public static Type[] GetSiteTypes(IList <Expression> arguments, Type returnType)
{
int count = arguments.Count;
Type[] ret = new Type[count + 1];
for (int i = 0; i < count; i++)
{
ret[i] = arguments[i].Type;
}
ret[count] = returnType;
NonNullType.AssertInitialized(ret);
return(ret);
}
private static InputType ParseInputType(ref Token token, ListIterator <Token> iterator)
{
if (token is PunctuatorToken && token.Value.Equals("["))
{
token = AssertNotEof(iterator.FirstOrDefault());
var inputType = ParseInputType(ref token, iterator);
// token is currently ']'
token = AssertNotEof(iterator.FirstOrDefault());
var listType = new ListType(inputType);
InputType result = listType;
if (token is PunctuatorToken && token.Value.Equals("!"))
{
token = AssertNotEof(iterator.FirstOrDefault());
result = new NonNullType(listType);
}
return(result);
}
if (!(token is NameToken))
{
throw new ParserException();
}
var namedType = new NamedType(token.Value);
token = AssertNotEof(iterator.FirstOrDefault());
if (token is PunctuatorToken && token.Value.Equals("!"))
{
token = AssertNotEof(iterator.FirstOrDefault());
return(new NonNullType(namedType));
}
return(namedType);
}
private static bool TryCreateBluePrint(
List <Type> components,
int index,
out IType bluePrint)
{
if (index < components.Count)
{
Type component = components[index];
if (index == components.Count - 1)
{
if (IsNamedType(component))
{
bluePrint = TypeFactoryHelper.PlaceHolder;
return(true);
}
}
else if (IsNonNullType(component))
{
if (TryCreateBluePrint(components, index + 1, out IType innerType) &&
innerType.Kind != TypeKind.NonNull)
{
bluePrint = new NonNullType(innerType);
return(true);
}
}
else if (IsListType(component))
{
if (TryCreateBluePrint(components, index + 1, out IType innerType))
{
bluePrint = new ListType(innerType);
return(true);
}
}
}
bluePrint = null;
return(false);
}
private TypeNameField()
{
Name = WellKnownNames.TypeName;
Type = new NonNullType(new StringType());
Arguments = FieldCollection <IInputField> .Empty;
}
private void VisitNonNullType(NonNullType node)
{
EnterNode(node);
Visit(node.OfType);
ExitNode(node);
}
protected override void ExitNonNullType(PrinterContext context, NonNullType nonNullType)
{
context.Append("!");
}
private string PrintNonNullType(NonNullType node)
{
var type = Print(node.OfType);
return($"{type}!");
}
protected virtual void ExitNonNullType(TContext context, NonNullType nonNullType)
{
}
