Inline Method (and delete)

• Aug 07, 2018
• 2 minutes to read

Purpose

Replaces the current method call(s) with the method's body and deletes the method. Use this Refactoring when the method is trivial or called only once.

Availability

Available when the caret is on a method's name within the method call or declaration. Being executed from the method declaration, this Refactoring affects all method calls.

Usage

1. Place the caret on the method name.

   NOTE

   The blinking cursor shows the caret's position at which the Refactoring is available.

   C#

   public static double │ConvertToUSD(Currency source, double amount) {
       return amount / GetCurrencyRate(source);
   }
   static void Main(string[] args) {
       double price = ConvertToUSD(Currency.JPY, 888);
       // ...
   }
   

   VB.NET

   Public Shared Function │ConvertToUSD(ByVal source As Currency, _
                                       ByVal amount As Double) As Double
       Return amount / GetCurrencyRate(source)
   End Function
   
   Shared Sub Main(ByVal args() As String)
       Dim price2 As Double = ConvertToUSD(Currency.JPY, 888)
       ' ...
   End Sub
   

2. Use the Ctrl + . or Ctrl + ~ shortcut to invoke the Code Actions Menu.
3. Select Inline Method (and delete) from the menu.

After execution, the Refactoring replaces the method call with the method body contents and deletes the method. Each parameter reference in the method's scope is replaced with the corresponding variable or constant from the outer scope.

C#

static void Main(string[] args) {
    double price = 888 / GetCurrencyRate(Currency.JPY);
    // ...
}

VB.NET

Shared Sub Main(ByVal args() As String)
    Dim price2 As Double = 888 / GetCurrencyRate(Currency.JPY)
    ' ...
End Sub

NOTE

If the method was called with an expression as a parameter, the Refactoring introduces a local variable before inlining the method.