rspec/rules/S3358/python/rule.adoc
Fred Tingaud a3f81b0b6c
Modify rule S3358: LaYC for Nested ternaries
Co-authored-by: Amélie Renard <44666826+amelie-renard-sonarsource@users.noreply.github.com>
2023-06-14 08:47:35 +00:00

58 lines
1.3 KiB
Plaintext

== Why is this an issue?
Nested conditionals are hard to read and can make the order of operations complex to understand.
[source,python]
----
class Job:
@property
def readable_status(self):
return "Running" if job.is_running else "Failed" if job.errors else "Succeeded" # Noncompliant
----
Instead, use another line to express the nested operation in a separate statement.
[source,python]
----
class Job:
@property
def readable_status(self):
if job.is_running:
return "Running"
return "Failed" if job.errors else "Succeeded"
----
=== Exceptions
No issue is raised on conditional expressions in comprehensions.
[source,python]
----
job_statuses = ["Running" if job.is_running else "Failed" if job.errors else "Succeeded" for job in jobs] # Compliant by exception
----
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
=== Message
Extract this nested conditional expression into an independent statement.
=== Highlighting
* Primary: highlight the entire nested conditional expression
* Secondary: highlight the "if" and "else" of the parent conditional expression
message: 'Parent conditional expression.'
'''
== Comments And Links
(visible only on this page)
include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]