示例#1
0
 /**
  * makes a best effort to get a precise position for this element
  *
  * @param e
  * @return
  */
 public static WPos getPos(AstElement e) {
   if (e instanceof AstElementWithSource) {
     AstElementWithSource ws = (AstElementWithSource) e;
     return ws.getSource();
   }
   if (e.size() > 0) { // try to find the position by examining the childs
     int min = Integer.MAX_VALUE;
     int max = Integer.MIN_VALUE;
     for (int i = 0; i < e.size(); i++) {
       AstElement child = e.get(i);
       WPos childSource = child.attrSource();
       min = Math.min(min, childSource.getLeftPos());
       max = Math.max(max, childSource.getRightPos());
     }
     return new WPos(
         e.get(0).attrSource().getFile(), e.get(0).attrSource().getLineOffsets(), min, max);
   }
   // if no childs exist, search a parent element with a explicit position
   AstElement parent = e.getParent();
   while (parent != null) {
     if (parent instanceof AstElementWithSource) {
       WPos parentSource = ((AstElementWithSource) parent).getSource();
       // use parent position but with size -1, so we do not go into this
       return new WPos(
           parentSource.getFile(),
           parentSource.getLineOffsets(),
           parentSource.getLeftPos(),
           parentSource.getLeftPos() - 1);
     }
     parent = parent.getParent();
   }
   return new WPos("<source of " + e + " not found>", new LineOffsets(), 0, 0);
 }
示例#2
0
 private static void addErrorOrWarning(AstElement e, String msg, ErrorType errorType)
     throws CompileError {
   ErrorHandler handler = e.getErrorHandler();
   CompileError c = makeCompileError(e, msg, handler, errorType);
   if (c != null) {
     handler.sendError(c);
   }
 }
示例#3
0
 private static CompileError makeCompileError(
     AstElement e, String msg, ErrorHandler handler, CompileError.ErrorType errorType)
     throws CompileError {
   WPos pos = e.attrErrorPos();
   if (handler.isUnitTestMode()) {
     throw new CompileError(pos, msg);
   }
   ListIterator<CompileError> it = handler.getErrors().listIterator();
   while (it.hasNext()) {
     CompileError err = it.next();
     if (err.getSource().getFile().equals(pos.getFile())) {
       if (bigger(err.getSource(), pos)) {
         // remove bigger errors
         it.remove();
       } else if (bigger(pos, err.getSource()) || equal(pos, err.getSource())) {
         // do not add smaller or equal errors
         return null;
       }
     }
   }
   return new CompileError(pos, msg, errorType);
 }
示例#4
0
 public static WPos getErrorPos(AstElement e) {
   return e.attrSource();
 }
示例#5
0
 public static ErrorHandler getErrorHandler(AstElement e) {
   if (e.getParent() == null) {
     throw new Error("Trying to get error handler of element not attached to root:\n" + e);
   }
   return e.getParent().getErrorHandler();
 }