include::../description.adoc[]

== Noncompliant Code Example

[source,csharp]
----
if (string.IsNullOrEmpty(result = str.Substring(index, length))) // Noncompliant
{
  //...
}
----

== Compliant Solution

[source,csharp]
----
var result = str.Substring(index, length);
if (string.IsNullOrEmpty(result))
{
  //...
}
----

== Exceptions

Assignments inside lambda and delegate expressions are allowed. 


Furthermore, the following patterns are also accepted:

----
var a = b = c = 10;
----

----
while ((val = GetNewValue()) > 0)
{
...
}
----

----
private MyClass instance;
public MyClass Instance
{
  get
  {
    return instance ?? (instance = new MyClass());
  }
}
----

include::../see.adoc[]

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== Implementation Specification
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include::../message.adoc[]

include::../highlighting.adoc[]

'''
== Comments And Links
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include::comments-and-links.adoc[]
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