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Ausgabe der neuen DB Einträge

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hubobel 2022-01-02 21:50:48 +01:00
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commit cfbbb9ee3d
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venv/lib/python3.9/site-packages/stone/backends/obj_c_client.py Normal file
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from __future__ import absolute_import, division, print_function, unicode_literals
import json
from stone.ir import (
is_nullable_type,
is_struct_type,
is_union_type,
is_void_type,
unwrap_nullable, )
from stone.backends.obj_c_helpers import (
fmt_alloc_call,
fmt_camel_upper,
fmt_class,
fmt_class_prefix,
fmt_func,
fmt_func_args,
fmt_func_args_declaration,
fmt_func_call,
fmt_import,
fmt_property_str,
fmt_route_obj_class,
fmt_route_func,
fmt_route_var,
fmt_routes_class,
fmt_signature,
fmt_type,
fmt_var, )
from stone.backends.obj_c import (
base_file_comment,
comment_prefix,
ObjCBaseBackend,
stone_warning,
undocumented, )
_MYPY = False
if _MYPY:
import typing # noqa: F401 # pylint: disable=import-error,unused-import,useless-suppression
# Hack to get around some of Python 2's standard library modules that
# accept ascii-encodable unicode literals in lieu of strs, but where
# actually passing such literals results in errors with mypy --py2. See
# <https://github.com/python/typeshed/issues/756> and
# <https://github.com/python/mypy/issues/2536>.
import importlib
argparse = importlib.import_module(str('argparse')) # type: typing.Any
_cmdline_parser = argparse.ArgumentParser(
prog='objc-client-backend',
description=(
'Generates a ObjC class with an object for each namespace, and in each '
'namespace object, a method for each route. This class assumes that the '
'obj_c_types backend was used with the same output directory.'), )
_cmdline_parser.add_argument(
'-m',
'--module-name',
required=True,
type=str,
help=(
'The name of the ObjC module to generate. Please exclude the {.h,.m} '
'file extension.'), )
_cmdline_parser.add_argument(
'-c',
'--class-name',
required=True,
type=str,
help=(
'The name of the ObjC class that contains an object for each namespace, '
'and in each namespace object, a method for each route.'))
_cmdline_parser.add_argument(
'-t',
'--transport-client-name',
required=True,
type=str,
help='The name of the ObjC class that manages network API calls.', )
_cmdline_parser.add_argument(
'-w',
'--auth-type',
type=str,
help='The auth type of the client to generate.', )
_cmdline_parser.add_argument(
'-y',
'--client-args',
required=True,
type=str,
help='The client-side route arguments to append to each route by style type.', )
_cmdline_parser.add_argument(
'-z',
'--style-to-request',
required=True,
type=str,
help='The dict that maps a style type to a ObjC request object name.', )
class ObjCBackend(ObjCBaseBackend):
"""Generates ObjC client base that implements route interfaces."""
