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[Qemu-devel] [PATCH v7 13/18] qapi: Consistent generated code: prefer co
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PATCH v7 13/18] qapi: Consistent generated code: prefer common indentation |
Date: |
Tue, 29 Sep 2015 16:21:11 -0600 |
We had some pointless differences in the generated code for visit,
command marshalling, and events; unifying them makes it easier for
future patches to consolidate to common helper functions.
This is one patch of a series to clean up these differences.
This patch adjusts gen_visit_union() to use the same indentation
as other functions, namely, by jumping early to the error label
if the object was not set rather than placing the rest of the
body inside an if for when it is set.
No change in semantics to the generated code.
Signed-off-by: Eric Blake <address@hidden>
---
v7: tweak commit message, rebase to changed label indent
v6: split 9/46 into four patches, update docs where they are affected,
rebase with 7/46 placed later in series
---
scripts/qapi-visit.py | 53 ++++++++++++++++++++++++++-------------------------
1 file changed, 27 insertions(+), 26 deletions(-)
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 5a453ea..fe9780e 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -264,16 +264,18 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj,
const char *name, Error
if (err) {
goto out;
}
- if (*obj) {
+ if (!*obj) {
+ goto out_obj;
+ }
''',
c_name=c_name(name), name=name)
if base:
ret += mcgen('''
- visit_type_%(c_name)s_fields(v, obj, &err);
- if (err) {
- goto out_obj;
- }
+ visit_type_%(c_name)s_fields(v, obj, &err);
+ if (err) {
+ goto out_obj;
+ }
''',
c_name=c_name(name))
@@ -282,14 +284,14 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj,
const char *name, Error
# we pointlessly use a different key for simple unions
tag_key = 'type'
ret += mcgen('''
- visit_type_%(c_type)s(v, &(*obj)->%(c_name)s, "%(name)s", &err);
- if (err) {
- goto out_obj;
- }
- if (!visit_start_union(v, !!(*obj)->data, &err) || err) {
- goto out_obj;
- }
- switch ((*obj)->%(c_name)s) {
+ visit_type_%(c_type)s(v, &(*obj)->%(c_name)s, "%(name)s", &err);
+ if (err) {
+ goto out_obj;
+ }
+ if (!visit_start_union(v, !!(*obj)->data, &err) || err) {
+ goto out_obj;
+ }
+ switch ((*obj)->%(c_name)s) {
''',
c_type=variants.tag_member.type.c_name(),
# TODO ugly special case for simple union
@@ -302,37 +304,36 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj,
const char *name, Error
# TODO ugly special case for simple union
simple_union_type = var.simple_union_type()
ret += mcgen('''
- case %(case)s:
+ case %(case)s:
''',
case=c_enum_const(variants.tag_member.type.name,
var.name))
if simple_union_type:
ret += mcgen('''
- visit_type_%(c_type)s(v, &(*obj)->%(c_name)s, "data", &err);
+ visit_type_%(c_type)s(v, &(*obj)->%(c_name)s, "data", &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)->%(c_name)s, &err);
+ visit_type_implicit_%(c_type)s(v, &(*obj)->%(c_name)s, &err);
''',
c_type=var.type.c_name(),
c_name=c_name(var.name))
ret += mcgen('''
- break;
+ break;
''')
ret += mcgen('''
- default:
- abort();
- }
-out_obj:
- error_propagate(errp, err);
- err = NULL;
- visit_end_union(v, !!(*obj)->data, &err);
- error_propagate(errp, err);
- err = NULL;
+ default:
+ abort();
}
+out_obj:
+ error_propagate(errp, err);
+ err = NULL;
+ visit_end_union(v, !!(*obj)->data, &err);
+ error_propagate(errp, err);
+ err = NULL;
visit_end_struct(v, &err);
out:
error_propagate(errp, err);
--
2.4.3
- [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, (continued)
- [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Eric Blake, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Eric Blake, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Markus Armbruster, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Eric Blake, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Markus Armbruster, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Eric Blake, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Markus Armbruster, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Eric Blake, 2015/10/08
- Re: [Qemu-devel] [PATCH v7 05/18] qapi: Test for various name collisions, Markus Armbruster, 2015/10/08
[Qemu-devel] [PATCH v7 13/18] qapi: Consistent generated code: prefer common indentation,
Eric Blake <=
[Qemu-devel] [PATCH v7 11/18] qapi: Consistent generated code: prefer visitor 'v', Eric Blake, 2015/10/08
[Qemu-devel] [RFC PATCH v7 18/18] qapi: Use gen_err_check() in more places, Eric Blake, 2015/10/08
[Qemu-devel] [RFC PATCH v7 17/18] qapi: Simplify gen_visit_fields() error handling, Eric Blake, 2015/10/08
[Qemu-devel] [PATCH v7 03/18] qapi: Invoke exception superclass initializer, Eric Blake, 2015/10/08
[Qemu-devel] [PATCH v7 09/18] qapi: Reuse code for flat union base validation, Eric Blake, 2015/10/08
[Qemu-devel] [PATCH v7 10/18] qapi: Consistent generated code: prefer error 'err', Eric Blake, 2015/10/08
[Qemu-devel] [PATCH v7 08/18] qapi: Test use of 'number' within alternates, Eric Blake, 2015/10/08