rspec/rules/S1206/csharp/rule.adoc
Fred Tingaud 16f6c0aecf
Inline adoc when include has no additional value (#1940)
Inline adoc files when they are included exactly once.

Also fix language tags because this inlining gives us better information
on what language the code is written in.
2023-05-25 14:18:12 +02:00

63 lines
1.3 KiB
Plaintext

== Why is this an issue?
There is a contract between ``++Equals(object)++`` and ``++GetHashCode()++``: If two objects are equal according to the ``++Equals(object)++`` method, then calling ``++GetHashCode()++`` on each of them must yield the same result. If this is not the case, many collections won't handle class instances correctly.
In order to comply with the contract, ``++Equals(object)++`` and ``++GetHashCode()++`` should be either both inherited, or both overridden.
=== Noncompliant code example
[source,csharp]
----
class MyClass // Noncompliant - should also override "GetHashCode()"
{
public override bool Equals(object obj)
{
// ...
}
}
----
=== Compliant solution
[source,csharp]
----
class MyClass
{
public override bool Equals(object obj)
{
// ...
}
public override int GetHashCode()
{
// ...
}
}
----
include::../see.adoc[]
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
=== Message
This [class|struct] overrides "GetHashCode()|Equals()" and should therefore also override "GetHashCode()|Equals()".
=== Highlighting
The [class|struct] name.
'''
== Comments And Links
(visible only on this page)
include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]