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Nullness:: Unchecked.nonNull for FSharp.Core #16654

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merged 5 commits into from
Feb 7, 2024
Merged

Nullness:: Unchecked.nonNull for FSharp.Core #16654

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0c84eb0
Fsharp.Core Unchecked.nonNull
T-Gro Feb 6, 2024
d31de71
Update src/FSharp.Core/prim-types.fs
T-Gro Feb 6, 2024
5ad24c3
surface area + tests
T-Gro Feb 6, 2024
a82e880
Lets not touch (+)
T-Gro Feb 6, 2024
9bd32f0
Merge branch 'feature/nullness' into feature-nullness-fsharpcore_unch…
T-Gro Feb 6, 2024
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18 changes: 18 additions & 0 deletions src/FSharp.Core/prim-types.fs
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Expand Up @@ -5346,6 +5346,24 @@ namespace Microsoft.FSharp.Core
[<CompiledName("Hash")>]
let inline hash x = GenericHash x

#if !BUILDING_WITH_LKG && !NO_NULLCHECKING_LIB_SUPPORT

[<CompiledName("NonNull")>]
let inline nonNull (x: 'T | null when 'T : not null and 'T : not struct) : 'T = (# "" x : 'T #)
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[<CompiledName("NonNullQuickPattern")>]
let inline (|NonNullQuick|) (value : 'T | null when 'T : not null and 'T : not struct) = nonNull value

#else

[<CompiledName("NonNull")>]
let inline nonNull (x: 'T ) : 'T = x

[<CompiledName("NonNullQuickPattern")>]
let inline (|NonNullQuick|) (value) = nonNull value

#endif

module Checked =

let inline (+) (x: ^T) (y: ^U) : ^V =
Expand Down
22 changes: 22 additions & 0 deletions src/FSharp.Core/prim-types.fsi
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Expand Up @@ -5740,6 +5740,28 @@ namespace Microsoft.FSharp.Core
[<CompiledName("Hash")>]
val inline hash: 'T -> int

/// <summary>Unsafely retypes the value from ('T | null) to 'T without doing any null check at runtime. This is an unsafe operation.</summary>
/// <param name="value">The possibly nullable value.</param>
/// <returns>The same value as in the input.</returns>
[<CompiledName("NonNull")>]
[<Experimental("Experimental library feature, requires '--langversion:preview'")>]
#if !BUILDING_WITH_LKG && !NO_NULLCHECKING_LIB_SUPPORT
val inline nonNull : value: 'T | null -> 'T when 'T : not null and 'T : not struct
#else
val inline nonNull : value: 'T -> 'T
#endif

/// <summary>When used in a pattern forgets 'nullness' of the value without any runtime check. This is an unsafe operation, as null check is being skipped and null value can be returned.</summary>
/// <param name="value">The value to retype from ('T | null) to 'T .</param>
/// <returns>The non-null value.</returns>
[<CompiledName("NonNullQuickPattern")>]
[<Experimental("Experimental library feature, requires '--langversion:preview'")>]
#if !BUILDING_WITH_LKG && !NO_NULLCHECKING_LIB_SUPPORT
val inline (|NonNullQuick|) : value: 'T | null -> 'T when 'T : not null and 'T : not struct
#else
val inline (|NonNullQuick|) : value: 'T -> 'T
#endif

/// <summary>A module of comparison and equality operators that are statically resolved, but which are not fully generic and do not make structural comparison. Opening this
/// module may make code that relies on structural or generic comparison no longer compile.</summary>
module NonStructuralComparison =
Expand Down
1 change: 1 addition & 0 deletions tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj
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Expand Up @@ -225,6 +225,7 @@
<Compile Include="Language\CopyAndUpdateTests.fs" />
<Compile Include="Language\ConstraintIntersectionTests.fs" />
<Compile Include="Language\BooleanReturningAndReturnTypeDirectedPartialActivePatternTests.fs" />
<Compile Include="Language\NullableLibraryConstructsTests.fs" />
<Compile Include="Language\NullableCsharpImportTests.fs" />
<Compile Include="Language\NullableReferenceTypesTests.fs" />
<Compile Include="ConstraintSolver\PrimitiveConstraints.fs" />
Expand Down
59 changes: 59 additions & 0 deletions tests/FSharp.Compiler.ComponentTests/Language/NullableLibraryConstructsTests.fs
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@@ -0,0 +1,59 @@
module Language.NullableLibraryConstructs

open Xunit
open FSharp.Test
open FSharp.Test.Compiler

let typeCheckWithStrictNullness cu =
cu
|> withLangVersionPreview
|> withCheckNulls
|> withWarnOn 3261
|> withOptions ["--warnaserror+"]
|> typecheck

