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.kt;
018    
019    import com.intellij.psi.PsiAnnotation;
020    import com.intellij.psi.PsiParameter;
021    import org.jetbrains.annotations.NotNull;
022    import org.jetbrains.annotations.Nullable;
023    import org.jetbrains.jet.lang.resolve.java.JvmStdlibNames;
024    import org.jetbrains.jet.lang.resolve.java.resolver.JavaAnnotationResolver;
025    
026    public class JetValueParameterAnnotation extends PsiAnnotationWrapper {
027        private static final JetValueParameterAnnotation NULL_ANNOTATION = new JetValueParameterAnnotation(null);
028        static {
029            NULL_ANNOTATION.checkInitialized();
030        }
031    
032        private String name;
033        private String type;
034        private boolean receiver;
035        private boolean hasDefaultValue;
036        private boolean vararg;
037    
038        private JetValueParameterAnnotation(@Nullable PsiAnnotation psiAnnotation) {
039            super(psiAnnotation);
040        }
041    
042        @Override
043        protected void initialize() {
044            name = getStringAttribute(JvmStdlibNames.JET_VALUE_PARAMETER_NAME_FIELD, "");
045            type = getStringAttribute(JvmStdlibNames.JET_VALUE_PARAMETER_TYPE_FIELD, "");
046            receiver = getBooleanAttribute(JvmStdlibNames.JET_VALUE_PARAMETER_RECEIVER_FIELD, false);
047            hasDefaultValue = getBooleanAttribute(JvmStdlibNames.JET_VALUE_PARAMETER_HAS_DEFAULT_VALUE_FIELD, false);
048            vararg = getBooleanAttribute(JvmStdlibNames.JET_VALUE_PARAMETER_VARARG, false);
049        }
050    
051        @NotNull
052        public String name() {
053            checkInitialized();
054            return name;
055        }
056    
057        @NotNull
058        public String type() {
059            checkInitialized();
060            return type;
061        }
062    
063        public boolean receiver() {
064            checkInitialized();
065            return receiver;
066        }
067        
068        public boolean hasDefaultValue() {
069            checkInitialized();
070            return hasDefaultValue;
071        }
072    
073        public boolean vararg() {
074            checkInitialized();
075            return vararg;
076        }
077    
078        public static JetValueParameterAnnotation get(PsiParameter psiParameter) {
079            PsiAnnotation annotation =
080                    JavaAnnotationResolver.findOwnAnnotation(psiParameter, JvmStdlibNames.JET_VALUE_PARAMETER.getFqName().asString());
081            return annotation != null ? new JetValueParameterAnnotation(annotation) : NULL_ANNOTATION;
082        }
083    }