/// <summary>
/// Represents the described multi-dimensional array as array of arrays. Only applicable to array types.
/// </summary>
public TypeDescriptor[] MakeRank1Types()
{
if (Rank == 0)
{
throw new InvalidOperationException("This operation is possible for types with Rank >= 1");
}
if (Rank == 1)
{
return new TypeDescriptor[] { this }
}
;
if (!CILType.IsArray)
{
throw new InvalidOperationException("This operation is possible for arrays");
}
TypeDescriptor[] result = new TypeDescriptor[Rank];
Type innerType = CILType.GetElementType();
TypeDescriptor tdElem = Element0Type;
for (int i = result.Length - 1; i >= 0; i--)
{
innerType = innerType.MakeArrayType();
result[i] = new TypeDescriptor()
{
_sample = this._sample,
CILType = innerType,
HasIntrinsicTypeOverride = false,
TypeParams = new object[] { TypeParams[i] },
Constraints = this.Constraints == null ? null : new Range[] { Constraints[i] },
IsArtificial = true,
IsUnconstrained = false,
Element0Type = tdElem
};
tdElem = result[i];
}
return(result);
}
private TypeDescriptor GetElement0Type()
{
if (_sample == null)
{
var etype = CILType.GetElementType();
return(etype == null ? null : new TypeDescriptor(etype));
}
if (CILType.IsArray)
{
Array array = (Array)_sample;
if (array.Length == 0)
{
return(new TypeDescriptor(CILType.GetElementType()));
}
object sample = array.GetValue(new int[array.Rank]);
if (sample == null)
{
return(new TypeDescriptor(CILType.GetElementType()));
}
else
{
return(new TypeDescriptor(sample));
}
}
else if (CILType.IsByRef)
{
return(new TypeDescriptor(_sample));
}
else if (Constraints.Length > 0)
{
var indexers = CILType.GetProperties(BindingFlags.Public | BindingFlags.Instance)
.Where(p => p.GetIndexParameters().Length == Constraints.Length &&
p.GetIndexParameters().All(ip => ip.ParameterType == typeof(int)));
if (indexers.Any())
{
var indexer = indexers.First();
if (Constraints.All(c => c.Size > 0))
{
object[] index = Constraints.Select(r => (object)r.FirstBound).ToArray();
try
{
var indexSample = indexer.GetValue(_sample, index);
return(TypeDescriptor.GetTypeOf(indexSample));
}
catch (Exception)
{
return(indexer.PropertyType);
}
}
else
{
return(indexer.PropertyType);
}
}
else
{
return(null);
}
}
else
{
return(null);
}
}