[<FactForNETCOREAPP>]
let ``Can unsafely forgive null using Unchecked nonNull function`` () =
FSharp """module MyLibrary

let readAllLines (reader:System.IO.StreamReader) : seq<string> =
seq {
while not reader.EndOfStream do
reader.ReadLine() |> Unchecked.nonNull
}
"""
|> asLibrary
|> typeCheckWithStrictNullness
|> shouldSucceed

[<FactForNETCOREAPP>]
let ``Can unsafely forgive null using Unchecked NonNullQuick active pattern`` () =
FSharp """module MyLibrary

let readAllLines (reader:System.IO.StreamReader) : seq<string> =
seq {
while not reader.EndOfStream do
match reader.ReadLine() with
| Unchecked.NonNullQuick line -> yield line
}
"""
|> asLibrary
|> typeCheckWithStrictNullness
|> shouldSucceed

[<Fact>]
let ``Can concat two maybe null strings`` () =
FSharp """module MyLibrary

let addStrings (x:string | null) (y:string) : string =

let s2 = x + x
let s3 = y + y
let s4 = y + x
let s4string : string = s4

s4
"""
|> asLibrary
|> typeCheckWithStrictNullness
|> shouldSucceed
28 changes: 15 additions & 13 deletions tests/FSharp.Core.UnitTests/FSharp.Core.SurfaceArea.netstandard20.debug.bsl
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Expand Up @@ -1732,7 +1732,10 @@ Microsoft.FSharp.Core.Operators+Unchecked: Boolean Equals[T](T, T)
Microsoft.FSharp.Core.Operators+Unchecked: Int32 Compare[T](T, T)
Microsoft.FSharp.Core.Operators+Unchecked: Int32 Hash[T](T)
Microsoft.FSharp.Core.Operators+Unchecked: T DefaultOf[T]()
Microsoft.FSharp.Core.Operators+Unchecked: T NonNullQuickPattern[T](T)
Microsoft.FSharp.Core.Operators+Unchecked: T NonNull[T](T)
Microsoft.FSharp.Core.Operators+Unchecked: T Unbox[T](System.Object)
Microsoft.FSharp.Core.Operators: Boolean IsNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: Boolean IsNull[T](T)
Microsoft.FSharp.Core.Operators: Boolean Not(Boolean)
Microsoft.FSharp.Core.Operators: Boolean op_Equality[T](T, T)
Expand Down Expand Up @@ -1768,6 +1771,8 @@ Microsoft.FSharp.Core.Operators: Int64 ToInt64[T](T)
Microsoft.FSharp.Core.Operators: IntPtr ToIntPtr$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,System.IntPtr], T)
Microsoft.FSharp.Core.Operators: IntPtr ToIntPtr[T](T)
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Collections.FSharpList`1[T] op_Append[T](Microsoft.FSharp.Collections.FSharpList`1[T], Microsoft.FSharp.Collections.FSharpList`1[T])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullMatchPattern[T](T)
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullValueMatchPattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpFunc`2[T1,T3] op_ComposeLeft[T2,T3,T1](Microsoft.FSharp.Core.FSharpFunc`2[T2,T3], Microsoft.FSharp.Core.FSharpFunc`2[T1,T2])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpFunc`2[T1,T3] op_ComposeRight[T1,T2,T3](Microsoft.FSharp.Core.FSharpFunc`2[T1,T2], Microsoft.FSharp.Core.FSharpFunc`2[T2,T3])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpOption`1[System.String] FailurePattern(System.Exception)
Expand Down Expand Up @@ -1797,6 +1802,8 @@ Microsoft.FSharp.Core.Operators: System.Exception Failure(System.String)
Microsoft.FSharp.Core.Operators: System.IO.TextReader ConsoleIn[T]()
Microsoft.FSharp.Core.Operators: System.IO.TextWriter ConsoleError[T]()
Microsoft.FSharp.Core.Operators: System.IO.TextWriter ConsoleOut[T]()
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] NullV[T]()
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] WithNullV[T](T)
Microsoft.FSharp.Core.Operators: System.Object Box[T](T)
Microsoft.FSharp.Core.Operators: System.RuntimeMethodHandle MethodHandleOf[T,TResult](Microsoft.FSharp.Core.FSharpFunc`2[T,TResult])
