frontend: add syntax for inheritance
diff --git a/loxi_front_end/frontend.py b/loxi_front_end/frontend.py
index ab98c26..d25c2eb 100644
--- a/loxi_front_end/frontend.py
+++ b/loxi_front_end/frontend.py
@@ -60,8 +60,8 @@
for decl_ast in ast:
if decl_ast[0] == 'struct':
- members = [create_member(m_ast) for m_ast in decl_ast[2]]
- ofclass = OFClass(name=decl_ast[1], members=members)
+ members = [create_member(m_ast) for m_ast in decl_ast[3]]
+ ofclass = OFClass(name=decl_ast[1], superclass=decl_ast[2], members=members)
ofinput.classes.append(ofclass)
if decl_ast[0] == 'enum':
enum = OFEnum(name=decl_ast[1], values=[(x[0], x[1]) for x in decl_ast[2]])
diff --git a/loxi_front_end/parser.py b/loxi_front_end/parser.py
index 503a05a..7893008 100644
--- a/loxi_front_end/parser.py
+++ b/loxi_front_end/parser.py
@@ -54,7 +54,8 @@
type_member = P.Group(tag('type') + any_type + identifier + s('==') + integer)
data_member = P.Group(tag('data') + any_type - identifier)
struct_member = pad_member | type_member | data_member;
-struct = kw('struct') - identifier - s('{') + \
+parent = (s(':') - identifier) | tag(None)
+struct = kw('struct') - identifier - parent - s('{') + \
P.Group(P.ZeroOrMore(struct_member - s(';'))) + \
s('}') - s(';')