fix(schema): now deals with non-objects

These are arrays or HashMaps, which are nested types too. This is used
to have custom types of standard vectors or hashmaps, which resolve
to NewTypes in Rust.

src/mako/lib/schema.mako

@@ -7,7 +7,6 @@
 ###################################################################################################################
 <%def name="new(s, c)">\
 <% 
-	assert s.type == "object" 
 	markers = schema_markers(s, c)
 %>\
 <%block filter="rust_doc_comment">\
@@ -15,6 +14,7 @@ ${doc(s, c)}\
 </%block>
 #[derive(RustcEncodable, RustcDecodable, Default, Clone)]
 pub struct ${s.id}\
+% if s.type == 'object':
 % if 'properties' in s:
  {
 % for pn, p in s.properties.iteritems():
@@ -22,9 +22,12 @@ pub struct ${s.id}\
 	pub ${mangle_ident(pn)}: ${to_rust_type(s.id, pn, p)},
 % endfor
 }
-% else:
+% else: ## it's an empty struct, i.e. struct Foo;
 ;
-% endif
+% endif ## 'properties' in s
+% else:
+(${to_rust_type(s.id, s.id, s)});
+% endif ## type == 'object'
 
 % for marker_trait in markers:
 impl ${marker_trait} for ${s.id} {}
@@ -72,4 +75,9 @@ ${''.join("* [%s](struct.%s.html) (%s)\n" % (activity_split(a)[2], mb_type(*acti
 
 This type is not used in any activity, and only used as *part* of another schema.
 % endif
+% if s.type != 'object':
+
+## for some reason, it's not shown in rustdoc ... 
+The contained type is `${to_rust_type(s.id, s.id, s)}`.
+%endif
 </%def>

src/mako/lib/util.py

@@ -339,9 +339,9 @@ def iter_nested_types(schemas):
                 ns = deepcopy(p)
                 ns.id = nested_type_name(prefix, pn)
                 ns[NESTED_TYPE_MARKER] = True
-                if 'items' in p:
-                    ns.update(p.items.iteritems())
+
                 yield ns
+                
                 for np in iter_nested_properties(prefix + canonical_type_name(pn), ns.properties):
                     yield np
             elif _is_map_prop(p):