Add the ability to code generated prepopulated static nested structs

tools/json_to_struct/struct_generator.py

Index: tools/json_to_struct/struct_generator.py
diff --git a/tools/json_to_struct/struct_generator.py b/tools/json_to_struct/struct_generator.py
index 501cb577e52d38eb6c01febb1ecc23b54c636e40..ea592f06a93cd19e435a50dcf037eeda113e0a49 100644
--- a/tools/json_to_struct/struct_generator.py
+++ b/tools/json_to_struct/struct_generator.py
@@ -28,6 +28,8 @@ def GenerateField(field_info):
     return 'const %s %s' % (field_info['ctype'], field)
   elif type == 'array':
     return _GenerateArrayField(field_info)
+  elif type == 'object':

[beaudoin, 2015/07/06 16:01:12]

Would 'struct' be better than 'object' given that "object" typically refers to
an instance and here we're talking about the type. Also, object makes me think
of 'class' rather than 'struct'. Anyway, your call.

[danduong, 2015/07/08 23:07:03]

Done.

+    return 'const %s %s' % (field_info['type_name'], field)
   else:
     raise RuntimeError('Unknown field type "%s"' % type)
 
@@ -38,6 +40,14 @@ def GenerateStruct(type_name, schema):
   lines = [];
   lines.append('struct %s {' % type_name)
   for field_info in schema:
+    if field_info['type'] == 'object':
+      lines.insert(0, GenerateStruct(field_info['type_name'],
+                                     field_info['fields']))
+    elif (field_info['type'] == 'array'
+          and field_info['contents']['type'] == 'object'):
+      contents = field_info['contents']
+      lines.insert(0, GenerateStruct(contents['type_name'],
+                                     contents['fields']))
     lines.append('  ' + GenerateField(field_info) + ';')
   lines.append('};');
   return '\n'.join(lines) + '\n';