java/java-impl/src/com/intellij/codeInsight/unwrap/JavaBracesUnwrapper.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.codeInsight.unwrap;
  17
  18 import com.intellij.codeInsight.CodeInsightBundle;
  19 import com.intellij.psi.*;
  20 import com.intellij.util.IncorrectOperationException;
  21
  22 public class JavaBracesUnwrapper extends JavaUnwrapper {
  23   public JavaBracesUnwrapper() {
  24     super(CodeInsightBundle.message("unwrap.braces"));
  25   }
  26
  27   public boolean isApplicableTo(PsiElement e) {
  28     return e instanceof PsiBlockStatement && !belongsToControlStructures(e);
  29   }
  30
  31   private boolean belongsToControlStructures(PsiElement e) {
  32     PsiElement p = e.getParent();
  33
  34     return p instanceof PsiIfStatement
  35            || p instanceof PsiLoopStatement
  36            || p instanceof PsiTryStatement
  37            || p instanceof PsiCatchSection;
  38   }
  39
  40   @Override
  41   protected void doUnwrap(PsiElement element, Context context) throws IncorrectOperationException {
  42     context.extractFromBlockOrSingleStatement((PsiStatement)element, element);
  43     context.delete(element);
  44   }
  45 }