private void InitializeTypeForwarder(ForwarderKey key, TypeForwarder record)
{
Cts.Ecma.EcmaModule module = key.Module;
Ecma.MetadataReader reader = module.MetadataReader;
Ecma.ExportedType exportedType = reader.GetExportedType(key.ExportedType);
record.Name = HandleString(reader.GetString(exportedType.Name));
switch (exportedType.Implementation.Kind)
{
case Ecma.HandleKind.AssemblyReference:
{
string ns = reader.GetString(exportedType.Namespace);
NamespaceDefinition namespaceDefinition = HandleNamespaceDefinition(module, ns);
Ecma.AssemblyReference assemblyRef = reader.GetAssemblyReference((Ecma.AssemblyReferenceHandle)exportedType.Implementation);
AssemblyName refName = new AssemblyName
{
ContentType = (AssemblyContentType)((int)(assemblyRef.Flags & AssemblyFlags.ContentTypeMask) >> 9),
Flags = (AssemblyNameFlags)(assemblyRef.Flags & ~AssemblyFlags.ContentTypeMask),
CultureName = reader.GetString(assemblyRef.Culture),
Name = reader.GetString(assemblyRef.Name),
Version = assemblyRef.Version,
};
if ((assemblyRef.Flags & AssemblyFlags.PublicKey) != 0)
{
refName.SetPublicKey(reader.GetBlobBytes(assemblyRef.PublicKeyOrToken));
}
else
{
refName.SetPublicKeyToken(reader.GetBlobBytes(assemblyRef.PublicKeyOrToken));
}
record.Scope = HandleScopeReference(refName);
namespaceDefinition.TypeForwarders.Add(record);
}
break;
case Ecma.HandleKind.ExportedType:
{
TypeForwarder scope = HandleTypeForwarder(module, (Ecma.ExportedTypeHandle)exportedType.Implementation);
record.Scope = scope.Scope;
scope.NestedTypes.Add(record);
}
break;
default:
throw new BadImageFormatException();
}
}
internal sealed override RuntimeTypeInfo UncachedGetTypeCoreCaseSensitive(string fullName)
{
string[] parts = fullName.Split('.');
int numNamespaceParts = parts.Length - 1;
string[] namespaceParts = new string[numNamespaceParts];
for (int i = 0; i < numNamespaceParts; i++)
{
namespaceParts[numNamespaceParts - i - 1] = parts[i];
}
string name = parts[numNamespaceParts];
foreach (QScopeDefinition scopeDefinition in AllScopes)
{
MetadataReader reader = scopeDefinition.Reader;
ScopeDefinitionHandle scopeDefinitionHandle = scopeDefinition.Handle;
NamespaceDefinition namespaceDefinition;
if (!TryResolveNamespaceDefinitionCaseSensitive(reader, namespaceParts, scopeDefinitionHandle, out namespaceDefinition))
{
continue;
}
// We've successfully drilled down the namespace chain. Now look for a top-level type matching the type name.
TypeDefinitionHandleCollection candidateTypes = namespaceDefinition.TypeDefinitions;
foreach (TypeDefinitionHandle candidateType in candidateTypes)
{
TypeDefinition typeDefinition = candidateType.GetTypeDefinition(reader);
if (typeDefinition.Name.StringEquals(name, reader))
{
return(candidateType.ResolveTypeDefinition(reader));
}
}
// No match found in this assembly - see if there's a matching type forwarder.
