fix(build): support configured collection expressions

src/Directory.Packages.props

@@ -5,26 +5,26 @@
     <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
     <!-- StyleSharp.Analyzers, PerformanceSharp.Analyzers and SecuritySharp.Analyzers ship from the
          same release pipeline and always share a version. -->
-    <RoslynCommonAnalyzersVersion>3.46.0</RoslynCommonAnalyzersVersion>
+    <RoslynCommonAnalyzersVersion>4.0.5</RoslynCommonAnalyzersVersion>
     <AvaloniaVersion>12.1.2</AvaloniaVersion>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.400"/>
+    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.401"/>
   </ItemGroup>
   <ItemGroup>
-    <PackageVersion Include="MinVer" Version="7.0.0"/>
+    <PackageVersion Include="MinVer" Version="8.0.0"/>
     <PackageVersion Include="StyleSharp.Analyzers" Version="$(RoslynCommonAnalyzersVersion)"/>
     <PackageVersion Include="PerformanceSharp.Analyzers" Version="$(RoslynCommonAnalyzersVersion)"/>
     <PackageVersion Include="SecuritySharp.Analyzers" Version="$(RoslynCommonAnalyzersVersion)"/>
     <PackageVersion Include="Roslynator.Analyzers" Version="5.0.0"/>
     <PackageVersion Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="5.6.0"/>
     <PackageVersion Include="PublicApiSharp.Analyzers" Version="1.0.7"/>
-    <PackageVersion Include="SonarAnalyzer.CSharp" Version="10.33.0.1635"/>
+    <PackageVersion Include="SonarAnalyzer.CSharp" Version="10.34.0.3385"/>
   </ItemGroup>
   <!-- Benchmarks + tests -->
   <ItemGroup>
     <PackageVersion Include="BenchmarkDotNet" Version="0.15.8"/>
-    <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.9.0"/>
+    <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.10.0"/>
     <PackageVersion Include="System.Reactive" Version="7.0.0"/>
     <PackageVersion Include="Microsoft.Reactive.Testing" Version="7.0.0"/>
     <PackageVersion Include="System.Reactive.Async" Version="6.0.0-alpha.18"/>
@@ -34,41 +34,41 @@
   <ItemGroup>
     <PackageVersion Include="Avalonia" Version="$(AvaloniaVersion)"/>
     <PackageVersion Include="Avalonia.Headless" Version="$(AvaloniaVersion)"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="8.0.30" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0'))"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="9.0.19" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="10.0.11" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="11.0.0-preview.7.26381.103" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="8.0.30" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0'))"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="9.0.19" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="10.0.11" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="11.0.0-preview.7.26381.103" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.Bcl.TimeProvider" Version="10.0.11"/>
-    <PackageVersion Include="Microsoft.Extensions.Configuration" Version="11.0.0-preview.7.26381.103" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="11.0.0-preview.7.26381.103" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.Extensions.Hosting.Abstractions" Version="11.0.0-preview.7.26381.103" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.Extensions.Logging" Version="11.0.0-preview.7.26381.103" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="11.0.0-preview.7.26381.103" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.Maui.Core" Version="10.0.100" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
-    <PackageVersion Include="Microsoft.Maui.Core" Version="11.0.0-preview.7.26406.9" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="8.0.31" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="9.0.20" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="10.0.12" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components" Version="11.0.0-rc.1.26425.128" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="8.0.31" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="9.0.20" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="10.0.12" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.AspNetCore.Components.Web" Version="11.0.0-rc.1.26425.128" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.Bcl.TimeProvider" Version="10.0.12"/>
+    <PackageVersion Include="Microsoft.Extensions.Configuration" Version="11.0.0-rc.1.26425.128" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="11.0.0-rc.1.26425.128" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.Extensions.Hosting.Abstractions" Version="11.0.0-rc.1.26425.128" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.Extensions.Logging" Version="11.0.0-rc.1.26425.128" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="11.0.0-rc.1.26425.128" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.Maui.Core" Version="10.0.101" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0')) AND !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
+    <PackageVersion Include="Microsoft.Maui.Core" Version="11.0.0-rc.1.26451.6" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))"/>
     <PackageVersion Include="Microsoft.WindowsAppSDK" Version="2.4.0"/>
   </ItemGroup>
   <!-- .NET Framework legs -->
   <ItemGroup>
     <PackageVersion Include="System.ValueTuple" Version="4.6.2"/>
-    <PackageVersion Include="System.Threading.Channels" Version="10.0.11"/>
+    <PackageVersion Include="System.Threading.Channels" Version="10.0.12"/>
     <PackageVersion Include="System.Runtime.CompilerServices.Unsafe" Version="6.1.2"/>
     <PackageVersion Include="System.ComponentModel.Annotations" Version="5.0.0"/>
     <PackageVersion Include="System.Buffers" Version="4.6.1"/>
     <PackageVersion Include="System.Memory" Version="4.6.3"/>
-    <PackageVersion Include="System.Collections.Immutable" Version="10.0.11"/>
+    <PackageVersion Include="System.Collections.Immutable" Version="10.0.12"/>
   </ItemGroup>
   <!-- Test infrastructure. Microsoft.CodeAnalysis.CSharp is deliberately held on the 4.x line: the
        R3 bridge generator has to load in the oldest SDK we still support, and a 5.x reference raises
        the compiler the generator demands of every consumer. Renovate's Roslyn PR is not for us. -->
   <ItemGroup>
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0"/>
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.9.0"/>
-    <PackageVersion Include="TUnit" Version="1.66.8"/>
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.10.0"/>
+    <PackageVersion Include="TUnit" Version="1.66.27"/>
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.11.0"/>
   </ItemGroup>
   <Import Project="$(MSBuildThisFileDirectory)/directory.packages.support.props" Condition="Exists('$(MSBuildThisFileDirectory)/directory.packages.support.props')"/>

