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
);
}
protected override Assembly Load(AssemblyName assemblyName)
{
return(_loader.Loader.ResolveAssembly(AssemblyIdentity.FromAssemblyReference(assemblyName), _loadDirectoryOpt) ??
Default.LoadFromAssemblyName(assemblyName));
}
