Generic attributes

Champion "Allow Generic Attributes" is currently in the C# team's working set.

Since CIL already supported this for a decade, if F# were to implement it, we won't have to wait for C# to have this.

Pros and Cons

The advantages of making this adjustment to F# are

1. Enforcing generic restrictions at compile time which typeof cannot do
2. Type-safe attribute members without type-unsafe boxing conversions with reflection
3. Generics is faster than reflection

The disadvantages of making this adjustment to F# are (none)

Extra information

Estimated cost (XS, S, M, L, XL, XXL): M to L

Related suggestions: (put links to related suggestions here)

Affidavit (please submit!)

Please tick this by placing a cross in the box:

• This is not a question (e.g. like one you might ask on stackoverflow) and I have searched stackoverflow for discussions of this issue
• I have searched both open and closed suggestions on this site and believe this is not a duplicate
• This is not something which has obviously "already been decided" in previous versions of F#. If you're questioning a fundamental design decision that has obviously already been taken (e.g. "Make F# untyped") then please don't submit it.

Please tick all that apply:

• This is not a breaking change to the F# language design
• I or my company would be willing to help implement and/or test this

For Readers

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