Assembly.GetReferencedAssemblies Using

[xccu]

In the MS learning document :
https://learn.microsoft.com/en-us/dotnet/api/system.reflection.assembly.getreferencedassemblies?view=net-8.0&devlangs=csharp&f1url=%3FappId%3DDev17IDEF1%26l%3DEN-US%26k%3Dk(System.Reflection.Assembly.GetReferencedAssemblies)%3Bk(SolutionItemsProject)%3Bk(SolutionItemsProject)%3Bk(DevLang-csharp)%26rd%3Dtrue

Descripted as 'Gets the AssemblyName objects for all the assemblies referenced by this assembly.' means only got the directly referenced assemblies or all sub referenced assemblies?
For example,a project using Microsoft.EntityFrameworkCore.SqlServer. can call GetReferencedAssemblies only once to get assembly Microsoft.IdentityModel.Abstractions?

Thanks.

[huoyaoyuan]

It will return directly referenced assemblies, not packages. A package can contain multiple or no assemblies. A transitive package can be referenced directly in assembly if API from it is directly used. A directly referenced package won't be present if nothing from it is used.

For example,a project using Microsoft.EntityFrameworkCore.SqlServer. can call GetReferencedAssemblies only once to get assembly Microsoft.IdentityModel.Abstractions?

The answer is: whether types from Microsoft.IdentityModel.Abstractions are directly used in this project.

[vitek-karas]

As @huoyaoyuan said. On top of that, compiler will remove assembly references which are not needed, so even if your project references MyPackage.Assembly.dll if it doesn't use anything from it, this API will not return it.