Upgrade the app to .NET 10 and confirm compilation

[Copilot]

Upgrades BlazorInteractive from .NET 7.0 to .NET 10.

Changes Made

• global.json: Updated SDK version from 7.0.408 to 10.0.102
• All 6 .csproj files: Updated TargetFramework from net7.0 to net10.0
• Package upgrades:
  • Microsoft.AspNetCore.Components.WebAssembly + DevServer: 7.0.20 → 10.0.5
  • Microsoft.Extensions.Http: 7.0.13 → 10.0.5
  • Microsoft.Extensions.Logging / .Abstractions: 8.0.x → 10.0.5
  • Microsoft.CodeAnalysis.CSharp: 4.14.0 → 5.3.0
  • Microsoft.CodeAnalysis.CSharp.Scripting: added at 5.3.0
  • NuGet.Protocol: 6.14.0 → 7.3.0
  • BlazorMonaco: 3.3.0 → 3.4.0
  • Removed Microsoft.Web.LibraryManager.Build (Monaco editor is already served via _content/BlazorMonaco/ in index.html)
• BlazorInteractive.csproj: Added <WasmEnableWebcil>false</WasmEnableWebcil> so assemblies are published as plain PE .dll files (required for MetadataReference.CreateFromImage); <PublishTrimmed>false</PublishTrimmed> retained to preserve Roslyn reflection paths
• EditorComponent.razor: Fixed CS0618 warning — updated obsolete Global.SetTheme(string) to inject IJSRuntime and use the Global.SetTheme(JSRuntime, theme) overload
• BootstrapResources.cs: Added CoreAssembly dictionary property — in .NET 10, System.Private.CoreLib moved to a separate coreAssembly category in the manifest
• BootstrapInfo.cs: Assemblies() now merges both Assembly and CoreAssembly categories; without both, Roslyn throws "Predefined type 'System.Object' is not defined"
• BlazorReferenceFilter.cs: Updated to handle the .NET 10 format — the assembly manifest is now embedded in _framework/dotnet.js between /*json-start*/ and /*json-end*/ markers; falls back to _framework/blazor.boot.json for .NET 8 backward-compatibility
• CSharpCompilationBuilder.cs: Switched from CSharpCompilation.Create to CreateScriptCompilation — Assembly.Location is always empty in a WASM host, so explicit MetadataReference.CreateFromImage(bytes) objects are used instead
• CSharpCompiler.cs: Parses user source with SourceCodeKind.Script to match script compilation mode
• IAssemblyInvoker.cs + AssemblyInvoker.cs: Changed to Task<string?> InvokeAsync(Assembly) — locates the Roslyn-generated <Factory> entry point on Submission#0 via reflection and awaits it; Console.SetOut redirects output to the panel
• Index.razor: Removed the class/namespace wrapper (script compilation handles top-level statements directly); updated invocation to await AssemblyInvoker.InvokeAsync

Testing

• ✅ dotnet build succeeds with 0 errors
• ✅ 19/21 tests pass (2 pre-existing NuGetPackageGetter failures — issue NuGet Packages #19, NotImplementedException)

Original prompt

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This section details on the original issue you should resolve

<issue_title>.NET 10</issue_title>
<issue_description>Upgrade the app to .NET 10.
Make any necessary changes an confirm it compiles.
Update any necessary tests, add any missing.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes .NET 10 #217

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[AlexHedley]

@copilot complete tasks

[Copilot]

@copilot complete tasks

Completed in commit a7420db. Here's a summary of all changes made:

• global.json: Updated SDK from 7.0.408 → 10.0.102
• All 6 .csproj files: Updated TargetFramework from net7.0 → net10.0
• Package upgrades:
  • Microsoft.AspNetCore.Components.WebAssembly + DevServer: 7.0.20 → 10.0.5
  • Microsoft.Extensions.Http: 7.0.13 → 10.0.5
  • Microsoft.Extensions.Logging / .Abstractions: 8.0.x → 10.0.5
  • Microsoft.CodeAnalysis.CSharp: 4.14.0 → 5.3.0
  • NuGet.Protocol: 6.14.0 → 7.3.0
  • BlazorMonaco: 3.3.0 → 3.4.0
  • Removed Microsoft.Web.LibraryManager.Build (Monaco editor is already served via _content/BlazorMonaco/ in index.html)
• EditorComponent.razor: Fixed CS0618 warning — Global.SetTheme(string) (WASM-only, obsolete) updated to inject IJSRuntime and call Global.SetTheme(JSRuntime, theme)