cmdline_parser = _cmdline_parser
obj_name_to_namespace = {} # type: typing.Dict[str, int]
namespace_to_has_routes = {} # type: typing.Dict[typing.Any, bool]
def generate(self, api):
for namespace in api.namespaces.values():
self.namespace_to_has_routes[namespace] = False
if namespace.routes:
for route in namespace.routes:
if self._should_generate_route(route):
self.namespace_to_has_routes[namespace] = True
break
for namespace in api.namespaces.values():
for data_type in namespace.linearize_data_types():
self.obj_name_to_namespace[data_type.name] = fmt_class_prefix(
data_type)
for namespace in api.namespaces.values():
if namespace.routes and self.namespace_to_has_routes[namespace]:
import_classes = [
fmt_routes_class(namespace.name, self.args.auth_type),
fmt_route_obj_class(namespace.name),
'{}Protocol'.format(self.args.transport_client_name),
'DBStoneBase',
'DBRequestErrors',
]
with self.output_to_relative_path('Routes/{}.m'.format(
fmt_routes_class(namespace.name,
self.args.auth_type))):
self.emit_raw(stone_warning)
imports_classes_m = import_classes + \
self._get_imports_m(
self._get_namespace_route_imports(namespace), [])
self._generate_imports_m(imports_classes_m)
self._generate_routes_m(namespace)
with self.output_to_relative_path('Routes/{}.h'.format(
fmt_routes_class(namespace.name,
self.args.auth_type))):
self.emit_raw(base_file_comment)
self.emit('#import <Foundation/Foundation.h>')
self.emit()
self.emit(fmt_import('DBTasks'))
self.emit()
import_classes_h = [
'DBNilObject',
]
import_classes_h = (import_classes_h + self._get_imports_h(
self._get_namespace_route_imports(
namespace,
include_route_args=False,
include_route_deep_args=True)))
self._generate_imports_h(import_classes_h)
self.emit(
'@protocol {};'.format(
self.args.transport_client_name), )
self.emit()
self._generate_routes_h(namespace)
with self.output_to_relative_path(
'Client/{}.m'.format(self.args.module_name)):
self._generate_client_m(api)
with self.output_to_relative_path(
'Client/{}.h'.format(self.args.module_name)):
self._generate_client_h(api)
def _generate_client_m(self, api):
"""Generates client base implementation file. For each namespace, the client will
have an object field that encapsulates each route in the particular namespace."""
self.emit_raw(base_file_comment)
import_classes = [self.args.module_name]
import_classes += [
fmt_routes_class(ns.name, self.args.auth_type)
for ns in api.namespaces.values()
if ns.routes and self.namespace_to_has_routes[ns]
]
import_classes.append(
'{}Protocol'.format(self.args.transport_client_name))
self._generate_imports_m(import_classes)
with self.block_m(self.args.class_name):
client_args = fmt_func_args_declaration(
[('client',
'id<{}>'.format(self.args.transport_client_name))])
with self.block_func(
func='initWithTransportClient',
args=client_args,
return_type='instancetype'):
self.emit('self = [super init];')
with self.block_init():
self.emit('_transportClient = client;')
for namespace in api.namespaces.values():
if namespace.routes and self.namespace_to_has_routes[namespace]:
base_string = '_{}Routes = [[{} alloc] init:client];'
self.emit(
base_string.format(
fmt_var(namespace.name),
fmt_routes_class(namespace.name,
self.args.auth_type)))
def _generate_client_h(self, api):
"""Generates client base header file. For each namespace, the client will
have an object field that encapsulates each route in the particular namespace."""
self.emit_raw(stone_warning)
self.emit('#import <Foundation/Foundation.h>')
import_classes = [
fmt_routes_class(ns.name, self.args.auth_type)
for ns in api.namespaces.values()
if ns.routes and self.namespace_to_has_routes[ns]
]
import_classes.append('DBRequestErrors')
import_classes.append('DBTasks')
self._generate_imports_m(import_classes)
self.emit()
self.emit('NS_ASSUME_NONNULL_BEGIN')
self.emit()
self.emit('@protocol {};'.format(self.args.transport_client_name))
self.emit()
self.emit(comment_prefix)
description_str = (
'Base client object that contains an instance field for '
'each namespace, each of which contains references to all routes within '
'that namespace. Fully-implemented API clients will inherit this class.'
)
self.emit_wrapped_text(description_str, prefix=comment_prefix)
self.emit(comment_prefix)
with self.block_h(
self.args.class_name,
protected=[
('transportClient',
'id<{}>'.format(self.args.transport_client_name))
]):
self.emit()
for namespace in api.namespaces.values():
if namespace.routes and self.namespace_to_has_routes[namespace]:
class_doc = 'Routes within the `{}` namespace.'.format(
fmt_var(namespace.name))
self.emit_wrapped_text(class_doc, prefix=comment_prefix)
prop = '{}Routes'.format(fmt_var(namespace.name))
typ = '{} *'.format(
fmt_routes_class(namespace.name, self.args.auth_type))
self.emit(fmt_property_str(prop=prop, typ=typ))
self.emit()
client_args = fmt_func_args_declaration(
[('client',
'id<{}>'.format(self.args.transport_client_name))])
description_str = (
'Initializes the `{}` object with a networking client.')
