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Tue, 15 Sep 2020 22:41:23 +0000 (UTC) Received: from scv.redhat.com (ovpn-119-140.rdu2.redhat.com [10.10.119.140]) by smtp.corp.redhat.com (Postfix) with ESMTP id 71AC060BE5; Tue, 15 Sep 2020 22:41:22 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org, Markus Armbruster Subject: [PATCH 33/37] qapi/introspect.py: add notational type hints Date: Tue, 15 Sep 2020 18:40:23 -0400 Message-Id: <20200915224027.2529813-34-jsnow@redhat.com> In-Reply-To: <20200915224027.2529813-1-jsnow@redhat.com> References: <20200915224027.2529813-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jsnow@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/15 02:10:32 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -50 X-Spam_score: -5.1 X-Spam_bar: ----- X-Spam_report: (-5.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.999, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: John Snow , Peter Maydell , =?utf-8?q?Alex_Benn=C3=A9e?= , Eduardo Habkost , Cleber Rosa Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add a tiny hint into schema.py to allow introspect.py to type check, too. Signed-off-by: John Snow --- scripts/qapi/introspect.py | 123 ++++++++++++++++++++++++++----------- scripts/qapi/mypy.ini | 5 -- scripts/qapi/schema.py | 2 +- 3 files changed, 87 insertions(+), 43 deletions(-) diff --git a/scripts/qapi/introspect.py b/scripts/qapi/introspect.py index e0f5007ab7..4e1ea3a00c 100644 --- a/scripts/qapi/introspect.py +++ b/scripts/qapi/introspect.py @@ -10,7 +10,16 @@ See the COPYING file in the top-level directory. """ -from typing import (NamedTuple, List, Optional, Sequence) +from typing import ( + Any, + Dict, + Generic, + List, + NamedTuple, + Optional, + Sequence, + TypeVar, +) from .common import ( c_name, @@ -19,8 +28,23 @@ mcgen, ) from .gen import QAPISchemaMonolithicCVisitor -from .schema import (QAPISchemaArrayType, QAPISchemaBuiltinType, - QAPISchemaFeature, QAPISchemaType) +from .schema import ( + QAPISchema, + QAPISchemaArrayType, + QAPISchemaBuiltinType, + QAPISchemaEntity, + QAPISchemaEnumMember, + QAPISchemaFeature, + QAPISchemaObjectType, + QAPISchemaObjectTypeMember, + QAPISchemaType, + QAPISchemaVariant, + QAPISchemaVariants, +) +from .source import QAPISourceInfo + + +_NodeType = TypeVar('_NodeType') class Extra(NamedTuple): @@ -31,23 +55,24 @@ class Extra(NamedTuple): ifcond: Sequence[str] = tuple() -class Node: +class Node(Generic[_NodeType]): """ Node generally contains a SchemaInfo-like type (as a dict), But it also used to wrap comments/ifconds around leaf value types. """ # Remove after 3.7 adds @dataclass: # pylint: disable=too-few-public-methods - def __init__(self, data, ifcond: List[str], + def __init__(self, data: _NodeType, ifcond: List[str], extra: Optional[Extra] = None): self.data = data comment = extra.comment if extra else None self.extra = Extra(comment, ifcond) -def _tree_to_qlit(obj, level=0, suppress_first_indent=False): +def _tree_to_qlit(obj: Any, level: int = 0, + suppress_first_indent: bool = False) -> str: - def indent(level): + def indent(level: int) -> str: return level * 4 * ' ' if isinstance(obj, Node): @@ -94,21 +119,20 @@ def indent(level): return ret -def to_c_string(string): +def to_c_string(string: str) -> str: return '"' + string.replace('\\', r'\\').replace('"', r'\"') + '"' class QAPISchemaGenIntrospectVisitor(QAPISchemaMonolithicCVisitor): - - def __init__(self, prefix, unmask): + def __init__(self, prefix: str, unmask: bool): super().__init__( prefix, 'qapi-introspect', ' * QAPI/QMP schema introspection', __doc__) self._unmask = unmask - self._schema = None - self._trees = [] - self._used_types = [] - self._name_map = {} + self._schema: Optional[QAPISchema] = None + self._trees: List[Node[Dict[str, Any]]] = [] + self._used_types: List[QAPISchemaType] = [] + self._name_map: Dict[str, str] = {} self._genc.add(mcgen(''' #include "qemu/osdep.h" #include "%(prefix)sqapi-introspect.h" @@ -116,10 +140,10 @@ def __init__(self, prefix, unmask): ''', prefix=prefix)) - def visit_begin(self, schema): + def visit_begin(self, schema: QAPISchema) -> None: self._schema = schema - def visit_end(self): + def visit_end(self) -> None: # visit the types that are actually used for typ in self._used_types: typ.visit(self) @@ -141,18 +165,18 @@ def visit_end(self): self._used_types = [] self._name_map = {} - def visit_needed(self, entity): + def visit_needed(self, entity: QAPISchemaEntity) -> bool: # Ignore types on first pass; visit_end() will pick up used types return not isinstance(entity, QAPISchemaType) - def _name(self, name): + def _name(self, name: str) -> str: if self._unmask: return name if name not in self._name_map: self._name_map[name] = '%d' % len(self._name_map) return self._name_map[name] - def _use_type(self, typ): + def _use_type(self, typ: QAPISchemaType) -> str: # Map the various integer types to plain int if typ.json_type() == 'int': typ = self._schema.lookup_type('int') @@ -172,10 +196,13 @@ def _use_type(self, typ): return self._name(typ.name) @classmethod - def _gen_features(cls, features: List[QAPISchemaFeature]): + def _gen_features(cls, + features: