csharp:S2219 Generates false-positive on pattern-matching with `is` operator on strings

Rules and Languages Report False-positive / False-negative...
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1

Hello there. I’m using SonarQube Developer Edition Version 8.3.1 (build 34397) testing C# solution and I get Code Smells on lines of code that compare two string-typed objects (class property and string constant on a static class) using pattern matching of is operator:

bool result = myObject.StringProperty is Const.Example;

instead of:

bool result = myObject.StringProperty == Const.Example;

No type-check is necessary because both types are known to be the same during compile time, but the rule still complains with “Use a ‘null’ check instead.”

2

Hi @MKenin,

I can confirm this as False Positive. I’ve added this issue to track it.

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