Bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/dotnet.yml

@@ -7,70 +7,25 @@ on:
     branches: [ master ]
 
 jobs:
-  net8:
-
+  build-and-test:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        dotnet-version: ["9.0", "8.0", "7.0", "6.0"]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4.1.0
+      uses: actions/setup-dotnet@v5.1.0
       with:
-        dotnet-version: 8.0.x
+        dotnet-version:  |
+          6.0.x
+          7.0.x
+          8.0.x
+          9.0.x
     - name: Restore dependencies
       run: dotnet restore
     - name: Build
-      run: dotnet build --framework net8.0 --no-restore
+      run: dotnet build --framework net${{ matrix.dotnet-version }} --no-restore
     - name: Test
-      run: dotnet test --framework net8.0 --no-build --verbosity normal
-
-  net7:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Setup .NET
-      uses: actions/[email protected]
-      with:
-        dotnet-version: 7.0.x
-    - name: Restore dependencies
-      run: dotnet restore
-    - name: Build
-      run: dotnet build --framework net7.0 --no-restore
-    - name: Test
-      run: dotnet test --framework net7.0 --no-build --verbosity normal
-
-  net6:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Setup .NET
-      uses: actions/[email protected]
-      with:
-        dotnet-version: 6.0.x
-    - name: Restore dependencies
-      run: dotnet restore
-    - name: Build
-      run: dotnet build --framework net6.0 --no-restore
-    - name: Test
-      run: dotnet test --framework net6.0 --no-build --verbosity normal
-
-  net5:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Setup .NET
-      uses: actions/[email protected]
-      with:
-        dotnet-version: 5.0.x
-    - name: Restore dependencies
-      run: dotnet restore
-    - name: Build
-      run: dotnet build --framework net5.0 --no-restore
-    - name: Test
-      run: dotnet test --framework net5.0 --no-build --verbosity normal
+      run: dotnet test --framework net${{ matrix.dotnet-version }} --no-build --verbosity normal

AssetRipper.Primitives.Tests/AssetRipper.Primitives.Tests.csproj

@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>net35;net40;net48;net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
+		<TargetFrameworks>net35;net40;net48;net5.0;net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
 		<LangVersion>Latest</LangVersion>
 		<Nullable>enable</Nullable>
 

AssetRipper.Primitives.Tests/Utf8StringTests.cs

@@ -33,7 +33,7 @@ public class Utf8StringTests
 	[Test]
 	public void Utf8StringMadeFromUtf8LiteralIsTheSameAsMadeFromConstantString()
 	{
-		Utf8String dataString = "AssetRipperTestString"u8;
+		Utf8String dataString = (Utf8String)"AssetRipperTestString"u8;
 		Utf8String systemString = "AssetRipperTestString";
 		Assert.That(dataString, Is.EqualTo(systemString));
 	}
@@ -41,7 +41,7 @@ public class Utf8StringTests
 	[Test]
 	public void ConcatenationBetweenTwoUtf8StringsWorks()
 	{
-		Utf8String dataString = "AssetRipperTestString"u8;
+		Utf8String dataString = (Utf8String)"AssetRipperTestString"u8;
 		Utf8String systemString = "AssetRipperTestString";
 		Utf8String concatenated = dataString + systemString;
 		Assert.That(concatenated, Is.EqualTo((Utf8String)"AssetRipperTestStringAssetRipperTestString"u8));
@@ -58,10 +58,10 @@ public class Utf8StringTests
 	[Test]
 	public void ConcatenationBetweenFourUtf8StringsWorks()
 	{
-		Utf8String string1 = "hello"u8;
-		Utf8String string2 = " world"u8;
-		Utf8String string3 = "!"u8;
-		Utf8String string4 = ", how are you?"u8;
+		Utf8String string1 = (Utf8String)"hello"u8;
+		Utf8String string2 = (Utf8String)" world"u8;
+		Utf8String string3 = (Utf8String)"!"u8;
+		Utf8String string4 = (Utf8String)", how are you?"u8;
 		Utf8String concatenated = Utf8String.Concat(string1, string2, string3, string4);
 		Assert.That(concatenated, Is.EqualTo((Utf8String)"hello world!, how are you?"u8));
 	}
@@ -81,7 +81,7 @@ public class Utf8StringTests
 	[Test]
 	public void IsNullOrEmptyReturnsFalseForNonEmptyString()
 	{
-		Assert.That(Utf8String.IsNullOrEmpty("AssetRipperTestString"u8), Is.False);
+		Assert.That(Utf8String.IsNullOrEmpty((Utf8String)"AssetRipperTestString"u8), Is.False);
 	}
 }
 #endif

