/// <summary>
/// Parses a type reference.
/// <see cref="ITypeNode" />:
/// - NamedType
/// - ListType
/// - NonNullType
/// </summary>
/// <param name="context">The parser context.</param>
private ITypeNode ParseTypeReference(ParserContext context)
{
SyntaxToken start = context.Current;
ITypeNode type;
Location location;
if (context.Skip(TokenKind.LeftBracket))
{
type = ParseTypeReference(context);
context.ExpectRightBracket();
location = context.CreateLocation(start);
type = new ListTypeNode(location, type);
}
else
{
type = ParseNamedType(context);
}
if (context.Skip(TokenKind.Bang))
{
if (type is INullableType nt)
{
return(new NonNullTypeNode
(
context.CreateLocation(start),
nt
));
}
context.Unexpected(context.Current.Previous);
}
return(type);
}