unnecessary_this

Unnecessary 'this.' qualifier.

The analyzer produces this diagnostic when the keyword this is used to access a member that isn't shadowed.

The following code produces this diagnostic because the use of this to access the field _f isn't necessary:

class C {
  int _f = 2;

  int get f => this._f;
}

Remove the this.:

class C {
  int _f = 2;

  int get f => _f;
}

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