AssetRipper.Primitives/AssetRipper.Primitives.csproj

@@ -1,12 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>net35;net40;net461;netstandard2.0;net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
+		<TargetFrameworks>net35;net40;net461;netstandard2.0;net5.0;net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
 		<LangVersion>Latest</LangVersion>
 		<Nullable>enable</Nullable>
 		<Authors>ds5678</Authors>
 		<Company>AssetRipper</Company>
-		<Version>3.1.4</Version>
+		<Version>3.2.0</Version>
 		<AssemblyVersion>$(Version)</AssemblyVersion>
 		<PackageId>AssetRipper.Primitives</PackageId>
 		<PackageTags>C# assetripper unity unity3d</PackageTags>
@@ -14,18 +14,18 @@
 		<PackageLicenseExpression>MIT</PackageLicenseExpression>
 		<RepositoryType>git</RepositoryType>
 		<PackageProjectUrl>https://github.com/AssetRipper/AssetRipper.Primitives</PackageProjectUrl>
-		<Copyright>Copyright (c) 2022-2024 ds5678</Copyright>
+		<Copyright>Copyright (c) 2022-2025 ds5678</Copyright>
 		<Description>Managed library for primitive types used in AssetRipper.</Description>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
 		<GenerateDocumentationFile>true</GenerateDocumentationFile>
 		<NoWarn>1591</NoWarn>
 	</PropertyGroup>
-	
-	<PropertyGroup Condition=" '$(TargetFramework)' != 'net35' and '$(TargetFramework)' != 'net40' ">
+
+	<PropertyGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">
 		<IsTrimmable>true</IsTrimmable>
 	</PropertyGroup>
 
-	<PropertyGroup Condition=" '$(TargetFramework)' == 'net8.0' ">
+	<PropertyGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
 		<IsAotCompatible>true</IsAotCompatible>
 	</PropertyGroup>
 

AssetRipper.Primitives/UnityVersion.DotNet7.cs

@@ -2,10 +2,24 @@
 using System.Numerics;
 
 namespace AssetRipper.Primitives;
-partial struct UnityVersion : IComparisonOperators<UnityVersion, UnityVersion, bool>, IEqualityOperators<UnityVersion, UnityVersion, bool>, IMinMaxValue<UnityVersion>
+partial struct UnityVersion :
+	IComparisonOperators<UnityVersion, UnityVersion, bool>,
+	IEqualityOperators<UnityVersion, UnityVersion, bool>,
+	IMinMaxValue<UnityVersion>,
+	IParsable<UnityVersion>
 {
 	static UnityVersion IMinMaxValue<UnityVersion>.MaxValue => MaxVersion;
 
 	static UnityVersion IMinMaxValue<UnityVersion>.MinValue => MinVersion;
+
+	static UnityVersion IParsable<UnityVersion>.Parse(string s, IFormatProvider? provider)
+	{
+		return Parse(s);
+	}
+
+	static bool IParsable<UnityVersion>.TryParse(string? s, IFormatProvider? provider, out UnityVersion result)
+	{
+		return TryParse(s, out result, out _);
+	}
 }
 #endif

