/// <summary>
/// Visits a <see cref="T:ConnectQl.Internal.Ast.Expressions.AliasedSqlExpression" />.
/// </summary>
/// <param name="node">The node.</param>
/// <returns>
/// The node, or a new version of the node.
/// </returns>
protected internal override Node VisitAliasedSqlExpression([NotNull] AliasedSqlExpression node)
{
if (this.data.GetScope(node.Expression) == NodeScope.Group)
{
}
return(base.VisitAliasedSqlExpression(node));
}
protected internal override Node VisitAliasedSqlExpression([NotNull] AliasedSqlExpression node)
{
this.Visit(node.Expression);
if (node.Alias != null)
{
this.Builder.Append($" AS {node.Alias}");
}
return(node);
}
/// <summary>
/// Visits a <see cref="AliasedSqlExpression"/>.
/// </summary>
/// <param name="node">
/// The node.
/// </param>
/// <returns>
/// The node, or a new version of the node.
/// </returns>
protected internal override Node VisitAliasedSqlExpression(AliasedSqlExpression node)
{
if (node.Expression is WildcardSqlExpression)
{
return(this.ValidateChildren(node));
}
var alias = this.Scope.AddAlias(node.Alias ?? (node.Expression as FieldReferenceSqlExpression)?.Name);
if (node.Alias != alias)
{
node = this.Data.CopyValues(node, new AliasedSqlExpression(node.Expression, alias));
}
return(this.ValidateChildren(node));
}
/// <summary>
/// Visits a <see cref="AliasedSqlExpression"/>.
/// </summary>
/// <param name="node">
/// The node.
/// </param>
/// <returns>
/// The node, or a new version of the node.
/// </returns>
protected internal virtual Node VisitAliasedSqlExpression([NotNull] AliasedSqlExpression node)
{
return(node.VisitChildren(this));
}
/// <summary>
/// Visits a <see cref="AliasedSqlExpression"/>.
/// </summary>
/// <param name="node">
/// The node.
/// </param>
/// <returns>
/// The node, or a new version of the node.
/// </returns>
protected internal override Node VisitAliasedSqlExpression(AliasedSqlExpression node)
{
return(this.VisitImplementation(node) ?? base.VisitAliasedSqlExpression(node));
}
