PostSharp 6.10 / / Post­Sharp Documentation / API Reference / Post­Sharp Namespace / Post Class / Post Methods / Post.​Cast(TSource, TTarget) Method

Post.Cast<TSource, TTarget> Method

At post-compile time, casts an instance of a type into another. A post-compile time error is reported if the source type cannot be assigned to the target type.

Namespace:  PostSharp
Assembly:  PostSharp (in PostSharp.dll) Version: (
public static TTarget Cast<TSource, TTarget>(
	TSource o
where TSource : class
where TTarget : class


Type: TSource
Instance to be casted.

Type Parameters

Source type.
Target type.

Return Value

Type: TTarget
The object o casted as TTarget.
The purpose of this method is to make a source code compilable even when an interface will be implemented at post-compile time. PostSharp ensures that TTarget is assignable from TSource. If yes, the call to this method is simply suppressed. If types are not assignable, a build error is issued.
See Also