Question

I had a look through the documentation on the Wiki, but it seems a bit thin. How do I determine if a type implements a given interface using Cecil? For my particular implementation it is important that I do not actually load the type into the AppDomain.

Here’s the code that I have so far:

Dim outputModule As ModuleDefinition = ModuleDefinition.ReadModule(outputFile)

For Each assemblyType As TypeDefinition In outputModule.Types
    'How to determine if assemblyType implements a specific interface?
Next

Answer 1

In C# I have implemented it comparing the full name of the interfaces:

if (assemblyType.Interfaces.Any(
  type => type.Resolve().FullName == typeof(YourInterface).FullName
)) {
  // ...
}

You can also compare TypeDefinitions if you have the one for your interface.