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/*
 * Copyright 2010-2013 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jetbrains.jet.lang.psi;

import com.intellij.lang.ASTNode;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.lang.psi.stubs.PsiJetPlaceHolderStub;
import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
import org.jetbrains.jet.lexer.JetTokens;

public class JetClassObject extends JetDeclarationStub> implements JetStatementExpression {
    public JetClassObject(@NotNull ASTNode node) {
        super(node);
    }

    public JetClassObject(@NotNull PsiJetPlaceHolderStub stub) {
        super(stub, JetStubElementTypes.CLASS_OBJECT);
    }

    @Override
    public  R accept(@NotNull JetVisitor visitor, D data) {
        return visitor.visitClassObject(this, data);
    }

    @NotNull
    public JetObjectDeclaration getObjectDeclaration() {
        return getRequiredStubOrPsiChild(JetStubElementTypes.OBJECT_DECLARATION);
    }

    @Nullable @IfNotParsed
    public PsiElement getClassKeywordNode() {
        ASTNode keywordNode = getNode().findChildByType(JetTokens.CLASS_KEYWORD);
        return keywordNode != null ? keywordNode.getPsi() : null;
    }
}