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-rw-r--r--include/qapi/util.h4
-rw-r--r--scripts/qapi/gen.py8
-rw-r--r--scripts/qapi/schema.py3
3 files changed, 15 insertions, 0 deletions
diff --git a/include/qapi/util.h b/include/qapi/util.h
index 257c600f99..7a8d5c7d72 100644
--- a/include/qapi/util.h
+++ b/include/qapi/util.h
@@ -11,6 +11,10 @@
#ifndef QAPI_UTIL_H
#define QAPI_UTIL_H
+typedef enum {
+ QAPI_DEPRECATED,
+} QapiSpecialFeature;
+
/* QEnumLookup flags */
#define QAPI_ENUM_DEPRECATED 1
diff --git a/scripts/qapi/gen.py b/scripts/qapi/gen.py
index 2ec1e7b3b6..995a97d2b8 100644
--- a/scripts/qapi/gen.py
+++ b/scripts/qapi/gen.py
@@ -18,6 +18,7 @@ from typing import (
Dict,
Iterator,
Optional,
+ Sequence,
Tuple,
)
@@ -29,6 +30,7 @@ from .common import (
mcgen,
)
from .schema import (
+ QAPISchemaFeature,
QAPISchemaIfCond,
QAPISchemaModule,
QAPISchemaObjectType,
@@ -37,6 +39,12 @@ from .schema import (
from .source import QAPISourceInfo
+def gen_special_features(features: Sequence[QAPISchemaFeature]) -> str:
+ special_features = [f"1u << QAPI_{feat.name.upper()}"
+ for feat in features if feat.is_special()]
+ return ' | '.join(special_features) or '0'
+
+
class QAPIGen:
def __init__(self, fname: str):
self.fname = fname
diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py
index 6d5f46509a..55f82d7389 100644
--- a/scripts/qapi/schema.py
+++ b/scripts/qapi/schema.py
@@ -725,6 +725,9 @@ class QAPISchemaEnumMember(QAPISchemaMember):
class QAPISchemaFeature(QAPISchemaMember):
role = 'feature'
+ def is_special(self):
+ return self.name in ('deprecated')
+
class QAPISchemaObjectTypeMember(QAPISchemaMember):
def __init__(self, name, info, typ, optional, ifcond=None, features=None):