Java Step类代码示例

import gov.nasa.jpf.vm.Step; //导入依赖的package包/类
private final void setComment(VM vm, ThreadInfo ti, String name, String operator, String value, boolean pending) {
  Step step;
  String comment;

  if (name == null)
    return;

  if (value == null)
    return;

  comment = name + operator + value;

  if (pending) {
    pendingComment.put(ti, comment);
  } else {
    step = vm.getLastStep();
    step.setComment(name + operator + value);
  }
}
 

import gov.nasa.jpf.vm.Step; //导入依赖的package包/类
/**
 * Return the string that will be used to label this state in the GDF graph.
 */
private String makeGdfLabel(Search state, int my_id) {
  Transition trans = state.getTransition();
  if (trans == null) {
	  return "-init-";
	}

	StringBuilder result = new StringBuilder();

	if (transition_numbers) {
	  result.append(my_id);
	  result.append(':');
	}

	Step last_trans_step = trans.getLastStep();
	result.append(last_trans_step.toString());

	if (show_source) {
	  String source_line=last_trans_step.getLineString();
	  if ((source_line != null) && !source_line.equals("")) {

	    // We need to deal with gdf-specific special characters which couls appear
	    // in the Java source line, such as '"'.
	    result.append(source_line);
	  	convertGdfSpecial(result);
	  }
  }
	return result.toString();
}
 

import gov.nasa.jpf.vm.Step; //导入依赖的package包/类
@Override
protected void publishTrace() {
  Path path = reporter.getPath();
  int i=0;

  if (path.size() == 0) {
    return; // nothing to publish
  }
  
  out.println("  <trace>");
  for (Transition t : path) {
    ChoiceGenerator<?> cg = t.getChoiceGenerator();
    out.println("    <transition id=\"" + i++ + "\" thread=\"" + t.getThreadIndex() + "\">");
    out.println("      <cg class=\""+cg.getClass().getName() + "\" choice=\"" +
                cg.getProcessedNumberOfChoices() + "\"/>");
    for (Step s : t) {
      out.print("      <insn src=\"" + s.getLocationString() + "\">");
      String insn = s.getInstruction().toString();
      if (insn.indexOf('<') >= 0) { // <init> and <clinit> clash with XML
        insn = insn.replaceAll("<", "&lt;");
        insn = insn.replaceAll(">", "&gt;");
      }
      out.print(insn);
      out.println("</insn>");
    }
    out.println("    </transition>");      
  }
  out.println("  </trace>");
}
 

import gov.nasa.jpf.vm.Step; //导入依赖的package包/类
/**
 * Return the string that will be used to label this state for the user.
 */
private String makeDotLabel(Search state, int my_id) {
  Transition trans = state.getTransition();
  if (trans == null) {
    return "-init-";
  }
  Step last_trans_step = trans.getLastStep();
  if (last_trans_step == null) {
    return "?";
  }

  StringBuilder result = new StringBuilder();

  if (transition_numbers) {
    result.append(my_id);
    result.append("\\n");
  }

  int thread = trans.getThreadIndex();

  result.append("Thd");
  result.append(thread);
  result.append(':');
  result.append(last_trans_step.toString());

  if (show_source) {
    String source_line=last_trans_step.getLineString();
    if ((source_line != null) && !source_line.equals("")) {
      result.append("\\n");

      StringBuilder sb=new StringBuilder(source_line);

      // We need to precede the dot-specific special characters which appear
      // in the Java source line, such as ']' and '"', with the '\' escape
      // characters and also to remove any new lines.

      replaceString(sb, "\n", "");
      replaceString(sb, "]", "\\]");
      replaceString(sb, "\"", "\\\"");
      result.append(sb.toString());
    }
  }

  return result.toString();
}
 

import gov.nasa.jpf.vm.Step; //导入依赖的package包/类
/**
 * this is done as part of the property violation reporting, i.e.
 * we have an error
 */
@Override
protected void publishTrace() {
  Path path = reporter.getPath();
  int i=0;

  if (path.size() == 0) {
    return; // nothing to publish
  }

  publishTopicStart("trace " + reporter.getCurrentErrorId());

  for (Transition t : path) {
    out.print("------------------------------------------------------ ");
    out.println("transition #" + i++ + " thread: " + t.getThreadIndex());

    if (showCG){
      out.println(t.getChoiceGenerator());
    }

    if (showSteps) {
      String lastLine = null;
      MethodInfo lastMi = null;
      int nNoSrc=0;

      for (Step s : t) {
        if (showSource) {
          String line = s.getLineString();
          if (line != null) {
            if (!line.equals(lastLine)) {
              if (nNoSrc > 0){
                out.println("      [" + nNoSrc + " insn w/o sources]");
              }

              out.print("  ");
              if (showLocation) {
                out.print(Left.format(s.getLocationString(),30));
                out.print(" : ");
              }
              out.println(line.trim());
              nNoSrc = 0;

            }
          } else { // no source
            nNoSrc++;
          }
          
          lastLine = line;
        }

        if (showCode) {
          Instruction insn = s.getInstruction();
          if (showMethod){
            MethodInfo mi = insn.getMethodInfo();
            if (mi != lastMi) {
              ClassInfo mci = mi.getClassInfo();
              out.print("    ");
              if (mci != null) {
                out.print(mci.getName());
                out.print(".");
              }
              out.println(mi.getUniqueName());
              lastMi = mi;
            }
          }
          out.print("      ");
          out.println(insn);
        }
      }

      if (showSource && !showCode && (nNoSrc > 0)) {
        out.println("      [" + nNoSrc + " insn w/o sources]");
      }
    }
  }
}