Microsoft.FSharp.Core.Operators: System.String NameOf[T](T)
Expand All @@ -1820,6 +1827,8 @@ Microsoft.FSharp.Core.Operators: T Cos[T](T)
Microsoft.FSharp.Core.Operators: T Cosh$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,T], T)
Microsoft.FSharp.Core.Operators: T Cosh[T](T)
Microsoft.FSharp.Core.Operators: T DefaultArg[T](Microsoft.FSharp.Core.FSharpOption`1[T], T)
Microsoft.FSharp.Core.Operators: T DefaultIfNullV[T](T, System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T DefaultIfNull[T](T, T)
Microsoft.FSharp.Core.Operators: T DefaultValueArg[T](Microsoft.FSharp.Core.FSharpValueOption`1[T], T)
Microsoft.FSharp.Core.Operators: T Exit[T](Int32)
Microsoft.FSharp.Core.Operators: T Exp$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,T], T)
Expand All @@ -1837,6 +1846,11 @@ Microsoft.FSharp.Core.Operators: T Log10[T](T)
Microsoft.FSharp.Core.Operators: T Log[T](T)
Microsoft.FSharp.Core.Operators: T Max[T](T, T)
Microsoft.FSharp.Core.Operators: T Min[T](T, T)
Microsoft.FSharp.Core.Operators: T NonNullQuickPattern[T](T)
Microsoft.FSharp.Core.Operators: T NonNullQuickValuePattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNull[T](T)
Microsoft.FSharp.Core.Operators: T NullArgCheck[T](System.String, T)
Microsoft.FSharp.Core.Operators: T NullArg[T](System.String)
Microsoft.FSharp.Core.Operators: T PowInteger$W[T](Microsoft.FSharp.Core.FSharpFunc`2[Microsoft.FSharp.Core.Unit,T], Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], T, Int32)
Microsoft.FSharp.Core.Operators: T PowInteger[T](T, Int32)
Expand All @@ -1856,6 +1870,7 @@ Microsoft.FSharp.Core.Operators: T Tanh[T](T)
Microsoft.FSharp.Core.Operators: T Truncate$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,T], T)
Microsoft.FSharp.Core.Operators: T Truncate[T](T)
Microsoft.FSharp.Core.Operators: T Unbox[T](System.Object)
Microsoft.FSharp.Core.Operators: T WithNull[T](T)
Microsoft.FSharp.Core.Operators: T op_BitwiseAnd$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], T, T)
Microsoft.FSharp.Core.Operators: T op_BitwiseAnd[T](T, T)
Microsoft.FSharp.Core.Operators: T op_BitwiseOr$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], T, T)
Expand Down Expand Up @@ -1913,19 +1928,6 @@ Microsoft.FSharp.Core.Operators: Void Decrement(Microsoft.FSharp.Core.FSharpRef`
Microsoft.FSharp.Core.Operators: Void Ignore[T](T)
Microsoft.FSharp.Core.Operators: Void Increment(Microsoft.FSharp.Core.FSharpRef`1[System.Int32])
Microsoft.FSharp.Core.Operators: Void op_ColonEquals[T](Microsoft.FSharp.Core.FSharpRef`1[T], T)
Microsoft.FSharp.Core.Operators: Boolean IsNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullMatchPattern[T](T)
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullValueMatchPattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] NullV[T]()
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] WithNullV[T](T)
Microsoft.FSharp.Core.Operators: T DefaultIfNullV[T](T, System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T DefaultIfNull[T](T, T)
Microsoft.FSharp.Core.Operators: T NonNullQuickPattern[T](T)
Microsoft.FSharp.Core.Operators: T NonNullQuickValuePattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNull[T](T)
Microsoft.FSharp.Core.Operators: T NullArgCheck[T](System.String, T)
Microsoft.FSharp.Core.Operators: T WithNull[T](T)
Microsoft.FSharp.Core.OptimizedClosures+FSharpFunc`3[T1,T2,TResult]: FSharpFunc`3 Adapt(Microsoft.FSharp.Core.FSharpFunc`2[T1,Microsoft.FSharp.Core.FSharpFunc`2[T2,TResult]])
