CRR0001 - Redundant sub-expressions in a binary operation

This analyzer detects identical sub-expressions in the binary operation. Such sub-expressions are redundant and the expression can be simplified.

csharp

if ((a > 10) && (a > 10)){ // CRR0001
    bool c = b == "foo" || b == "foo"; // CRR0001
}

If (a > 10) AndAlso (a > 10) Then ' CRR0001
    Dim c As Boolean = b = "foo" OrElse b = "foo" ' CRR0001
End If

Use the Simplify Expression refactoring to fix this code.

csharp

if (a > 10){
    bool c = b == "foo";
}

If a > 10 Then
    Dim c As Boolean = b = "foo"
End If