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[PATCH v5 36/36] qapi/visit.py: add type hint annotations


From: John Snow
Subject: [PATCH v5 36/36] qapi/visit.py: add type hint annotations
Date: Mon, 5 Oct 2020 15:51:58 -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>
Tested-by: Cleber Rosa <crosa@redhat.com>
---
 scripts/qapi/mypy.ini |  5 ---
 scripts/qapi/visit.py | 73 +++++++++++++++++++++++++++++++++----------
 2 files changed, 56 insertions(+), 22 deletions(-)

diff --git a/scripts/qapi/mypy.ini b/scripts/qapi/mypy.ini
index 83f19813553..74fc6c82153 100644
--- a/scripts/qapi/mypy.ini
+++ b/scripts/qapi/mypy.ini
@@ -28,8 +28,3 @@ check_untyped_defs = False
 disallow_untyped_defs = False
 disallow_incomplete_defs = False
 check_untyped_defs = False
-
-[mypy-qapi.visit]
-disallow_untyped_defs = False
-disallow_incomplete_defs = False
-check_untyped_defs = False
diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py
index e54694e23db..14d4f0b261f 100644
--- a/scripts/qapi/visit.py
+++ b/scripts/qapi/visit.py
@@ -13,6 +13,8 @@
 See the COPYING file in the top-level directory.
 """
 
+from typing import List, Optional
+
 from .common import (
     c_enum_const,
     c_name,
@@ -22,10 +24,20 @@
     mcgen,
 )
 from .gen import QAPISchemaModularCVisitor, ifcontext
-from .schema import QAPISchemaEnumType, QAPISchemaObjectType
+from .schema import (
+    QAPISchema,
+    QAPISchemaEnumMember,
+    QAPISchemaEnumType,
+    QAPISchemaFeature,
+    QAPISchemaObjectType,
+    QAPISchemaObjectTypeMember,
+    QAPISchemaType,
+    QAPISchemaVariants,
+)
+from .source import QAPISourceInfo
 
 
-def gen_visit_decl(name, scalar=False):
+def gen_visit_decl(name: str, scalar: bool = False) -> str:
     c_type = c_name(name) + ' *'
     if not scalar:
         c_type += '*'
@@ -37,7 +49,7 @@ def gen_visit_decl(name, scalar=False):
                  c_name=c_name(name), c_type=c_type)
 
 
-def gen_visit_members_decl(name):
+def gen_visit_members_decl(name: str) -> str:
     return mcgen('''
 
 bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp);
@@ -45,7 +57,10 @@ def gen_visit_members_decl(name):
                  c_name=c_name(name))
 
 
-def gen_visit_object_members(name, base, members, variants):
+def gen_visit_object_members(name: str,
+                             base: Optional[QAPISchemaObjectType],
+                             members: List[QAPISchemaObjectTypeMember],
+                             variants: Optional[QAPISchemaVariants]) -> str:
     ret = mcgen('''
 
 bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
@@ -125,7 +140,7 @@ def gen_visit_object_members(name, base, members, variants):
     return ret
 
 
-def gen_visit_list(name, element_type):
+def gen_visit_list(name: str, element_type: QAPISchemaType) -> str:
     return mcgen('''
 
 bool visit_type_%(c_name)s(Visitor *v, const char *name,
@@ -159,7 +174,7 @@ def gen_visit_list(name, element_type):
                  c_name=c_name(name), c_elt_type=element_type.c_name())
 
 
-def gen_visit_enum(name):
+def gen_visit_enum(name: str) -> str:
     return mcgen('''
 
 bool visit_type_%(c_name)s(Visitor *v, const char *name,
@@ -174,7 +189,7 @@ def gen_visit_enum(name):
                  c_name=c_name(name))
 
 
-def gen_visit_alternate(name, variants):
+def gen_visit_alternate(name: str, variants: QAPISchemaVariants) -> str:
     ret = mcgen('''
 
 bool visit_type_%(c_name)s
@@ -250,7 +265,7 @@ def gen_visit_alternate(name, variants):
     return ret
 
