C#•4y ago

✅ Can't get `InternalsVisibleTo` to work

From assembly (project) A.BA.B I added the following in a file

using System.Runtime.CompilerServices;

[assembly: InternalsVisibleTo("A.B.Tests")]

namespace MyNamespace
{
    internal class MyClass {}
}

using System.Runtime.CompilerServices;

[assembly: InternalsVisibleTo("A.B.Tests")]

namespace MyNamespace
{
    internal class MyClass {}
}

But the assembly A.B.TestA.B.Test can't see MyClassMyClass.
Is there something extra that I should do?

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ero

E

ero•12/6/22, 10:38 AM

Nope, that should do it

An.C

A

An.COP•12/6/22, 1:05 PM

So what you recommend at this point is for me to make extra sure that the names of the assemblies are correct, or what?

ero

E

ero•12/6/22, 1:10 PM

i recommend sharing the error

An.C

A

An.COP•12/6/22, 1:10 PM

I just disassembled

A.B

A.B

and I can see class MyclassMyclass in it

An.C

A

An.COP•12/6/22, 1:11 PM

but should I also see that instruction for the CompilerServiceCompilerService?

An.C

A

An.COP•12/6/22, 1:13 PM

The error is quite simple:

CS0234    The type or namespace name 'MyClass' does not exist in the namespace 'MyNamesapce' (are you missing an assembly reference?)    A.B.Tests (net472), A.B.Tests (netcoreapp3.1)

CS0234    The type or namespace name 'MyClass' does not exist in the namespace 'MyNamesapce' (are you missing an assembly reference?)    A.B.Tests (net472), A.B.Tests (netcoreapp3.1)

ero

E

ero•12/6/22, 1:14 PM

incompatible frameworks i guess?

ero

E

ero•12/6/22, 1:14 PM

An.C

A

An.COP•12/6/22, 1:15 PM

you could be onto something

An.C

A

An.COP•12/6/22, 1:16 PM

A.B.Tests is a netstandard2.0netstandard2.0 proj. Shouldn't that be the most compatible of them all, though?

ero

E

ero•12/6/22, 1:16 PM

i don't know. why is it that version?

ero

E

ero•12/6/22, 1:16 PM

forced to by your company?

An.C

A

An.COP•12/6/22, 1:16 PM

yes, correct

An.C

A

An.COP•12/6/22, 1:17 PM

it has to be portable and part of a lib and bla bla bla

An.C

A

An.COP•12/6/22, 1:17 PM

so I don't have a say on netstandard2.0netstandard2.0 or not

ero

E

ero•12/6/22, 1:18 PM

hm, cringe

ero

E

ero•12/6/22, 1:18 PM

net core is the most portable

ero

E

ero•12/6/22, 1:18 PM

i mean, the entire point of it is to be cross platform

An.C

A

An.COP•12/6/22, 1:18 PM

let me rephrase: I don't know why but it's set netstandard2.0netstandard2.0

An.C

A

An.COP•12/6/22, 1:19 PM

so forget what I said

An.C

A

An.COP•12/6/22, 1:19 PM

I don't recall the exact reason

ero

E

ero•12/6/22, 1:19 PM

i can't test that setup because i'm on linux

An.C

A

An.COP•12/6/22, 1:19 PM

how sure are you that's the framework compatibility an issue here?

ero

E

ero•12/6/22, 1:20 PM

like 10%?

ero

E

ero•12/6/22, 1:20 PM

i don't know much about it

An.C

A

An.COP•12/6/22, 1:20 PM

can't linux target netstandard?

ero

E

ero•12/6/22, 1:20 PM

ask in #roslyn

An.C

AAn.C can't linux target netstandard?

ero

E

ero•12/6/22, 1:20 PM

but not framework

ero

E

ero•12/6/22, 1:20 PM

and you included A.B.Tests (net472)A.B.Tests (net472) this so

An.C

A

An.COP•12/6/22, 1:20 PM

I can temporarily remove framework

An.C

A

An.COP•12/6/22, 1:20 PM

but you can see that the issue is also for core

ero

E

ero•12/6/22, 1:21 PM

i actually can't see that, no

An.C

A

An.COP•12/6/22, 1:21 PM

A.B.Tests (net472), A.B.Tests (netcoreapp3.1)

ero

Eero Click to see attachment

ero

E

ero•12/6/22, 1:21 PM

in fact i showed that the issue does not exist

An.C

A

An.COP•12/6/22, 1:21 PM

the error I posted

An.C

AAn.C The error is quite simple: ``` CS0234 The type or namespace name 'MyClass' do...

An.C

A

An.COP•12/6/22, 1:21 PM

this

ero

E

ero•12/6/22, 1:21 PM

oh, i mustve gotten confused

An.C

A

An.COP•12/6/22, 1:22 PM

np

ero

E

ero•12/6/22, 1:22 PM

yeah then i'm definitely more sure that it's the target frameworks

An.C

A

An.COP•12/6/22, 1:22 PM

I see

ero

E

ero•12/6/22, 1:22 PM

make sure to ask in the roslyn channel, they're sure to know more

An.C

A

An.COP•12/6/22, 1:22 PM

thank you

An.C

AAn.C A.B.Tests is a `netstandard2.0` proj. Shouldn't that be the most compatible of t...

333fred

3

333fred•12/6/22, 4:16 PM

It's the most compatible library type. Your tests can't be that though

An.C

A

An.COP•12/6/22, 4:17 PM

My tests are infact net472 and netcoreapp3.1

An.C

A

An.COP•12/6/22, 4:18 PM

netstandar2.0 is the assembly where the internal class is defined. And I need access to it from the tests

333fred

3

333fred•12/6/22, 4:20 PM

Can you post a repro?

An.C

A

An.COP•12/6/22, 4:20 PM

333fred

3

333fred•12/6/22, 4:21 PM

Why the smiley?

An.C

A

An.COP•12/6/22, 4:23 PM

I'll try a repro proj tomorrow morning (CET)

An.C

A

An.COP•12/6/22, 4:23 PM

that'll likely work