TypeForwarderHandleCollection candidateTypeForwarders = namespaceDefinition.TypeForwarders;
foreach (TypeForwarderHandle typeForwarderHandle in candidateTypeForwarders)
{
TypeForwarder typeForwarder = typeForwarderHandle.GetTypeForwarder(reader);
if (typeForwarder.Name.StringEquals(name, reader))
{
RuntimeAssemblyName redirectedAssemblyName = typeForwarder.Scope.ToRuntimeAssemblyName(reader);
RuntimeAssemblyInfo redirectedAssembly = RuntimeAssemblyInfo.GetRuntimeAssemblyIfExists(redirectedAssemblyName);
if (redirectedAssembly == null)
{
return(null);
}
return(redirectedAssembly.GetTypeCoreCaseSensitive(fullName));
}
}
}
return(null);
}
private TypeForwarder HandleTypeForwarder(Cts.Ecma.EcmaModule module, Ecma.ExportedType exportedType)
{
Ecma.MetadataReader reader = module.MetadataReader;
string name = reader.GetString(exportedType.Name);
TypeForwarder result;
switch (exportedType.Implementation.Kind)
{
case Ecma.HandleKind.AssemblyReference:
{
string ns = reader.GetString(exportedType.Namespace);
NamespaceDefinition namespaceDefinition = HandleNamespaceDefinition(module, ns);
Ecma.AssemblyReference assemblyRef = reader.GetAssemblyReference((Ecma.AssemblyReferenceHandle)exportedType.Implementation);
AssemblyName refName = new AssemblyName
{
ContentType = (AssemblyContentType)((int)(assemblyRef.Flags & AssemblyFlags.ContentTypeMask) >> 9),
Flags = (AssemblyNameFlags)(assemblyRef.Flags & ~AssemblyFlags.ContentTypeMask),
CultureName = reader.GetString(assemblyRef.Culture),
Name = reader.GetString(assemblyRef.Name),
Version = assemblyRef.Version,
};
result = new TypeForwarder
{
Name = HandleString(name),
Scope = HandleScopeReference(refName),
};
namespaceDefinition.TypeForwarders.Add(result);
}
break;
case Ecma.HandleKind.ExportedType:
{
TypeForwarder scope = HandleTypeForwarder(module, reader.GetExportedType((Ecma.ExportedTypeHandle)exportedType.Implementation));
result = new TypeForwarder
{
Name = HandleString(name),
Scope = scope.Scope,
};
scope.NestedTypes.Add(result);
}
break;
default:
throw new BadImageFormatException();
}
return(result);
}
private Exception UncachedTryResolveCaseSensitive(ReflectionDomain reflectionDomain, RuntimeAssembly currentAssembly, out RuntimeType result)
{
result = null;
foreach (QScopeDefinition scopeDefinition in currentAssembly.AllScopes)
{
MetadataReader reader = scopeDefinition.Reader;
ScopeDefinitionHandle scopeDefinitionHandle = scopeDefinition.Handle;
NamespaceDefinition namespaceDefinition;
if (!TryResolveNamespaceDefinitionCaseSensitive(reader, scopeDefinitionHandle, out namespaceDefinition))
{
continue;
}
// We've successfully drilled down the namespace chain. Now look for a top-level type matching the type name.
IEnumerable <TypeDefinitionHandle> candidateTypes = namespaceDefinition.TypeDefinitions;
foreach (TypeDefinitionHandle candidateType in candidateTypes)
{
TypeDefinition typeDefinition = candidateType.GetTypeDefinition(reader);
if (typeDefinition.Name.StringEquals(_name, reader))
{
result = reflectionDomain.ResolveTypeDefinition(reader, candidateType);
return(null);
}
}
// No match found in this assembly - see if there's a matching type forwarder.
