rspec/rules/S1764/cobol/rule.adoc
Fred Tingaud 51369b610e
Make sure that includes are always surrounded by empty lines (#2270)
When an include is not surrounded by empty lines, its content is inlined
on the same line as the adjacent content. That can lead to broken tags
and other display issues.
This PR fixes all such includes and introduces a validation step that
forbids introducing the same problem again.
2023-06-22 10:38:01 +02:00

59 lines
1.2 KiB
Plaintext

== Why is this an issue?
Using the same value on either side of a binary operator is almost always a mistake. In the case of logical operators, it is either a copy/paste error and therefore a bug, or it is simply wasted code, and should be simplified. In the case of arithmetic operators, having the same value on both sides of an operator yields predictable results, and should be simplified.
=== Noncompliant code example
[source,cobol]
----
* always true
IF X = X
PERFORM SECTION1.
END-IF.
* always false
IF X <> X
PERFORM SECTION2.
END-IF.
* if the first one is true, the second one is too
IF X = Y AND X = Y
PERFORM SECTION3.
END-IF.
* if the first one is true, the second one is too
IF X = Y OR X = Y
PERFORM SECTION4.
END-IF.
* always 1
COMPUTE X = Y / Y.
* always 0
COMPUTE X = Y - Y.
----
=== Exceptions
This rule ignores ``++*++`` and ``+``.
include::../see.adoc[]
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
include::../message.adoc[]
include::../highlighting.adoc[]
'''
== Comments And Links
(visible only on this page)
include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]