public override void ExitWindow_function(MiniSqlParserParser.Window_functionContext context)
{
var comments = this.GetComments(context.function_name().qualified_schema_name());
comments.AddRange(this.GetComments(context.function_name()));
comments.AddRange(this.GetComments(context));
Identifier serverName = null;
Identifier databaseName = null;
Identifier schemaName = null;
if (context.function_name().qualified_schema_name() != null)
{
serverName = this.GetIdentifier(context.function_name().qualified_schema_name().s);
databaseName = this.GetIdentifier(context.function_name().qualified_schema_name().d);
schemaName = this.GetIdentifier(context.function_name().qualified_schema_name().n);
}
var name = this.GetIdentifier(context.function_name().identifier());
QuantifierType quantifier;
if (context.K_DISTINCT() != null)
{
quantifier = QuantifierType.Distinct;
}
else if (context.K_ALL() != null)
{
quantifier = QuantifierType.All;
}
else
{
quantifier = QuantifierType.None;
}
var hasWildcard = context.STAR() != null;
var orderBy = (OrderBy)_stack.Pop();
PartitionBy partitionBy = null;
if (context.partitionBy_clause() != null)
{
partitionBy = (PartitionBy)_stack.Pop();
}
Exprs arguments = null;
if (context.exprs() != null)
{
arguments = (Exprs)_stack.Pop();
}
_stack.Push(new WindowFuncExpr(serverName
, databaseName
, schemaName
, name
, quantifier
, hasWildcard
, arguments
, partitionBy
, orderBy
, comments));
}
public override void VisitAfter(WindowFuncExpr expr)
{
OrderBy orderBy = (OrderBy)_stack.Pop();
PartitionBy partitionBy = null;
if (expr.PartitionBy != null)
{
partitionBy = (PartitionBy)_stack.Pop();
}
Exprs arg = null;
if (expr.Arguments != null)
{
arg = (Exprs)_stack.Pop();
}
if (object.ReferenceEquals(expr.Arguments, arg) &&
object.ReferenceEquals(expr.PartitionBy, partitionBy) &&
object.ReferenceEquals(expr.OrderBy, orderBy))
{
_stack.Push(expr);
return;
}
var node = new WindowFuncExpr(expr.ServerName
, expr.DataBaseName
, expr.SchemaName
, expr.Name
, expr.Quantifier
, expr.HasWildcard
, arg
, partitionBy
, orderBy
, expr.Comments.Clone());
_stack.Push(node);
}
virtual public void VisitAfter(PartitionBy partitionBy)
{
}
virtual public void VisitBefore(PartitionBy partitionBy)
{
}
public override void VisitAfter(PartitionBy partitionBy)
{
}
public override void VisitAfter(PartitionBy partitionBy)
{
--_clauseLevel;
}
public override void VisitBefore(PartitionBy partitionBy)
{
++_clauseLevel;
}
public void VisitAfter(PartitionBy partitionBy)
{
_visitor.VisitAfter(partitionBy);
}
public void VisitBefore(PartitionBy partitionBy)
{
_visitor.VisitBefore(partitionBy);
}
