api: fix regression that match set option has no default value

The commit 000589f3c "api: Implement UpdatePolicy()" introduced
a regression: if match-set-options is not defined in config file,
gobgpd starts with error: failed to get policy info: not found...

This fix set match-set-options to default when needed.

1 files changed, 13 insertions, 8 deletions

diff --git a/tools/pyang_plugins/bgpyang2golang.py b/tools/pyang_plugins/bgpyang2golang.py
index 62497f09..01ee9c3b 100644
--- a/tools/pyang_plugins/bgpyang2golang.py
+++ b/tools/pyang_plugins/bgpyang2golang.py
@@ -546,14 +546,6 @@ def emit_enum(prefix, name, stmt, substmts, fd):
         print(' %s: %d,' % (enum_name, i), file=fd)
     print('}\n', file=fd)
 
-    print('func (v %s) ToInt() int {' % type_name, file=fd)
-    print('i, ok := %sToIntMap[v]' % type_name, file=fd)
-    print('if !ok {', file=fd)
-    print('return -1', file=fd)
-    print('}', file=fd)
-    print('return i', file=fd)
-    print('}', file=fd)
-
     print('var IntTo%sMap = map[int]%s {' % (type_name, type_name), file=fd)
     for i, sub in enumerate(substmts):
         enum_name = '%s_%s' % (const_prefix, convert_const_prefix(sub.arg))
@@ -580,6 +572,19 @@ def emit_enum(prefix, name, stmt, substmts, fd):
         print(' return v', file=fd)
         print('}', file=fd)
 
+        print('func (v %s) ToInt() int {' % type_name, file=fd)
+        print('_v := v.DefaultAsNeeded()')
+        print('i, ok := %sToIntMap[_v]' % type_name, file=fd)
+
+    else:
+        print('func (v %s) ToInt() int {' % type_name, file=fd)
+        print('i, ok := %sToIntMap[v]' % type_name, file=fd)
+    print('if !ok {', file=fd)
+    print('return -1', file=fd)
+    print('}', file=fd)
+    print('return i', file=fd)
+    print('}', file=fd)
+
 
 def emit_typedef(ctx, mod, fd):
     prefix = mod.i_prefix