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.structure.impl;
018    
019    import com.intellij.psi.PsiElement;
020    import com.intellij.psi.PsiEnumConstant;
021    import com.intellij.psi.PsiField;
022    import com.intellij.psi.PsiReferenceExpression;
023    import org.jetbrains.annotations.NotNull;
024    import org.jetbrains.annotations.Nullable;
025    import org.jetbrains.jet.lang.resolve.java.structure.JavaElement;
026    import org.jetbrains.jet.lang.resolve.java.structure.JavaReferenceAnnotationArgument;
027    import org.jetbrains.jet.lang.resolve.name.Name;
028    
029    public class JavaReferenceAnnotationArgumentImpl extends JavaAnnotationArgumentImpl<PsiReferenceExpression>
030            implements JavaReferenceAnnotationArgument {
031        protected JavaReferenceAnnotationArgumentImpl(@NotNull PsiReferenceExpression psiReferenceExpression, @Nullable Name name) {
032            super(psiReferenceExpression, name);
033        }
034    
035        @Override
036        @Nullable
037        public JavaElement resolve() {
038            PsiReferenceExpression expression = getPsi();
039            PsiElement element = expression.resolve();
040            if (element instanceof PsiEnumConstant) {
041                return new JavaFieldImpl((PsiField) element);
042            }
043            // TODO: other types of references
044            return null;
045        }
046    }