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[PATCH v2 08/16] qapi/expr.py: add type hint annotations
From: |
John Snow |
Subject: |
[PATCH v2 08/16] qapi/expr.py: add type hint annotations |
Date: |
Mon, 26 Oct 2020 17:36:29 -0400 |
Annotations do not change runtime behavior.
This commit *only* adds annotations.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
---
scripts/qapi/expr.py | 71 ++++++++++++++++++++++++++++---------------
scripts/qapi/mypy.ini | 5 ---
2 files changed, 46 insertions(+), 30 deletions(-)
diff --git a/scripts/qapi/expr.py b/scripts/qapi/expr.py
index b8720b723377..b393ccd30e92 100644
--- a/scripts/qapi/expr.py
+++ b/scripts/qapi/expr.py
@@ -15,7 +15,14 @@
# See the COPYING file in the top-level directory.
import re
-from typing import MutableMapping, Optional, cast
+from typing import (
+ Iterable,
+ List,
+ MutableMapping,
+ Optional,
+ Union,
+ cast,
+)
from .common import c_name
from .error import QAPISemError
@@ -23,9 +30,10 @@
from .source import QAPISourceInfo
-# Expressions in their raw form are JSON-like structures with arbitrary forms.
-# Minimally, their top-level form must be a mapping of strings to values.
-Expression = MutableMapping[str, object]
+# Arbitrary form for a JSON-like object.
+_JSObject = MutableMapping[str, object]
+# Expressions in their raw form are (just) JSON-like objects.
+Expression = _JSObject
# Names must be letters, numbers, -, and _. They must start with letter,
@@ -35,14 +43,19 @@
'[a-zA-Z][a-zA-Z0-9_-]*$')
-def check_name_is_str(name, info, source):
+def check_name_is_str(name: object,
+ info: QAPISourceInfo,
+ source: str) -> None:
if not isinstance(name, str):
raise QAPISemError(info, "%s requires a string name" % source)
-def check_name_str(name, info, source,
- allow_optional=False, enum_member=False,
- permit_upper=False):
+def check_name_str(name: str,
+ info: QAPISourceInfo,
+ source: str,
+ allow_optional: bool = False,
+ enum_member: bool = False,
+ permit_upper: bool = False) -> None:
membername = name
if allow_optional and name.startswith('*'):
@@ -62,16 +75,20 @@ def check_name_str(name, info, source,
assert not membername.startswith('*')
-def check_defn_name_str(name, info, meta):
+def check_defn_name_str(name: str, info: QAPISourceInfo, meta: str) -> None:
check_name_str(name, info, meta, permit_upper=True)
if name.endswith('Kind') or name.endswith('List'):
raise QAPISemError(
info, "%s name should not end in '%s'" % (meta, name[-4:]))
-def check_keys(value, info, source, required, optional):
+def check_keys(value: _JSObject,
+ info: QAPISourceInfo,
+ source: str,
+ required: List[str],
+ optional: List[str]) -> None:
- def pprint(elems):
+ def pprint(elems: Iterable[str]) -> str:
return ', '.join("'" + e + "'" for e in sorted(elems))
missing = set(required) - set(value)
@@ -91,7 +108,7 @@ def pprint(elems):
pprint(unknown), pprint(allowed)))
-def check_flags(expr, info):
+def check_flags(expr: Expression, info: QAPISourceInfo) -> None:
for key in ['gen', 'success-response']:
if key in expr and expr[key] is not False:
raise QAPISemError(
@@ -109,9 +126,9 @@ def check_flags(expr, info):
"are incompatible")
-def check_if(expr, info, source):
+def check_if(expr: _JSObject, info: QAPISourceInfo, source: str) -> None:
- def check_if_str(ifcond):
+ def check_if_str(ifcond: object) -> None:
if not isinstance(ifcond, str):
raise QAPISemError(
info,
@@ -137,7 +154,7 @@ def check_if_str(ifcond):
expr['if'] = [ifcond]
-def normalize_members(members):
+def normalize_members(members: object) -> None:
if isinstance(members, dict):
for key, arg in members.items():
if isinstance(arg, dict):
@@ -145,8 +162,11 @@ def normalize_members(members):
members[key] = {'type': arg}
-def check_type(value, info, source,
- allow_array=False, allow_dict=False):
+def check_type(value: Optional[object],
+ info: QAPISourceInfo,
+ source: str,
+ allow_array: bool = False,
+ allow_dict: Union[bool, str] = False) -> None:
if value is None:
return
@@ -190,7 +210,8 @@ def check_type(value, info, source,
check_type(arg['type'], info, key_source, allow_array=True)
