diff options
| author | Eric Blake <eblake@redhat.com> | 2016-01-29 06:48:59 -0700 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2016-02-08 17:29:57 +0100 |
| commit | 08f9541dec51700abef0c37994213164ca4e4fc9 (patch) | |
| tree | 2fbddce86ad35307b616aca8e795965e862b779f /include/qapi | |
| parent | bdd8e6b5d8a9def83d491a3f41c10424fc366258 (diff) | |
qapi: Drop unused error argument for list and implicit struct
No backend was setting an error when ending the visit of a list or
implicit struct, or when moving to the next list node. Make the
callers a bit easier to follow by making this a part of the contract,
and removing the errp argument - callers can then unconditionally end
an object as part of cleanup without having to think about whether a
second error is dominated by a first, because there is no second
error.
A later patch will then tackle the larger task of splitting
visit_end_struct(), which can indeed set an error.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1454075341-13658-24-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'include/qapi')
| -rw-r--r-- | include/qapi/visitor-impl.h | 9 | ||||
| -rw-r--r-- | include/qapi/visitor.h | 8 |
2 files changed, 11 insertions, 6 deletions
diff --git a/include/qapi/visitor-impl.h b/include/qapi/visitor-impl.h index 337f99973f..ea252f8e3a 100644 --- a/include/qapi/visitor-impl.h +++ b/include/qapi/visitor-impl.h @@ -24,11 +24,14 @@ struct Visitor void (*start_implicit_struct)(Visitor *v, void **obj, size_t size, Error **errp); - void (*end_implicit_struct)(Visitor *v, Error **errp); + /* May be NULL */ + void (*end_implicit_struct)(Visitor *v); void (*start_list)(Visitor *v, const char *name, Error **errp); - GenericList *(*next_list)(Visitor *v, GenericList **list, Error **errp); - void (*end_list)(Visitor *v, Error **errp); + /* Must be set */ + GenericList *(*next_list)(Visitor *v, GenericList **list); + /* Must be set */ + void (*end_list)(Visitor *v); void (*type_enum)(Visitor *v, const char *name, int *obj, const char *const strings[], Error **errp); diff --git a/include/qapi/visitor.h b/include/qapi/visitor.h index 997555dbd7..5e581dcf7e 100644 --- a/include/qapi/visitor.h +++ b/include/qapi/visitor.h @@ -1,6 +1,7 @@ /* * Core Definitions for QAPI Visitor Classes * + * Copyright (C) 2012-2016 Red Hat, Inc. * Copyright IBM, Corp. 2011 * * Authors: @@ -32,10 +33,11 @@ void visit_start_struct(Visitor *v, const char *name, void **obj, void visit_end_struct(Visitor *v, Error **errp); void visit_start_implicit_struct(Visitor *v, void **obj, size_t size, Error **errp); -void visit_end_implicit_struct(Visitor *v, Error **errp); +void visit_end_implicit_struct(Visitor *v); + void visit_start_list(Visitor *v, const char *name, Error **errp); -GenericList *visit_next_list(Visitor *v, GenericList **list, Error **errp); -void visit_end_list(Visitor *v, Error **errp); +GenericList *visit_next_list(Visitor *v, GenericList **list); +void visit_end_list(Visitor *v); /** * Check if an optional member @name of an object needs visiting. |