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qapi: Make more of qobject_to() 

This patch reworks some places which use either qobject_type() checks
plus qobject_to(), where the latter alone is sufficient, or NULL checks
plus qobject_type() checks where we can simply do a qobject_to() != NULL
check.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20180224154033.29559-6-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: rebase to qobject_to() parameter ordering]
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Max Reitz 2018-03-10 16:14:36 -06:00 committed by Eric Blake
parent cb51b976ba
commit 532fb53284
3 changed files with 20 additions and 17 deletions
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4
qapi/qobject-input-visitor.c
View File

@ -339,7 +339,7 @@ static GenericList *qobject_input_next_list(Visitor *v, GenericList *tail,
QObjectInputVisitor *qiv = to_qiv(v); QObjectInputVisitor *qiv = to_qiv(v);
StackObject *tos = QSLIST_FIRST(&qiv->stack); StackObject *tos = QSLIST_FIRST(&qiv->stack);
assert(tos && tos->obj && qobject_type(tos->obj) == QTYPE_QLIST); assert(tos && qobject_to(QList, tos->obj));
if (!tos->entry) { if (!tos->entry) {
return NULL; return NULL;
@ -353,7 +353,7 @@ static void qobject_input_check_list(Visitor *v, Error **errp)
QObjectInputVisitor *qiv = to_qiv(v); QObjectInputVisitor *qiv = to_qiv(v);
StackObject *tos = QSLIST_FIRST(&qiv->stack); StackObject *tos = QSLIST_FIRST(&qiv->stack);
assert(tos && tos->obj && qobject_type(tos->obj) == QTYPE_QLIST); assert(tos && qobject_to(QList, tos->obj));
if (tos->entry) { if (tos->entry) {
error_setg(errp, "Only %u list elements expected in %s", error_setg(errp, "Only %u list elements expected in %s",

13
qobject/json-parser.c
View File

@ -276,7 +276,8 @@ static void parser_context_free(JSONParserContext *ctxt)
*/ */
static int parse_pair(JSONParserContext *ctxt, QDict *dict, va_list *ap) static int parse_pair(JSONParserContext *ctxt, QDict *dict, va_list *ap)
{ {
QObject *key = NULL, *value; QObject *value;
QString *key = NULL;
JSONToken *peek, *token; JSONToken *peek, *token;
peek = parser_context_peek_token(ctxt); peek = parser_context_peek_token(ctxt);
@ -285,8 +286,8 @@ static int parse_pair(JSONParserContext *ctxt, QDict *dict, va_list *ap)
goto out; goto out;
} }
key = parse_value(ctxt, ap); key = qobject_to(QString, parse_value(ctxt, ap));
if (!key || qobject_type(key) != QTYPE_QSTRING) { if (!key) {
parse_error(ctxt, peek, "key is not a string in object"); parse_error(ctxt, peek, "key is not a string in object");
goto out; goto out;
} }
@ -308,14 +309,14 @@ static int parse_pair(JSONParserContext *ctxt, QDict *dict, va_list *ap)
goto out; goto out;
} }
qdict_put_obj(dict, qstring_get_str(qobject_to(QString, key)), value); qdict_put_obj(dict, qstring_get_str(key), value);
qobject_decref(key); QDECREF(key);
return 0; return 0;
out: out:
qobject_decref(key); QDECREF(key);
return -1; return -1;
} }

20
qobject/qdict.c
View File

@ -882,18 +882,20 @@ QObject *qdict_crumple(const QDict *src, Error **errp)
child = qdict_get(two_level, prefix); child = qdict_get(two_level, prefix);
if (suffix) { if (suffix) {
if (child) { QDict *child_dict = qobject_to(QDict, child);
if (qobject_type(child) != QTYPE_QDICT) { if (!child_dict) {
if (child) {
error_setg(errp, "Key %s prefix is already set as a scalar", error_setg(errp, "Key %s prefix is already set as a scalar",
prefix); prefix);
goto error; goto error;
} }
} else {
child = QOBJECT(qdict_new()); child_dict = qdict_new();
qdict_put_obj(two_level, prefix, child); qdict_put_obj(two_level, prefix, QOBJECT(child_dict));
} }
qobject_incref(ent->value); qobject_incref(ent->value);
qdict_put_obj(qobject_to(QDict, child), suffix, ent->value); qdict_put_obj(child_dict, suffix, ent->value);
} else { } else {
if (child) { if (child) {
error_setg(errp, "Key %s prefix is already set as a dict", error_setg(errp, "Key %s prefix is already set as a dict",
@ -913,9 +915,9 @@ QObject *qdict_crumple(const QDict *src, Error **errp)
multi_level = qdict_new(); multi_level = qdict_new();
for (ent = qdict_first(two_level); ent != NULL; for (ent = qdict_first(two_level); ent != NULL;
ent = qdict_next(two_level, ent)) { ent = qdict_next(two_level, ent)) {
QDict *dict = qobject_to(QDict, ent->value);
if (qobject_type(ent->value) == QTYPE_QDICT) { if (dict) {
child = qdict_crumple(qobject_to(QDict, ent->value), errp); child = qdict_crumple(dict, errp);
if (!child) { if (!child) {
goto error; goto error;
} }