Microsoft.FSharp.Core.OptimizedClosures+FSharpFunc`3[T1,T2,TResult]: Microsoft.FSharp.Core.FSharpFunc`2[T2,TResult] Invoke(T1)
Microsoft.FSharp.Core.OptimizedClosures+FSharpFunc`3[T1,T2,TResult]: TResult Invoke(T1, T2)
Expand Down
30 changes: 16 additions & 14 deletions tests/FSharp.Core.UnitTests/FSharp.Core.SurfaceArea.netstandard20.release.bsl
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Expand Up @@ -1732,7 +1732,10 @@ Microsoft.FSharp.Core.Operators+Unchecked: Boolean Equals[T](T, T)
Microsoft.FSharp.Core.Operators+Unchecked: Int32 Compare[T](T, T)
Microsoft.FSharp.Core.Operators+Unchecked: Int32 Hash[T](T)
Microsoft.FSharp.Core.Operators+Unchecked: T DefaultOf[T]()
Microsoft.FSharp.Core.Operators+Unchecked: T NonNullQuickPattern[T](T)
Microsoft.FSharp.Core.Operators+Unchecked: T NonNull[T](T)
Microsoft.FSharp.Core.Operators+Unchecked: T Unbox[T](System.Object)
Microsoft.FSharp.Core.Operators: Boolean IsNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: Boolean IsNull[T](T)
Microsoft.FSharp.Core.Operators: Boolean Not(Boolean)
Microsoft.FSharp.Core.Operators: Boolean op_Equality[T](T, T)
Expand Down Expand Up @@ -1768,6 +1771,8 @@ Microsoft.FSharp.Core.Operators: Int64 ToInt64[T](T)
Microsoft.FSharp.Core.Operators: IntPtr ToIntPtr$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,System.IntPtr], T)
Microsoft.FSharp.Core.Operators: IntPtr ToIntPtr[T](T)
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Collections.FSharpList`1[T] op_Append[T](Microsoft.FSharp.Collections.FSharpList`1[T], Microsoft.FSharp.Collections.FSharpList`1[T])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullMatchPattern[T](T)
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullValueMatchPattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpFunc`2[T1,T3] op_ComposeLeft[T2,T3,T1](Microsoft.FSharp.Core.FSharpFunc`2[T2,T3], Microsoft.FSharp.Core.FSharpFunc`2[T1,T2])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpFunc`2[T1,T3] op_ComposeRight[T1,T2,T3](Microsoft.FSharp.Core.FSharpFunc`2[T1,T2], Microsoft.FSharp.Core.FSharpFunc`2[T2,T3])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpOption`1[System.String] FailurePattern(System.Exception)
Expand Down Expand Up @@ -1797,6 +1802,8 @@ Microsoft.FSharp.Core.Operators: System.Exception Failure(System.String)
Microsoft.FSharp.Core.Operators: System.IO.TextReader ConsoleIn[T]()
Microsoft.FSharp.Core.Operators: System.IO.TextWriter ConsoleError[T]()
Microsoft.FSharp.Core.Operators: System.IO.TextWriter ConsoleOut[T]()
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] NullV[T]()
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] WithNullV[T](T)
Microsoft.FSharp.Core.Operators: System.Object Box[T](T)
Microsoft.FSharp.Core.Operators: System.String NameOf[T](T)
Microsoft.FSharp.Core.Operators: System.String ToString[T](T)
Expand All @@ -1819,6 +1826,8 @@ Microsoft.FSharp.Core.Operators: T Cos[T](T)
Microsoft.FSharp.Core.Operators: T Cosh$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,T], T)
Microsoft.FSharp.Core.Operators: T Cosh[T](T)
Microsoft.FSharp.Core.Operators: T DefaultArg[T](Microsoft.FSharp.Core.FSharpOption`1[T], T)
Microsoft.FSharp.Core.Operators: T DefaultIfNullV[T](T, System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T DefaultIfNull[T](T, T)
Microsoft.FSharp.Core.Operators: T DefaultValueArg[T](Microsoft.FSharp.Core.FSharpValueOption`1[T], T)
Microsoft.FSharp.Core.Operators: T Exit[T](Int32)
Microsoft.FSharp.Core.Operators: T Exp$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,T], T)
