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[Qemu-devel] [PATCH v4 10/10] qapi: Populate info['name'] for each entit
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PATCH v4 10/10] qapi: Populate info['name'] for each entity |
Date: |
Sat, 5 Mar 2016 09:16:35 -0700 |
Every non-implicit entity is associated with an 'info'
dictionary, but it is not easy to reverse-engineer the name of
the top-most entity associated with that 'info'. Our use of
'case_whitelist' (added in commit 893e1f2) is thus currently
tied to the owner of a member instead; but as the previous patch
showed with CpuInfo, this requires whitelist exceptions to know
how an implicit name will be generated.
While we have a ._pretty_owner() that maps from implicit names
back to a human readable phrase, that produces more than just a
plain top-level entity name. What's more, the current use of
._pretty_owner() is via .check_clash(), which can be called on
the same member object more than once (once through the
standalone type, and a second time when used as a base class of
a derived tpye); if a clash is only introduced in the derived
class, using ._pretty_owner() to report the error on behalf of
the base class named in member.owner seems wrong. Therefore,
we need a new mechanism.
Add a new info['name'] field to track the information we need,
allowing us to change 'case_whitelist' to use only names present
in the qapi files.
Unfortunately, there is no one good place to add the mapping:
at the point 'info' is created in QAPISchemaParser.__init__(),
we don't know the name. Info is then stored into
QAPISchemaParser.exprs, which then then gets fed to
QAPISchema.__init__() via the global check_exprs(), but we want
check_exprs() to go away. And QAPISchema._def_exprs() sees
every entity, except that the various _def_FOO() helpers don't
return anything. So we have to modify all of the _def_FOO()
methods.
Signed-off-by: Eric Blake <address@hidden>
---
v4: Change series again :)
[previously posted in subset F]:
v6: sink later in series, and rework commit message
[previously posted in subset D]:
v14: rearrange assignment, improve commit message
v13: new patch
---
scripts/qapi.py | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/scripts/qapi.py b/scripts/qapi.py
index ebcd207..6c991c3 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -62,8 +62,8 @@ returns_whitelist = [
# Whitelist of entities allowed to violate case conventions
case_whitelist = [
# From QMP:
- ':obj-CpuInfo-base', # CPU, visible through query-cpu
'ACPISlotType', # DIMM, visible through query-acpi-ospm-status
+ 'CpuInfo', # CPU and PC, visible through query-cpu
'CpuInfoMIPS', # PC, visible through query-cpu
'CpuInfoTricore', # PC, visible through query-cpu
'QapiErrorClass', # all members, visible through errors
@@ -1035,7 +1035,7 @@ class QAPISchemaMember(object):
def check_clash(self, info, seen):
cname = c_name(self.name)
- if cname.lower() != cname and self.owner not in case_whitelist:
+ if cname.lower() != cname and info['name'] not in case_whitelist:
raise QAPIExprError(info,
"%s should not use uppercase" %
self.describe())
if cname in seen:
@@ -1296,7 +1296,7 @@ class QAPISchema(object):
return name
def _def_enum_type(self, expr, info):
- name = expr['enum']
+ name = info['name'] = expr['enum']
data = expr['data']
prefix = expr.get('prefix')
self._def_entity(QAPISchemaEnumType(
@@ -1317,7 +1317,7 @@ class QAPISchema(object):
for (key, value) in data.iteritems()]
def _def_struct_type(self, expr, info):
- name = expr['struct']
+ name = info['name'] = expr['struct']
base = expr.get('base')
data = expr['data']
self._def_entity(QAPISchemaObjectType(name, info, base,
@@ -1336,7 +1336,7 @@ class QAPISchema(object):
return QAPISchemaObjectTypeVariant(case, typ)
def _def_union_type(self, expr, info):
- name = expr['union']
+ name = info['name'] = expr['union']
data = expr['data']
base = expr.get('base')
tag_name = expr.get('discriminator')
@@ -1362,7 +1362,7 @@ class QAPISchema(object):
variants)))
def _def_alternate_type(self, expr, info):
- name = expr['alternate']
+ name = info['name'] = expr['alternate']
data = expr['data']
variants = [self._make_variant(key, value)
for (key, value) in data.iteritems()]
@@ -1374,7 +1374,7 @@ class QAPISchema(object):
variants)))
def _def_command(self, expr, info):
- name = expr['command']
+ name = info['name'] = expr['command']
data = expr.get('data')
rets = expr.get('returns')
gen = expr.get('gen', True)
@@ -1389,7 +1389,7 @@ class QAPISchema(object):
success_response))
def _def_event(self, expr, info):
- name = expr['event']
+ name = info['name'] = expr['event']
data = expr.get('data')
if isinstance(data, OrderedDict):
data = self._make_implicit_object_type(
--
2.5.0
- Re: [Qemu-devel] [PATCH v4 01/10] qapi: Assert in places where variants are not handled, (continued)
[Qemu-devel] [PATCH v4 03/10] qapi: Make c_type() more OO-like, Eric Blake, 2016/03/05
[Qemu-devel] [PATCH v4 02/10] qapi: Fix command with named empty argument type, Eric Blake, 2016/03/05
[Qemu-devel] [PATCH v4 08/10] qapi: Allow anonymous base for flat union, Eric Blake, 2016/03/05
[Qemu-devel] [PATCH v4 10/10] qapi: Populate info['name'] for each entity,
Eric Blake <=
[Qemu-devel] [PATCH v4 09/10] qapi: Use anonymous bases in QMP flat unions, Eric Blake, 2016/03/05
[Qemu-devel] [PATCH v4 07/10] qapi: Don't special-case simple union wrappers, Eric Blake, 2016/03/05