protected override Expression VisitNew(NewExpression expression)
{
var projections = new SqlProjectionExpression[expression.Arguments.Count];
for (int i = 0; i < expression.Arguments.Count; i++)
{
Visit(expression.Arguments[i]);
projections[i] = new SqlProjectionExpression((SqlColumnExpression) ast.Pop(), expression.Members[i].Name);
}
ast.Push(new SqlSelectExpression(projections));
return expression;
}
protected virtual SqlExpression Visit(SqlProjectionExpression expression)
{
return new SqlProjectionExpression((SqlColumnExpression) Visit(expression.From), expression.To);
}
string FormatProjection(SqlProjectionExpression expression)
{
return string.Format("{0} AS {1}", expression.From.ColumnName, expression.To);
}