 
-def gen_visit_object(name):
+def gen_visit_object(name: str) -> str:
     return mcgen('''
 
 bool visit_type_%(c_name)s
@@ -285,12 +300,12 @@ def gen_visit_object(name):
 
 class QAPISchemaGenVisitVisitor(QAPISchemaModularCVisitor):
 
-    def __init__(self, prefix):
+    def __init__(self, prefix: str):
         super().__init__(
             prefix, 'qapi-visit', ' * Schema-defined QAPI visitors',
             ' * Built-in QAPI visitors', __doc__)
 
-    def _begin_system_module(self, name):
+    def _begin_system_module(self, name: None) -> None:
         self._genc.preamble_add(mcgen('''
 #include "qemu/osdep.h"
 #include "qapi/error.h"
@@ -302,7 +317,7 @@ def _begin_system_module(self, name):
 
 '''))
 
-    def _begin_user_module(self, name):
+    def _begin_user_module(self, name: str) -> None:
         types = self._module_basename('qapi-types', name)
         visit = self._module_basename('qapi-visit', name)
         self._genc.preamble_add(mcgen('''
@@ -319,18 +334,34 @@ def _begin_user_module(self, name):
 ''',
                                       types=types))
 
-    def visit_enum_type(self, name, info, ifcond, features, members, prefix):
+    def visit_enum_type(self,
+                        name: str,
+                        info: QAPISourceInfo,
+                        ifcond: List[str],
+                        features: List[QAPISchemaFeature],
+                        members: List[QAPISchemaEnumMember],
+                        prefix: Optional[str]) -> None:
         with ifcontext(ifcond, self._genh, self._genc):
             self._genh.add(gen_visit_decl(name, scalar=True))
             self._genc.add(gen_visit_enum(name))
 
-    def visit_array_type(self, name, info, ifcond, element_type):
+    def visit_array_type(self,
+                         name: str,
+                         info: Optional[QAPISourceInfo],
+                         ifcond: List[str],
+                         element_type: QAPISchemaType) -> None:
         with ifcontext(ifcond, self._genh, self._genc):
             self._genh.add(gen_visit_decl(name))
             self._genc.add(gen_visit_list(name, element_type))
 
-    def visit_object_type(self, name, info, ifcond, features,
-                          base, members, variants):
+    def visit_object_type(self,
+                          name: str,
+                          info: Optional[QAPISourceInfo],
+                          ifcond: List[str],
+                          features: List[QAPISchemaFeature],
+                          base: Optional[QAPISchemaObjectType],
+                          members: List[QAPISchemaObjectTypeMember],
+                          variants: Optional[QAPISchemaVariants]) -> None:
         # Nothing to do for the special empty builtin
         if name == 'q_empty':
             return
@@ -345,13 +376,21 @@ def visit_object_type(self, name, info, ifcond, features,
                 self._genh.add(gen_visit_decl(name))
                 self._genc.add(gen_visit_object(name))
 
-    def visit_alternate_type(self, name, info, ifcond, features, variants):
+    def visit_alternate_type(self,
+                             name: str,
+                             info: QAPISourceInfo,
+                             ifcond: List[str],
+                             features: List[QAPISchemaFeature],
+                             variants: QAPISchemaVariants) -> None:
         with ifcontext(ifcond, self._genh, self._genc):
             self._genh.add(gen_visit_decl(name))
             self._genc.add(gen_visit_alternate(name, variants))
 
 
-def gen_visit(schema, output_dir, prefix, opt_builtins):
+def gen_visit(schema: QAPISchema,
+              output_dir: str,
+              prefix: str,
+              opt_builtins: bool) -> None:
     vis = QAPISchemaGenVisitVisitor(prefix)
     schema.visit(vis)
     vis.write(output_dir, opt_builtins)
-- 
2.26.2




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