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C#

C# static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your C# code

  • All rules 493
  • Vulnerability46
  • Bug88
  • Security Hotspot24
  • Code Smell335

  • Quick Fix 61
Filtered: 27 rules found
clumsy
    Impact
      Clean code attribute
        1. "Trace.WriteLineIf" should not be used with "TraceSwitch" levels

           Code Smell
        2. Arrays should not be created for params parameters

           Code Smell
        3. Jump statements should not be redundant

           Code Smell
        4. Empty "default" clauses should be removed

           Code Smell
        5. Empty "case" clauses that fall through to the "default" should be omitted

           Code Smell
        6. "string.ToCharArray()" and "ReadOnlySpan<T>.ToArray()" should not be called redundantly

           Bug
        7. Redundant property names should be omitted in anonymous classes

           Code Smell
        8. Declarations and initializations should be as concise as possible

           Code Smell
        9. "string.IsNullOrEmpty" should be used

           Code Smell
        10. Default parameter values should not be passed as arguments

           Code Smell
        11. Constructor and destructor declarations should not be redundant

           Code Smell
        12. The simplest possible condition syntax should be used

           Code Smell
        13. LINQ expressions should be simplified

           Code Smell
        14. Sequential tests should not check the same condition

           Code Smell
        15. "catch" clauses should do more than rethrow

           Code Smell
        16. Redundant modifiers should not be used

           Code Smell
        17. "try" statements with identical "catch" and/or "finally" blocks should be merged

           Code Smell
        18. Trivial properties should be auto-implemented

           Code Smell
        19. Runtime type checking should be simplified

           Code Smell
        20. Classes should not be empty

           Code Smell
        21. Inheritance list should not be redundant

           Code Smell
        22. Redundant casts should not be used

           Code Smell
        23. "ToString()" calls should not be redundant

           Code Smell
        24. A "while" loop should be used instead of a "for" loop

           Code Smell
        25. Overriding members should do more than simply call the same member in the base class

           Code Smell
        26. Boolean literals should not be redundant

           Code Smell
        27. Mergeable "if" statements should be combined

           Code Smell

        "string.ToCharArray()" and "ReadOnlySpan<T>.ToArray()" should not be called redundantly

        intentionality - clear
        reliability
        Bug
        Quick FixIDE quick fixes available with SonarLint
        • clumsy

        Why is this an issue?

        How can I fix it?

        More Info

        The string type offers an indexer property that allows you to treat it as a char array. Therefore, if you just need to access a specific character or iterate over all of them, the ToCharArray call should be omitted. For these cases, not omitting makes the code harder to read and less efficient as ToCharArray copies the characters from the string object into a new Unicode character array.

        The same principle applies to utf-8 literals types (ReadOnlySpan<byte>, Span<byte>) and the ToArray method.

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