Merge main to release/dev17.14

.fantomasignore

@@ -40,6 +40,9 @@ src/Compiler/Checking/SignatureConformance.fs
 src/Compiler/Checking/TypeHierarchy.fs
 src/Compiler/Checking/TypeRelations.fs
 
+# nullness-related problems
+src/Compiler/DependencyManager/DependencyProvider.fs
+
 # Incorrectly formatted: https://github.com/dotnet/fsharp/pull/14645/commits/49443a67ea8a17670c8a7c80c8bdf91f82231e91 or https://github.com/fsprojects/fantomas/issues/2733
 # This CompilerImports.fs behavior is not fixed yet, following up in  https://github.com/fsprojects/fantomas/issues/2733
 src/Compiler/Driver/CompilerImports.fs

.gitignore

@@ -129,4 +129,9 @@ tests/FSharp.Compiler.Service.Tests/FSharp.CompilerService.SurfaceArea.netstanda
 /tests/AheadOfTime/Trimming/output.txt
 *.svclog
 micro.exe
-positive.exe
+positive.exe
+/tests/FSharp.Compiler.ComponentTests/FSharpChecker/StandardError.txt
+/tests/FSharp.Compiler.ComponentTests/FSharpChecker/StandardOutput.txt
+
+# ilverify baseline result files
+*.bsl.actual