self.emit_wrapped_text(
description_str.format(self.args.class_name),
prefix=comment_prefix)
init_signature = fmt_signature(
func='initWithTransportClient',
args=client_args,
return_type='instancetype')
self.emit('{};'.format(init_signature))
self.emit()
self.emit()
self.emit('NS_ASSUME_NONNULL_END')
def _auth_type_in_route(self, route, desired_auth_type):
for auth_type in route.attrs.get('auth').split(','):
if auth_type.strip() == desired_auth_type:
return True
return False
def _route_is_special_noauth_case(self, route):
return self._auth_type_in_route(route, 'noauth') and self.args.auth_type == 'user'
def _should_generate_route(self, route):
return (self._auth_type_in_route(route, self.args.auth_type) or
self._route_is_special_noauth_case(route))
def _generate_routes_m(self, namespace):
"""Generates implementation file for namespace object that has as methods
all routes within the namespace."""
with self.block_m(
fmt_routes_class(namespace.name, self.args.auth_type)):
init_args = fmt_func_args_declaration([(
'client', 'id<{}>'.format(self.args.transport_client_name))])
with self.block_func(
func='init', args=init_args, return_type='instancetype'):
self.emit('self = [super init];')
with self.block_init():
self.emit('_client = client;')
self.emit()
style_to_request = json.loads(self.args.style_to_request)
for route in namespace.routes:
if not self._should_generate_route(route):
continue
route_type = route.attrs.get('style')
client_args = json.loads(self.args.client_args)
if route_type in client_args.keys():
for args_data in client_args[route_type]:
task_type_key, type_data_dict = tuple(args_data)
task_type_name = style_to_request[task_type_key]
func_suffix = type_data_dict[0]
extra_args = [
tuple(type_data[:-1])
for type_data in type_data_dict[1]
]
if (is_struct_type(route.arg_data_type) and
self._struct_has_defaults(route.arg_data_type)):
route_args, _ = self._get_default_route_args(
namespace, route)
self._generate_route_m(route, namespace,
route_args, extra_args,
task_type_name, func_suffix)
route_args, _ = self._get_route_args(namespace, route)
self._generate_route_m(route, namespace, route_args,
extra_args, task_type_name,
func_suffix)
else:
task_type_name = style_to_request[route_type]
if (is_struct_type(route.arg_data_type) and
self._struct_has_defaults(route.arg_data_type)):
route_args, _ = self._get_default_route_args(
namespace, route)
self._generate_route_m(route, namespace, route_args,
[], task_type_name, '')
route_args, _ = self._get_route_args(namespace, route)
self._generate_route_m(route, namespace, route_args, [],
task_type_name, '')
def _generate_route_m(self, route, namespace, route_args, extra_args,
task_type_name, func_suffix):
"""Generates route method implementation for the given route."""
user_args = list(route_args)
transport_args = [
('route', 'route'),
('arg', 'arg' if not is_void_type(route.arg_data_type) else 'nil'),
]
for name, value, typ in extra_args:
user_args.append((name, typ))
transport_args.append((name, value))
with self.block_func(
func='{}{}'.format(fmt_route_func(route), func_suffix),
args=fmt_func_args_declaration(user_args),
return_type='{} *'.format(task_type_name)):
self.emit('DBRoute *route = {}.{};'.format(
fmt_route_obj_class(namespace.name),
fmt_route_var(namespace.name, route)))
if is_union_type(route.arg_data_type):
self.emit('{} *arg = {};'.format(
fmt_class_prefix(route.arg_data_type),
fmt_var(route.arg_data_type.name)))
elif not is_void_type(route.arg_data_type):
init_call = fmt_func_call(
caller=fmt_alloc_call(
caller=fmt_class_prefix(route.arg_data_type)),
callee=self._cstor_name_from_fields_names(route_args),
args=fmt_func_args([(f[0], f[0]) for f in route_args]))
self.emit('{} *arg = {};'.format(
fmt_class_prefix(route.arg_data_type), init_call))
request_call = fmt_func_call(
caller='self.client',
callee='request{}'.format(
fmt_camel_upper(route.attrs.get('style'))),
args=fmt_func_args(transport_args))
self.emit('return {};'.format(request_call))
self.emit()
def _generate_routes_h(self, namespace):
"""Generates header file for namespace object that has as methods
all routes within the namespace."""
