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authorEric Blake <eblake@redhat.com>2015-12-01 22:20:52 -0700
committerMarkus Armbruster <armbru@redhat.com>2015-12-17 08:21:29 +0100
commit5cdc8831a795fb8452d7e34f644202fd724e122a (patch)
treeed3741502d2d42dfda844d45beedf4307168eaad /qapi
parentd00341af384665d259af475b14c96bb8414df415 (diff)
qapi: Simplify visits of optional fields
None of the visitor callbacks would set an error when testing if an optional field was present; make this part of the interface contract by eliminating the errp argument. The resulting generated code has a nice diff: |- visit_optional(v, &has_fdset_id, "fdset-id", &err); |- if (err) { |- goto out; |- } |+ visit_optional(v, &has_fdset_id, "fdset-id"); | if (has_fdset_id) { | visit_type_int(v, &fdset_id, "fdset-id", &err); | if (err) { | goto out; | } | } Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1449033659-25497-9-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'qapi')
-rw-r--r--qapi/opts-visitor.c2
-rw-r--r--qapi/qapi-visit-core.c5
-rw-r--r--qapi/qmp-input-visitor.c3
-rw-r--r--qapi/string-input-visitor.c3
4 files changed, 5 insertions, 8 deletions
diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
index cd10392f18..ef5fb8b815 100644
--- a/qapi/opts-visitor.c
+++ b/qapi/opts-visitor.c
@@ -488,7 +488,7 @@ opts_type_size(Visitor *v, uint64_t *obj, const char *name, Error **errp)
static void
-opts_optional(Visitor *v, bool *present, const char *name, Error **errp)
+opts_optional(Visitor *v, bool *present, const char *name)
{
OptsVisitor *ov = DO_UPCAST(OptsVisitor, visitor, v);
diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index cee76bc649..e07d6f962f 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -73,11 +73,10 @@ void visit_end_union(Visitor *v, bool data_present, Error **errp)
}
}
-void visit_optional(Visitor *v, bool *present, const char *name,
- Error **errp)
+void visit_optional(Visitor *v, bool *present, const char *name)
{
if (v->optional) {
- v->optional(v, present, name, errp);
+ v->optional(v, present, name);
}
}
diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
index 26b7414178..932b5f3ced 100644
--- a/qapi/qmp-input-visitor.c
+++ b/qapi/qmp-input-visitor.c
@@ -303,8 +303,7 @@ static void qmp_input_type_any(Visitor *v, QObject **obj, const char *name,
*obj = qobj;
}
-static void qmp_input_optional(Visitor *v, bool *present, const char *name,
- Error **errp)
+static void qmp_input_optional(Visitor *v, bool *present, const char *name)
{
QmpInputVisitor *qiv = to_qiv(v);
QObject *qobj = qmp_input_get_object(qiv, name, true);
diff --git a/qapi/string-input-visitor.c b/qapi/string-input-visitor.c
index bbd6a5456c..dee780a2da 100644
--- a/qapi/string-input-visitor.c
+++ b/qapi/string-input-visitor.c
@@ -299,8 +299,7 @@ static void parse_type_number(Visitor *v, double *obj, const char *name,
*obj = val;
}
-static void parse_optional(Visitor *v, bool *present, const char *name,
- Error **errp)
+static void parse_optional(Visitor *v, bool *present, const char *name)
{
StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);