From 49823c4b4304a3e4aa5d67e089946b12d6a52d64 Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Mon, 12 Oct 2015 22:22:27 -0600 Subject: [PATCH] qapi: Don't use info as witness of implicit object type A future patch will enable error reporting from the various QAPISchema*.check() methods. But to report an error related to an implicit type, we'll need to associate a location with the type (the same location as the top-level entity that is causing the creation of the implicit type), and once we do that, keying off of whether foo.info exists is no longer a viable way to determine if foo is an implicit type. Instead, add an is_implicit() method to QAPISchemaEntity, and use it. It can be overridden later for ObjectType and EnumType, when implicit instances of those classes gain info. Signed-off-by: Eric Blake Message-Id: <1444710158-8723-8-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster --- scripts/qapi-types.py | 3 ++- scripts/qapi-visit.py | 3 ++- scripts/qapi.py | 14 ++++++++++---- 3 files changed, 14 insertions(+), 6 deletions(-) diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py index 2a29c6e106..4fe618ef3c 100644 --- a/scripts/qapi-types.py +++ b/scripts/qapi-types.py @@ -235,7 +235,8 @@ class QAPISchemaGenTypeVisitor(QAPISchemaVisitor): def visit_needed(self, entity): # Visit everything except implicit objects - return not isinstance(entity, QAPISchemaObjectType) or entity.info + return not (entity.is_implicit() and + isinstance(entity, QAPISchemaObjectType)) def _gen_type_cleanup(self, name): self.decl += gen_type_cleanup_decl(name) diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py index b7a647076d..d0759d739a 100644 --- a/scripts/qapi-visit.py +++ b/scripts/qapi-visit.py @@ -337,7 +337,8 @@ class QAPISchemaGenVisitVisitor(QAPISchemaVisitor): def visit_needed(self, entity): # Visit everything except implicit objects - return not isinstance(entity, QAPISchemaObjectType) or entity.info + return not (entity.is_implicit() and + isinstance(entity, QAPISchemaObjectType)) def visit_enum_type(self, name, info, values, prefix): self.decl += gen_visit_decl(name, scalar=True) diff --git a/scripts/qapi.py b/scripts/qapi.py index 68f97a14bb..d7cf0f3714 100644 --- a/scripts/qapi.py +++ b/scripts/qapi.py @@ -798,6 +798,9 @@ class QAPISchemaEntity(object): def check(self, schema): pass + def is_implicit(self): + return not self.info + def visit(self, visitor): pass @@ -971,11 +974,11 @@ class QAPISchemaObjectType(QAPISchemaType): self.members = members def c_name(self): - assert self.info + assert not self.is_implicit() return QAPISchemaType.c_name(self) def c_type(self, is_param=False): - assert self.info + assert not self.is_implicit() return QAPISchemaType.c_type(self) def json_type(self): @@ -1043,7 +1046,8 @@ class QAPISchemaObjectTypeVariant(QAPISchemaObjectTypeMember): # This function exists to support ugly simple union special cases # TODO get rid of them, and drop the function def simple_union_type(self): - if isinstance(self.type, QAPISchemaObjectType) and not self.type.info: + if (self.type.is_implicit() and + isinstance(self.type, QAPISchemaObjectType)): assert len(self.type.members) == 1 assert not self.type.variants return self.type.members[0].type @@ -1162,11 +1166,13 @@ class QAPISchema(object): self._def_entity(self.the_empty_object_type) def _make_implicit_enum_type(self, name, values): - name = name + 'Kind' + name = name + 'Kind' # Use namespace reserved by add_name() self._def_entity(QAPISchemaEnumType(name, None, values, None)) return name def _make_array_type(self, element_type): + # TODO fooList namespace is not reserved; user can create collisions, + # or abuse our type system with ['fooList'] for 2D array name = element_type + 'List' if not self.lookup_type(name): self._def_entity(QAPISchemaArrayType(name, None, element_type)) -- GitLab