self.emit(comment_prefix)
self.emit_wrapped_text(
'Routes for the `{}` namespace'.format(fmt_class(namespace.name)),
prefix=comment_prefix)
self.emit(comment_prefix)
self.emit()
self.emit('NS_ASSUME_NONNULL_BEGIN')
self.emit()
with self.block_h(
fmt_routes_class(namespace.name, self.args.auth_type)):
description_str = (
'An instance of the networking client that each '
'route will use to submit a request.')
self.emit_wrapped_text(description_str, prefix=comment_prefix)
self.emit(
fmt_property_str(
prop='client',
typ='id<{}>'.format(
self.args.transport_client_name)))
self.emit()
routes_obj_args = fmt_func_args_declaration(
[('client',
'id<{}>'.format(self.args.transport_client_name))])
init_signature = fmt_signature(
func='init',
args=routes_obj_args,
return_type='instancetype')
description_str = (
'Initializes the `{}` namespace container object '
'with a networking client.')
self.emit_wrapped_text(
description_str.format(
fmt_routes_class(namespace.name, self.args.auth_type)),
prefix=comment_prefix)
self.emit('{};'.format(init_signature))
self.emit()
style_to_request = json.loads(self.args.style_to_request)
for route in namespace.routes:
if not self._should_generate_route(route):
continue
route_type = route.attrs.get('style')
client_args = json.loads(self.args.client_args)
if route_type in client_args.keys():
for args_data in client_args[route_type]:
task_type_key, type_data_dict = tuple(args_data)
task_type_name = style_to_request[task_type_key]
func_suffix = type_data_dict[0]
extra_args = [
tuple(type_data[:-1])
for type_data in type_data_dict[1]
]
extra_docs = [(type_data[0], type_data[-1])
for type_data in type_data_dict[1]]
if (is_struct_type(route.arg_data_type) and
self._struct_has_defaults(route.arg_data_type)):
route_args, doc_list = self._get_default_route_args(
namespace, route, tag=True)
self._generate_route_signature(
route, namespace, route_args, extra_args,
doc_list + extra_docs, task_type_name,
func_suffix)
route_args, doc_list = self._get_route_args(
namespace, route, tag=True)
self._generate_route_signature(
route, namespace, route_args, extra_args,
doc_list + extra_docs, task_type_name, func_suffix)
else:
task_type_name = style_to_request[route_type]
if (is_struct_type(route.arg_data_type) and
self._struct_has_defaults(route.arg_data_type)):
route_args, doc_list = self._get_default_route_args(
namespace, route, tag=True)
self._generate_route_signature(
route, namespace, route_args, [], doc_list,
task_type_name, '')
route_args, doc_list = self._get_route_args(
namespace, route, tag=True)
self._generate_route_signature(route, namespace,
route_args, [], doc_list,
task_type_name, '')
self.emit()
self.emit('NS_ASSUME_NONNULL_END')
self.emit()
def _generate_route_signature(
self,
route,
namespace, # pylint: disable=unused-argument
route_args,
extra_args,
doc_list,
task_type_name,
func_suffix):
"""Generates route method signature for the given route."""