-def check_features(features, info):
+def check_features(features: Optional[object],
+ info: QAPISourceInfo) -> None:
if features is None:
return
if not isinstance(features, list):
@@ -207,7 +228,7 @@ def check_features(features, info):
check_if(f, info, source)
-def check_enum(expr, info):
+def check_enum(expr: Expression, info: QAPISourceInfo) -> None:
name = expr['enum']
members = expr['data']
prefix = expr.get('prefix')
@@ -231,7 +252,7 @@ def check_enum(expr, info):
check_if(member, info, source)
-def check_struct(expr, info):
+def check_struct(expr: Expression, info: QAPISourceInfo) -> None:
name = cast(str, expr['struct']) # Asserted in check_exprs
members = expr['data']
@@ -239,7 +260,7 @@ def check_struct(expr, info):
check_type(expr.get('base'), info, "'base'")
-def check_union(expr, info):
+def check_union(expr: Expression, info: QAPISourceInfo) -> None:
name = cast(str, expr['union']) # Asserted in check_exprs
base = expr.get('base')
discriminator = expr.get('discriminator')
@@ -265,7 +286,7 @@ def check_union(expr, info):
check_type(value['type'], info, source, allow_array=not base)
-def check_alternate(expr, info):
+def check_alternate(expr: Expression, info: QAPISourceInfo) -> None:
members = expr['data']
if not members:
@@ -282,7 +303,7 @@ def check_alternate(expr, info):
check_type(value['type'], info, source)
-def check_command(expr, info):
+def check_command(expr: Expression, info: QAPISourceInfo) -> None:
args = expr.get('data')
rets = expr.get('returns')
boxed = expr.get('boxed', False)
@@ -293,7 +314,7 @@ def check_command(expr, info):
check_type(rets, info, "'returns'", allow_array=True)
-def check_event(expr, info):
+def check_event(expr: Expression, info: QAPISourceInfo) -> None:
args = expr.get('data')
boxed = expr.get('boxed', False)
@@ -302,7 +323,7 @@ def check_event(expr, info):
check_type(args, info, "'data'", allow_dict=not boxed)
-def check_exprs(exprs):
+def check_exprs(exprs: List[_JSObject]) -> List[_JSObject]:
for expr_elem in exprs:
# Expression
assert isinstance(expr_elem['expr'], dict)
diff --git a/scripts/qapi/mypy.ini b/scripts/qapi/mypy.ini
index c0f2a58306de..df9b05e4ab36 100644
--- a/scripts/qapi/mypy.ini
+++ b/scripts/qapi/mypy.ini
@@ -9,11 +9,6 @@ disallow_untyped_defs = False
disallow_incomplete_defs = False
check_untyped_defs = False
-[mypy-qapi.expr]
-disallow_untyped_defs = False
-disallow_incomplete_defs = False
-check_untyped_defs = False
-
[mypy-qapi.parser]
disallow_untyped_defs = False
disallow_incomplete_defs = False
--
2.26.2
- [PATCH v2 00/16] qapi: static typing conversion, pt3, John Snow, 2020/10/26
- [PATCH v2 02/16] qapi/expr.py: Check for dict instead of OrderedDict, John Snow, 2020/10/26
- [PATCH v2 03/16] qapi/expr.py: constrain incoming expression types, John Snow, 2020/10/26
- [PATCH v2 04/16] qapi/expr.py: Add assertion for union type 'check_dict', John Snow, 2020/10/26
- [PATCH v2 05/16] qapi/expr.py: move string check upwards in check_type, John Snow, 2020/10/26
- [PATCH v2 06/16] qapi/expr.py: Check type of 'data' member, John Snow, 2020/10/26
- [PATCH v2 01/16] qapi/expr.py: Remove 'info' argument from nested check_if_str, John Snow, 2020/10/26
- [PATCH v2 07/16] qapi/expr.py: Add casts in a few select cases, John Snow, 2020/10/26
- [PATCH v2 08/16] qapi/expr.py: add type hint annotations,
John Snow <=
- [PATCH v2 09/16] qapi/expr.py: rewrite check_if, John Snow, 2020/10/26
- [PATCH v2 15/16] qapi/expr.py: move related checks inside check_xxx functions, John Snow, 2020/10/26
- [PATCH v2 10/16] qapi/expr.py: Remove single-letter variable, John Snow, 2020/10/26
- [PATCH v2 11/16] qapi/expr.py: enable pylint checks, John Snow, 2020/10/26
- [PATCH v2 12/16] qapi/expr.py: Add docstrings, John Snow, 2020/10/26
- [PATCH v2 13/16] qapi/expr.py: Modify check_keys to accept any Iterable, John Snow, 2020/10/26
- [PATCH v2 14/16] qapi/expr.py: Use tuples instead of lists for static data, John Snow, 2020/10/26
- [PATCH v2 16/16] qapi/expr.py: Use an expression checker dispatch table, John Snow, 2020/10/26