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qapi/common.py: Add indent manager

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Code style tools really dislike the use of global keywords, because it
generally involves re-binding the name at runtime which can have strange
effects depending on when and how that global name is referenced in
other modules.

Make a little indent level manager instead.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20201009161558.107041-12-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
John Snow 2020-10-09 12:15:33 -04:00 • committed by Markus Armbruster
parent 341f6afbac
commit cbe8f87f97
2 changed files with 40 additions and 24 deletions
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7
scripts/qapi/visit.py
View file

@ -18,9 +18,8 @@ from .common import (
c_name,
gen_endif,
gen_if,
indent,
mcgen,
pop_indent,
push_indent,
)
from .gen import QAPISchemaModularCVisitor, ifcontext
from .schema import QAPISchemaObjectType
@ -69,7 +68,7 @@ bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
if (visit_optional(v, "%(name)s", &obj->has_%(c_name)s)) {
''',
name=memb.name, c_name=c_name(memb.name))
push_indent()
indent.increase()
ret += mcgen('''
if (!visit_type_%(c_type)s(v, "%(name)s", &obj->%(c_name)s, errp)) {
return false;
@ -78,7 +77,7 @@ bool visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp)
c_type=memb.type.c_name(), name=memb.name,
c_name=c_name(memb.name))
if memb.optional:
pop_indent()
indent.decrease()
ret += mcgen('''
}
''')