for name, _, typ in extra_args:
route_args.append((name, typ))
deprecated = 'DEPRECATED: ' if route.deprecated else ''
func_name = '{}{}'.format(fmt_route_func(route), func_suffix)
self.emit(comment_prefix)
if route.doc:
route_doc = self.process_doc(route.doc, self._docf)
else:
route_doc = 'The {} route'.format(func_name)
self.emit_wrapped_text(
deprecated + route_doc, prefix=comment_prefix, width=120)
self.emit(comment_prefix)
for name, doc in doc_list:
self.emit_wrapped_text(
'@param {} {}'.format(name, doc if doc else undocumented),
prefix=comment_prefix,
width=120)
self.emit(comment_prefix)
output = (
'@return Through the response callback, the caller will ' +
'receive a `{}` object on success or a `{}` object on failure.')
output = output.format(
fmt_type(route.result_data_type, tag=False, no_ptr=True),
fmt_type(route.error_data_type, tag=False, no_ptr=True))
self.emit_wrapped_text(output, prefix=comment_prefix, width=120)
self.emit(comment_prefix)
result_type_str = fmt_type(route.result_data_type) if not is_void_type(
route.result_data_type) else 'DBNilObject *'
error_type_str = fmt_type(route.error_data_type) if not is_void_type(
route.error_data_type) else 'DBNilObject *'
return_type = '{}<{}, {}> *'.format(task_type_name, result_type_str,
error_type_str)
deprecated = self._get_deprecation_warning(route)
route_signature = fmt_signature(
func=func_name,
args=fmt_func_args_declaration(route_args),
return_type='{}'.format(return_type))
self.emit('{}{};'.format(route_signature, deprecated))
self.emit()
def _get_deprecation_warning(self, route):
"""Returns a deprecation tag / message, if route is deprecated."""
result = ''
if route.deprecated:
msg = '{} is deprecated.'.format(fmt_route_func(route))
if route.deprecated.by:
msg += ' Use {}.'.format(fmt_var(route.deprecated.by.name))
result = ' __deprecated_msg("{}")'.format(msg)
return result
def _get_route_args(self, namespace, route, tag=False): # pylint: disable=unused-argument
"""Returns a list of name / value string pairs representing the arguments for
a particular route."""
data_type, _ = unwrap_nullable(route.arg_data_type)
if is_struct_type(data_type):
arg_list = []
for field in data_type.all_fields:
arg_list.append((fmt_var(field.name), fmt_type(
field.data_type, tag=tag, has_default=field.has_default)))
doc_list = [(fmt_var(f.name), self.process_doc(f.doc, self._docf))
for f in data_type.fields if f.doc]
elif is_union_type(data_type):
arg_list = [(fmt_var(data_type.name), fmt_type(
route.arg_data_type, tag=tag))]
doc_list = [(fmt_var(data_type.name),
self.process_doc(data_type.doc,
self._docf) if data_type.doc
else 'The {} union'.format(
fmt_class(data_type
.name)))]
else:
arg_list = []
doc_list = []
return arg_list, doc_list
def _get_default_route_args(
self,
namespace, # pylint: disable=unused-argument
route,
tag=False):
"""Returns a list of name / value string pairs representing the default arguments for
a particular route."""
data_type, _ = unwrap_nullable(route.arg_data_type)
if is_struct_type(data_type):
arg_list = []
for field in data_type.all_fields:
if not field.has_default and not is_nullable_type(
field.data_type):
arg_list.append((fmt_var(field.name), fmt_type(
field.data_type, tag=tag)))
doc_list = ([(fmt_var(f.name), self.process_doc(f.doc, self._docf))
for f in data_type.fields
if f.doc and not f.has_default and
not is_nullable_type(f.data_type)])
else:
arg_list = []
doc_list = []
return arg_list, doc_list
def _docf(self, tag, val):
if tag == 'route':
return '`{}`'.format(fmt_func(val))
elif tag == 'field':
if '.' in val:
cls_name, field = val.split('.')
return ('`{}` in `{}`'.format(
fmt_var(field), self.obj_name_to_namespace[cls_name]))
else:
return fmt_var(val)
elif tag in ('type', 'val', 'link'):
return val
else:
return val