Unused Local Variable or Formal Parameter (ULVFP)

Description:

ULVFP detects unused local variables and formal parameters. Note that unlike C++ it is not possible to omit a formal parameter name preserving method signature. It is often the case where a method overriding a base class method must declare a parameter it does not actually need. Such situations are detected and do not produce a warning message.

Incorrect:

MyLabel = class
    private
      name:String;

    public
      function GetName(upperCase:boolean):string;
end;
...
function MyLabel.GetName(upperCase:boolean):string;
begin
  result := name;
end;

Correct:

MyLabel = class
    private
      name:String;

    public
      function GetName():string;
end;
...
function MyLabel.GetName():string;
begin
  result := name;
end;

Refactoring:

• Remove Parameter