java/java-impl/src/com/intellij/codeInspection/dataFlow/instructions/EmptyInstruction.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
  17 /*
  18  * Created by IntelliJ IDEA.
  19  * User: max
  20  * Date: Jan 26, 2002
  21  * Time: 10:48:42 PM
  22  * To change template for new class use
  23  * Code Style | Class Templates options (Tools | IDE Options).
  24  */
  25 package com.intellij.codeInspection.dataFlow.instructions;
  26
  27 import com.intellij.codeInspection.dataFlow.*;
  28
  29
  30 public class EmptyInstruction extends Instruction {
  31
  32   @Override
  33   public DfaInstructionState[] accept(DataFlowRunner runner, DfaMemoryState stateBefore, InstructionVisitor visitor) {
  34     Instruction nextInstruction = runner.getInstruction(getIndex() + 1);
  35     return new DfaInstructionState[] {new DfaInstructionState(nextInstruction, stateBefore)};
  36   }
  37
  38   public String toString() {
  39     return "EMPTY";
  40   }
  41 }