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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 com.intellij.psi.tree.TokenSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.JetNodeTypes;
import org.jetbrains.jet.lang.psi.stubs.PsiJetPlaceHolderStub;
import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
import org.jetbrains.jet.lexer.JetTokens;

import java.util.Arrays;
import java.util.List;

import static org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes.*;

public class JetClassBody extends JetElementImplStub> implements JetDeclarationContainer {

    public JetClassBody(@NotNull ASTNode node) {
        super(node);
    }

    public JetClassBody(@NotNull PsiJetPlaceHolderStub stub) {
        super(stub, CLASS_BODY);
    }

    @Override
    @NotNull
    public List getDeclarations() {
        return Arrays.asList(getStubOrPsiChildren(DECLARATION_TYPES, JetDeclaration.ARRAY_FACTORY));
    }

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

    @NotNull
    public List getAnonymousInitializers() {
        return findChildrenByType(JetNodeTypes.ANONYMOUS_INITIALIZER);
    }

    @NotNull
    public List getProperties() {
        return getStubOrPsiChildrenAsList(JetStubElementTypes.PROPERTY);
    }

    @Nullable
    public JetClassObject getClassObject() {
        return getStubOrPsiChild(CLASS_OBJECT);
    }

    @NotNull
    public List getAllClassObjects() {
        return getStubOrPsiChildrenAsList(JetStubElementTypes.CLASS_OBJECT);
    }

    @Nullable
    public PsiElement getRBrace() {
        ASTNode[] children = getNode().getChildren(TokenSet.create(JetTokens.RBRACE));
        return children.length == 1 ? children[0].getPsi() : null;
    }

    @Nullable
    public PsiElement getLBrace() {
        ASTNode[] children = getNode().getChildren(TokenSet.create(JetTokens.LBRACE));
        return children.length == 1 ? children[0].getPsi() : null;
    }
}