[Qemu-devel] [PATCH] scripts: qapi-event.py: support vendor extension

[Luiz Capitulino <lcapitulino@redhat.com>]

The event code generator barfs when it sees a dot in an event
argument, this makes it impossible to support vendor extensions
in event arguments as they always contain dots. Fix this by
replacing dots by hyphens in the generated code.

PS: Event names and QMP command arguments may suffer from the
same issue, but I'm not checking/fixing them today.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 scripts/qapi-event.py | 8 ++++----
 scripts/qapi.py       | 4 ++++
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py
index 601e307..485694b 100644
--- a/scripts/qapi-event.py
+++ b/scripts/qapi-event.py
@@ -23,11 +23,11 @@ def _generate_event_api_name(event_name, params):
     if params:
         for argname, argentry, optional, structured in parse_args(params):
             if optional:
-                api_name += "bool has_%s,\n" % c_var(argname)
+                api_name += "bool has_%s,\n" % c_arg(argname)
                 api_name += "".ljust(l)
 
             api_name += "%s %s,\n" % (c_type(argentry, is_param=True),
-                                      c_var(argname))
+                                      c_arg(argname))
             api_name += "".ljust(l)
 
     api_name += "Error **errp)"
@@ -98,7 +98,7 @@ def generate_event_implement(api_name, event_name, params):
                 ret += mcgen("""
     if (has_%(var)s) {
 """,
-                             var = c_var(argname))
+                             var = c_arg(argname))
                 push_indent()
 
             if argentry == "str":
@@ -113,7 +113,7 @@ def generate_event_implement(api_name, event_name, params):
     }
 """,
                          var_type = var_type,
-                         var = c_var(argname),
+                         var = c_arg(argname),
                          type = type_name(argentry),
                          name = argname)
 
diff --git a/scripts/qapi.py b/scripts/qapi.py
index f2c6d1f..ddab14d 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -434,6 +434,10 @@ def c_var(name, protect=True):
 def c_fun(name, protect=True):
     return c_var(name, protect).replace('.', '_')
 
+# Should be used where vendor extensions are supported
+def c_arg(name):
+	return c_var(name).replace('.', '_')
+
 def c_list_type(name):
     return '%sList' % name
 
-- 
1.9.3