src/Primitives.Shared/SignalOperatorMixins.CollectionSignals.cs

@@ -79,7 +79,7 @@ public IDisposable Subscribe(IObserver<IList<T>> observer)
         {
             ArgumentExceptionHelper.ThrowIfNull(observer);
 
-            List<int> values = new(_range.Count);
+            List<int> values = [with(capacity: _range.Count)];
             for (var i = 0; i < _range.Count; i++)
             {
                 values.Add(_range.Start + i);

src/Primitives.Shared/SignalOperatorMixins.StatefulSignals.cs

@@ -330,12 +330,12 @@ private HashSet<T> CreateSeen() =>
 #if NET8_0_OR_GREATER
             (_source is RangeSignal range ? range.Count : 0) switch
             {
-                var capacity when capacity > 0 => new(capacity, _comparer),
+                var capacity when capacity > 0 => [with(capacity, _comparer)],
                 _ when _comparer is null => [],
-                _ => new(_comparer),
+                _ => [with(_comparer)],
             };
 #else
-            new(_comparer);
+            [with(_comparer)];
 #endif
     }
 

src/Primitives.Shared/SignalOperatorParityMixins.AggregateHelpers.cs

@@ -104,7 +104,7 @@ private static int CountDistinctRange(
             Func<T, TKey> keySelector,
             IEqualityComparer<TKey>? comparer)
         {
-            HashSet<TKey> seen = comparer is null ? [] : new(comparer);
+            HashSet<TKey> seen = comparer is null ? [] : [with(comparer)];
             var typedSelector = (Func<int, TKey>)(object)keySelector;
             for (var i = 0; i < range.Count; i++)
             {

src/Primitives.Shared/SignalOperatorParityMixins.AwaitableTerminals.cs

@@ -278,7 +278,7 @@ public Task<IList<T>> CollectListAsync()
 
             if (source is RangeSignal range && typeof(T) == typeof(int))
             {
-                List<int> integers = new(range.Count);
+                List<int> integers = [with(capacity: range.Count)];
                 for (var i = 0; i < range.Count; i++)
                 {
                     integers.Add(range.Start + i);

src/ReactiveUI.Primitives.Async.Core/Operators/ToDictionaryAsync.cs

@@ -148,7 +148,7 @@ private sealed class ToDictionaryTaskWitness<TSource, TKey, TValue>(
         where TKey : notnull
     {
         /// <summary>The dictionary that accumulates key-value pairs from the source sequence.</summary>
-        private readonly Dictionary<TKey, TValue> _map = comparer is null ? new() : new(comparer);
+        private readonly Dictionary<TKey, TValue> _map = comparer is null ? [] : [with(comparer)];
 
         /// <inheritdoc/>
         protected override ValueTask OnNextAsyncCore(TSource value, CancellationToken cancellationToken)

src/ReactiveUI.Primitives.Core/Advanced/DistinctByCountAggregator.cs

@@ -21,7 +21,7 @@ public readonly record struct
     /// <param name="keySelector">The key selector.</param>
     /// <param name="comparer">The key comparer, or <see langword="null"/> for the default comparer.</param>
     public DistinctByCountAggregator(Func<T, TKey> keySelector, IEqualityComparer<TKey>? comparer)
-        : this(keySelector, comparer is null ? [] : new(comparer), 0)
+        : this(keySelector, comparer is null ? [] : [with(comparer)], 0)
     {
     }
 

src/ReactiveUI.Primitives.Core/Advanced/DistinctByLongCountAggregator.cs

@@ -21,7 +21,7 @@ public readonly record struct
     /// <param name="keySelector">The key selector.</param>
     /// <param name="comparer">The key comparer, or <see langword="null"/> for the default comparer.</param>
     public DistinctByLongCountAggregator(Func<T, TKey> keySelector, IEqualityComparer<TKey>? comparer)
-        : this(keySelector, comparer is null ? [] : new(comparer), 0L)
+        : this(keySelector, comparer is null ? [] : [with(comparer)], 0L)
     {
     }
 

src/ReactiveUI.Primitives.Core/Advanced/DistinctByWitness.cs

@@ -35,7 +35,7 @@ public DistinctByWitness(IObserver<T> observer, Func<T, TKey> keySelector, IEqua
     {
         _observer = observer;
         _keySelector = keySelector;
-        _seen = comparer is null ? [] : new(comparer);
+        _seen = comparer is null ? [] : [with(comparer)];
     }
 
