Code Inspection: Field can be made readonly (Private Accessibility)
Last modified: 27 October 2022tip
Say you have decided to make an immutable Person class, initialized only via the constructor. You go ahead and implement the following:
public class Person
{
private string _name;
private int _age;
public Person(string name, int age)
{
_name = name;
_age = age;
}
public override string ToString() =>
$"Name: {_name}, Age: {_age}";
}
Public Class Person
Private _name As String
Private _age As Integer
Public Sub New(name As String, age As Integer)
_name = name
_age = age
End Sub
Public Overrides Function ToString() As String
Return String.Format("Name: {0}, Age: {1}", _name, _age)
End Function
End Class
ReSharper can detect that the fields are only being assigned in the constructor and offers to create an additional safeguard: by marking them readonly, we get to ensure that neither this class nor its users will inadvertently assign new values to these fields.