ReplaceMethodBodyWithTemplate Code Action

Description

Replaces the body of a method declaration where this action is applied.

This action is commonly used when creating a mapping for an event handler. See [Writing a mapping for event handlers](Writing a mapping for event handlers).

Properties

Property	​Usage	​Description
​CodeTemplate	​Content property / Required	The C# code template. This template must specify a valid code block or statement.

Example

The following mapping will add an if statement that wraps the method body with a condition regarding its first parameter.

<MapUnit xmlns="clr-namespace:Mobilize.Mappers.Extensibility.Core;assembly=Mobilize.ExtensibleMappers"
   xmlns:map="clr-namespace:Mobilize.Mappers.Extensibility.Code;assembly=Mobilize.ExtensibleMappers">
   <MapUnit.Elements>
      <map:CodeMapPackage Type="System.Windows.UIElement" Name="System.Windows.UIElement">
         <map:CodeMapPackage.Maps>

            ...

            <map:CodeMap Kind="EventDecl" MemberName="Tap">
               <map:ActionSequence>
                  <map:ReplaceParameterDeclarationType Position="1">
                     <![CDATA[Windows.UI.Xaml.RoutedEventArgs]]>
                  </map:ReplaceParameterDeclarationType>
                  <map:ReplaceMethodBodyWithTemplate>
                     <![CDATA[if ($parameter0Name != null) $body;]]>
                  </map:ReplaceMethodBodyWithTemplate>
               </map:ActionSequence>
            </map:CodeMap>

            ...
         </map:CodeMapPackage.Maps>
      </map:CodeMapPackage>
   </MapUnit.Elements>
</MapUnit>

Say that we have the following code:

public int Subscribe()
{

   someText.Tap += someText_Tap;
}

void someText_Tap(object sender, System.Windows.Input.GestureEventArgs e)
{
   System.Diagnostics.Debug.WriteLine("Tap!");
}

After running the conversion tool with this new mapping we get the following code:

public int Subscribe()
{
   someText.Tapped += someText_Tap;
}

void someText_Tap(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
   if ( sender != null )
   {
      System.Diagnostics.Debug.WriteLine("Tap!");
   }
}

Predefined template variables

​Variable name	Description​
$parameter0Name, $parameter1Name, ..., $parameterXName	​The names of the parameters of the current method. Parameter names are 0 based.
​$body	​The block with the body of the current method

Notes

TODO