     /// <inheritdoc/>

src/tests/ReactiveUI.Primitives.Async.Tests/AsyncBridgeGeneratorContractTests.cs

@@ -253,7 +253,7 @@ private static List<MetadataReference> CreateReferences(bool includeAsyncReferen
     {
         // Signal and StateSignal<> are always referenced on top of the platform assemblies.
         const int SignalReferenceCount = 2;
-        Dictionary<string, string> platformAssemblies = new(StringComparer.OrdinalIgnoreCase);
+        Dictionary<string, string> platformAssemblies = [with(StringComparer.OrdinalIgnoreCase)];
         foreach (var path in AppContext.GetData("TRUSTED_PLATFORM_ASSEMBLIES")!.ToString()!.Split(Path.PathSeparator))
         {
             var name = Path.GetFileName(path);
@@ -263,7 +263,7 @@ private static List<MetadataReference> CreateReferences(bool includeAsyncReferen
             }
         }
 
-        List<MetadataReference> references = new(PlatformReferenceNames.Length + SignalReferenceCount);
+        List<MetadataReference> references = [with(capacity: PlatformReferenceNames.Length + SignalReferenceCount)];
         foreach (var name in PlatformReferenceNames)
         {
             if (platformAssemblies.TryGetValue(name, out var path))

src/tests/ReactiveUI.Primitives.Tests/SignalFactoriesTests.cs

@@ -527,7 +527,8 @@ public async Task RxFactoryAliasesRepeatGenerateUsingIfAndCase()
         chooseThen = false;
         _ = conditionalSource.Subscribe(conditional.Add);
 
-        Dictionary<string, IObservable<int>> cases = new(StringComparer.Ordinal) { ["one"] = Signal.Emit(One) };
+        Dictionary<string, IObservable<int>> cases = [with(StringComparer.Ordinal)];
+        cases["one"] = Signal.Emit(One);
         _ = Signal.Case(static () => "one", cases, Signal.Emit(Two)).Subscribe(selectedCase.Add);
         _ = Signal.Case(static () => "missing", cases, Signal.Emit(Two)).Subscribe(defaultCase.Add);
         _ = Signal.Using(

src/tests/ReactiveUI.Primitives.Tests/SignalOperatorMixinsTests.Deterministic.cs

@@ -165,11 +165,13 @@ public async Task RemainingOperatorFactoryAndObserverFailureBranchesAreDetermini
     }
 
     /// <summary>Verifies optimized coordinator and async enumerable branches cover remaining gaps.</summary>
+    /// <param name="token">The test cancellation token.</param>
     /// <returns>A task representing the asynchronous test.</returns>
     [Test]
-    public async Task OptimizedCoordinatorAndAsyncEnumerableBranchesCoverRemainingGaps()
+    [Timeout(30_000)]
+    public async Task OptimizedCoordinatorAndAsyncEnumerableBranchesCoverRemainingGaps(CancellationToken token)
     {
-        await VerifyAsyncEnumerableShiftAndExpireAsync().ConfigureAwait(false);
+        await VerifyAsyncEnumerableShiftAndExpireAsync(token).ConfigureAwait(false);
         await VerifyRaceSyncLatestAndSwitchBranches();
         await VerifyProbeBranches();
         await VerifyCalmAppendAndForkJoinBranches();
@@ -462,8 +464,9 @@ private static async Task VerifyFlatMapTerminalAndErrorBranches()
     }
 
     /// <summary>Verifies async enumerable subscription, shift timing, and expire timeout branches.</summary>
+    /// <param name="token">The test cancellation token.</param>
     /// <returns>A task representing the asynchronous verification.</returns>
-    private static async Task VerifyAsyncEnumerableShiftAndExpireAsync()
+    private static async Task VerifyAsyncEnumerableShiftAndExpireAsync(CancellationToken token)
     {
         _ = Assert.Throws<ArgumentNullException>(static () => Signal.FromAsyncEnumerable(AsyncValues(One)).Subscribe(null!));
         List<int> asyncValues = [];
@@ -473,7 +476,7 @@ private static async Task VerifyAsyncEnumerableShiftAndExpireAsync()
             asyncValues.Add,
             ex => asyncCompleted.TrySetException(ex),
             () => asyncCompleted.TrySetResult(null));
-        await asyncCompleted.Task.WaitAsync(TimeSpan.FromSeconds(Five)).ConfigureAwait(false);
+        await asyncCompleted.Task.WaitAsync(token).ConfigureAwait(false);
         int[] expectedAsyncValues = [0, One, Two];
         await Assert.That(asyncValues.SequenceEqual(expectedAsyncValues)).IsTrue();
         var exact = await Signal.FromAsyncEnumerable(AsyncValues(Sixteen)).CollectArrayAsync().ConfigureAwait(false);