public static void SetRequiredParen(CleanupAstNodeStates states)
{
for (var i = 2; i < states.Count; i++)
{
var closeToken = states[i];
if (closeToken.Token != TokenKind.CloseSquared)
continue;
var openToken = states[i];
if (openToken.Token != TokenKind.OpenSquared)
continue;
closeToken.Token = TokenKind.Comma;
closeToken.Content = ",";
}
for (var i = states.Count - 1; i > 0; i--)
{
var openToken = states[i];
if (openToken.Token != TokenKind.OpenSquared)
continue;
var idToken = states[i - 1];
if (idToken.Token != TokenKind.Identifier)
continue;
var closeTokenId = states.GetNextMachingTokenKind(TokenKind.CloseSquared, TokenKind.OpenSquared, i);
var toAdd = new List<ParseNode>();
for (var addRange = i; addRange <= closeTokenId; addRange++)
{
toAdd.Add(states[addRange].Clone());
}
states.InsertRange(i - 1, toAdd);
i += toAdd.Count;
closeTokenId = states.GetNextMachingTokenKind(TokenKind.CloseSquared, TokenKind.OpenSquared, i);
states.RemoveRange(i, closeTokenId);
}
}