public DmdType Create(CorType type)
{
if (type == null)
{
throw new ArgumentNullException(nameof(type));
}
if (recursionCounter++ > 100)
{
throw new InvalidOperationException();
}
DmdType result;
List <DmdType> types;
switch (type.ElementType)
{
case CorElementType.Void: result = reflectionAppDomain.System_Void; break;
case CorElementType.Boolean: result = reflectionAppDomain.System_Boolean; break;
case CorElementType.Char: result = reflectionAppDomain.System_Char; break;
case CorElementType.I1: result = reflectionAppDomain.System_SByte; break;
case CorElementType.U1: result = reflectionAppDomain.System_Byte; break;
case CorElementType.I2: result = reflectionAppDomain.System_Int16; break;
case CorElementType.U2: result = reflectionAppDomain.System_UInt16; break;
case CorElementType.I4: result = reflectionAppDomain.System_Int32; break;
case CorElementType.U4: result = reflectionAppDomain.System_UInt32; break;
case CorElementType.I8: result = reflectionAppDomain.System_Int64; break;
case CorElementType.U8: result = reflectionAppDomain.System_UInt64; break;
case CorElementType.R4: result = reflectionAppDomain.System_Single; break;
case CorElementType.R8: result = reflectionAppDomain.System_Double; break;
case CorElementType.String: result = reflectionAppDomain.System_String; break;
case CorElementType.TypedByRef: result = reflectionAppDomain.System_TypedReference; break;
case CorElementType.I: result = reflectionAppDomain.System_IntPtr; break;
case CorElementType.U: result = reflectionAppDomain.System_UIntPtr; break;
case CorElementType.Object: result = reflectionAppDomain.System_Object; break;
case CorElementType.Ptr:
result = Create(type.FirstTypeParameter).MakePointerType();
break;
case CorElementType.ByRef:
result = Create(type.FirstTypeParameter).MakeByRefType();
break;
case CorElementType.SZArray:
result = Create(type.FirstTypeParameter).MakeArrayType();
break;
case CorElementType.Array:
result = Create(type.FirstTypeParameter).MakeArrayType((int)type.Rank);
break;
case CorElementType.ValueType:
case CorElementType.Class:
var cl = type.Class ?? throw new InvalidOperationException();
var module = engine.TryGetModule(cl.Module)?.GetReflectionModule() ?? throw new InvalidOperationException();
var reflectionType = module.ResolveType((int)cl.Token, DmdResolveOptions.ThrowOnError);
if (reflectionType.GetGenericArguments().Count != 0)
{
types = GetTypesList();
foreach (var t in type.TypeParameters)
{
types.Add(Create(t));
}
Debug.Assert(types.Count == 0 || reflectionType.GetGenericArguments().Count == types.Count);
if (types.Count != 0)
{
reflectionType = reflectionType.MakeGenericType(types.ToArray());
}
FreeTypesList(ref types);
}
result = reflectionType;
break;
case CorElementType.FnPtr:
DmdType returnType = null;
types = null;
foreach (var t in type.TypeParameters)
{
if ((object)returnType == null)
{
returnType = Create(t);
}
else
{
if (types == null)
{
types = GetTypesList();
}
types.Add(Create(t));
}
}
if ((object)returnType == null)
{
throw new InvalidOperationException();
}
//TODO: Guessing FnPtr calling convention
const DmdSignatureCallingConvention fnPtrCallingConvention = DmdSignatureCallingConvention.C;
//TODO: We're assuming varArgsParameterTypes is empty
result = reflectionAppDomain.MakeFunctionPointerType(fnPtrCallingConvention, 0, returnType, types?.ToArray() ?? Array.Empty <DmdType>(), Array.Empty <DmdType>(), null);
FreeTypesList(ref types);
break;
case CorElementType.GenericInst:
case CorElementType.Var:
case CorElementType.MVar:
case CorElementType.End:
case CorElementType.ValueArray:
case CorElementType.R:
case CorElementType.CModReqd:
case CorElementType.CModOpt:
case CorElementType.Internal:
case CorElementType.Module:
case CorElementType.Sentinel:
case CorElementType.Pinned:
default:
Debug.Fail($"Unsupported element type: {type.ElementType}");
throw new InvalidOperationException();
}
recursionCounter--;
return(result);
}
public override DmdType WithCustomModifiers(IList <DmdCustomModifier> customModifiers) => AppDomain.MakeFunctionPointerType(methodSignature.Flags, methodSignature.GenericParameterCount, methodSignature.ReturnType, methodSignature.GetParameterTypes(), methodSignature.GetVarArgsParameterTypes(), customModifiers);