internal CoreTypes(MetadataLoadContext loader, string?coreAssemblyName)
{
int numCoreTypes = (int)CoreType.NumCoreTypes;
RoType?[] coreTypes = new RoType[numCoreTypes];
Exception?[] exceptions = new Exception[numCoreTypes];
RoAssembly? coreAssembly = loader.TryGetCoreAssembly(coreAssemblyName, out Exception? e);
if (coreAssembly == null)
{
// If the core assembly was not found, don't continue.
throw e !;
}
else
{
for (int i = 0; i < numCoreTypes; i++)
{
((CoreType)i).GetFullName(out byte[] ns, out byte[] name);
RoType?type = coreAssembly.GetTypeCore(ns, name, ignoreCase: false, out e);
coreTypes[i] = type;
if (type == null)
{
exceptions[i] = e;
}
}
}
_coreTypes = coreTypes;
_exceptions = exceptions;
}
/// <summary>
/// Returns a lazily created and cached Type instance corresponding to the indicated core type. This method throws
/// if the core assembly name wasn't supplied, the core assembly could not be loaded for some reason or if the specified
/// type does not exist in the core assembly.
/// </summary>
internal RoType GetCoreType(CoreType coreType)
{
CoreTypes coreTypes = GetAllFoundCoreTypes();
RoType t = TryGetCoreType(coreType);
return(t ?? throw coreTypes.GetException(coreType));
}
protected internal sealed override RoType ComputeEnumUnderlyingType()
{
//
// This performs the functional equivalent of the base Type GetEnumUnderlyingType without going through all the BindingFlag lookup overhead.
//
if (!IsEnum)
{
throw new ArgumentException(SR.Arg_MustBeEnum);
}
MetadataReader reader = Reader;
TypeContext typeContext = Instantiation.ToTypeContext();
RoType underlyingType = null;
foreach (FieldDefinitionHandle handle in TypeDefinition.GetFields())
{
FieldDefinition fd = handle.GetFieldDefinition(reader);
if ((fd.Attributes & FieldAttributes.Static) != 0)
{
continue;
}
if (underlyingType != null)
{
throw new ArgumentException(SR.Argument_InvalidEnum);
}
underlyingType = fd.DecodeSignature(GetEcmaModule(), typeContext);
}
if (underlyingType == null)
{
throw new ArgumentException(SR.Argument_InvalidEnum);
}
return(underlyingType);
}
private RoType[] ComputeGenericTypeParameters()
{
EcmaModule module = GetEcmaModule();
GenericParameterHandleCollection gps = TypeDefinition.GetGenericParameters();
if (gps.Count == 0)
{
return(Array.Empty <RoType>());
}
RoType[] genericParameters = new RoType[gps.Count];
foreach (GenericParameterHandle h in gps)
{
RoType gp = h.ResolveGenericParameter(module);
genericParameters[gp.GenericParameterPosition] = gp;
}
return(genericParameters);
}
public RoType[] ComputeGenericArgumentsOrParameters()
{
GenericParameterHandleCollection gphs = MethodDefinition.GetGenericParameters();
int count = gphs.Count;
if (count == 0)
{
return(Array.Empty <RoType>());
}
RoType[] gps = new RoType[count];
foreach (GenericParameterHandle gph in gphs)
{
RoType gp = gph.ResolveGenericParameter(_module);
gps[gp.GenericParameterPosition] = gp;
}
return(gps);
}
protected sealed override RoType[] ComputeGenericParameterConstraints()
{
MetadataReader reader = Reader;
GenericParameterConstraintHandleCollection handles = GenericParameter.GetConstraints();
int count = handles.Count;
if (count == 0)
{
return(Array.Empty <RoType>());
}
RoType[] constraints = new RoType[count];
int index = 0;
foreach (GenericParameterConstraintHandle h in handles)
{
RoType constraint = h.GetGenericParameterConstraint(reader).Type.ResolveTypeDefRefOrSpec(GetEcmaModule(), TypeContext);
constraints[index++] = constraint;
}
return(constraints);
}
public sealed override MethodInfo GetGenericMethodDefinition() => IsGenericMethodDefinition ? this : throw new InvalidOperationException(); // Very uninformative but compatible exception
public sealed override MethodInfo MakeGenericMethod(params Type[] typeArguments)
{
if (typeArguments == null)
{
throw new ArgumentNullException(nameof(typeArguments));
}
if (!IsGenericMethodDefinition)
{
throw new InvalidOperationException(SR.Format(SR.Arg_NotGenericMethodDefinition, this));
}
int count = typeArguments.Length;
RoType[] roTypeArguments = new RoType[count];
for (int i = 0; i < count; i++)
{
Type typeArgument = typeArguments[i];
if (typeArgument == null)
{
throw new ArgumentNullException();
}
if (!(typeArgument is RoType roTypeArgument && roTypeArgument.Loader == Loader))
{
throw new ArgumentException(SR.Format(SR.MakeGenericType_NotLoadedByMetadataLoadContext, typeArgument));
}
roTypeArguments[i] = roTypeArgument;
}
if (count != GetGenericTypeParametersNoCopy().Length)
{
throw new ArgumentException(SR.Argument_GenericArgsCount, nameof(typeArguments));
}
return(new RoConstructedGenericMethod(this, roTypeArguments));
}
private Type[] GetCustomModifiers(bool isRequired)
{
RoType type = FieldDefinition.DecodeSignature(new EcmaModifiedTypeProvider(_module), TypeContext) !;
return(type.ExtractCustomModifiers(isRequired));
}
public sealed override RoType GetPinnedType(RoType elementType) => new RoPinnedType(elementType);
public sealed override RoType GetModifiedType(RoType modifier, RoType unmodifiedType, bool isRequired) => unmodifiedType;
public sealed override RoType GetPinnedType(RoType elementType) => elementType;
public sealed override RoType GetModifiedType(RoType modifier, RoType unmodifiedType, bool isRequired) => new RoModifiedType(modifier.SkipTypeWrappers(), unmodifiedType, isRequired);
public static RoPointerType GetUniquePointerType(this RoType elementType) => elementType.GetRoModule().GetUniquePointerType(elementType);
public static RoByRefType GetUniqueByRefType(this RoType elementType) => elementType.GetRoModule().GetUniqueByRefType(elementType);
public static RoArrayType GetUniqueArrayType(this RoType elementType, int rank) => elementType.GetRoModule().GetUniqueArrayType(elementType, rank);
internal RoPinnedType(RoType unmodifiedType)
: base(unmodifiedType)
{
}