public void ProcessSelectSetVariable(SelectSetVariable SelectElement)
{
string VarName = SelectElement.Variable.Name;
ScalarExpression Expression = SelectElement.Expression;
ProcessSelectSetFragment(Expression, VarName);
}
public QsiDerivedColumnNode VisitSelectSetVariable(SelectSetVariable selectSetVariable)
{
return(TreeHelper.Create <QsiDerivedColumnNode>(n =>
{
var kind = selectSetVariable.AssignmentKind switch
{
AssignmentKind.Equals => QsiAssignmentKind.Equals,
AssignmentKind.AddEquals => QsiAssignmentKind.AddEquals,
AssignmentKind.DivideEquals => QsiAssignmentKind.DivideEquals,
AssignmentKind.ModEquals => QsiAssignmentKind.ModEquals,
AssignmentKind.MultiplyEquals => QsiAssignmentKind.MultiplyEquals,
AssignmentKind.SubtractEquals => QsiAssignmentKind.SubtractEquals,
AssignmentKind.BitwiseAndEquals => QsiAssignmentKind.BitwiseAndEquals,
AssignmentKind.BitwiseOrEquals => QsiAssignmentKind.BitwiseOrEquals,
AssignmentKind.BitwiseXorEquals => QsiAssignmentKind.BitwiseXorEquals,
_ => throw new InvalidOperationException()
};
n.Expression.SetValue(TreeHelper.Create <QsiSetVariableExpressionNode>(en =>
{
en.Target = IdentifierVisitor.VisitVariableReference(selectSetVariable.Variable);
en.AssignmentKind = kind;
en.Value.SetValue(ExpressionVisitor.VisitScalarExpression(selectSetVariable.Expression));
}));
SqlServerTree.PutFragmentSpan(n, selectSetVariable);
}));
}
public void Declare(SelectSetVariable node)
{
DeclaredVariables[node.Variable.Name] = new Variable(null) { Node = node };
}
public void ProcessSelectSetVariable(SelectSetVariable SelectElement)
{
string VarName = SelectElement.Variable.Name;
ScalarExpression Expression = SelectElement.Expression;
ProcessSelectSetFragment(Expression, VarName);
}
public override void Visit(SelectSetVariable node) { this.action(node); }
public override void ExplicitVisit(SelectSetVariable fragment)
{
_fragments.Add(fragment);
}
public override void ExplicitVisit(SelectSetVariable node)
{
SelectSetVariables.Add(node);
}
public override void ExplicitVisit(SelectSetVariable node)
{
// no! do not call the base implementation : stop the visiting of the child fragments!
hasSetVariable = true; // => no outputs
outputSet.Clear();
}
