add bootstrap and plugins prototype

CringePlugins/Loader/PluginAssemblyLoadContext.cs

@@ -0,0 +1,38 @@
+using System.Reflection;
+using System.Runtime.Loader;
+using CringeBootstrap.Abstractions;
+
+namespace CringePlugins.Loader;
+
+internal class PluginAssemblyLoadContext : AssemblyLoadContext
+{
+    private readonly ICoreLoadContext _parentContext;
+    private readonly string _entrypointPath;
+    private readonly AssemblyDependencyResolver _dependencyResolver;
+    private Assembly? _assembly;
+
+    internal PluginAssemblyLoadContext(ICoreLoadContext parentContext, string entrypointPath) : base($"Plugin Context {Path.GetFileNameWithoutExtension(entrypointPath)}", true)
+    {
+        _parentContext = parentContext;
+        _entrypointPath = entrypointPath;
+        _dependencyResolver = new(entrypointPath);
+    }
+
+    public Assembly LoadEntrypoint() => _assembly ??= LoadFromAssemblyPath(_entrypointPath);
+
+    protected override Assembly? Load(AssemblyName assemblyName)
+    {
+        if (_dependencyResolver.ResolveAssemblyToPath(assemblyName) is { } path)
+            return LoadFromAssemblyPath(path);
+        
+        return _parentContext.ResolveFromAssemblyName(assemblyName);
+    }
+
+    protected override nint LoadUnmanagedDll(string unmanagedDllName)
+    {
+        if (_dependencyResolver.ResolveUnmanagedDllToPath(unmanagedDllName) is { } path)
+            return LoadUnmanagedDllFromPath(path);
+        
+        return _parentContext.ResolveUnmanagedDll(unmanagedDllName);
+    }
+}