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qapi: add explicit null to string input and output visitors

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This may be used for deprecated object properties that are kept for
backwards compatibility.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2016-12-16 16:26:09 +01:00 • committed by David Gibson
parent 6d034b7bf8
commit a733371214
2 changed files with 25 additions and 0 deletions
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11
qapi/string-input-visitor.c
View file

@ -326,6 +326,16 @@ static void parse_type_number(Visitor *v, const char *name, double *obj,
*obj = val;
}
static void parse_type_null(Visitor *v, const char *name, Error **errp)
{
StringInputVisitor *siv = to_siv(v);
if (!siv->string || siv->string[0]) {
error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
"null");
}
}
static void string_input_free(Visitor *v)
{
StringInputVisitor *siv = to_siv(v);
@ -349,6 +359,7 @@ Visitor *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.type_null = parse_type_null;
v->visitor.start_list = start_list;
v->visitor.next_list = next_list;
v->visitor.check_list = check_list;