[Yunq] Move to using jinja for codegen.

yunq/yunq.py

@@ -1,8 +1,10 @@
-#! /usr/bin/python
+#! python3
 import os
+import pathlib
 import sys
 
-from codegen_message import *
+from jinja2 import Environment, FileSystemLoader
+
 from parser import *
 
 def main():
@@ -20,11 +22,22 @@ def main():
         ast = parser.parse()
         type_check(ast)
 
+    messages = [m for m in ast if type(m) is Message]
+    interfaces = [i for i in ast if type(i) is Interface]
 
+    jinja_env = Environment(loader=FileSystemLoader(pathlib.Path(__file__).parent.resolve()))
+
+    message_header_tmpl = jinja_env.get_template("message.h.jinja")
     with open(filename + '.h', mode='w') as f:
-        f.write(generate_message_header(ast))
+        message_header = message_header_tmpl.render(messages=messages)
+        f.write(message_header)
+
+    message_impl_tmpl = jinja_env.get_template("message.cpp.jinja")
+    message_impl_tmpl.globals['Type'] = Type
     with open(filename + '.cpp', mode='w') as f:
-        f.write(generate_message_impl(filename, ast))
+        message_impl =  message_impl_tmpl.render(file=filename, messages=messages)
+        f.write(message_impl)
+
 
 if __name__ == "__main__":
     main()