From: Eric Blake <[email protected]>
The generated code can call visit_end_union() without having called
visit_start_union(). Example:
if (!*obj) {
goto out_obj;
}
visit_type_CpuInfoBase_fields(v, (CpuInfoBase **)obj, &err);
if (err) {
goto out_obj; // if we go from here...
}
if (!visit_start_union(v, !!(*obj)->u.data, &err) || err) {
goto out_obj;
}
switch ((*obj)->arch) {
[...]
}
out_obj:
// ... then *obj is true, and ...
error_propagate(errp, err);
err = NULL;
if (*obj) {
// we end up here
visit_end_union(v, !!(*obj)->u.data, &err);
}
error_propagate(errp, err);
Harmless only because no visitor implements end_union(). Clean it up
anyway, by deleting the function as useless.
Messed up since we have visit_end_union (commit cee2ded).
Signed-off-by: Markus Armbruster <[email protected]>
Message-Id: <[email protected]>
[expand scope of patch to delete rather than repair]
Signed-off-by: Eric Blake <[email protected]>
Message-Id: <[email protected]>
---
include/qapi/visitor-impl.h | 1 -
include/qapi/visitor.h | 1 -
qapi/qapi-visit-core.c | 8 +-------
scripts/qapi-visit.py | 5 -----
4 files changed, 1 insertion(+), 14 deletions(-)
diff --git a/include/qapi/visitor-impl.h b/include/qapi/visitor-impl.h
index 44a21b7..f314894 100644
--- a/include/qapi/visitor-impl.h
+++ b/include/qapi/visitor-impl.h
@@ -58,7 +58,6 @@ struct Visitor
/* visit_type_size() falls back to (*type_uint64)() if type_size is unset
*/
void (*type_size)(Visitor *v, uint64_t *obj, const char *name, Error
**errp);
bool (*start_union)(Visitor *v, bool data_present, Error **errp);
- void (*end_union)(Visitor *v, bool data_present, Error **errp);
};
void input_type_enum(Visitor *v, int *obj, const char * const strings[],
diff --git a/include/qapi/visitor.h b/include/qapi/visitor.h
index a14a16d..83ac3ad 100644
--- a/include/qapi/visitor.h
+++ b/include/qapi/visitor.h
@@ -70,6 +70,5 @@ void visit_type_str(Visitor *v, char **obj, const char *name,
Error **errp);
void visit_type_number(Visitor *v, double *obj, const char *name, Error
**errp);
void visit_type_any(Visitor *v, QObject **obj, const char *name, Error **errp);
bool visit_start_union(Visitor *v, bool data_present, Error **errp);
-void visit_end_union(Visitor *v, bool data_present, Error **errp);
#endif
diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index 8473d3c..060316b 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -1,6 +1,7 @@
/*
* Core Definitions for QAPI Visitor Classes
*
+ * Copyright (C) 2012-2016 Red Hat, Inc.
* Copyright IBM, Corp. 2011
*
* Authors:
@@ -67,13 +68,6 @@ bool visit_start_union(Visitor *v, bool data_present, Error
**errp)
return true;
}
-void visit_end_union(Visitor *v, bool data_present, Error **errp)
-{
- if (v->end_union) {
- v->end_union(v, data_present, errp);
- }
-}
-
bool visit_optional(Visitor *v, bool *present, const char *name)
{
if (v->optional) {
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index ec16e36..f98bb5f 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -320,11 +320,6 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj,
const char *name, Error
out_obj:
error_propagate(errp, err);
err = NULL;
- if (*obj) {
- visit_end_union(v, !!(*obj)->u.data, &err);
- }
- error_propagate(errp, err);
- err = NULL;
visit_end_struct(v, &err);
out:
error_propagate(errp, err);
--
2.4.3
