public ITypeInfo[] GetGenericArguments()
{
if (!NullabilityInfo.IsEmpty() && this.HasItem())
{
return new ITypeInfo[] { new TypeInfo(Type.GetGenericArguments()[0], NullabilityInfo.ForItem()) }
}
;
var args = Type.GetGenericArguments();
var argsNullability = NullabilityInfo.ForGenericArguments(NullabilityInfo, args);
return(args.Select((x, i) => (ITypeInfo) new TypeInfo(x, argsNullability[i])).ToArray());
}
public static NullabilityInfo[] ForGenericArguments(NullabilityInfo nullabilityInfo, Type[] args)
{
if (nullabilityInfo.NullableInfo == null || nullabilityInfo.NullableInfo.Length < 2)
{
return(args.Select(x => new NullabilityInfo(nullabilityInfo.NullableContext, nullabilityInfo.NullableInfo)).ToArray());
}
var result = new List <NullabilityInfo>();
var index = 1;
foreach (var arg in args)
{
var argsLength = GetGenericArgumentsToSkip(arg);
result.Add(argsLength == 0
? Empty
: new NullabilityInfo(
nullabilityInfo.NullableContext,
nullabilityInfo.NullableInfo.Skip(index).Take(argsLength).ToArray()
)
);
index += argsLength;
}
return(result.ToArray());
}
private TypeInfo(Type type, IAttributeProvider memberInfo)
{
Type = type;
Member = memberInfo;
NullabilityInfo = NullabilityInfo.From(memberInfo);
}
private TypeInfo(Type type, NullabilityInfo nullabilityInfo)
{
Type = type;
NullabilityInfo = nullabilityInfo;
}
public bool CanBeNull(NullabilityMode nullabilityMode)
{
return(!this.NeverNull() && NullabilityInfo.CanBeNull(nullabilityMode));
}
public ITypeInfo GetElementType()
{
return(new TypeInfo(Type.GetElementType(), NullabilityInfo.ForItem()));
}
private RoslynTypeInfo(ITypeSymbol typeSymbol, IAttributeProvider memberInfo)
{
TypeSymbol = typeSymbol;
Member = memberInfo;
NullabilityInfo = NullabilityInfo.FromRoslyn(memberInfo);
}
private RoslynTypeInfo(ITypeSymbol typeSymbol, NullabilityInfo nullabilityInfo)
{
TypeSymbol = typeSymbol;
NullabilityInfo = nullabilityInfo;
}