rspec/rules/S1186/python/rule.adoc
Rudy Regazzoni 1763d7fe2b
Modify S1186: Migrate to LayC - empty methods (#3285)
## Review

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- [ ] logical errors and incorrect information
- [ ] information gaps and missing content
- [ ] text style and tone
- [ ] PR summary and labels follow [the
guidelines](https://github.com/SonarSource/rspec/#to-modify-an-existing-rule)
2023-10-18 18:21:32 +02:00

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== Why is this an issue?
:operationName: method
include::../description.adoc[]
=== Exceptions
No issue will be raised when the empty method is abstract and meant to be overridden in a subclass, i.e. it is decorated with `abc.abstractmethod`,
`abc.abstractstaticmethod`, `abc.abstractclassmethod` or `abc.abstractproperty`.
Note however that these methods should normally have a docstring explaining how subclasses should implement these methods.
[source,python]
----
import abc
class MyAbstractClass(abc.ABC):
@abc.abstractproperty
def myproperty(self):
pass
@abc.abstractclassmethod
def myclassmethod(cls):
pass
@abc.abstractmethod
def mymethod(self):
pass
@abc.abstractstaticmethod
def mystaticmethod():
pass
----
== How to fix it
=== Code examples
==== Noncompliant code example
[source,python,diff-id=1,diff-type=noncompliant]
----
def shouldNotBeEmpty(): # Noncompliant - method is empty
pass
def notImplemented(): # Noncompliant - method is empty
pass
def emptyOnPurpose(): # Noncompliant - method is empty
pass
----
==== Compliant solution
[source,python,diff-id=1,diff-type=compliant]
----
def shouldNotBeEmpty():
doSomething()
def notImplemented():
raise NotImplementedError("notImplemented() cannot be performed because ...")
def emptyOnPurpose():
pass # comment explaining why the method is empty
def emptyOnPurposeBis():
"""
Docstring explaining why this function is empty.
"""
----
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
include::../message.adoc[]
'''
== Comments And Links
(visible only on this page)
include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]