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| author | Eric Blake <eblake@redhat.com> | 2015-10-26 16:35:02 -0600 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2015-11-02 08:30:28 +0100 |
| commit | 5e59baf90a72cd25d38a3134edc029f4f022da74 (patch) | |
| tree | 392dbaed69ea07f8f5ad131bfb874c0bd80f5fba /scripts/qapi.py | |
| parent | e4ba22b31943ab02373359555bd7bcd66442632f (diff) | |
| download | qemu-5e59baf90a72cd25d38a3134edc029f4f022da74.tar.gz | |
qapi: Reserve 'u' member name
Now that we have separated union tag values from colliding with
non-variant C names, by naming the union 'u', we should reserve
this name for our use. Note that we want to forbid 'u' even in
a struct with no variants, because it is possible for a future
qemu release to extend QMP in a backwards-compatible manner while
converting from a struct to a flat union. Fortunately, no
existing clients were using this member name. If we ever find
the need for QMP to have a member 'u', we could at that time
relax things, perhaps by having c_name() munge the QMP member to
'q_u'.
Note that we cannot forbid 'u' everywhere (by adding the
rejection code to check_name()), because the existing QKeyCode
enum already uses it; therefore we only reserve it as a struct
type member name.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-24-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'scripts/qapi.py')
| -rw-r--r-- | scripts/qapi.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/qapi.py b/scripts/qapi.py index 00a16203df..7c50cc4c87 100644 --- a/scripts/qapi.py +++ b/scripts/qapi.py @@ -490,7 +490,7 @@ def check_type(expr_info, source, value, allow_array=False, for (key, arg) in value.items(): check_name(expr_info, "Member of %s" % source, key, allow_optional=allow_optional) - if c_name(key, False).startswith('has_'): + if c_name(key, False) == 'u' or c_name(key, False).startswith('has_'): raise QAPIExprError(expr_info, "Member of %s uses reserved name '%s'" % (source, key)) |