Imported core, m, ag and serial for refactoring

ag/ag.header.pyx

@@ -0,0 +1,49 @@
+"""
+Overwatch Aggregate Object type
+
+TODO Method overrides: _common gets renamed to _call_all and we add _call_last.
+"""
+
+class ModuleCollision(Exception):
+	def __init__(self, colliding_module_name, resident_module_names, item_type, items):
+		self.colliding_module_name = colliding_module_name
+		self.resident_module_names = resident_module_names
+		self.item_type = item_type
+		self.items = items
+	
+	def __str__(self):
+		if self.item_type == "name":
+			return "Unable to link module '%s': name already present in Aggregate." %(self.colliding_module_name)
+		else:
+			return "Unable to link module '%s': %s(s) '%s' already provided by module(s) '%s'." %(self.colliding_module_name,
+				self.item_type, "', '".join(self.items), "', '".join(self.resident_module_names))
+
+class ModuleDependencyError(Exception):
+	def __init__(self, module_name, dependencies, unlink=False):
+		self.module_name = module_name
+		self.dependencies = dependencies
+		self.unlink = unlink
+	
+	def __str__(self):
+		if self.unlink:
+			return "Unable to unlink module '%s': Aggregate depends on its export(s) '%s'." %(self.module_name,
+			"', '".join(self.dependencies))
+		else:
+			return "Unable to link module '%s': requirement '%s' unsatisfied by Aggregate." %(self.module_name,
+			"', '".join(self.dependencies))
+
+class CommonMethodMissing(Exception):
+	def __init__(self, method_name, module_name):
+		self.method_name = method_name
+		self.module_name = module_name
+	
+	def __str__(self):
+		return "Unable to link module '%s': method '%s' (declared as common) does not exist in module." %(
+			self.module_name, self.method_name)
+
+class ModuleDoesntExist(Exception):
+	def __init__(self, module_name):
+		self.module_name = module_name
+	
+	def __str__(self):
+		return "Unable to unlink module '%s': not linked to Aggregate." %(self.module_name)