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authorMarkus Armbruster <armbru@redhat.com>2014-05-07 09:53:46 +0200
committerLuiz Capitulino <lcapitulino@redhat.com>2014-05-15 14:00:45 -0400
commite2cd0f4fb42b1fae65ad22e8efde9804446e6254 (patch)
treef8ea58b96ee1114f9dd0c45d67d567faec516df3 /qapi
parentcbc95538eda98929d2c5c8ff0d9db9043fcf1ae6 (diff)
downloadqemu-arm-e2cd0f4fb42b1fae65ad22e8efde9804446e6254.tar.gz
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 <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Diffstat (limited to 'qapi')
-rw-r--r--qapi/opts-visitor.c5
-rw-r--r--qapi/qapi-visit-core.c15
-rw-r--r--qapi/qmp-input-visitor.c6
-rw-r--r--qapi/string-input-visitor.c6
4 files changed, 12 insertions, 20 deletions
diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
index 87c1c789c9..16382e7a65 100644
--- a/qapi/opts-visitor.c
+++ b/qapi/opts-visitor.c
@@ -484,8 +484,7 @@ opts_type_size(Visitor *v, uint64_t *obj, const char *name, Error **errp)
static void
-opts_start_optional(Visitor *v, bool *present, const char *name,
- Error **errp)
+opts_optional(Visitor *v, bool *present, const char *name, Error **errp)
{
OptsVisitor *ov = DO_UPCAST(OptsVisitor, visitor, v);
@@ -528,7 +527,7 @@ opts_visitor_new(const QemuOpts *opts)
/* type_number() is not filled in, but this is not the first visitor to
* skip some mandatory methods... */
- ov->visitor.start_optional = &opts_start_optional;
+ ov->visitor.optional = &opts_optional;
ov->opts_root = opts;
diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index 1f7475c0f3..ffd76372d1 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -69,18 +69,11 @@ void visit_end_list(Visitor *v, Error **errp)
v->end_list(v, errp);
}
-void visit_start_optional(Visitor *v, bool *present, const char *name,
- Error **errp)
+void visit_optional(Visitor *v, bool *present, const char *name,
+ Error **errp)
{
- if (!error_is_set(errp) && v->start_optional) {
- v->start_optional(v, present, name, errp);
- }
-}
-
-void visit_end_optional(Visitor *v, Error **errp)
-{
- if (!error_is_set(errp) && v->end_optional) {
- v->end_optional(v, errp);
+ if (!error_is_set(errp) && v->optional) {
+ v->optional(v, present, name, errp);
}
}
diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
index a2bed1ef10..d8612062f1 100644
--- a/qapi/qmp-input-visitor.c
+++ b/qapi/qmp-input-visitor.c
@@ -286,8 +286,8 @@ static void qmp_input_type_number(Visitor *v, double *obj, const char *name,
}
}
-static void qmp_input_start_optional(Visitor *v, bool *present,
- const char *name, Error **errp)
+static void qmp_input_optional(Visitor *v, bool *present, const char *name,
+ Error **errp)
{
QmpInputVisitor *qiv = to_qiv(v);
QObject *qobj = qmp_input_get_object(qiv, name, true);
@@ -329,7 +329,7 @@ QmpInputVisitor *qmp_input_visitor_new(QObject *obj)
v->visitor.type_bool = qmp_input_type_bool;
v->visitor.type_str = qmp_input_type_str;
v->visitor.type_number = qmp_input_type_number;
- v->visitor.start_optional = qmp_input_start_optional;
+ v->visitor.optional = qmp_input_optional;
v->visitor.get_next_type = qmp_input_get_next_type;
qmp_input_push(v, obj, NULL);
diff --git a/qapi/string-input-visitor.c b/qapi/string-input-visitor.c
index 793548ae3a..5780944792 100644
--- a/qapi/string-input-visitor.c
+++ b/qapi/string-input-visitor.c
@@ -120,8 +120,8 @@ static void parse_type_number(Visitor *v, double *obj, const char *name,
*obj = val;
}
-static void parse_start_optional(Visitor *v, bool *present,
- const char *name, Error **errp)
+static void parse_optional(Visitor *v, bool *present, const char *name,
+ Error **errp)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
@@ -155,7 +155,7 @@ StringInputVisitor *string_input_visitor_new(const char *str)
v->visitor.type_bool = parse_type_bool;
v->visitor.type_str = parse_type_str;
v->visitor.type_number = parse_type_number;
- v->visitor.start_optional = parse_start_optional;
+ v->visitor.optional = parse_optional;
v->string = str;
return v;