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latkin / ProvidedTypes.fs
Last active Oct 6, 2015
Static params to provided methods
View ProvidedTypes.fs
* all of ProvidedTypes.fs
* as of
// then add to the bottom
interface ITypeProvider2 with
member __.GetStaticParametersForMethod(methodWithoutArguments:MethodBase) =
match methodWithoutArguments.Name with
latkin /
Last active Aug 29, 2015
Blog: Null-checking considerations in F#
latkin /
Last active Aug 29, 2015
Blog: A handy Powershell filter for converting plain text to objects
View code.fsx
open System
open System.Collections
open System.Collections.Generic
open System.Diagnostics
open System.Linq
module Algos =
// non-lazy solutions
latkin / code.fsx
Last active Aug 29, 2015
Seq.cache repro
View code.fsx
open System.Collections.Generic
let someDataSource = seq{ 1 .. 100 }
let ordersForTask = Dictionary<int, seq<int>>()
let getOrdersForTask task =
match ordersForTask.TryGetValue task with
| true, orders -> orders
| false, _ ->
let orders =
latkin / ops.fsx
Created Apr 30, 2015
Scoping nonstructural operators
View ops.fsx
module Ops =
open NonStructuralComparison
let inline nsHash x = hash x
let inline nsCompare x = compare x
let inline (=&) a b = a = b
let inline (<>&) a b = a <> b
let inline (<&) a b = a < b
let inline (>&) a b = a > b
let inline (<=&) a b = a <= b
latkin / code.fsx
Last active Aug 29, 2015
Benchmark of groupBy perf
View code.fsx
open System.Collections.Generic
open System.Diagnostics
let groupBy keyMaker elements =
elements |> Seq.groupBy keyMaker |> Seq.length
let loopGroup keyMaker elements =
let d = Dictionary<string, seq<'a>>()
for p in elements do
let key = keyMaker p
latkin / test.fsx
Created Apr 22, 2015
Try block perf overhead
View test.fsx
#time ;;
let testNoTry () =
let mutable x = 0
for i in 1 .. 1000000000 do
x <- x + 1
let testTry () =
let mutable x = 0
latkin /
Last active Oct 25, 2015
F# Script Debugging Speclet

#F# Script Debugging

Adds supprt the to Visual F# tooling for rich debugging of F# scripts.

##Motivation F# developers love the low-overhead, iterative REPL experience they have today, but when scripts become larger and more complex, they become difficult to debug. There is no interaction whatsoever today between Editor + F# Interactive and the VS Ddbugger. Thus to debug complex scripts, devs must resort to one of:

  • printf debugging
  • Create a console app, paste in script code, F5-debug the console app
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