030         */
031        public static final int VERSION = 11;
032    
033        public static final String TRAIT_IMPL_CLASS_NAME = "$TImpl";
034        public static final String TRAIT_IMPL_SUFFIX = "$" + TRAIT_IMPL_CLASS_NAME;
035    
036        public static final String DEFAULT_PARAMS_IMPL_SUFFIX = "$default";
037        public static final String GETTER_PREFIX = "get";
038        public static final String SETTER_PREFIX = "set";
039    
040        public static final String CLASS_OBJECT_CLASS_NAME = "object";
041        public static final String CLASS_OBJECT_SUFFIX = "$" + CLASS_OBJECT_CLASS_NAME;
042    
043        public static final String DELEGATED_PROPERTY_NAME_SUFFIX = "$delegate";
044        public static final String ANNOTATED_PROPERTY_METHOD_NAME_SUFFIX = "$annotations";
045    
046        public static final String INSTANCE_FIELD = "instance$";
047        public static final String CLASS_OBJECT_FIELD = "object$";
048    
049        public static final JvmClassName JET_OBJECT = JvmClassName.byFqNameWithoutInnerClasses("jet.JetObject");
050    
051        public static boolean isClassObjectFqName(@NotNull FqName fqName) {
052            return fqName.lastSegmentIs(Name.identifier(CLASS_OBJECT_CLASS_NAME));
053        }
054    
055        @NotNull
056        public static String getPropertyDelegateName(@NotNull Name name) {
057            return name.asString() + DELEGATED_PROPERTY_NAME_SUFFIX;
058        }
059    
060        @NotNull
061        public static Method getSyntheticMethodSignatureForAnnotatedProperty(@NotNull Name propertyName, @Nullable Type receiver) {
062            return new Method(
063                    propertyName.asString() + ANNOTATED_PROPERTY_METHOD_NAME_SUFFIX,
064                    Type.VOID_TYPE,
065                    receiver == null ? new Type[0] : new Type[] {receiver}
066            );
067        }
068    
069        @NotNull
070        public static String getDefaultPropertyName(@NotNull Name propertyName, boolean isDelegated, boolean isExtensionProperty) {
071            if (isDelegated) {
072                return getPropertyDelegateName(propertyName);
073            }
074    
075            String name = propertyName.asString();
076            if (isExtensionProperty) {
077                name += "$ext";
078            }
079            return name;
080    
081        }
082    
083        private JvmAbi() {
084        }
085    }