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-rw-r--r--scripts/qapi/common.py66
-rwxr-xr-xscripts/qapi/doc.py3
-rw-r--r--scripts/qapi/introspect.py6
-rw-r--r--scripts/qapi/types.py3
-rw-r--r--scripts/qapi/visit.py3
5 files changed, 67 insertions, 14 deletions
diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py
index f07869ec73..9e4b6c00b5 100644
--- a/scripts/qapi/common.py
+++ b/scripts/qapi/common.py
@@ -886,12 +886,26 @@ def check_enum(expr, info):
def check_struct(expr, info):
name = expr['struct']
members = expr['data']
+ features = expr.get('features')
check_type(info, "'data' for struct '%s'" % name, members,
allow_dict=True, allow_optional=True)
check_type(info, "'base' for struct '%s'" % name, expr.get('base'),
allow_metas=['struct'])
+ if features:
+ if not isinstance(features, list):
+ raise QAPISemError(info,
+ "Struct '%s' requires an array for 'features'" %
+ name)
+ for f in features:
+ assert isinstance(f, dict)
+ check_known_keys(info, "feature of struct %s" % name, f,
+ ['name'], ['if'])
+
+ check_if(f, info)
+ check_name(info, "Feature of struct %s" % name, f['name'])
+
def check_known_keys(info, source, keys, required, optional):
@@ -948,6 +962,12 @@ def normalize_members(members):
members[key] = {'type': arg}
+def normalize_features(features):
+ if isinstance(features, list):
+ features[:] = [f if isinstance(f, dict) else {'name': f}
+ for f in features]
+
+
def check_exprs(exprs):
global all_names
@@ -986,8 +1006,10 @@ def check_exprs(exprs):
normalize_members(expr['data'])
elif 'struct' in expr:
meta = 'struct'
- check_keys(expr_elem, 'struct', ['data'], ['base', 'if'])
+ check_keys(expr_elem, 'struct', ['data'],
+ ['base', 'if', 'features'])
normalize_members(expr['data'])
+ normalize_features(expr.get('features'))
struct_types[expr[meta]] = expr
elif 'command' in expr:
meta = 'command'
@@ -1126,10 +1148,12 @@ class QAPISchemaVisitor(object):
def visit_array_type(self, name, info, ifcond, element_type):
pass
- def visit_object_type(self, name, info, ifcond, base, members, variants):
+ def visit_object_type(self, name, info, ifcond, base, members, variants,
+ features):
pass
- def visit_object_type_flat(self, name, info, ifcond, members, variants):
+ def visit_object_type_flat(self, name, info, ifcond, members, variants,
+ features):
pass
def visit_alternate_type(self, name, info, ifcond, variants):
@@ -1290,7 +1314,7 @@ class QAPISchemaArrayType(QAPISchemaType):
class QAPISchemaObjectType(QAPISchemaType):
def __init__(self, name, info, doc, ifcond,
- base, local_members, variants):
+ base, local_members, variants, features):
# struct has local_members, optional base, and no variants
# flat union has base, variants, and no local_members
# simple union has local_members, variants, and no base
@@ -1302,11 +1326,15 @@ class QAPISchemaObjectType(QAPISchemaType):
if variants is not None:
assert isinstance(variants, QAPISchemaObjectTypeVariants)
variants.set_owner(name)
+ for f in features:
+ assert isinstance(f, QAPISchemaFeature)
+ f.set_owner(name)
self._base_name = base
self.base = None
self.local_members = local_members
self.variants = variants
self.members = None
+ self.features = features
def check(self, schema):
QAPISchemaType.check(self, schema)
@@ -1332,6 +1360,12 @@ class QAPISchemaObjectType(QAPISchemaType):
self.variants.check(schema, seen)
assert self.variants.tag_member in self.members
self.variants.check_clash(self.info, seen)
+
+ # Features are in a name space separate from members
+ seen = {}
+ for f in self.features:
+ f.check_clash(self.info, seen)
+
if self.doc:
self.doc.check()
@@ -1368,12 +1402,15 @@ class QAPISchemaObjectType(QAPISchemaType):
def visit(self, visitor):
visitor.visit_object_type(self.name, self.info, self.ifcond,
- self.base, self.local_members, self.variants)
+ self.base, self.local_members, self.variants,
+ self.features)
visitor.visit_object_type_flat(self.name, self.info, self.ifcond,
- self.members, self.variants)
+ self.members, self.variants,
+ self.features)
class QAPISchemaMember(object):
+ """ Represents object members, enum members and features """
role = 'member'
def __init__(self, name, ifcond=None):
@@ -1419,6 +1456,10 @@ class QAPISchemaMember(object):
return "'%s' %s" % (self.name, self._pretty_owner())
+class QAPISchemaFeature(QAPISchemaMember):
