diff options
author | Eric Blake <eblake@redhat.com> | 2016-01-29 06:48:54 -0700 |
---|---|---|
committer | Markus Armbruster <armbru@redhat.com> | 2016-02-08 17:29:56 +0100 |
commit | 51e72bc1dd6ace6e91d675f41a1f09bd00ab8043 (patch) | |
tree | ce8eccf21a3dfa59301dcea8cc9bd96fcf01854c /hw/acpi | |
parent | 4fa45492c3387c0fa51e8e81160ac9a7814f44a2 (diff) |
qapi: Swap visit_* arguments for consistent 'name' placement
JSON uses "name":value, but many of our visitor interfaces were
called with visit_type_FOO(v, &value, name, errp). This can be
a bit confusing to have to mentally swap the parameter order to
match JSON order. It's particularly bad for visit_start_struct(),
where the 'name' parameter is smack in the middle of the
otherwise-related group of 'obj, kind, size' parameters! It's
time to do a global swap of the parameter ordering, so that the
'name' parameter is always immediately after the Visitor argument.
Additional reason in favor of the swap: the existing include/qjson.h
prefers listing 'name' first in json_prop_*(), and I have plans to
unify that file with the qapi visitors; listing 'name' first in
qapi will minimize churn to the (admittedly few) qjson.h clients.
Later patches will then fix docs, object.h, visitor-impl.h, and
those clients to match.
Done by first patching scripts/qapi*.py by hand to make generated
files do what I want, then by running the following Coccinelle
script to affect the rest of the code base:
$ spatch --sp-file script `git grep -l '\bvisit_' -- '**/*.[ch]'`
I then had to apply some touchups (Coccinelle insisted on TAB
indentation in visitor.h, and botched the signature of
visit_type_enum() by rewriting 'const char *const strings[]' to
the syntactically invalid 'const char*const[] strings'). The
movement of parameters is sufficient to provoke compiler errors
if any callers were missed.
// Part 1: Swap declaration order
@@
type TV, TErr, TObj, T1, T2;
identifier OBJ, ARG1, ARG2;
@@
void visit_start_struct
-(TV v, TObj OBJ, T1 ARG1, const char *name, T2 ARG2, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
{ ... }
@@
type bool, TV, T1;
identifier ARG1;
@@
bool visit_optional
-(TV v, T1 ARG1, const char *name)
+(TV v, const char *name, T1 ARG1)
{ ... }
@@
type TV, TErr, TObj, T1;
identifier OBJ, ARG1;
@@
void visit_get_next_type
-(TV v, TObj OBJ, T1 ARG1, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, TErr errp)
{ ... }
@@
type TV, TErr, TObj, T1, T2;
identifier OBJ, ARG1, ARG2;
@@
void visit_type_enum
-(TV v, TObj OBJ, T1 ARG1, T2 ARG2, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
{ ... }
@@
type TV, TErr, TObj;
identifier OBJ;
identifier VISIT_TYPE =~ "^visit_type_";
@@
void VISIT_TYPE
-(TV v, TObj OBJ, const char *name, TErr errp)
+(TV v, const char *name, TObj OBJ, TErr errp)
{ ... }
// Part 2: swap caller order
@@
expression V, NAME, OBJ, ARG1, ARG2, ERR;
identifier VISIT_TYPE =~ "^visit_type_";
@@
(
-visit_start_struct(V, OBJ, ARG1, NAME, ARG2, ERR)
+visit_start_struct(V, NAME, OBJ, ARG1, ARG2, ERR)
|
-visit_optional(V, ARG1, NAME)
+visit_optional(V, NAME, ARG1)
|
-visit_get_next_type(V, OBJ, ARG1, NAME, ERR)
+visit_get_next_type(V, NAME, OBJ, ARG1, ERR)
