Add AST Entry for state aggregation

opengeode/icons.py

@@ -2,7 +2,7 @@
 # Resource object code
 #
-# Created: Sun Oct 11 20:30:29 2015
+# Created: Mon Oct 12 21:34:01 2015
 #      by: The Resource Compiler for PySide (Qt v4.8.6)
 #
 # WARNING! All changes made in this file will be lost!

opengeode/ogAST.py

@@ -716,7 +716,7 @@ class TextArea(object):
 
 
 class Automaton(object):
-    ''' Elements contained in a process or a procedure '''
+    ''' Elements contained in a process, procedure or composite state'''
     def __init__(self, parent=None):
         ''' AST grouping the elements that can be rendered graphically '''
         self.parent = parent
@@ -879,6 +879,21 @@ class CompositeState(Process):
                 l=self.line, c=self.charPositionInLine)
 
 
+class StateAggregation(CompositeState):
+    '''
+        State Aggregation (Parallel states) are supported since SDL2000
+        These states can only contain (in the self.content field):
+            text areas
+            procedure definitions
+            composite states (including sub-state aggregations)
+        But no state machine definition
+    '''
+    def trace(self):
+        ''' Debug output for state aggregation '''
+        return u'STATE AGGREGATION {exp} ({l},{c})'.format(exp=self.statename,
+                l=self.line, c=self.charPositionInLine)
+
+
 class Block(object):
     ''' AST for a BLOCK entity '''
     def __init__(self):