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qapi: Replace List[str] with Sequence[str] for ifcond

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It does happen to be a list (as of now), but we can describe it in more
general terms with no loss in accuracy to allow tuples and other
constructs.

In the future, we can write "ifcond: Sequence[str] = ()" as a default
parameter, which we could not do safely with a Mutable type like a List.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210216021809.134886-2-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
John Snow
2021-02-15 21:17:51 -05:00
committed by Markus Armbruster
parent 91416a4254
commit 2184bca7b1
5 changed files with 21 additions and 20 deletions
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12
scripts/qapi/types.py
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@ -13,7 +13,7 @@ This work is licensed under the terms of the GNU GPL, version 2.
# See the COPYING file in the top-level directory.
"""
from typing import List, Optional
from typing import List, Optional, Sequence
from .common import (
c_enum_const,
@ -139,7 +139,7 @@ def gen_struct_members(members: List[QAPISchemaObjectTypeMember]) -> str:
return ret
def gen_object(name: str, ifcond: List[str],
def gen_object(name: str, ifcond: Sequence[str],
base: Optional[QAPISchemaObjectType],
members: List[QAPISchemaObjectTypeMember],
variants: Optional[QAPISchemaVariants]) -> str:
@ -307,7 +307,7 @@ class QAPISchemaGenTypeVisitor(QAPISchemaModularCVisitor):
def visit_enum_type(self,
name: str,
info: Optional[QAPISourceInfo],
ifcond: List[str],
ifcond: Sequence[str],
features: List[QAPISchemaFeature],
members: List[QAPISchemaEnumMember],
prefix: Optional[str]) -> None:
@ -318,7 +318,7 @@ class QAPISchemaGenTypeVisitor(QAPISchemaModularCVisitor):
def visit_array_type(self,
name: str,
info: Optional[QAPISourceInfo],
ifcond: List[str],
ifcond: Sequence[str],
element_type: QAPISchemaType) -> None:
with ifcontext(ifcond, self._genh, self._genc):
self._genh.preamble_add(gen_fwd_object_or_array(name))
@ -328,7 +328,7 @@ class QAPISchemaGenTypeVisitor(QAPISchemaModularCVisitor):
def visit_object_type(self,
name: str,
info: Optional[QAPISourceInfo],
ifcond: List[str],
ifcond: Sequence[str],
features: List[QAPISchemaFeature],
base: Optional[QAPISchemaObjectType],
members: List[QAPISchemaObjectTypeMember],
@ -351,7 +351,7 @@ class QAPISchemaGenTypeVisitor(QAPISchemaModularCVisitor):
def visit_alternate_type(self,
name: str,
info: Optional[QAPISourceInfo],
ifcond: List[str],
ifcond: Sequence[str],
features: List[QAPISchemaFeature],
variants: QAPISchemaVariants) -> None:
with ifcontext(ifcond, self._genh):