List[QAPISchemaFeature]) -> List[Node[str]]: return [Node(f.name, f.ifcond) for f in features] - def _gen_tree(self, name, mtype, obj, ifcond, features): + def _gen_tree(self, name: str, mtype: str, obj: Dict[str, Any], + ifcond: List[str], + features: Optional[List[QAPISchemaFeature]]) -> None: extra = None if mtype not in ('command', 'event', 'builtin', 'array'): if not self._unmask: @@ -189,7 +216,8 @@ def _gen_tree(self, name, mtype, obj, ifcond, features): obj['features'] = self._gen_features(features) self._trees.append(Node(obj, ifcond, extra)) - def _gen_member(self, member): + def _gen_member(self, member: QAPISchemaObjectTypeMember, + ) -> Node[Dict[str, Any]]: obj = {'name': member.name, 'type': self._use_type(member.type)} if member.optional: obj['default'] = None @@ -197,29 +225,39 @@ def _gen_member(self, member): obj['features'] = self._gen_features(member.features) return Node(obj, member.ifcond) - def _gen_variants(self, tag_name, variants): + def _gen_variants(self, tag_name: str, + variants: List[QAPISchemaVariant]) -> Dict[str, Any]: return {'tag': tag_name, 'variants': [self._gen_variant(v) for v in variants]} - def _gen_variant(self, variant): + def _gen_variant(self, variant: QAPISchemaVariant) -> Node[Dict[str, Any]]: obj = {'case': variant.name, 'type': self._use_type(variant.type)} return Node(obj, variant.ifcond) - def visit_builtin_type(self, name, info, json_type): + def visit_builtin_type(self, name: str, info: Optional[QAPISourceInfo], + json_type: str) -> None: self._gen_tree(name, 'builtin', {'json-type': json_type}, [], None) - 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: self._gen_tree(name, 'enum', {'values': [Node(m.name, m.ifcond) for m in members]}, ifcond, features) - 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: element = self._use_type(element_type) self._gen_tree('[' + element + ']', 'array', {'element-type': element}, ifcond, None) - def visit_object_type_flat(self, name, info, ifcond, features, - members, variants): + def visit_object_type_flat(self, name: str, info: Optional[QAPISourceInfo], + ifcond: List[str], + features: List[QAPISchemaFeature], + members: Sequence[QAPISchemaObjectTypeMember], + variants: Optional[QAPISchemaVariants]) -> None: obj = {'members': [self._gen_member(m) for m in members]} if variants: obj.update(self._gen_variants(variants.tag_member.name, @@ -227,7 +265,10 @@ def visit_object_type_flat(self, name, info, ifcond, features, self._gen_tree(name, 'object', obj, ifcond, features) - 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: self._gen_tree(name, 'alternate', {'members': [ Node({'type': self._use_type(m.type)}, m.ifcond) @@ -235,24 +276,32 @@ def visit_alternate_type(self, name, info, ifcond, features, variants): ]}, ifcond, features) - def visit_command(self, name, info, ifcond, features, - arg_type, ret_type, gen, success_response, boxed, - allow_oob, allow_preconfig): + def visit_command(self, name: str, info: QAPISourceInfo, ifcond: List[str], + features: List[QAPISchemaFeature], + arg_type: QAPISchemaObjectType, + ret_type: Optional[QAPISchemaObjectType], gen: bool, + success_response: bool, boxed: bool, allow_oob: bool, + allow_preconfig: bool) -> None: arg_type = arg_type or self._schema.the_empty_object_type ret_type = ret_type or self._schema.the_empty_object_type - obj = {'arg-type': self._use_type(arg_type), - 'ret-type': self._use_type(ret_type)} + obj: Dict[str, Any] = { + 'arg-type': self._use_type(arg_type), + 'ret-type': self._use_type(ret_type) + } if allow_oob: obj['allow-oob'] = allow_oob self._gen_tree(name, 'command', obj, ifcond, features) - def visit_event(self, name, info, ifcond, features, arg_type, boxed): + def visit_event(self, name: str, info: QAPISourceInfo, + ifcond: List[str], features: List[QAPISchemaFeature], + arg_type: QAPISchemaObjectType, boxed: bool) -> None: arg_type = arg_type or self._schema.the_empty_object_type self._gen_tree(name, 'event', {'arg-type': self._use_type(arg_type)}, ifcond, features) -def gen_introspect(schema, output_dir, prefix, opt_unmask): +def gen_introspect(schema: QAPISchema, output_dir: str, prefix: str, + opt_unmask: bool) -> None: vis = QAPISchemaGenIntrospectVisitor(prefix, opt_unmask) schema.visit(vis) vis.write(output_dir) diff --git a/scripts/qapi/mypy.ini b/scripts/qapi/mypy.ini index dbfeda748c..9ce8b56f22 100644 --- a/scripts/qapi/mypy.ini +++ b/scripts/qapi/mypy.ini @@ -19,11 +19,6 @@ disallow_untyped_defs = False disallow_incomplete_defs = False check_untyped_defs = False -[mypy-qapi.introspect] -disallow_untyped_defs = False -disallow_incomplete_defs = False -check_untyped_defs = False - [mypy-qapi.parser] disallow_untyped_defs = False disallow_incomplete_defs = False diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py index bb0cd717f1..3023bab44b 100644 --- a/scripts/qapi/schema.py +++ b/scripts/qapi/schema.py @@ -28,7 +28,7 @@ class QAPISchemaEntity: meta: Optional[str] = None - def __init__(self, name, info, doc, ifcond=None, features=None): + def __init__(self, name: str, info, doc, ifcond=None, features=None): assert name is None or isinstance(name, str) for f in features or []: assert isinstance(f, QAPISchemaFeature)