ExtractIncrementPredicate.java

/*
 * Copyright 2003-2007 Dave Griffith, Bas Leijdekkers
 *
 * 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.siyeh.ipp.increment;

import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiExpressionStatement;
import com.intellij.psi.PsiStatement;
import com.intellij.psi.util.PsiTreeUtil;
import com.siyeh.ipp.base.PsiElementPredicate;

class ExtractIncrementPredicate implements PsiElementPredicate {

  public boolean satisfiedBy(PsiElement element) {
    if (IncrementUtil.getIncrementOrDecrementOperand(element) == null) {
      return false;
    }
    final PsiElement parent = element.getParent();
    if (parent instanceof PsiExpressionStatement) {
      return false;
    }
    final PsiStatement containingStatement =
      PsiTreeUtil.getParentOfType(element, PsiStatement.class);
    return containingStatement != null;
  }
}