plugins/IntentionPowerPak/src/com/siyeh/ipp/trivialif/MergeElseIfIntention.java

/*
 * Copyright 2003-2006 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.trivialif;

import com.intellij.psi.*;
import com.intellij.util.IncorrectOperationException;
import com.siyeh.ig.PsiReplacementUtil;
import com.siyeh.ipp.base.Intention;
import com.siyeh.ipp.base.PsiElementPredicate;
import org.jetbrains.annotations.NotNull;

public class MergeElseIfIntention extends Intention {

  @NotNull
  public PsiElementPredicate getElementPredicate() {
    return new MergeElseIfPredicate();
  }

  public void processIntention(PsiElement element)
    throws IncorrectOperationException {
    final PsiJavaToken token = (PsiJavaToken)element;
    final PsiIfStatement parentStatement =
      (PsiIfStatement)token.getParent();
    assert parentStatement != null;
    final PsiBlockStatement elseBranch =
      (PsiBlockStatement)parentStatement.getElseBranch();
    assert elseBranch != null;
    final PsiCodeBlock elseBranchBlock = elseBranch.getCodeBlock();
    final PsiStatement elseBranchContents =
      elseBranchBlock.getStatements()[0];
    PsiReplacementUtil.replaceStatement(elseBranch, elseBranchContents.getText());
  }
}