/// <summary>
/// Loads all custom attributes From the assembly.
/// </summary>
/// <param name="module">The module to load attributes From.</param>
/// <param name="modOffset">The module offset.</param>
private void LoadCustomAttributes(IMetadataModule module, ModuleOffsets modOffset)
{
IMetadataProvider metadata = module.Metadata;
TokenTypes token, owner = 0, maxAttrs = metadata.GetMaxTokenValue(TokenTypes.CustomAttribute);
CustomAttributeRow car;
List <CustomAttributeRow> attributes = new List <CustomAttributeRow>();
for (token = TokenTypes.CustomAttribute + 1; token <= maxAttrs; token++)
{
metadata.Read(token, out car);
// Do we need to commit generic parameters?
if (owner != car.ParentTableIdx)
{
// Yes, commit them to the last type
if (0 != owner && 0 != attributes.Count)
{
SetAttributes(module, owner, attributes);
attributes.Clear();
}
owner = car.ParentTableIdx;
}
// Save this attribute
attributes.Add(car);
}
// Set the generic parameters of the last type, if we have them
if (0 != attributes.Count)
{
SetAttributes(module, owner, attributes);
}
}
/// <summary>
/// Gets the types From module.
/// </summary>
/// <param name="module">The module.</param>
/// <returns></returns>
ReadOnlyRuntimeTypeListView ITypeSystem.GetTypesFromModule(IMetadataModule module)
{
if (null == module)
{
throw new ArgumentNullException(@"module");
}
// Determine the offsets of the module
ModuleOffsets offsets = GetModuleOffset(module);
// Calculate the number of types defined in this module
int count = ((int)(TokenTypes.RowIndexMask & module.Metadata.GetMaxTokenValue(TokenTypes.TypeDef)) - 1 + 0);
// FIXME: (int)(TokenTypes.RowIndexMask & module.Metadata.GetMaxTokenValue(TokenTypes.TypeSpec)));
return(new ReadOnlyRuntimeTypeListView(offsets.TypeOffset, count));
}
RuntimeMethod ITypeSystem.GetMethod(IMetadataModule scope, TokenTypes token)
{
if (null == scope)
{
throw new ArgumentNullException(@"scope");
}
switch (TokenTypes.TableMask & token)
{
case TokenTypes.MethodDef:
{
ModuleOffsets offsets = GetModuleOffset(scope);
return(_methods[offsets.MethodOffset + (int)(TokenTypes.RowIndexMask & token) - 1]);
}
case TokenTypes.MemberRef:
{
MemberRefRow row;
scope.Metadata.Read(token, out row);
RuntimeType type = this.ResolveTypeRef(scope, row.ClassTableIdx);
string nameString;
scope.Metadata.Read(row.NameStringIdx, out nameString);
MethodSignature sig = (MethodSignature)Signature.FromMemberRefSignatureToken(scope.Metadata, row.SignatureBlobIdx);
foreach (RuntimeMethod method in type.Methods)
{
if (method.Name != nameString)
{
continue;
}
if (!method.Signature.Matches(sig))
{
continue;
}
return(method);
}
throw new MissingMethodException(type.Name, nameString);
}
case TokenTypes.MethodSpec:
throw new NotImplementedException();
default:
throw new NotSupportedException();
}
}
/// <summary>
/// Notifies the type system that a CIL module was loaded.
