Things needed for a PoC port of the Stack Overflow codebase to LinqAF

[kevin-montrose]

Just for kicks, here's basically what would be needed to make this not hellaciously awful.

• AddRange on IList extension method
• ILookup<T,V> defined
• IGrouping<T,V> defined
• IOrderedEnumerable defined
• AsEnumerable() on the various sorted enumerables should return an IOrderedEnumerable

Obviously this code can't be released, but it'll give a baseline of before & after compile times from conversion.

Spoiler alert: I bet they're reaaaaaaal bad.

[kevin-montrose]

AddRange PoC

Needs bridge types (to avoid allocs) and optimizations for one item and range enumerables.

[kevin-montrose]

We'd also need an IQueryable pass-through, otherwise a naive drop in is gonna do really bad things to L2S or L2EF (or whatever).

[kevin-montrose]

Something nice to replace string.Join(string, IEnumerable) as well.

[kevin-montrose]

SO has it's own ToHashSet(); since that's in .NET 4.7.1 might as well bite the bullet on those additions.

[kevin-montrose]

2.0.0 makes big steps in this direction, though leaving it open for now.

Also:
https://twitter.com/kevinmontrose/status/956998492190322688

[kevin-montrose]

Will also need something for Task.WhenAll/WaitAll/Whatever