Expand All @@ -1836,6 +1845,11 @@ Microsoft.FSharp.Core.Operators: T Log10[T](T)
Microsoft.FSharp.Core.Operators: T Log[T](T)
Microsoft.FSharp.Core.Operators: T Max[T](T, T)
Microsoft.FSharp.Core.Operators: T Min[T](T, T)
Microsoft.FSharp.Core.Operators: T NonNullQuickPattern[T](T)
Microsoft.FSharp.Core.Operators: T NonNullQuickValuePattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNull[T](T)
Microsoft.FSharp.Core.Operators: T NullArgCheck[T](System.String, T)
Microsoft.FSharp.Core.Operators: T NullArg[T](System.String)
Microsoft.FSharp.Core.Operators: T PowInteger$W[T](Microsoft.FSharp.Core.FSharpFunc`2[Microsoft.FSharp.Core.Unit,T], Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], T, Int32)
Microsoft.FSharp.Core.Operators: T PowInteger[T](T, Int32)
Expand All @@ -1855,6 +1869,7 @@ Microsoft.FSharp.Core.Operators: T Tanh[T](T)
Microsoft.FSharp.Core.Operators: T Truncate$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,T], T)
Microsoft.FSharp.Core.Operators: T Truncate[T](T)
Microsoft.FSharp.Core.Operators: T Unbox[T](System.Object)
Microsoft.FSharp.Core.Operators: T WithNull[T](T)
Microsoft.FSharp.Core.Operators: T op_BitwiseAnd$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], T, T)
Microsoft.FSharp.Core.Operators: T op_BitwiseAnd[T](T, T)
Microsoft.FSharp.Core.Operators: T op_BitwiseOr$W[T](Microsoft.FSharp.Core.FSharpFunc`2[T,Microsoft.FSharp.Core.FSharpFunc`2[T,T]], T, T)
Expand Down Expand Up @@ -1912,19 +1927,6 @@ Microsoft.FSharp.Core.Operators: Void Decrement(Microsoft.FSharp.Core.FSharpRef`
Microsoft.FSharp.Core.Operators: Void Ignore[T](T)
Microsoft.FSharp.Core.Operators: Void Increment(Microsoft.FSharp.Core.FSharpRef`1[System.Int32])
Microsoft.FSharp.Core.Operators: Void op_ColonEquals[T](Microsoft.FSharp.Core.FSharpRef`1[T], T)
Microsoft.FSharp.Core.Operators: Boolean IsNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullMatchPattern[T](T)
Microsoft.FSharp.Core.Operators: Microsoft.FSharp.Core.FSharpChoice`2[Microsoft.FSharp.Core.Unit,T] NullValueMatchPattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] NullV[T]()
Microsoft.FSharp.Core.Operators: System.Nullable`1[T] WithNullV[T](T)
Microsoft.FSharp.Core.Operators: T DefaultIfNullV[T](T, System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T DefaultIfNull[T](T, T)
Microsoft.FSharp.Core.Operators: T NonNullQuickPattern[T](T)
Microsoft.FSharp.Core.Operators: T NonNullQuickValuePattern[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNullV[T](System.Nullable`1[T])
Microsoft.FSharp.Core.Operators: T NonNull[T](T)
Microsoft.FSharp.Core.Operators: T NullArgCheck[T](System.String, T)
Microsoft.FSharp.Core.Operators: T WithNull[T](T)
Microsoft.FSharp.Core.OptimizedClosures+FSharpFunc`3[T1,T2,TResult]: FSharpFunc`3 Adapt(Microsoft.FSharp.Core.FSharpFunc`2[T1,Microsoft.FSharp.Core.FSharpFunc`2[T2,TResult]])
Microsoft.FSharp.Core.OptimizedClosures+FSharpFunc`3[T1,T2,TResult]: Microsoft.FSharp.Core.FSharpFunc`2[T2,TResult] Invoke(T1)
Microsoft.FSharp.Core.OptimizedClosures+FSharpFunc`3[T1,T2,TResult]: TResult Invoke(T1, T2)
Expand Down Expand Up @@ -2555,4 +2557,4 @@ Microsoft.FSharp.Reflection.UnionCaseInfo: System.String Name
Microsoft.FSharp.Reflection.UnionCaseInfo: System.String ToString()
Microsoft.FSharp.Reflection.UnionCaseInfo: System.String get_Name()
Microsoft.FSharp.Reflection.UnionCaseInfo: System.Type DeclaringType
Microsoft.FSharp.Reflection.UnionCaseInfo: System.Type get_DeclaringType()
Microsoft.FSharp.Reflection.UnionCaseInfo: System.Type get_DeclaringType()
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