Add initial code to generate Python code from rules

kernel/rules/MvK_rules.mvc

@@ -970,7 +970,9 @@ Rule Call_Resolve_No_Params_N13 {
     Match N13_1 {
         match = True
     }
-    Match N13_2 {}
+    Match N13_2 {
+        match = True
+    }
     Match N13_3 {
         value = "'init'"
         match = True

kernel/rules/to_python.alc

@@ -0,0 +1,56 @@
+include "primitives.alh"
+include "modelling.alh"
+include "object_operations.alh"
+
+Boolean function main(model : Element):
+	String result
+	Element nodes
+	String node
+	Element edges
+	String edge
+	String new_node
+	String source
+	String destination
+	String name
+	Element to_explore
+	Element explored
+
+	result = "root, = yield [('RR', [])]\n"
+	nodes = allInstances(model, "Rules/Root")
+	while (set_len(nodes) > 0):
+		node = set_pop(nodes)
+		source = string_replace(node, "/", "_")
+		result = result + source + " = root\n"
+
+		// Keep following outgoing edges to find matching nodes
+		to_explore = set_create()
+		explored = set_create()
+		set_add(to_explore, node)
+
+		while (set_len(to_explore) > 0):
+			// Still explore more!
+			node = set_pop(to_explore)
+			source = string_replace(node, "/", "_")
+
+			edges = allOutgoingAssociationInstances(model, node, "Rules/Edge")
+			while (set_len(edges) > 0):
+				edge = set_pop(edges)
+				new_node = readAssociationDestination(model, edge)
+				if (value_eq(read_attribute(model, new_node, "match"), True)):
+					// Is a match node, so fetch the value on the edge
+					name = read_attribute(model, edge, "value")
+					destination = string_replace(new_node, "/", "_")
+					result = result + destination + ", = yield [('RD', [" + source + ", " + name + "])]\n"
+
+					String value
+					value = read_attribute(model, new_node, "value")
+					if (element_neq(value, read_root())):
+						// Match node has a value we should compare as well!
+						// Read out the value from the Modelverse
+						result = result + destination + "_V, = yield [('RV', [" + destination + "])]\n"
+
+					set_add(to_explore, new_node)
+
+	log("Got result:")
+	log(result)
+	return True!

wrappers/modelverse_SCCD.py

@@ -1,7 +1,7 @@
 """
 Generated by Statechart compiler by Glenn De Jonghe, Joeri Exelmans, Simon Van Mierlo, and Yentl Van Tendeloo (for the inspiration)
 
-Date:   Thu Nov 23 16:19:24 2017
+Date:   Fri Nov 24 11:09:50 2017
 
 Model author: Yentl Van Tendeloo
 Model name:   MvK Server