public Void Visit(ListStatement listStatement, SortedSet <string> free)
{
for (var i = 0; i < listStatement.exprs.Count; i++)
{
listStatement.exprs[i].Accept(this, free);
}
return(null);
}
public IValue Visit(ListStatement listStatement)
{
//var list = listStatement.Accept(this);
//var x = ((ListValue)list).List;
//foreach (var s in listStatement.exprs)
//{
// x.Add(s.Accept(this));
//}
//return new ListValue(x);
return(null);
}
public Statement Visit(ListStatement listStatement)
{
return(null);
}
public Type Visit(ListStatement listStatement, FunctionGeneratorEnvironment arg)
{
throw new NotImplementedException();
}
/// <summary>
/// Parse the SQL string and return a Statement
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static IStatement Parse(string value)
{
IStatement result = null;
foreach (KeyValuePair <QAStatementType, string[]> kv in Clauses)
{
string[] splitters = kv.Value;
if (!value.StartsWith(splitters[0], StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
List <KeyValue> clauses = ParseStatement(value, splitters);
CheckRequiredClause(clauses, kv.Key);
#region Return strong-type statements
switch (kv.Key)
{
#region DML Statements
case QAStatementType.Select:
result = new SelectStatement(clauses);
break;
case QAStatementType.Insert:
result = new InsertStatement(clauses);
break;
case QAStatementType.Update:
result = new UpdateStatement(clauses);
break;
#endregion
#region DDL Statements
case QAStatementType.Delete:
result = new DeleteStatement(clauses);
break;
case QAStatementType.CreateTable:
result = new CreateTableStatement(clauses);
break;
case QAStatementType.DropTable:
result = new DropTableStatement(clauses);
break;
#endregion
#region QueryAnything Statements
case QAStatementType.OpenFile:
result = new OpenStatement(clauses);
break;
case QAStatementType.OpenDatabase:
result = new OpenDatabaseStatement(clauses);
break;
case QAStatementType.SaveDataSet:
result = new SaveDataSetStatement(clauses);
break;
case QAStatementType.SaveDataTable:
result = new SaveDataTableStatement(clauses);
break;
case QAStatementType.Commit:
result = new CommitStatement(clauses);
break;
case QAStatementType.Rollback:
result = new RollbackStatement(clauses);
break;
case QAStatementType.Clear:
result = new ClearStatement(clauses);
break;
case QAStatementType.List:
result = new ListStatement(clauses);
break;
case QAStatementType.ViewDataSet:
result = new ViewDataSet(clauses);
break;
#endregion
default:
throw new ArgumentOutOfRangeException("key=" + kv.Key);
}
#endregion
if (result != null)
{
break;
}
}
return(result);
}
