public override ImmutableArray <PortableExecutableReference> ResolveReference(string reference, string baseFilePath, MetadataReferenceProperties properties)
{
// Implement cache to avoid more memory usage (https://github.com/dotnet/roslyn/issues/33304)
var request = new ResolveReferenceRequest
{
reference = reference,
baseFilePath = baseFilePath,
properties = properties
};
if (resolveReferenceCache.TryGetValue(request, out var resolvedReferences))
{
return(resolvedReferences);
}
resolvedReferences = ResolveReferenceWithoutCache(request);
resolveReferenceCache[request] = resolvedReferences;
return(resolvedReferences);
}
ImmutableArray <PortableExecutableReference> ResolveReferenceWithoutCache(ResolveReferenceRequest request)
{
lock (@lock)
{
// System.Console.WriteLine("ResolveReference: " + reference);
var sha256Match = Regex.Match(request.reference, "sha256:([\\d\\w]+)", RegexOptions.IgnoreCase);
if (sha256Match.Success)
{
var hash = Kalmit.CommonConversion.ByteArrayFromStringBase16(sha256Match.Groups[1].Value);
var assembly = getFileFromHashSHA256?.Invoke(hash);
if (assembly == null)
{
return(new ImmutableArray <PortableExecutableReference>());
}
if (!Kalmit.CommonConversion.HashSHA256(assembly).SequenceEqual(hash))
{
return(new ImmutableArray <PortableExecutableReference>());
}
var assemblyMetadata = AssemblyMetadata.CreateFromImage(assembly);
resolvedAssemblies = resolvedAssemblies.Add(assemblyMetadata);
globalResolvedAssemblies.Add((assemblyMetadata, assembly));
return(ImmutableArray.Create(MetadataReference.CreateFromImage(assembly)));
}
}
return
(ScriptMetadataResolver.Default.ResolveReference(
request.reference,
request.baseFilePath,
request.properties));
}