csi defaults to C#7

[marek-safar]

Version Used: 2.3.1.61919

Steps to Reproduce:

run csi.exe

Microsoft (R) Visual C# Interactive Compiler version 2.3.1.61919
Copyright (C) Microsoft Corporation. All rights reserved.

Type "#help" for more information.
> int i = default;
(1,9): error CS8107: Feature 'default literal' is not available in C# 7. Please use language version 7.1 or greater.

Expected Behavior:

Default to latest C# or allow to set it

Actual Behavior:

No C# 7.1 features in csi.exe

[jcouv]

@marek-safar Thanks for pointing this out. I'll look into it.

[xCyborg]

Any updates on this? I still can't find how to use the latest language features in csi or C# interactive.

[jcouv]

This was fixed in 15.5 (not sure exactly which preview) which is why I closed the issue.
PR: #21331

[jcouv]

Verified this works:

>csi
Microsoft (R) Visual C# Interactive Compiler version 2.6.0.62308
Copyright (C) Microsoft Corporation. All rights reserved.

Type "#help" for more information.
> int i = default;