PostSharp5.0/API Reference/Post­Sharp Namespace/Post Class/Post Methods/Post.​Cast(Source­Type, Target­Type) Method

Post.Cast<SourceType, TargetType> 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: 5.0.55.0 (5.0.55.0)
Syntax
C#
Copy
public static TargetType Cast<SourceType, TargetType>(
	SourceType o
)
where SourceType : class
where TargetType : class

Parameters

o
Type: SourceType
Instance to be casted.

Type Parameters

SourceType
Source type.
TargetType
Target type.

Return Value

Type: TargetType
The object o casted as TargetType.
Remarks
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 TargetType is assignable from SourceType. If yes, the call to this method is simply suppressed. If types are not assignable, a build error is issued.
See Also