ASTPrinting.jadd

/**
 * contains a method to display a debug text output of the AST
 */
aspect ASTPrinting {

  public String ASTNode.getASTString() {

    String result = this.getClass().getSimpleName() + "\n";

    for (java.lang.reflect.Method method : this.getClass().getMethods()) {
      ASTNodeAnnotation.Token annotation = method.getAnnotation(ASTNodeAnnotation.Token.class);
      if (annotation != null) {
        try {
          result += "|--" + annotation.name() + ": " + method.invoke(this);
        } catch (IllegalAccessException e) {
          e.printStackTrace();
        } catch (java.lang.reflect.InvocationTargetException e) {
          e.printStackTrace();
        }
        result += "\n";
      }
    }

    for(int childIndex = 0; childIndex < getNumChildNoTransform(); childIndex++) {

      ASTNode<?> child = getChildNoTransform(childIndex);
      String childString = "NULL\n";
      if(child != null) {
        childString = child.getASTString();
      }

      if(childIndex < getNumChildNoTransform() - 1) {
        childString = childString.replaceAll("(?m)^", "|  ");
      } else {
        childString = childString.replaceAll("(?m)^", "   ");
      }

      result += "|\n|--" + childString.substring(3);
    }

    return result;
  }
}