+ role = 'feature'
+
+
class QAPISchemaObjectTypeMember(QAPISchemaMember):
def __init__(self, name, typ, optional, ifcond=None):
QAPISchemaMember.__init__(self, name, ifcond)
@@ -1675,7 +1716,7 @@ class QAPISchema(object):
('null', 'null', 'QNull' + pointer_suffix)]:
self._def_builtin_type(*t)
self.the_empty_object_type = QAPISchemaObjectType(
- 'q_empty', None, None, None, None, [], None)
+ 'q_empty', None, None, None, None, [], None, [])
self._def_entity(self.the_empty_object_type)
qtypes = ['none', 'qnull', 'qnum', 'qstring', 'qdict', 'qlist',
@@ -1685,6 +1726,9 @@ class QAPISchema(object):
self._def_entity(QAPISchemaEnumType('QType', None, None, None,
qtype_values, 'QTYPE'))
+ def _make_features(self, features):
+ return [QAPISchemaFeature(f['name'], f.get('if')) for f in features]
+
def _make_enum_members(self, values):
return [QAPISchemaMember(v['name'], v.get('if')) for v in values]
@@ -1721,7 +1765,7 @@ class QAPISchema(object):
assert ifcond == typ._ifcond # pylint: disable=protected-access
else:
self._def_entity(QAPISchemaObjectType(name, info, doc, ifcond,
- None, members, None))
+ None, members, None, []))
return name
def _def_enum_type(self, expr, info, doc):
@@ -1752,9 +1796,11 @@ class QAPISchema(object):
base = expr.get('base')
data = expr['data']
ifcond = expr.get('if')
+ features = expr.get('features', [])
self._def_entity(QAPISchemaObjectType(name, info, doc, ifcond, base,
self._make_members(data, info),
- None))
+ None,
+ self._make_features(features)))
def _make_variant(self, case, typ, ifcond):
return QAPISchemaObjectTypeVariant(case, typ, ifcond)
@@ -1795,7 +1841,7 @@ class QAPISchema(object):
QAPISchemaObjectType(name, info, doc, ifcond, base, members,
QAPISchemaObjectTypeVariants(tag_name,
tag_member,
- variants)))
+ variants), []))
def _def_alternate_type(self, expr, info, doc):
name = expr['alternate']
diff --git a/scripts/qapi/doc.py b/scripts/qapi/doc.py
index 5c8c136899..433e9fcbfb 100755
--- a/scripts/qapi/doc.py
+++ b/scripts/qapi/doc.py
@@ -220,7 +220,8 @@ class QAPISchemaGenDocVisitor(qapi.common.QAPISchemaVisitor):
body=texi_entity(doc, 'Values', ifcond,
member_func=texi_enum_value)))
- def visit_object_type(self, name, info, ifcond, base, members, variants):
+ def visit_object_type(self, name, info, ifcond, base, members, variants,
+ features):
doc = self.cur_doc
if base and base.is_implicit():
base = None
diff --git a/scripts/qapi/introspect.py b/scripts/qapi/introspect.py
index f7f2ca07e4..f62cf0a2e1 100644
--- a/scripts/qapi/introspect.py
+++ b/scripts/qapi/introspect.py
@@ -188,11 +188,15 @@ const QLitObject %(c_name)s = %(c_string)s;
self._gen_qlit('[' + element + ']', 'array', {'element-type': element},
ifcond)
- def visit_object_type_flat(self, name, info, ifcond, members, variants):
+ def visit_object_type_flat(self, name, info, ifcond, members, variants,
+ features):
obj = {'members': [self._gen_member(m) for m in members]}
if variants:
obj.update(self._gen_variants(variants.tag_member.name,
variants.variants))
+ if features:
+ obj['features'] = [(f.name, {'if': f.ifcond}) for f in features]
+
self._gen_qlit(name, 'object', obj, ifcond)
def visit_alternate_type(self, name, info, ifcond, variants):
diff --git a/scripts/qapi/types.py b/scripts/qapi/types.py
index 2bd6fcd44f..3edd9374aa 100644
--- a/scripts/qapi/types.py
+++ b/scripts/qapi/types.py
@@ -227,7 +227,8 @@ class QAPISchemaGenTypeVisitor(QAPISchemaModularCVisitor):
self._genh.add(gen_array(name, element_type))
self._gen_type_cleanup(name)
- def visit_object_type(self, name, info, ifcond, base, members, variants):
+ def visit_object_type(self, name, info, ifcond, base, members, variants,
+ features):
# Nothing to do for the special empty builtin
if name == 'q_empty':
return
diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py
index fd356151d2..484ebb66ad 100644
--- a/scripts/qapi/visit.py
+++ b/scripts/qapi/visit.py
@@ -324,7 +324,8 @@ class QAPISchemaGenVisitVisitor(QAPISchemaModularCVisitor):
self._genh.add(gen_visit_decl(name))
self._genc.add(gen_visit_list(name, element_type))
- def visit_object_type(self, name, info, ifcond, base, members, variants):
+ def visit_object_type(self, name, info, ifcond, base, members, variants,
+ features):
# Nothing to do for the special empty builtin
if name == 'q_empty':
return