IEnumerable <TypeForwarderHandle> candidateTypeForwarders = namespaceDefinition.TypeForwarders;
foreach (TypeForwarderHandle typeForwarderHandle in candidateTypeForwarders)
{
TypeForwarder typeForwarder = typeForwarderHandle.GetTypeForwarder(reader);
if (typeForwarder.Name.StringEquals(_name, reader))
{
RuntimeAssemblyName redirectedAssemblyName = typeForwarder.Scope.ToRuntimeAssemblyName(reader);
AssemblyQualifiedTypeName redirectedTypeName = new AssemblyQualifiedTypeName(this, redirectedAssemblyName);
return(redirectedTypeName.TryResolve(reflectionDomain, null, /*ignoreCase: */ false, out result));
}
}
}
{
String typeName = this.ToString();
String message = SR.Format(SR.TypeLoad_TypeNotFound, typeName, currentAssembly.FullName);
return(ReflectionCoreNonPortable.CreateTypeLoadException(message, typeName));
}
}
private Exception TryResolveCaseInsensitive(ReflectionDomain reflectionDomain, RuntimeAssembly currentAssembly, out RuntimeType result)
{
String fullName = this.ToString().ToLower();
LowLevelDictionary <String, QHandle> dict = GetCaseInsensitiveTypeDictionary(currentAssembly);
QHandle qualifiedHandle;
if (!dict.TryGetValue(fullName, out qualifiedHandle))
{
result = null;
return(new TypeLoadException(SR.Format(SR.TypeLoad_TypeNotFound, this.ToString(), currentAssembly.FullName)));
}
MetadataReader reader = qualifiedHandle.Reader;
Handle typeDefOrForwarderHandle = qualifiedHandle.Handle;
HandleType handleType = typeDefOrForwarderHandle.HandleType;
switch (handleType)
{
case HandleType.TypeDefinition:
{
TypeDefinitionHandle typeDefinitionHandle = typeDefOrForwarderHandle.ToTypeDefinitionHandle(reader);
result = reflectionDomain.ResolveTypeDefinition(reader, typeDefinitionHandle);
return(null);
}
case HandleType.TypeForwarder:
{
TypeForwarder typeForwarder = typeDefOrForwarderHandle.ToTypeForwarderHandle(reader).GetTypeForwarder(reader);
ScopeReferenceHandle destinationScope = typeForwarder.Scope;
RuntimeAssemblyName destinationAssemblyName = destinationScope.ToRuntimeAssemblyName(reader);
RuntimeAssembly destinationAssembly;
Exception exception = RuntimeAssembly.TryGetRuntimeAssembly(reflectionDomain, destinationAssemblyName, out destinationAssembly);
if (exception != null)
{
result = null;
return(exception);
}
return(TryResolveCaseInsensitive(reflectionDomain, destinationAssembly, out result));
}
default:
throw new InvalidOperationException();
}
}
private MetadataType ResolveExportedType(TypeForwarderHandle handle)
{
TypeForwarder typeForwarder = _metadataReader.GetTypeForwarder(handle);
var module = GetModule(typeForwarder.Scope);
string fullname = _metadataReader.GetString(typeForwarder.Name);
int lastDotIndex = fullname.LastIndexOf('.');
string nameSpace = null;
string name = fullname;
if (lastDotIndex != -1)
{
nameSpace = fullname.Substring(0, lastDotIndex);
name = fullname.Substring(lastDotIndex + 1);
}
return(module.GetType(nameSpace, name));
}
internal sealed override RuntimeTypeInfo GetTypeCoreCaseInsensitive(string fullName)
{
LowLevelDictionary <string, QHandle> dict = CaseInsensitiveTypeDictionary;
QHandle qualifiedHandle;
if (!dict.TryGetValue(fullName.ToLowerInvariant(), out qualifiedHandle))
{
return(null);
}
MetadataReader reader = qualifiedHandle.Reader;
Handle typeDefOrForwarderHandle = qualifiedHandle.Handle;
HandleType handleType = typeDefOrForwarderHandle.HandleType;
switch (handleType)
{
case HandleType.TypeDefinition:
{
TypeDefinitionHandle typeDefinitionHandle = typeDefOrForwarderHandle.ToTypeDefinitionHandle(reader);
return(typeDefinitionHandle.ResolveTypeDefinition(reader));
}
case HandleType.TypeForwarder:
{
TypeForwarder typeForwarder = typeDefOrForwarderHandle.ToTypeForwarderHandle(reader).GetTypeForwarder(reader);
ScopeReferenceHandle destinationScope = typeForwarder.Scope;
