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.psi;
018    
019    import com.intellij.lang.ASTNode;
020    import com.intellij.psi.tree.TokenSet;
021    import org.jetbrains.annotations.NotNull;
022    import org.jetbrains.annotations.Nullable;
023    import org.jetbrains.jet.JetNodeTypes;
024    import org.jetbrains.jet.lang.psi.typeRefHelpers.TypeRefHelpersPackage;
025    import org.jetbrains.jet.lang.resolve.name.FqName;
026    import org.jetbrains.jet.lexer.JetTokens;
027    
028    import java.util.Collections;
029    import java.util.List;
030    
031    import static org.jetbrains.jet.lexer.JetTokens.VAL_KEYWORD;
032    import static org.jetbrains.jet.lexer.JetTokens.VAR_KEYWORD;
033    
034    public class JetMultiDeclarationEntry extends JetNamedDeclarationNotStubbed implements JetVariableDeclaration {
035        public JetMultiDeclarationEntry(@NotNull ASTNode node) {
036            super(node);
037        }
038    
039        @Override
040        public JetTypeReference getTypeReference() {
041            return TypeRefHelpersPackage.getTypeReference(this);
042        }
043    
044        @Override
045        @Nullable
046        public JetTypeReference setTypeReference(@Nullable JetTypeReference typeRef) {
047            return TypeRefHelpersPackage.setTypeReference(this, getNameIdentifier(), typeRef);
048        }
049    
050        @Nullable
051        @Override
052        public JetParameterList getValueParameterList() {
053            return null;
054        }
055    
056        @Nullable
057        @Override
058        public JetTypeReference getReceiverTypeReference() {
059            return null;
060        }
061    
062        @NotNull
063        @Override
064        public List<JetTypeConstraint> getTypeConstraints() {
065            return Collections.emptyList();
066        }
067    
068        @NotNull
069        @Override
070        public List<JetTypeParameter> getTypeParameters() {
071            return Collections.emptyList();
072        }
073    
074        @Override
075        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
076            return visitor.visitMultiDeclarationEntry(this, data);
077        }
078    
079        @Override
080        public boolean isVar() {
081            return getParentNode().findChildByType(JetTokens.VAR_KEYWORD) != null;
082        }
083    
084        @Nullable
085        @Override
086        public JetExpression getInitializer() {
087            return null;
088        }
089    
090        @Override
091        public boolean hasInitializer() {
092            return false;
093        }
094    
095        @NotNull
096        private ASTNode getParentNode() {
097            ASTNode parent = getNode().getTreeParent();
098            assert parent.getElementType() == JetNodeTypes.MULTI_VARIABLE_DECLARATION;
099            return parent;
100        }
101    
102        @Override
103        public ASTNode getValOrVarNode() {
104            return getParentNode().findChildByType(TokenSet.create(VAL_KEYWORD, VAR_KEYWORD));
105        }
106    
107        @Nullable
108        @Override
109        public FqName getFqName() {
110            return null;
111        }
112    }