public static AssemblyLoaderImpl Create(InteractiveAssemblyLoader loader)
{
if (CoreClrShim.AssemblyLoadContext.Type != null)
{
return CreateCoreImpl(loader);
}
else
{
return new DesktopAssemblyLoaderImpl(loader);
}
}
internal LoadContext(InteractiveAssemblyLoader loader, string loadDirectoryOpt)
{
Debug.Assert(loader != null);
_loader = loader;
_loadDirectoryOpt = loadDirectoryOpt;
// CoreCLR resolves assemblies in steps:
//
// 1) Call AssemblyLoadContext.Load -- our context returns null
// 2) TPA list
// 3) Default.Resolving event
// 4) AssemblyLoadContext.Resolving event -- hooked below
//
// What we want is to let the default context load assemblies it knows about (this includes already loaded assemblies,
// assemblies in AppPath, platform assemblies, assemblies explciitly resolved by the App by hooking Default.Resolving, etc.).
// Only if the assembly can't be resolved that way, the interactive resolver steps in.
//
// This order is necessary to avoid loading assemblies twice (by the host App and by interactive loader).
Resolving += (_, assemblyName) =>
_loader.ResolveAssembly(AssemblyIdentity.FromAssemblyReference(assemblyName), _loadDirectoryOpt);
}
internal LoadContext(InteractiveAssemblyLoader loader, string loadDirectoryOpt)
{
Debug.Assert(loader != null);
_loader = loader;
_loadDirectoryOpt = loadDirectoryOpt;
// CoreCLR resolves assemblies in steps:
//
// 1) Call AssemblyLoadContext.Load -- our context returns null
// 2) TPA list
// 3) Default.Resolving event
// 4) AssemblyLoadContext.Resolving event -- hooked below
//
// What we want is to let the default context load assemblies it knows about (this includes already loaded assemblies,
// assemblies in AppPath, platform assemblies, assemblies explciitly resolved by the App by hooking Default.Resolving, etc.).
// Only if the assembly can't be resolved that way, the interactive resolver steps in.
//
// This order is necessary to avoid loading assemblies twice (by the host App and by interactive loader).
Resolving += (_, assemblyName) =>
_loader.ResolveAssembly(AssemblyIdentity.FromAssemblyReference(assemblyName), _loadDirectoryOpt);
}
internal CoreAssemblyLoaderImpl(InteractiveAssemblyLoader loader)
: base(loader)
{
_inMemoryAssemblyContext = new LoadContext(Loader, null);
}
public DesktopAssemblyLoaderImpl(InteractiveAssemblyLoader loader)
: base(loader)
{
_assemblyResolveHandlerOpt = loader.ResolveAssembly;
CorLightup.Desktop.AddAssemblyResolveHandler(_assemblyResolveHandlerOpt);
}
public async Task MissingRefrencesAutoResolution()
{
var portableLib = CSharpCompilation.Create(
"PortableLib",
new[] { SyntaxFactory.ParseSyntaxTree("public class C {}") },
new[] { SystemRuntimePP7Ref },
new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
var portableLibRef = portableLib.ToMetadataReference();
var loader = new InteractiveAssemblyLoader();
loader.RegisterDependency(Assembly.Load(portableLib.EmitToArray().ToArray()));
var s0 = await CSharpScript.Create("new C()", options: ScriptOptions.Default.AddReferences(portableLibRef), assemblyLoader: loader).RunAsync();
var c0 = s0.Script.GetCompilation();
// includes corlib, host type assembly by default:
AssertEx.Equal(new[]
{
typeof(object).GetTypeInfo().Assembly.Location,
"PortableLib"
}, c0.ExternalReferences.SelectAsArray(m => m.Display));
// System.Runtime, 4.0.0.0 depends on all the assemblies below:
AssertEx.Equal(new[]
{
"mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
"PortableLib, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null",
"System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a",
"System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
"System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
"System.ComponentModel.Composition, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
"System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a",
"System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
"System.Data.SqlXml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
"System.Security, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a",
"System.Numerics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
}, c0.GetBoundReferenceManager().GetReferencedAssemblies().Select(a => a.Value.Identity.GetDisplayName()));
}
public DesktopAssemblyLoaderImpl(InteractiveAssemblyLoader loader) : base(loader)
{
_assemblyResolveHandlerOpt = loader.ResolveAssembly;
CoreLightup.Desktop.AddAssemblyResolveHandler(_assemblyResolveHandlerOpt);
}
private static AssemblyLoaderImpl CreateCoreImpl(InteractiveAssemblyLoader loader)
{
return new CoreAssemblyLoaderImpl(loader);
}
protected AssemblyLoaderImpl(InteractiveAssemblyLoader loader)
{
Loader = loader;
}
internal CoreAssemblyLoaderImpl(InteractiveAssemblyLoader loader)
: base(loader)
{
_inMemoryAssemblyContext = new LoadContext(Loader, null);
}
public abstract Script <T> CreateScript <T>(
string code,
ScriptOptions options,
Type globalsTypeOpt,
InteractiveAssemblyLoader assemblyLoader
);
private static AssemblyLoaderImpl CreateCoreImpl(InteractiveAssemblyLoader loader)
{
return(new CoreAssemblyLoaderImpl(loader));
}
protected AssemblyLoaderImpl(InteractiveAssemblyLoader loader)
{
Loader = loader;
}
