예제 #1
0
  public void handleFunction(ASTFunction node) {
    // Get the function's symbol table, set it's previous to the
    // calling function's, and then set it to current.
    connector.startSnap(node.getLineNumber());
    if (node.getName().equals("main")) {
      connector.addQuestion(startQuestion);
      connector.showScope("main");

    } else {
    }
    connector.endSnap();
    if (!node.getUsed()) {
      return;
    }
    SymbolTable currentSymbolTable = node.getSymbolTable();
    for (String p : node.getParameters()) {
      ByNameVariable v = new ByNameVariable();
      v.setParam();
      currentSymbolTable.put(p, v);
    }
    Global.setCurrentSymbolTable(currentSymbolTable);

    node.jjtGetChild(0).jjtAccept(this, null);
    leaveScope();
  }
예제 #2
0
  // returning false means we're done executing now.
  public Boolean handleDeclaration(ASTDeclaration node) {

    // System.out.println("Visiting decl");
    SimpleNode child = (SimpleNode) node.jjtGetChild(0);
    if (child.getId() == JJTFUNCTION) {
      System.out.println("Found a function");

      startQuestion = questionFactory.getStartQuestion();
      connector.endPar(); // ENDPAR
      connector.endSnap();
      ASTFunction main = Global.getFunction("main");
      connector.addScope(main.getSymbolTable(), "main", "Global");

      main.jjtAccept(this, null);

      return false;
    } else {
      node.jjtGetChild(0).jjtAccept(this, null);
      // update();
      return true;
    }
  }
예제 #3
0
  public Integer handleCall(ASTCall node) {
    boolean gotAQuestion = true; // FIXME HACK
    // Get the correct function head node
    ASTFunction fun = Global.getFunction(node.getName());
    System.out.println("Calling: " + fun.getName());
    // Get the parameters and put the correct values in the symbolTable
    SymbolTable st = fun.getSymbolTable();
    String name = fun.getName();
    ArrayList<String> parameters = fun.getParameters();
    JustCalling = true;
    ArrayList<Integer> args = (ArrayList<Integer>) node.jjtGetChild(0).jjtAccept(this, null);
    JustCalling = false;
    ArrayList<ASTVar> argNames = ((ASTArgs) node.jjtGetChild(0)).getArgs();
    for (int i = 0; i < args.size(); i++) {
      ByNameVariable v = (ByNameVariable) st.getVariable(parameters.get(i));
      v.setRef(argNames.get(i));

      ByNameVariable argVar = (ByNameVariable) st.getVariable(argNames.get(i).getName() + "_");
    }
    HashMap<String, String> pa = new HashMap<String, String>(); // Maps args to params
    for (int i = 0; i < parameters.size(); i++) {
      pa.put(parameters.get(i), argNames.get(i).getName());
    }
    Global.setCurrentParamToArg(pa);

    // QUESTION!!!
    callQuestion = questionFactory.getCallQuestion(name, pa);
    if (callQuestion == null) {
      System.out.println("No question");
      gotAQuestion = false;
    }
    // Drawing Stuff
    connector.addScope(new SymbolTable(null), fun.getName(), "Global", true);
    connector.startPar(); // STARTPAR
    connector.showScope(node.getName());
    if (gotAQuestion) {
      System.out.println("Adding the call question");
      connector.addQuestion(callQuestion);
    }
    connector.endPar(); // ENDPAR

    connector.endSnap();
    fun.jjtAccept(this, null); // and we gogogo

    if (gotAQuestion) {

      int answer = 0;
      try {
        answer = Global.getFunction("main").getSymbolTable().get(callQuestion.getVariable());
      } catch (Exception e) {
        System.out.println(e);
      }
      System.out.println(callQuestion.getVariable() + " is " + answer);

      if (callQuestion instanceof FIBQuestion) {
        ((FIBQuestion) callQuestion).addAnswer(answer + "");
      } else if (callQuestion instanceof TFQuestion) {
        int qa = answer;
        // Getting the value of the var at the end of the function
        String paramName = Global.getCurrentParamToArg().get(callQuestion.getVariable());
        int prevVal = 0;
        try {
          Global.getFunction("foo").getSymbolTable().get(paramName);
        } catch (Exception e) {
          System.out.println(e);
        }

        Random r = new Random();
        int choose = r.nextInt(3);
        switch (choose) {
          case 0:
            qa = callQuestion.getValue();
            System.out.println(qa + "getValue");
            ((TFQuestion) callQuestion).setAnswer(false);
            if (qa == answer) // Value is the same anyway
            {
              ((TFQuestion) callQuestion).setAnswer(true);
            }
            break;
          case 1:
          case 2:
            System.out.println(qa + "value");
            ((TFQuestion) callQuestion).setAnswer(true);
            break;
        }

        callQuestion.setText(callQuestion.getText() + qa);
      } else {
      }
    }
    connector.startSnap(Global.getFunction("main").getLineNumber());

    System.out.println("leaving call");
    return 0;
  }