code: /*
   * Copyright (c) 2017-2018 The Regents of the University of California
   *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * 1. Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  package edu.berkeley.cs.jqf.instrument.tracing;
  
  import janala.logger.inst.*;
  
  /**
   * This is an instruction visitor that has additional convenience methods
   * for visiting control-flow instructions.
   *
   * <p>Additional control-flow groups include conditional jumps,
   * method exits (such as various returns or exceptional exit) and
   * method invocations.</p>
   */
  public class ControlFlowInstructionVisitor extends DefaultInstructionVisitor {
  
      public void visitInvokeInstruction(InvokeInstruction inst) {
          // Nothing by default
      }
  
      @Override
      public void visitINVOKEINTERFACE(INVOKEINTERFACE inst) {
          visitInvokeInstruction(inst);
          super.visitINVOKEINTERFACE(inst);
      }
  
      @Override
      public void visitINVOKESPECIAL(INVOKESPECIAL inst) {
          visitInvokeInstruction(inst);
          super.visitINVOKESPECIAL(inst);
      }
  
      @Override
      public void visitINVOKESTATIC(INVOKESTATIC inst) {
          visitInvokeInstruction(inst);
          super.visitINVOKESTATIC(inst);
      }
  
      @Override
      public void visitINVOKEVIRTUAL(INVOKEVIRTUAL inst) {
          visitInvokeInstruction(inst);
          super.visitINVOKEVIRTUAL(inst);
      }
  
      public void visitConditionalBranch(Instruction inst) {
          // Nothing by default
      }
  
      @Override
      public void visitIFEQ(IFEQ inst) {
          visitConditionalBranch(inst);
          super.visitIFEQ(inst);
      }
  
      @Override
      public void visitIFGE(IFGE inst) {
          visitConditionalBranch(inst);
          super.visitIFGE(inst);
      }
  
      @Override
      public void visitIFGT(IFGT inst) {
          visitConditionalBranch(inst);
          super.visitIFGT(inst);
      }
  
      @Override
      public void visitIFLE(IFLE inst) {
          visitConditionalBranch(inst);
          super.visitIFLE(inst);
      }
  
      @Override
      public void visitIFLT(IFLT inst) {
          visitConditionalBranch(inst);
          super.visitIFLT(inst);
      }
  
      @Override
      public void visitIFNE(IFNE inst) {
          visitConditionalBranch(inst);
          super.visitIFNE(inst);
      }
  
      @Override
      public void visitIFNONNULL(IFNONNULL inst) {
          visitConditionalBranch(inst);
          super.visitIFNONNULL(inst);
      }
  
      @Override
      public void visitIFNULL(IFNULL inst) {
          visitConditionalBranch(inst);
          super.visitIFNULL(inst);
      }
  
      @Override
      public void visitIF_ACMPEQ(IF_ACMPEQ inst) {
          visitConditionalBranch(inst);
          super.visitIF_ACMPEQ(inst);
      }
  
      @Override
      public void visitIF_ACMPNE(IF_ACMPNE inst) {
          visitConditionalBranch(inst);
          super.visitIF_ACMPNE(inst);
      }
  
      @Override
      public void visitIF_ICMPEQ(IF_ICMPEQ inst) {
          visitConditionalBranch(inst);
          super.visitIF_ICMPEQ(inst);
      }
  
      @Override
      public void visitIF_ICMPGE(IF_ICMPGE inst) {
          visitConditionalBranch(inst);
          super.visitIF_ICMPGE(inst);
      }
  
      @Override
      public void visitIF_ICMPGT(IF_ICMPGT inst) {
          visitConditionalBranch(inst);
          super.visitIF_ICMPGT(inst);
      }
  
      @Override
      public void visitIF_ICMPLE(IF_ICMPLE inst) {
          visitConditionalBranch(inst);
          super.visitIF_ICMPLE(inst);
      }
  
      @Override
      public void visitIF_ICMPLT(IF_ICMPLT inst) {
          visitConditionalBranch(inst);
          super.visitIF_ICMPLT(inst);
      }
  
      @Override
      public void visitIF_ICMPNE(IF_ICMPNE inst) {
          visitConditionalBranch(inst);
          super.visitIF_ICMPNE(inst);
      }
  
      public void visitReturnOrMethodThrow(Instruction inst) {
          // Nothing by default
      }
  
  
      @Override
      public void visitARETURN(ARETURN inst) {
          visitReturnOrMethodThrow(inst);
          super.visitARETURN(inst);
      }
  
      @Override
      public void visitDRETURN(DRETURN inst) {
          visitReturnOrMethodThrow(inst);
          super.visitDRETURN(inst);
      }
  
      @Override
      public void visitFRETURN(FRETURN inst) {
          visitReturnOrMethodThrow(inst);
          super.visitFRETURN(inst);
      }
  
      @Override
      public void visitIRETURN(IRETURN inst) {
          visitReturnOrMethodThrow(inst);
          super.visitIRETURN(inst);
      }
  
      @Override
      public void visitLRETURN(LRETURN inst) {
          visitReturnOrMethodThrow(inst);
          super.visitLRETURN(inst);
      }
  
      @Override
      public void visitRETURN(RETURN inst) {
          visitReturnOrMethodThrow(inst);
          super.visitRETURN(inst);
      }
  
      @Override
      public void visitMETHOD_THROW(METHOD_THROW inst) {
          visitReturnOrMethodThrow(inst);
          super.visitMETHOD_THROW(inst);
      }
  }
  