/// </summary>
/// <param name="module">The loaded module.</param>
void ITypeSystem.AssemblyLoaded(IMetadataModule module)
{
Debug.Assert(null != module && ((null == _moduleOffsets && 0 == module.LoadOrder) || _moduleOffsets.Length == module.LoadOrder));
if (null == module)
{
throw new ArgumentNullException(@"result");
}
if ((null == _moduleOffsets && 0 != module.LoadOrder) || (null != _moduleOffsets && module.LoadOrder < _moduleOffsets.Length))
{
throw new ArgumentException(@"Module is late?");
}
IMetadataProvider md = module.Metadata;
if (module.LoadOrder >= _moduleOffsets.Length)
{
Array.Resize(ref _moduleOffsets, module.LoadOrder + 1);
}
ModuleOffsets modOffset = new ModuleOffsets(
AdjustMetadataSpace(md, TokenTypes.Field, ref _fields),
AdjustMetadataSpace(md, TokenTypes.MethodDef, ref _methods),
AdjustMetadataSpace(md, TokenTypes.Param, ref _parameters),
AdjustMetadataSpace(md, TokenTypes.TypeDef, ref _types)
);
_moduleOffsets[module.LoadOrder] = modOffset;
// Add space for methodspec and typespec members
AdjustMetadataSpace(md, TokenTypes.MethodSpec, ref _methods);
AdjustMetadataSpace(md, TokenTypes.TypeSpec, ref _types);
// Load all types From the assembly into the type array
LoadTypes(module, modOffset);
// LoadTypeSpecs(module, modOffset.TypeOffset);
// LoadMethods(module, modOffset.MethodOffset);
LoadGenerics(module, modOffset.TypeOffset, modOffset.MethodOffset);
//LoadFields(module, modOffset.FieldOffset);
LoadParameters(module, modOffset.ParameterOffset);
LoadCustomAttributes(module, modOffset);
}
RuntimeField ITypeSystem.GetField(IMetadataModule scope, TokenTypes token)
{
if (null == scope)
{
throw new ArgumentNullException(@"scope");
}
if (TokenTypes.Field != (TokenTypes.TableMask & token) && TokenTypes.MemberRef != (TokenTypes.TableMask & token))
{
throw new ArgumentException(@"Invalid field token.");
}
if (TokenTypes.MemberRef == (TokenTypes.TableMask & token))
{
MemberRefRow row;
scope.Metadata.Read(token, out row);
throw new NotImplementedException();
}
ModuleOffsets offsets = GetModuleOffset(scope);
int fieldIndex = (int)(token & TokenTypes.RowIndexMask) - 1;
RuntimeField result = _fields[offsets.FieldOffset + fieldIndex];
return(result);
}
/// <summary>
/// Loads all types From the given metadata module.
/// </summary>
/// <param name="module">The metadata module to load the types From.</param>
/// <param name="moduleOffsets">The offsets into the metadata arrays, of the current module.</param>
private void LoadTypes(IMetadataModule module, ModuleOffsets moduleOffsets)
{
TokenTypes maxTypeDef, maxField, maxMethod, maxLayout, tokenLayout = TokenTypes.ClassLayout + 1;
TypeDefRow typeDefRow, nextTypeDefRow = new TypeDefRow();
ClassLayoutRow layoutRow = new ClassLayoutRow();
IMetadataProvider md = module.Metadata;
int size = 0x0, packing = 0;
int typeOffset = moduleOffsets.TypeOffset;
int methodOffset = moduleOffsets.MethodOffset;
int fieldOffset = moduleOffsets.FieldOffset;
RuntimeType rt;
maxTypeDef = md.GetMaxTokenValue(TokenTypes.TypeDef);
maxLayout = md.GetMaxTokenValue(TokenTypes.ClassLayout);
if (TokenTypes.ClassLayout < maxLayout)
{
md.Read(tokenLayout, out layoutRow);
}
TokenTypes token = TokenTypes.TypeDef + 2;
md.Read(token, out typeDefRow);
do
{
/*
* string name;
* md.Read(typeDefRow.TypeNameIdx, out name);
* Debug.WriteLine(name);
*/
if (token < maxTypeDef)
{
md.Read(token + 1, out nextTypeDefRow);
maxField = nextTypeDefRow.FieldList;
maxMethod = nextTypeDefRow.MethodList;
}
else
{
maxMethod = md.GetMaxTokenValue(TokenTypes.MethodDef) + 1;
maxField = md.GetMaxTokenValue(TokenTypes.Field) + 1;
}
// Is this our layout info?
if ((layoutRow.ParentTypeDefIdx + 1) == token)
{
size = layoutRow.ClassSize;
packing = layoutRow.PackingSize;
tokenLayout++;
if (tokenLayout <= maxLayout)
{
md.Read(tokenLayout, out layoutRow);
}
}
// Create and populate the runtime type
rt = new CilRuntimeType(token, module, ref typeDefRow, maxField, maxMethod, packing, size);
LoadMethods(module, rt, typeDefRow.MethodList, maxMethod, ref methodOffset);
LoadFields(module, rt, typeDefRow.FieldList, maxField, ref fieldOffset);
_types[typeOffset++] = rt;
if (rtCallTypeAttribute == null)
{
if (rt.Name == "InternalCallTypeAttribute" && rt.Namespace == "Mosa.Runtime.Vm")
{
rtCallTypeAttribute = rt;
}
}
packing = size = 0;
typeDefRow = nextTypeDefRow;
}while (token++ < maxTypeDef);
}