RuntimeAssemblyName destinationAssemblyName = destinationScope.ToRuntimeAssemblyName(reader);
RuntimeAssemblyInfo destinationAssembly = RuntimeAssemblyInfo.GetRuntimeAssemblyIfExists(destinationAssemblyName);
if (destinationAssembly == null)
{
return(null);
}
return(destinationAssembly.GetTypeCoreCaseInsensitive(fullName));
}
default:
throw new InvalidOperationException();
}
}
public static RuntimeIshtarModule Read(AppVault vault, byte[] arr, IReadOnlyList <VeinModule> deps, Func <string, Version, VeinModule> resolver)
{
var module = new RuntimeIshtarModule(vault);
using var mem = new MemoryStream(arr);
using var reader = new BinaryReader(mem);
module.Deps.AddRange(deps);
var idx = reader.ReadInt32(); // name index
var vdx = reader.ReadInt32(); // version index
var ilVersion = reader.ReadInt32();
if (ilVersion != OpCodes.SetVersion)
{
var exp = new ILCompatibleException(ilVersion, OpCodes.SetVersion);
VM.FastFail(WNE.ASSEMBLY_COULD_NOT_LOAD, $"Unable to load assembly: '{exp.Message}'.", sys_frame);
VM.ValidateLastError();
return(null);
}
// read strings table
foreach (var _ in..reader.ReadInt32())
{
var key = reader.ReadInt32();
var value = reader.ReadIshtarString();
module.strings_table.Add(key, value);
}
// read types table
foreach (var _ in..reader.ReadInt32())
{
var key = reader.ReadInt32();
var asmName = reader.ReadIshtarString();
var ns = reader.ReadIshtarString();
var name = reader.ReadIshtarString();
module.types_table.Add(key, new QualityTypeName(asmName, name, ns));
}
// read fields table
foreach (var _ in..reader.ReadInt32())
{
var key = reader.ReadInt32();
var name = reader.ReadIshtarString();
var clazz = reader.ReadIshtarString();
module.fields_table.Add(key, new FieldName(name, clazz));
}
// read deps refs
foreach (var _ in..reader.ReadInt32())
{
var name = reader.ReadIshtarString();
var ver = Version.Parse(reader.ReadIshtarString());
if (module.Deps.Any(x => x.Version.Equals(ver) && x.Name.Equals(name)))
{
continue;
}
var dep = resolver(name, ver);
module.Deps.Add(dep);
}
// read class storage
foreach (var _ in..reader.ReadInt32())
{
var body = reader.ReadBytes(reader.ReadInt32());
var @class = DecodeClass(body, module);
module.class_table.Add(@class);
if (@class.IsSpecial)
{
if (VeinCore.All.Any(x => x.FullName == @class.FullName))
{
TypeForwarder.Indicate(@class);
}
}
}
// restore unresolved types
foreach (var @class in module.class_table)
{
for (var index = 0; index < @class.Parents.Count; index++)
{
var parent = @class.Parents[index];
if (parent is not UnresolvedVeinClass)
{
continue;
}
@class.Parents[index] =
parent.FullName != @class.FullName
? module.FindType(parent.FullName, true)
: null;
}
}
// restore unresolved types
foreach (var @class in module.class_table)
{
foreach (var method in @class.Methods)
{
if (method.ReturnType is not UnresolvedVeinClass)
{
continue;
}
method.ReturnType = module.FindType(method.ReturnType.FullName, true);
}
foreach (var method in @class.Methods)
{
foreach (var argument in method.Arguments)
{
if (argument.Type is not UnresolvedVeinClass)
{
continue;
}
argument.Type = module.FindType(argument.Type.FullName, true);
}
}
foreach (var field in @class.Fields)
{
if (field.FieldType is not UnresolvedVeinClass)
{
continue;
}
field.FieldType = module.FindType(field.FieldType.FullName, true);
}
}
var const_body_len = reader.ReadInt32();
var const_body = reader.ReadBytes(const_body_len);
module.const_table = const_body.ToConstStorage();
module.Name = module.GetConstStringByIndex(idx);
module.Version = Version.Parse(module.GetConstStringByIndex(vdx));
module.aspects.AddRange(Aspect.Deconstruct(module.const_table.storage));
module.SetupBootstraper(vault);
DistributionAspects(module);
ValidateRuntimeTokens(module);
LinkFFIMethods(module);
InitVTables(module);
return(module);
}
