diff options
author | Markus Armbruster <armbru@redhat.com> | 2020-07-07 18:05:45 +0200 |
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committer | Markus Armbruster <armbru@redhat.com> | 2020-07-10 15:18:08 +0200 |
commit | 012d4c96e260f99d5ca95cd033274af4fb73b825 (patch) | |
tree | cae388bc5db572e4462147479e7a98e33d162fbe /scripts/qapi | |
parent | 3c4b89c3b209978f13bcb7ab4d375b81b6fdad99 (diff) | |
download | qemu-012d4c96e260f99d5ca95cd033274af4fb73b825.zip qemu-012d4c96e260f99d5ca95cd033274af4fb73b825.tar.gz qemu-012d4c96e260f99d5ca95cd033274af4fb73b825.tar.bz2 |
qapi: Make visitor functions taking Error ** return bool, not void
See recent commit "error: Document Error API usage rules" for
rationale.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-18-armbru@redhat.com>
Diffstat (limited to 'scripts/qapi')
-rw-r--r-- | scripts/qapi/visit.py | 58 |
1 files changed, 24 insertions, 34 deletions
diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py index d5d7a10..ba0cf0b 100644 --- a/scripts/qapi/visit.py +++ b/scripts/qapi/visit.py @@ -23,7 +23,7 @@ def gen_visit_decl(name, scalar=False): if not scalar: c_type += '*' return mcgen(''' -void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_type)sobj, Error **errp); +bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_type)sobj, Error **errp); ''', c_name=c_name(name), c_type=c_type) @@ -31,7 +31,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_type)sobj, Error ** def gen_visit_members_decl(name): return mcgen(''' -void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp); +bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp); ''', c_name=c_name(name)) @@ -39,7 +39,7 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp); def gen_visit_object_members(name, base, members, variants): ret = mcgen(''' -void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp) +bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp) { Error *err = NULL; @@ -48,9 +48,8 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp) if base: ret += mcgen(''' - visit_type_%(c_type)s_members(v, (%(c_type)s *)obj, &err); - if (err) { - goto out; + if (!visit_type_%(c_type)s_members(v, (%(c_type)s *)obj, errp)) { + return false; } ''', c_type=base.c_name()) @@ -64,9 +63,8 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp) name=memb.name, c_name=c_name(memb.name)) push_indent() ret += mcgen(''' - visit_type_%(c_type)s(v, "%(name)s", &obj->%(c_name)s, &err); - if (err) { - goto out; + if (!visit_type_%(c_type)s(v, "%(name)s", &obj->%(c_name)s, errp)) { + return false; } ''', c_type=memb.type.c_name(), name=memb.name, @@ -112,15 +110,9 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp) } ''') - # 'goto out' produced for base, for each member, and if variants were - # present - if base or members or variants: - ret += mcgen(''' - -out: -''') ret += mcgen(''' error_propagate(errp, err); + return !err; } ''') return ret @@ -129,15 +121,14 @@ out: def gen_visit_list(name, element_type): return mcgen(''' -void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp) +bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp) { Error *err = NULL; %(c_name)s *tail; size_t size = sizeof(**obj); - visit_start_list(v, name, (GenericList **)obj, size, &err); - if (err) { - goto out; + if (!visit_start_list(v, name, (GenericList **)obj, size, errp)) { + return false; } for (tail = *obj; tail; @@ -156,8 +147,8 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error qapi_free_%(c_name)s(*obj); *obj = NULL; } -out: error_propagate(errp, err); + return !err; } ''', c_name=c_name(name), c_elt_type=element_type.c_name()) @@ -166,11 +157,12 @@ out: def gen_visit_enum(name): return mcgen(''' -void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s *obj, Error **errp) +bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s *obj, Error **errp) { int value = *obj; - visit_type_enum(v, name, &value, &%(c_name)s_lookup, errp); + bool ok = visit_type_enum(v, name, &value, &%(c_name)s_lookup, errp); *obj = value; + return ok; } ''', c_name=c_name(name)) @@ -179,14 +171,13 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s *obj, Error def gen_visit_alternate(name, variants): ret = mcgen(''' -void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp) +bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp) { Error *err = NULL; - visit_start_alternate(v, name, (GenericAlternate **)obj, sizeof(**obj), - &err); - if (err) { - goto out; + if (!visit_start_alternate(v, name, (GenericAlternate **)obj, + sizeof(**obj), errp)) { + return false; } if (!*obj) { /* incomplete */ @@ -245,8 +236,8 @@ out_obj: qapi_free_%(c_name)s(*obj); *obj = NULL; } -out: error_propagate(errp, err); + return !err; } ''', name=name, c_name=c_name(name)) @@ -257,13 +248,12 @@ out: def gen_visit_object(name, base, members, variants): return mcgen(''' -void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp) +bool visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error **errp) { Error *err = NULL; - visit_start_struct(v, name, (void **)obj, sizeof(%(c_name)s), &err); - if (err) { - goto out; + if (!visit_start_struct(v, name, (void **)obj, sizeof(%(c_name)s), errp)) { + return false; } if (!*obj) { /* incomplete */ @@ -281,8 +271,8 @@ out_obj: qapi_free_%(c_name)s(*obj); *obj = NULL; } -out: error_propagate(errp, err); + return !err; } ''', c_name=c_name(name)) |