From 655519030b5d20967ae3afa1fe91ef5ad4406065 Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Wed, 17 Feb 2016 23:48:22 -0700 Subject: qapi-visit: Less indirection in visit_type_Foo_fields() We were passing 'Foo **obj' to the internal helper function, but all uses within the helper were via reads of '*obj'. Refactor things to pass one less level of indirection, by having the callers dereference before calling. For an example of the generated code change: |-static void visit_type_BalloonInfo_fields(Visitor *v, BalloonInfo **obj, Error **errp) |+static void visit_type_BalloonInfo_fields(Visitor *v, BalloonInfo *obj, Error **errp) | { | Error *err = NULL; | |- visit_type_int(v, "actual", &(*obj)->actual, &err); |+ visit_type_int(v, "actual", &obj->actual, &err); | error_propagate(errp, err); | } | |@@ -261,7 +261,7 @@ void visit_type_BalloonInfo(Visitor *v, | if (!*obj) { | goto out_obj; | } |- visit_type_BalloonInfo_fields(v, obj, &err); |+ visit_type_BalloonInfo_fields(v, *obj, &err); | out_obj: The refactoring will also make it easier to reuse the helpers in a future patch when implicit structs are stored directly in the parent struct rather than boxed through a pointer. Signed-off-by: Eric Blake Message-Id: <1455778109-6278-9-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster --- scripts/qapi-visit.py | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'scripts') diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py index 4a04354..a8b1057 100644 --- a/scripts/qapi-visit.py +++ b/scripts/qapi-visit.py @@ -39,7 +39,7 @@ def gen_visit_fields_decl(typ): if typ.name not in struct_fields_seen: ret += mcgen(''' -static void visit_type_%(c_type)s_fields(Visitor *v, %(c_type)s **obj, Error **errp); +static void visit_type_%(c_type)s_fields(Visitor *v, %(c_type)s *obj, Error **errp); ''', c_type=typ.c_name()) struct_fields_seen.add(typ.name) @@ -61,7 +61,7 @@ static void visit_type_implicit_%(c_type)s(Visitor *v, %(c_type)s **obj, Error * visit_start_implicit_struct(v, (void **)obj, sizeof(%(c_type)s), &err); if (!err) { - visit_type_%(c_type)s_fields(v, obj, errp); + visit_type_%(c_type)s_fields(v, *obj, errp); visit_end_implicit_struct(v); } error_propagate(errp, err); @@ -85,7 +85,7 @@ def gen_visit_struct_fields(name, base, members, variants): struct_fields_seen.add(name) ret += mcgen(''' -static void visit_type_%(c_name)s_fields(Visitor *v, %(c_name)s **obj, Error **errp) +static void visit_type_%(c_name)s_fields(Visitor *v, %(c_name)s *obj, Error **errp) { Error *err = NULL; @@ -94,19 +94,19 @@ static void visit_type_%(c_name)s_fields(Visitor *v, %(c_name)s **obj, Error **e if base: ret += mcgen(''' - visit_type_%(c_type)s_fields(v, (%(c_type)s **)obj, &err); + visit_type_%(c_type)s_fields(v, (%(c_type)s *)obj, &err); ''', c_type=base.c_name()) ret += gen_err_check() - ret += gen_visit_fields(members, prefix='(*obj)->') + ret += gen_visit_fields(members, prefix='obj->') if variants: ret += mcgen(''' - if (!visit_start_union(v, !!(*obj)->u.data, &err) || err) { + if (!visit_start_union(v, !!obj->u.data, &err) || err) { goto out; } - switch ((*obj)->%(c_name)s) { + switch (obj->%(c_name)s) { ''', c_name=c_name(variants.tag_member.name)) @@ -121,13 +121,13 @@ static void visit_type_%(c_name)s_fields(Visitor *v, %(c_name)s **obj, Error **e variants.tag_member.type.prefix)) if simple_union_type: ret += mcgen(''' - visit_type_%(c_type)s(v, "data", &(*obj)->u.%(c_name)s, &err); + visit_type_%(c_type)s(v, "data", &obj->u.%(c_name)s, &err); ''', c_type=simple_union_type.c_name(), c_name=c_name(var.name)) else: ret += mcgen(''' - visit_type_implicit_%(c_type)s(v, &(*obj)->u.%(c_name)s, &err); + visit_type_implicit_%(c_type)s(v, &obj->u.%(c_name)s, &err); ''', c_type=var.type.c_name(), c_name=c_name(var.name)) @@ -270,7 +270,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error if (!*obj) { goto out_obj; } - visit_type_%(c_name)s_fields(v, obj, &err); + visit_type_%(c_name)s_fields(v, *obj, &err); error_propagate(errp, err); err = NULL; out_obj: -- cgit v1.1