Inline Method and Delete

• Jul 13, 2021
• 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 has a simple structure or is called only once.

Availability

This refactoring is available when the caret is in a method’s name inside the method call or declaration. This refactoring affects all method calls If you run it from the method declaration.

Usage

1. Place the caret in a 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. Press the Ctrl + . or Ctrl + ~ shortcut to invoke the Code Actions menu.

3. Select Inline Method and Delete from the menu.

   

After execution, this refactoring replaces the method call with this method body content 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 is called with an expression as a parameter, the Inline Method and Delete refactoring introduces a local variable before inlining the method.