Build succeeds with 0 errors; 19/21 tests pass (2 pre-existing NuGetPackageGetter failures — issue #19).

Warning

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• api.cdnjs.com
  • Triggering command: /usr/share/dotnet/dotnet /usr/share/dotnet/dotnet /usr/share/dotnet/sdk/10.0.102/MSBuild.dll /noautoresponse /nologo /nodemode:1 /nodeReuse:true /low:false (dns block)

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[AlexHedley]

@copilot Update the app see following:

Microsoft.AspNetCore.Components.WebAssembly 10.0.5 and Microsoft.CodeAnalysis.CSharp.Scripting 5.3.0 (Roslyn); sets false (required so assemblies are published as plain PE .dll files readable by MetadataReference.CreateFromImage) and false (preserves Roslyn reflection paths)

Key implementation notes for running Roslyn inside WASM:

Assembly.Location is always empty in a WASM host, so CSharpScript.RunAsync (which internally calls MetadataReference.CreateFromAssemblyInternal) throws a NotSupportedException. The app uses CSharpCompilation.CreateScriptCompilation with explicit MetadataReference.CreateFromImage(bytes) objects instead.
In .NET 10, blazor.boot.json no longer exists — the assembly manifest is now embedded in _framework/dotnet.js between /json-start/ and /json-end/ markers. Additionally, System.Private.CoreLib moved into a separate coreAssembly category (alongside the main assembly category); both must be loaded or Roslyn throws "Predefined type 'System.Object' is not defined" errors. A fallback path for the .NET 8 blazor.boot.json format is retained for backward compatibility.
The emitted IL is loaded with Assembly.Load(bytes) and the script entry point () is invoked via reflection; Console.SetOut redirects standard output to the output panel.

[Copilot]

@copilot Update the app see following:

Microsoft.AspNetCore.Components.WebAssembly 10.0.5 and Microsoft.CodeAnalysis.CSharp.Scripting 5.3.0 (Roslyn); sets false...

Implemented in commit 59b01dc. Here's a summary of all changes made:

BlazorInteractive.csproj — added <WasmEnableWebcil>false</WasmEnableWebcil> so assemblies are published as plain PE .dll files (required for MetadataReference.CreateFromImage)

BlazorInteractive.Compilation.csproj — added Microsoft.CodeAnalysis.CSharp.Scripting 5.3.0; <PublishTrimmed>false</PublishTrimmed> was already present

BootstrapResources.cs — added CoreAssembly dict; System.Private.CoreLib moved to this separate category in .NET 10

BootstrapInfo.cs — Assemblies() now merges both Assembly and CoreAssembly categories so Roslyn can find System.Object

BlazorReferenceFilter.cs — tries _framework/dotnet.js first (extracts JSON between /*json-start*/ and /*json-end*/); falls back to _framework/blazor.boot.json for .NET 8 backward-compatibility

CSharpCompilationBuilder.cs — switched to CSharpCompilation.CreateScriptCompilation (avoids Assembly.Location being empty in WASM)

CSharpCompiler.cs — parses source with SourceCodeKind.Script

IAssemblyInvoker.cs + AssemblyInvoker.cs — async Task<string?> InvokeAsync(Assembly) that locates the Roslyn-generated <Factory> entry point via reflection and awaits it; Console.SetOut redirects output to the panel

Index.razor — removed the class/namespace wrapper (script compilation handles top-level statements directly); updated to await AssemblyInvoker.InvokeAsync

Build: 0 errors. Tests: 19/21 pass (2 pre-existing NuGetPackageGetter — issue #19).