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allow to remove accessibles

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removing an inherited command or parameter can now be indicated
with an attribute set to None

Change-Id: I9645c58e2589c878b62dcebe7a80f479a2b65339
This commit is contained in:
zolliker 2021-06-08 16:17:23 +02:00
parent 6c4bb78f97
commit 039ece9549
1 changed files with 13 additions and 7 deletions
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20
secop/modules.py
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@ -30,7 +30,7 @@ from secop.datatypes import ArrayOf, BoolType, EnumType, FloatRange, \
IntRange, StatusType, StringType, TextType, TupleOf, get_datatype
from secop.errors import BadValueError, ConfigError, InternalError, \
ProgrammingError, SECoPError, SilentError, secop_error
from secop.lib import formatException, getGeneralConfig, mkthread
from secop.lib import formatException, mkthread
from secop.lib.enum import Enum
from secop.params import Accessible, Command, Parameter
from secop.poller import BasicPoller, Poller
@ -56,13 +56,19 @@ class HasAccessibles(HasProperties):
for base in reversed(cls.__bases__):
accessibles.update(getattr(base, 'accessibles', {}))
newaccessibles = {k: v for k, v in cls.__dict__.items() if isinstance(v, Accessible)}
for aname, aobj in accessibles.items():
for aname, aobj in list(accessibles.items()):
value = getattr(cls, aname, None)
if not isinstance(value, Accessible): # else override is already done in __set_name__
anew = aobj.override(value)
newaccessibles[aname] = anew
setattr(cls, aname, anew)
anew.__set_name__(cls, aname)
if value is None:
accessibles.pop(aname)
else:
# this is either a method overwriting a command
# or a value overwriting a property value or parameter default
anew = aobj.override(value)
newaccessibles[aname] = anew
setattr(cls, aname, anew)
anew.__set_name__(cls, aname)
ordered = {}
for aname in cls.__dict__.get('paramOrder', ()):
if aname in accessibles:
@ -221,7 +227,7 @@ class Module(HasAccessibles):
default='user', extname='visibility')
implementation = Property('internal name of the implementation class of the module', StringType(),
extname='implementation')
interface_classes = Property('offical highest Interface-class of the module', ArrayOf(StringType()),
interface_classes = Property('offical highest interface-class of the module', ArrayOf(StringType()),
extname='interface_classes')
# properties, parameters and commands are auto-merged upon subclassing