DEVGUIDE.md

@@ -204,6 +204,33 @@ Linux/macOS:
 export TEST_UPDATE_BSL=1
 ```
 
+## Retain Test run built artifacts
+
+When investigating tests issues it is sometimes useful to examine the artifacts built when running tests.  Those built using the newer test framework are usually,
+built in the %TEMP%\FSharp.Test.Utilities subdirectory.
+
+To tell the test framework to not cleanup these files use the: FSHARP_RETAIN_TESTBUILDS environment variable
+
+Windows:
+
+CMD:
+
+```shell
+set FSHARP_RETAIN_TESTBUILDS=1
+```
+
+PowerShell:
+
+```shell
+$env:FSHARP_RETAIN_TESTBUILDS=1
+```
+
+Linux/macOS:
+
+```shell
+export FSHARP_RETAIN_TESTBUILDS=1
+```
+
 Next, run a build script build (debug or release, desktop or coreclr, depending which baselines you need to update), and test as described [above](#Testing-from-the-command-line). For example:
 
 `./Build.cmd -c Release -testCoreClr` to update Release CoreCLR baselines.

docs/release-notes/.FSharp.Compiler.Service/9.0.200.md

@@ -1,5 +1,6 @@
 ### Fixed
 
+* Fix Realsig+ generates nested closures with incorrect Generic  ([Issue #17797](https://github.com/dotnet/fsharp/issues/17797), [PR #17877](https://github.com/dotnet/fsharp/pull/17877))
 * Fix missing TailCall warning in Sequential in use scope ([PR #17927](https://github.com/dotnet/fsharp/pull/17927))
 * Fix false negatives for passing null to "obj" arguments. Only "obj | null" can now subsume any type ([PR #17757](https://github.com/dotnet/fsharp/pull/17757))
 * Fix internal error when calling 'AddSingleton' and other overloads only differing in generic arity ([PR #17804](https://github.com/dotnet/fsharp/pull/17804))
@@ -21,6 +22,8 @@
 * Completion: fix qualified completion in sequence expressions [PR #18111](https://github.com/dotnet/fsharp/pull/18111)
 * Symbols: try to use ValReprInfoForDisplay in Mfv.CurriedParameterGroups ([PR #18124](https://github.com/dotnet/fsharp/pull/18124))
 * Shim/file system: fix leaks of the shim [PR #18144](https://github.com/dotnet/fsharp/pull/18144)
+* fsi: fix auto-loading of script file inside NuGet package ([PR #18177](https://github.com/dotnet/fsharp/pull/18177))
+* Fix for `Obsolete` attribute warning/error not taken into account when used with a unit of measure [PR #18182](https://github.com/dotnet/fsharp/pull/18182)
 
 ### Added
 
@@ -52,7 +55,8 @@
 * Better ranges for #nowarn error reporting; bring back #nowarn warnings for --langVersion:80; add warnings under feature flag ([PR #17871](https://github.com/dotnet/fsharp/pull/17871))
 * CheckAndThrow can be invoked only from within Cancellable context ([PR #18037](https://github.com/dotnet/fsharp/pull/18037))
 * Make ILTypeDef base type calculation lazy. ([PR #18005](https://github.com/dotnet/fsharp/pull/18005))
+* Removed redundant hash directives around nullness syntax ([Issue #18601](https://github.com/dotnet/fsharp/issues/18061), [PR #18203](https://github.com/dotnet/fsharp/pull/18203), [PR #18207](https://github.com/dotnet/fsharp/pull/18207))
 
 ### Breaking Changes
 
-* Aliasing `StructAttribute` will now produce a warning (part of [Language suggestion #1136](https://github.com/fsharp/fslang-suggestions/issues/1136), [PR #18098](https://github.com/dotnet/fsharp/pull/18098))
+* Aliasing `StructAttribute` will now produce a warning (part of [Language suggestion #1136](https://github.com/fsharp/fslang-suggestions/issues/1136), [PR #18098](https://github.com/dotnet/fsharp/pull/18098))

docs/release-notes/.FSharp.Compiler.Service/9.0.300.md

@@ -0,0 +1,13 @@
+### Fixed
+
+* Fix Realsig+ generates nested closures with incorrect Generic  ([Issue #17797](https://github.com/dotnet/fsharp/issues/17797), [PR #17877](https://github.com/dotnet/fsharp/pull/17877))
+* Set `Cancellable.token` from async computation ([Issue #18235](https://github.com/dotnet/fsharp/issues/18235), [PR #18238](https://github.com/dotnet/fsharp/pull/18238))
+
+### Added
+
+
+### Changed
+
+
+### Breaking Changes
+

eng/Version.Details.xml

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="9.0.0-alpha.1.24619.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-reference-packages" Version="9.0.0-alpha.1.25066.1">
       <Uri>https://github.com/dotnet/source-build-reference-packages</Uri>
-      <Sha>e2b1d16fd66540b3a5813ec0ac1fd166688c3e0a</Sha>
+      <Sha>93a3395781d30f69201367371c28cfc5005c0264</Sha>
       <SourceBuild RepoName="source-build-reference-packages" ManagedOnly="true" />
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
@@ -42,14 +42,14 @@
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.24623.3">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.25065.2">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e0e05154656254a735ebf19ffa5a37a8b915039b</Sha>
+      <Sha>c4bbc67763bf0c5a868862df874079380e647d61</Sha>
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.arcade" Version="9.0.0-beta.24623.3">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.arcade" Version="9.0.0-beta.25065.2">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>e0e05154656254a735ebf19ffa5a37a8b915039b</Sha>
+      <Sha>c4bbc67763bf0c5a868862df874079380e647d61</Sha>
       <SourceBuild RepoName="arcade" ManagedOnly="true" />
     </Dependency>
     <Dependency Name="optimization.windows_nt-x64.MIBC.Runtime" Version="1.0.0-prerelease.24462.2">

