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Do not assign a variable to itself

Docs > コード分析 > Static Analysis Rules > Do not assign a variable to itself

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Metadata

ID: csharp-best-practices/no-self-assign

Language: C#

Severity: Notice

Category: Error Prone

Description

Do not assign a value to itself, it has no effect.

Non-Compliant Code Examples

class MyClass {
    public void myMethod()
    {
        var myValue1 = 2;
        myValue1 = myValue1;
    }
}

Compliant Code Examples

class MyClass {
    public void myMethod()
    {
        var myValue1 = 2;
        var myValue2 = 3;
        myValue1 = myValue2;
        myMethod2(myValue1, { myValue2 = myValue2 });
    }
}

How to use this rule

1
2
rulesets:
  - csharp-best-practices     # Rules to enforce C# best practices.

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