private static void setResult(Sqlite3.sqlite3_context ctx, object result)
{
if (result == null)
{
Sqlite3.sqlite3_result_null(ctx);
}
else if (result is bool)
{
Sqlite3.sqlite3_result_int64(ctx, ((bool)result) ? 1 : 0);
}
else if (result is int)
{
Sqlite3.sqlite3_result_int64(ctx, (int)result);
}
else if (result is long)
{
Sqlite3.sqlite3_result_int64(ctx, (long)result);
}
else if (result is System.Numerics.BigInteger)
{
Sqlite3.sqlite3_result_int64(ctx, (long)((System.Numerics.BigInteger)result));
}
else if (result is float)
{
Sqlite3.sqlite3_result_double(ctx, (float)result);
}
else if (result is double)
{
Sqlite3.sqlite3_result_double(ctx, (double)result);
}
else if (result is string)
{
Sqlite3.sqlite3_result_text(ctx, (string)result, -1, Sqlite3.SQLITE_TRANSIENT);
}
else if (result is byte[])
{
byte[] b = (byte[])result;
string s = Latin1.GetString(b, 0, b.Length);
Sqlite3.sqlite3_result_blob(ctx, s, s.Length, Sqlite3.SQLITE_TRANSIENT);
}
else if (result is PythonBuffer)
{
PythonBuffer buffer = (PythonBuffer)result;
string s = buffer.__getslice__(0, null).ToString();
Sqlite3.sqlite3_result_blob(ctx, s, s.Length, Sqlite3.SQLITE_TRANSIENT);
}
else
{
// TODO raise error
}
}
private object fetchOneRow(CodeContext context)
{
int numcols = Sqlite3.sqlite3_data_count(this.statement.st);
object[] row = new object[numcols];
object converter = null;
for (int i = 0; i < numcols; ++i)
{
object converted = null;
if (this.connection.detect_types != 0)
{
converter = row_cast_map[i];
}
else
{
converter = null;
}
if (converter != null)
{
byte[] val = Sqlite3.sqlite3_column_blob(this.statement.st, i);
if (val == null)
{
converted = null;
}
else
{
string item = Latin1.GetString(val, 0, val.Length);
converted = PythonCalls.Call(context, converter, item);
}
}
else
{
int coltype = Sqlite3.sqlite3_column_type(this.statement.st, i);
switch (coltype)
{
case Sqlite3.SQLITE_NULL:
converted = null;
break;
case Sqlite3.SQLITE_INTEGER:
long l = Sqlite3.sqlite3_column_int64(this.statement.st, i);
if (l < int.MinValue || l > int.MaxValue)
{
converted = l;
}
else
{
converted = (int)l;
}
break;
case Sqlite3.SQLITE_FLOAT:
converted = Sqlite3.sqlite3_column_double(this.statement.st, i);
break;
case Sqlite3.SQLITE_TEXT:
converted = Sqlite3.sqlite3_column_text(this.statement.st, i);
break;
case Sqlite3.SQLITE_BLOB:
default:
converted = new Bytes(Sqlite3.sqlite3_column_blob(this.statement.st, i) ?? new byte[0]); // TODO: avoid creating a copy
break;
}
}
row[i] = converted;
}
return(new PythonTuple(row));
}