Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-12-17' into staging

QAPI patches for 2015-12-17

# gpg: Signature made Thu 17 Dec 2015 07:33:41 GMT using RSA key ID EB918653
# gpg:

Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-12-17' into staging

QAPI patches for 2015-12-17

# gpg: Signature made Thu 17 Dec 2015 07:33:41 GMT using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"

* remotes/armbru/tags/pull-qapi-2015-12-17: (40 commits)
qapi: Detect base class loops
qapi: Move duplicate collision checks to schema check()
qapi: Enforce (or whitelist) case conventions on qapi members
qapi: Track enum values by QAPISchemaMember, not string
qapi: Prepare new QAPISchemaMember base class
qapi: Shorter visits of optional fields
qapi: Simplify visits of optional fields
qapi: Fix alternates that accept 'number' but not 'int'
qapi: Inline _make_implicit_tag()
qapi-types: Drop unnedeed ._fwdefn
qapi: Simplify visiting of alternate types
qapi: Convert QType into QAPI built-in enum type
qobject: Rename qtype_code to QType
qobject: Simplify QObject
qapi: Change munging of CamelCase enum values
qapi: Add alias for ErrorClass
cpu: Convert CpuInfo into flat union
qapi: Remove obsolete tests for MAX collision
qapi: Don't let implicit enum MAX member collide
qapi: Tighten the regex on valid names
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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qapi: Enforce (or whitelist) case conventions on qapi members

We document that members of enums and objects should be
'lower-case', although we were not enforcing it. We have to
whitelist a few pre

qapi: Enforce (or whitelist) case conventions on qapi members

We document that members of enums and objects should be
'lower-case', although we were not enforcing it. We have to
whitelist a few pre-existing entities that violate the norms.
Add three new tests to expose the new error message, each of
which first uses the whitelisted name 'UuidInfo' to prove the
whitelist works, then triggers the failure (this is the same
pattern used in the existing returns-whitelist.json test).

Note that by adding this check, we have effectively forbidden
an entity with a case-insensitive clash of member names, for
any entity that is not on the whitelist (although there is
still the possibility to clash via '-' vs. '_').

Not done here: a future patch should also add naming convention
support and whitelist exceptions for command, event, and type
names.

The additions to QAPISchemaMember.check_clash() check whether
info['name'] is in the whitelist (the top-most entity name at
the point 'info' tracks), rather than self.owner (the type,
possibly implicit, that directly owns the member), because it
is easier to maintain the whitelist by the names actually in
the user's .json file, rather than worrying about the names
of implicit types.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1449033659-25497-14-git-send-email-eblake@redhat.com>
[Simplified a bit as per discussion with Eric]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

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