AssetRipper.Primitives/UnityVersion.Json.cs

@@ -0,0 +1,10 @@
+#if NET5_0_OR_GREATER
+using System.Text.Json.Serialization;
+
+namespace AssetRipper.Primitives;
+
+[JsonConverter(typeof(UnityVersionJsonConverter))]
+partial struct UnityVersion
+{
+}
+#endif

AssetRipper.Primitives/UnityVersion.Parsing.cs

@@ -84,9 +84,9 @@ public readonly partial struct UnityVersion
 	/// <param name="version">The parsed Unity version</param>
 	/// <param name="customEngine">Not null if this version was generated by a custom Unity Engine.</param>
 	/// <returns>True if parsing was successful</returns>
-	public static bool TryParse(string s, out UnityVersion version, out string? customEngine)
+	public static bool TryParse(string? s, out UnityVersion version, out string? customEngine)
 	{
-		if (string.IsNullOrEmpty(s))
+		if (s is null || s.Length is 0)
 		{
 			customEngine = null;
 			version = default;

AssetRipper.Primitives/UnityVersionJsonConverter.cs

@@ -0,0 +1,19 @@
+#if NET5_0_OR_GREATER
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace AssetRipper.Primitives;
+
+public sealed class UnityVersionJsonConverter : JsonConverter<UnityVersion>
+{
+	public override UnityVersion Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+	{
+		return UnityVersion.Parse(reader.GetString() ?? throw new JsonException("String was read as null"));
+	}
+
+	public override void Write(Utf8JsonWriter writer, UnityVersion value, JsonSerializerOptions options)
+	{
+		writer.WriteStringValue(value.ToString());
+	}
+}
+#endif

AssetRipper.Primitives/Utf8String.cs

@@ -11,12 +11,15 @@ namespace AssetRipper.Primitives;
 /// <remarks>
 /// Conversions to and from <see cref="string"/> are handled by <see cref="Encoding.UTF8"/>.
 /// </remarks>
+#if NET5_0_OR_GREATER
+[System.Text.Json.Serialization.JsonConverter(typeof(Utf8StringJsonConverter))]
+#endif
 public sealed class Utf8String :
 #if NET7_0_OR_GREATER
 	System.Numerics.IEqualityOperators<Utf8String?, Utf8String?, bool>,
-    System.Numerics.IEqualityOperators<Utf8String?, string?, bool>,
+	System.Numerics.IEqualityOperators<Utf8String?, string?, bool>,
 #endif
-    IEquatable<Utf8String>
+	IEquatable<Utf8String>
 {
 	private readonly byte[] data;
 	private string? cachedString;
@@ -28,7 +31,7 @@ public sealed class Utf8String :
 	/// </summary>
 	public Utf8String()
 	{
-		data = Array.Empty<byte>();
+		data = [];
 		cachedString = "";
 	}
 
@@ -108,8 +111,10 @@ public sealed class Utf8String :
 		return utf8String?.String;
 	}
 
-	public static implicit operator Utf8String(ReadOnlySpan<byte> data)
+	public static explicit operator Utf8String(ReadOnlySpan<byte> data)
 	{
+		// Explicit conversion because of first class spans
+		// https://github.com/dotnet/roslyn/issues/78314
 		return data.Length == 0 ? Empty : new Utf8String(data);
 	}
 

AssetRipper.Primitives/Utf8StringJsonConverter.cs

@@ -0,0 +1,19 @@
+#if NET5_0_OR_GREATER
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace AssetRipper.Primitives;
+
+public sealed class Utf8StringJsonConverter : JsonConverter<Utf8String>
+{
+	public override Utf8String Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+	{
+		return reader.GetString() ?? throw new JsonException("String was read as null");
+	}
+
+	public override void Write(Utf8JsonWriter writer, Utf8String value, JsonSerializerOptions options)
+	{
+		writer.WriteStringValue(value.ToString());
+	}
+}
+#endif