GotoInstruction.java

/*
 * Copyright 2000-2009 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.intellij.codeInspection.dataFlow.instructions;

import com.intellij.codeInspection.dataFlow.*;


public class GotoInstruction extends Instruction {
  private ControlFlow.ControlFlowOffset myOffset;

  public GotoInstruction(ControlFlow.ControlFlowOffset myOffset) {
    this.myOffset = myOffset;
  }

  public int getOffset() {
    return myOffset.getInstructionOffset();
  }

  @Override
  public DfaInstructionState[] accept(DataFlowRunner runner, DfaMemoryState stateBefore, InstructionVisitor visitor) {
    Instruction nextInstruction = runner.getInstruction(getOffset());
    return new DfaInstructionState[]{new DfaInstructionState(nextInstruction, stateBefore)};
  }

  public String toString() {
    return "GOTO: " + getOffset();
  }

  public void setOffset(final int offset) {
    myOffset = new ControlFlow.ControlFlowOffset() {
      @Override
      public int getInstructionOffset() {
        return offset;
      }
    };
  }

}