eng/Versions.props

@@ -193,7 +193,6 @@
     <XUnitVersion>2.9.0</XUnitVersion>
     <XUnitRunnerVersion>2.8.2</XUnitRunnerVersion>
     <XunitXmlTestLoggerVersion>3.1.17</XunitXmlTestLoggerVersion>
-    <FluentAssertionsVersion>5.10.3</FluentAssertionsVersion>
     <HumanizerCoreVersion>2.2.0</HumanizerCoreVersion>
     <!-- -->
     <!-- MIBC profile packages -->

eng/common/template-guidance.md

@@ -57,7 +57,7 @@ extends:
 
 Note: Multiple outputs are ONLY applicable to 1ES PT publishing (only usable when referencing `templates-official`).
 
-# Development notes
+## Development notes
 
 **Folder / file structure**
 

global.json

@@ -1,10 +1,10 @@
 {
   "sdk": {
-    "version": "9.0.100",
+    "version": "9.0.102",
     "allowPrerelease": true
   },
   "tools": {
-    "dotnet": "9.0.100",
+    "dotnet": "9.0.102",
     "vs": {
       "version": "17.8",
       "components": [
@@ -17,7 +17,7 @@
     "perl": "5.38.2.2"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.24623.3",
+    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.25065.2",
     "Microsoft.DotNet.Helix.Sdk": "8.0.0-beta.23255.2"
   }
 }

src/Compiler/Checking/AttributeChecking.fs

@@ -417,7 +417,27 @@ let CheckEntityAttributes g (tcref: TyconRef) m =
         CheckFSharpAttributes g tcref.Attribs m
 
 let CheckILEventAttributes g (tcref: TyconRef) cattrs m  =    
-    CheckILAttributes g (isByrefLikeTyconRef g m tcref) cattrs m 
+    CheckILAttributes g (isByrefLikeTyconRef g m tcref) cattrs m
+
+let CheckUnitOfMeasureAttributes g (measure: Measure) = 
+    let checkAttribs tm m =
+        let attribs =
+            ListMeasureConOccsWithNonZeroExponents g true tm
+            |> List.map fst
+            |> List.map(_.Attribs)
+            |> List.concat
+
+        CheckFSharpAttributes g attribs m |> CommitOperationResult
+
+    match measure with
+    | Measure.Const(range = m) -> checkAttribs measure m
+    | Measure.Inv ms -> checkAttribs measure ms.Range
+    | Measure.One(m) -> checkAttribs measure m
+    | Measure.RationalPower(measure = ms1) -> checkAttribs measure ms1.Range
+    | Measure.Prod(measure1= ms1; measure2= ms2) ->
+        checkAttribs ms1 ms1.Range
+        checkAttribs ms2 ms2.Range
+    | Measure.Var(typar) -> checkAttribs measure typar.Range
 
 /// Check the attributes associated with a method, returning warnings and errors as data.
 let CheckMethInfoAttributes g m tyargsOpt (minfo: MethInfo) =

src/Compiler/Checking/AttributeChecking.fsi

@@ -89,6 +89,8 @@ val CheckEntityAttributes: g: TcGlobals -> tcref: TyconRef -> m: range -> Operat
 
 val CheckUnionCaseAttributes: g: TcGlobals -> x: UnionCaseRef -> m: range -> OperationResult<unit>
 
+val CheckUnitOfMeasureAttributes: g: TcGlobals -> measure: Measure -> unit
+
 val CheckRecdFieldAttributes: g: TcGlobals -> x: RecdFieldRef -> m: range -> OperationResult<unit>
 
 val CheckValAttributes: g: TcGlobals -> x: ValRef -> m: range -> OperationResult<unit>

src/Compiler/Checking/CheckDeclarations.fs

@@ -3241,6 +3241,13 @@ module EstablishTypeDefinitionCores =
                                     warning(Error(FSComp.SR.chkAttributeAliased(attrib.TypeRef.FullName), tycon.Id.idRange))
                         | _ -> ()
 
+                    // Check for attributes in unit-of-measure declarations
+                    // [<Measure>] type x = 1<s>
+                    //                        ^
+                    match stripTyEqns g ty with
+                    | TType_measure tm -> CheckUnitOfMeasureAttributes g tm
+                    | _ -> ()
+
                     checkAttributeAliased ty tycon g.attrib_AutoOpenAttribute
                     checkAttributeAliased ty tycon g.attrib_StructAttribute
 
@@ -3807,11 +3814,11 @@ module EstablishTypeDefinitionCores =
 
             and accInMeasure measureTy acc =
                 match stripUnitEqns measureTy with
-                | Measure.Const tcref when ListSet.contains (===) tcref.Deref tycons ->  
+                | Measure.Const(tyconRef= tcref) when ListSet.contains (===) tcref.Deref tycons ->  
                     (tycon, tcref.Deref) :: acc
-                | Measure.Const tcref when tcref.IsTypeAbbrev ->              
+                | Measure.Const(tyconRef= tcref) when tcref.IsTypeAbbrev ->              
                     accInMeasure (reduceTyconRefAbbrevMeasureable tcref) acc
-                | Measure.Prod (ms1, ms2) -> accInMeasure ms1 (accInMeasure ms2 acc)
+                | Measure.Prod(measure1= ms1; measure2= ms2) -> accInMeasure ms1 (accInMeasure ms2 acc)
                 | Measure.Inv invTy -> accInMeasure invTy acc
                 | _ -> acc
 

src/Compiler/Checking/CheckPatterns.fs

@@ -803,7 +803,7 @@ and TcPatLongIdentLiteral warnOnUpper (cenv: cenv) env vFlags patEnv ty (mLongId
     match vref.LiteralValue with
     | None -> error (Error(FSComp.SR.tcNonLiteralCannotBeUsedInPattern(), m))
     | Some lit ->
-        let _, _, _, vexpty, _, _ = TcVal true cenv env tpenv vref None None mLongId
+        let _, _, _, vexpty, _, _ = TcVal cenv env tpenv vref None None mLongId
         CheckValAccessible mLongId env.AccessRights vref
         CheckFSharpAttributes g vref.Attribs mLongId |> CommitOperationResult
         CheckNoArgsForLiteral args m