protected LNode SingleExprInside(Token group, string stmtType, bool allowUnassignedVarDecl, ref LNodeList list)
{
int oldCount = list.Count;
list = AppendExprsInside(group, list, false, allowUnassignedVarDecl);
if (list.Count != oldCount + 1)
{
if (list.Count <= oldCount)
{
LNode result = F.Id(S.Missing, group.StartIndex + 1, group.StartIndex + 1);
list.Add(result);
Error(result, "Missing expression inside '{0}'", stmtType);
return(result);
}
else
{
Error(list[1], "There should be only one expression inside '{0}'", stmtType);
list.Resize(oldCount + 1);
}
}
return(list[0]);
}