/// <inheritdoc cref="UnaryExpression.Update(Expression)" select="summary"/>
public GroupByClause Update(ParameterExpression variable, Expression selector)
{
if (Variable == variable && Selector == selector)
{
return(this);
}
return(Expressive.GroupBy(variable, selector));
}
/// <inheritdoc cref="UnaryExpression.Update(Expression)" select="summary"/>
public GroupByIntoClause Update(ParameterExpression variable, Expression selector, ParameterExpression group)
{
if (Variable == variable && Selector == selector && Group == group)
{
return(this);
}
return(Expressive.GroupBy(variable, selector, group));
}
private QueryClause VisitTerminationClause(SelectOrGroupClauseSyntax node)
{
if (node is SelectClauseSyntax select)
{
return(Expressive.Select(Visit(select.Expression)));
}
if (node is GroupClauseSyntax group)
{
return(Expressive.GroupBy(null, Visit(group.GroupExpression)));
}
throw new ArgumentException();
}
