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A packaging of the IntelliJ Community Edition xml-psi-impl library. This is release number 1 of trunk branch 142.

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/*
 * Copyright 2000-2014 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.
 */

/*
 * Created by IntelliJ IDEA.
 * User: mike
 * Date: Jul 31, 2002
 * Time: 9:03:01 PM
 * To change template for new class use 
 * Code Style | Class Templates options (Tools | IDE Options).
 */
package com.intellij.psi.impl.source.xml;

import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiElementVisitor;
import com.intellij.psi.PsiReference;
import com.intellij.psi.XmlElementVisitor;
import com.intellij.psi.impl.source.resolve.reference.ReferenceProvidersRegistry;
import com.intellij.psi.xml.*;
import org.jetbrains.annotations.NotNull;

public class XmlProcessingInstructionImpl extends XmlElementImpl implements XmlProcessingInstruction {
  public XmlProcessingInstructionImpl() {
    super(XmlElementType.XML_PROCESSING_INSTRUCTION);
  }

  @Override
  public void accept(@NotNull PsiElementVisitor visitor) {
    if (visitor instanceof XmlElementVisitor) {
      ((XmlElementVisitor)visitor).visitXmlProcessingInstruction(this);
    }
    else {
      visitor.visitElement(this);
    }
  }

  @Override
  public XmlTag getParentTag() {
    final PsiElement parent = getParent();
    if(parent instanceof XmlTag) return (XmlTag)parent;
    return null;
  }

  @Override
  public XmlTagChild getNextSiblingInTag() {
    PsiElement nextSibling = getNextSibling();
    if(nextSibling instanceof XmlTagChild) return (XmlTagChild)nextSibling;
    return null;
  }

  @Override
  public XmlTagChild getPrevSiblingInTag() {
    final PsiElement prevSibling = getPrevSibling();
    if(prevSibling instanceof XmlTagChild) return (XmlTagChild)prevSibling;
    return null;
  }

  @NotNull
  @Override
  public PsiReference[] getReferences() {
    return ReferenceProvidersRegistry.getReferencesFromProviders(this, XmlProcessingInstruction.class);
  }
}