public class SL_BlockNode extends ParseNode {
  // n children, corresponding to the statements in the block 

  public int getType() { return G_BLOCK; }
  public ParseNode interpret(SymbolTable st) 
    throws InterpretException, ReturnException, BreakException {
      for (int c=0; c<numChildren(); c++) 
	getChild(c).interpret(st);
      return null; 
  }
}