From e2cd0f4fb42b1fae65ad22e8efde9804446e6254 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 7 May 2014 09:53:46 +0200 Subject: qapi: Replace start_optional()/end_optional() by optional() Semantics of end_optional() differ subtly from the other end_FOO() callbacks: when start_FOO() succeeds, the matching end_FOO() gets called regardless of what happens in between. end_optional() gets called only when everything in between succeeds as well. Entirely undocumented, like all of the visitor API. The only user of Visitor Callback end_optional() never did anything, and was removed in commit 9f9ab46. I'm about to clean up error handling in the generated visitor code, and end_optional() is in my way. No users mean no test cases, and making non-trivial cleanup transformations without test cases doesn't strike me as a good idea. Drop end_optional(), and rename start_optional() to optional(). We can always go back to a pair of callbacks when we have an actual need. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Signed-off-by: Luiz Capitulino --- scripts/qapi-commands.py | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'scripts/qapi-commands.py') diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py index 1399826..341dba2 100644 --- a/scripts/qapi-commands.py +++ b/scripts/qapi-commands.py @@ -131,7 +131,7 @@ v = qmp_input_get_visitor(mi); for argname, argtype, optional, structured in parse_args(args): if optional: ret += mcgen(''' -visit_start_optional(v, &has_%(c_name)s, "%(name)s", %(errp)s); +visit_optional(v, &has_%(c_name)s, "%(name)s", %(errp)s); if (has_%(c_name)s) { ''', c_name=c_var(argname), name=argname, errp=errparg) @@ -145,8 +145,7 @@ if (has_%(c_name)s) { pop_indent() ret += mcgen(''' } -visit_end_optional(v, %(errp)s); -''', errp=errparg) +''') if dealloc: ret += mcgen(''' -- cgit v1.1