Fix minor bugs

opengeode/genericSymbols.py

@@ -344,7 +344,7 @@ class Symbol(QObject, QGraphicsPathItem):
             LOG.debug(str(traceback.format_exc()))
             LOG.error('Checker failed - no parser for this construct?')
         else:
-            if check_last_semi:
+            if check_last_semi and str(self).strip():
                 if str(self).strip()[-1] == ';':
                     syntax_errors.append("Remove the semi-colon at the end"
                             " of the text.")

opengeode/ogParser.py

@@ -930,8 +930,8 @@ def check_type_compatibility(primary, type_ref, context):
         Possibly returns a list of warnings; can raises TypeError
     '''
     warnings = []    # function returns a list of warnings
-    assert type_ref is not None
-    if type_ref is UNKNOWN_TYPE:
+    # assert type_ref is not None
+    if type_ref is UNKNOWN_TYPE or type_ref is None:
         #print traceback.print_stack()
         raise TypeError('Type reference is unknown')
 
@@ -2205,6 +2205,8 @@ def primary_call(root, context):
         errors.append(error(root, str(err)))
     except OverflowError:
         errors.append(error(root, 'Result can exceeds 64-bits'))
+    except Warning as warn:
+        warnings.append(warning(root, str(warn)))
 
     return node, errors, warnings