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A packaging of the IntelliJ Community Edition python-community 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.
 */
package com.jetbrains.python.validation;

import com.jetbrains.python.psi.PyElementVisitor;
import com.intellij.lang.annotation.AnnotationHolder;
import com.intellij.psi.PsiElement;

/**
 * @author yole
 */
public abstract class PyAnnotator extends PyElementVisitor {
  private AnnotationHolder _holder;

  public AnnotationHolder getHolder() {
    return _holder;
  }

  public void setHolder(AnnotationHolder holder) {
    _holder = holder;
  }

  public synchronized void annotateElement(final PsiElement psiElement, final AnnotationHolder holder) {
    setHolder(holder);
    try {
      psiElement.accept(this);
    }
    finally {
      setHolder(null);
    }
  }

  protected void markError(PsiElement element, String message) {
    getHolder().createErrorAnnotation(element, message);
  }
}