RCS1220: Use pattern matching instead of combination of 'is' operator and cast operator

Properties

Property	Value
Default Severity	Info
Minimum language version	7.0

Examples

Example #1

diagnostic.cs

if (x is T && Foo((T)x))
{
}

fix.cs

if (x is T y && Foo(y))
{
}

Applies to

• Extension for VS 2022
• Extension for VS Code
• Extension for Open VSX
• Package Roslynator.Analyzers