|
-visit_type_enum(V, OBJ, ARG1, ARG2, NAME, ERR)
+visit_type_enum(V, NAME, OBJ, ARG1, ARG2, ERR)
|
-VISIT_TYPE(V, OBJ, NAME, ERR)
+VISIT_TYPE(V, NAME, OBJ, ERR)
)
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-19-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'hw/acpi')
-rw-r--r-- | hw/acpi/core.c | 4 | ||||
-rw-r--r-- | hw/acpi/ich9.c | 14 |
2 files changed, 9 insertions, 9 deletions
diff --git a/hw/acpi/core.c b/hw/acpi/core.c index edf3f960a7..3a14e90cd0 100644 --- a/hw/acpi/core.c +++ b/hw/acpi/core.c @@ -243,7 +243,7 @@ void acpi_table_add(const QemuOpts *opts, Error **errp) OptsVisitor *ov; ov = opts_visitor_new(opts); - visit_type_AcpiTableOptions(opts_get_visitor(ov), &hdrs, NULL, &err); + visit_type_AcpiTableOptions(opts_get_visitor(ov), NULL, &hdrs, &err); opts_visitor_cleanup(ov); } @@ -302,7 +302,7 @@ out: QapiDeallocVisitor *dv; dv = qapi_dealloc_visitor_new(); - visit_type_AcpiTableOptions(qapi_dealloc_get_visitor(dv), &hdrs, NULL, + visit_type_AcpiTableOptions(qapi_dealloc_get_visitor(dv), NULL, &hdrs, NULL); qapi_dealloc_visitor_cleanup(dv); } diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c index 746d8901e4..c3b6035f34 100644 --- a/hw/acpi/ich9.c +++ b/hw/acpi/ich9.c @@ -290,7 +290,7 @@ static void ich9_pm_get_gpe0_blk(Object *obj, Visitor *v, ICH9LPCPMRegs *pm = opaque; uint32_t value = pm->pm_io_base + ICH9_PMIO_GPE0_STS; - visit_type_uint32(v, &value, name, errp); + visit_type_uint32(v, name, &value, errp); } static bool ich9_pm_get_memory_hotplug_support(Object *obj, Error **errp) @@ -315,7 +315,7 @@ static void ich9_pm_get_disable_s3(Object *obj, Visitor *v, ICH9LPCPMRegs *pm = opaque; uint8_t value = pm->disable_s3; - visit_type_uint8(v, &value, name, errp); + visit_type_uint8(v, name, &value, errp); } static void ich9_pm_set_disable_s3(Object *obj, Visitor *v, @@ -326,7 +326,7 @@ static void ich9_pm_set_disable_s3(Object *obj, Visitor *v, Error *local_err = NULL; uint8_t value; - visit_type_uint8(v, &value, name, &local_err); + visit_type_uint8(v, name, &value, &local_err); if (local_err) { goto out; } @@ -342,7 +342,7 @@ static void ich9_pm_get_disable_s4(Object *obj, Visitor *v, ICH9LPCPMRegs *pm = opaque; uint8_t value = pm->disable_s4; - visit_type_uint8(v, &value, name, errp); + visit_type_uint8(v, name, &value, errp); } static void ich9_pm_set_disable_s4(Object *obj, Visitor *v, @@ -353,7 +353,7 @@ static void ich9_pm_set_disable_s4(Object *obj, Visitor *v, Error *local_err = NULL; uint8_t value; - visit_type_uint8(v, &value, name, &local_err); + visit_type_uint8(v, name, &value, &local_err); if (local_err) { goto out; } @@ -369,7 +369,7 @@ static void ich9_pm_get_s4_val(Object *obj, Visitor *v, ICH9LPCPMRegs *pm = opaque; uint8_t value = pm->s4_val; - visit_type_uint8(v, &value, name, errp); + visit_type_uint8(v, name, &value, errp); } static void ich9_pm_set_s4_val(Object *obj, Visitor *v, @@ -380,7 +380,7 @@ static void ich9_pm_set_s4_val(Object *obj, Visitor *v, Error *local_err = NULL; uint8_t value; - visit_type_uint8(v, &value, name, &local_err); + visit_type_uint8(v, name, &value, &local_err); if (local_err) { goto out; } |