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Re: [Qemu-devel] [PATCH v10 08/25] qapi-types: Refactor base fields outp
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v10 08/25] qapi-types: Refactor base fields output |
Date: |
Fri, 23 Oct 2015 17:06:59 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Eric Blake <address@hidden> writes:
> Move code from gen_union() into gen_struct_fields() in order for
> a later patch to share code when enumerating inherited fields
> for struct types.
>
> No change to generated code.
>
> Signed-off-by: Eric Blake <address@hidden>
>
> ---
> v10: new patch, split off of 5/17
> ---
> scripts/qapi-types.py | 21 ++++++++++++---------
> 1 file changed, 12 insertions(+), 9 deletions(-)
>
> diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
> index 4fe618e..a97cc10 100644
> --- a/scripts/qapi-types.py
> +++ b/scripts/qapi-types.py
> @@ -51,9 +51,19 @@ def gen_struct_field(name, typ, optional):
> return ret
>
>
> -def gen_struct_fields(members):
> +def gen_struct_fields(members, base=None):
> ret = ''
>
> + if base:
> + ret += mcgen('''
> + /* Members inherited from %(c_name)s: */
> +''',
> + c_name=base.c_name())
> + ret += gen_struct_fields(base.members)
> + ret += mcgen('''
> + /* Own members: */
> +''')
> +
> for memb in members:
> ret += gen_struct_field(memb.name, memb.type, memb.optional)
> return ret
> @@ -126,14 +136,7 @@ struct %(c_name)s {
> ''',
> c_name=c_name(name))
> if base:
> - ret += mcgen('''
> - /* Members inherited from %(c_name)s: */
> -''',
> - c_name=c_name(base.name))
> - ret += gen_struct_fields(base.members)
> - ret += mcgen('''
> - /* Own members: */
> -''')
> + ret += gen_struct_fields([], base)
> else:
> ret += mcgen('''
> %(c_type)s kind;
One baby step towards
gen_struct_fields(members, base);
which is where we want both gen_struct() and gen_union() to go.
Slightly confusing: members are *local* members, while base.members are
*all* members. But the same exists elsewhere already, so let's not
worry about it.
I kind of dislike gen_struct_fields() taking two parameters and calling
itself for one, but I guess we can reconsider after gen_struct() and
gen_union() are unified. gen_struct_fields() might have just one caller
then.
- [Qemu-devel] [PATCH v10 05/25] qapi: Reserve 'q_*' and 'has_*' member names, (continued)
[Qemu-devel] [PATCH v10 02/25] qapi: More idiomatic string operations, Eric Blake, 2015/10/23
[Qemu-devel] [PATCH v10 03/25] qapi: More robust conditions for when labels are needed, Eric Blake, 2015/10/23
[Qemu-devel] [PATCH v10 06/25] vnc: Hoist allocation of VncBasicInfo to callers, Eric Blake, 2015/10/23
[Qemu-devel] [PATCH v10 08/25] qapi-types: Refactor base fields output, Eric Blake, 2015/10/23
- Re: [Qemu-devel] [PATCH v10 08/25] qapi-types: Refactor base fields output,
Markus Armbruster <=
[Qemu-devel] [PATCH v10 01/25] tests/qapi-schema: Test for reserved names, empty struct, Eric Blake, 2015/10/23
[Qemu-devel] [PATCH v10 04/25] qapi: Reserve '*List' type names for list types, Eric Blake, 2015/10/23
[Qemu-devel] [PATCH v10 13/25] qapi-visit: Convert to new qapi union layout, Eric Blake, 2015/10/23