DmdType CreateTypeSig(IList <TSpec> tspecs, DmdType currentType)
{
foreach (var tspec in tspecs)
{
switch (tspec.etype)
{
case DMD.ElementType.SZArray:
currentType = currentType.MakeArrayType();
break;
case DMD.ElementType.Array:
var arraySpec = (ArraySpec)tspec;
currentType = currentType.MakeArrayType(arraySpec.rank, arraySpec.sizes, arraySpec.lowerBounds);
break;
case DMD.ElementType.GenericInst:
var ginstSpec = (GenericInstSpec)tspec;
currentType = currentType.MakeGenericType(ginstSpec.args.ToArray());
break;
case DMD.ElementType.ByRef:
currentType = currentType.MakeByRefType();
break;
case DMD.ElementType.Ptr:
currentType = currentType.MakePointerType();
break;
default:
Verify(false, "Unknown TSpec");
break;
}
}
return(currentType);
}
static DmdConstructorInfo GetConstructor(DmdType proxyType, DmdType targetType)
{
if ((object)proxyType == null)
{
return(null);
}
if (proxyType.IsConstructedGenericType)
{
return(null);
}
var proxyTypeGenericArgs = proxyType.GetGenericArguments();
var targetTypeGenericArgs = targetType.GetGenericArguments();
if (proxyTypeGenericArgs.Count != targetTypeGenericArgs.Count)
{
return(null);
}
if (targetTypeGenericArgs.Count != 0)
{
proxyType = proxyType.MakeGenericType(targetTypeGenericArgs);
}
var ctors = proxyType.GetConstructors(DmdBindingFlags.Public | DmdBindingFlags.NonPublic | DmdBindingFlags.Instance);
foreach (var ctor in ctors)
{
var types = ctor.GetMethodSignature().GetParameterTypes();
if (types.Count != 1)
{
continue;
}
if (!types[0].IsAssignableFrom(targetType))
{
continue;
}
return(ctor);
}
return(null);
}