java/java-impl/src/com/intellij/psi/controlFlow/ConditionalBranchingInstruction.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.psi.controlFlow;
  17
  18 import com.intellij.openapi.diagnostic.Logger;
  19 import com.intellij.psi.PsiExpression;
  20
  21 /**
  22  * Author: msk
  23  */
  24 public abstract class ConditionalBranchingInstruction extends BranchingInstruction {
  25   protected static final Logger LOG = Logger.getInstance("#com.intellij.psi.controlFlow.ConditionalGoToInstruction");
  26   public final PsiExpression expression;
  27
  28   public ConditionalBranchingInstruction(int offset, final PsiExpression expression, Role role) {
  29     super(offset, role);
  30     this.expression = expression;
  31   }
  32
  33   public int nNext() { return 2; }
  34
  35   public int getNext(int index, int no) {
  36     switch (no) {
  37       case 0: return offset;
  38       case 1: return index + 1;
  39       default:
  40         LOG.assertTrue (false);
  41         return -1;
  42     }
  43   }
  44
  45   public void accept(ControlFlowInstructionVisitor visitor, int offset, int nextOffset) {
  46     visitor.visitConditionalBranchingInstruction(this, offset, nextOffset);
  47   }
  48 }