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From: Markus Armbruster <armbru@redhat.com>
To: qemu-devel@nongnu.org
Cc: jsnow@redhat.com, peter.maydell@linaro.org, michael.roth@amd.com
Subject: [PATCH v5 10/25] qapi/schema: add type narrowing to lookup_type()
Date: Fri, 15 Mar 2024 16:22:46 +0100	[thread overview]
Message-ID: <20240315152301.3621858-11-armbru@redhat.com> (raw)
In-Reply-To: <20240315152301.3621858-1-armbru@redhat.com>

From: John Snow <jsnow@redhat.com>

This function is a bit hard to type as-is; mypy needs some assertions to
assist with the type narrowing.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 scripts/qapi/schema.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py
index e44802369d..1034825415 100644
--- a/scripts/qapi/schema.py
+++ b/scripts/qapi/schema.py
@@ -989,7 +989,9 @@ def lookup_entity(self, name, typ=None):
         return ent
 
     def lookup_type(self, name):
-        return self.lookup_entity(name, QAPISchemaType)
+        typ = self.lookup_entity(name, QAPISchemaType)
+        assert typ is None or isinstance(typ, QAPISchemaType)
+        return typ
 
     def resolve_type(self, name, info, what):
         typ = self.lookup_type(name)
-- 
2.44.0



  parent reply	other threads:[~2024-03-15 15:23 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-15 15:22 [PATCH v5 00/25] qapi: statically type schema.py Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 01/25] qapi/parser: fix typo - self.returns.info => self.errors.info Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 02/25] qapi/parser: shush up pylint Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 03/25] qapi: sort pylint suppressions Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 04/25] qapi/schema: add " Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 05/25] qapi: create QAPISchemaDefinition Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 06/25] qapi/schema: declare type for QAPISchemaObjectTypeMember.type Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 07/25] qapi/schema: declare type for QAPISchemaArrayType.element_type Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 08/25] qapi/schema: make c_type() and json_type() abstract methods Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 09/25] qapi/schema: adjust type narrowing for mypy's benefit Markus Armbruster
2024-03-15 15:22 ` Markus Armbruster [this message]
2024-03-15 15:22 ` [PATCH v5 11/25] qapi/schema: assert resolve_type has 'info' and 'what' args on error Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 12/25] qapi: Assert built-in types exist Markus Armbruster
2024-03-19 15:24   ` John Snow
2024-03-15 15:22 ` [PATCH v5 13/25] qapi/schema: fix QAPISchemaArrayType.check's call to resolve_type Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 14/25] qapi/schema: assert info is present when necessary Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 15/25] qapi/schema: add _check_complete flag Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 16/25] qapi/schema: Don't initialize "members" with `None` Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 17/25] qapi/schema: fix typing for QAPISchemaVariants.tag_member Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 18/25] qapi/schema: assert inner type of QAPISchemaVariants in check_clash() Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 19/25] qapi/parser: demote QAPIExpression to Dict[str, Any] Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 20/25] qapi/parser.py: assert member.info is present in connect_member Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 21/25] qapi/schema: add type hints Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 22/25] qapi/schema: turn on mypy strictness Markus Armbruster
2024-03-15 15:22 ` [PATCH v5 23/25] qapi/schema: remove unnecessary asserts Markus Armbruster
2024-03-15 15:23 ` [PATCH v5 24/25] qapi: Tighten check whether implicit object type already exists Markus Armbruster
2024-03-15 16:39   ` Philippe Mathieu-Daudé
2024-03-19 15:30   ` John Snow
2024-03-19 16:02     ` Markus Armbruster
2024-03-19 16:06       ` John Snow
2024-03-15 15:23 ` [PATCH v5 25/25] qapi: Dumb down QAPISchema.lookup_entity() Markus Armbruster
2024-03-18  9:11   ` Markus Armbruster
2024-03-19 15:32   ` John Snow
2024-03-19 18:23 ` [PATCH v5 00/25] qapi: statically type schema.py Markus Armbruster

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