protected virtual void EmitCaseExpression(CaseExpression expression)
{
AppendFormat("{0}", "case");
if (expression.Expression != null)
{
Append(" ");
EmitExpression(expression.Expression);
}
for (int index = 0; index < expression.CaseItems.Count; index++)
{
AppendFormat(" {0} ", "when");
EmitExpression(expression.CaseItems[index].WhenExpression);
AppendFormat(" {0} ", "then");
EmitExpression(expression.CaseItems[index].ThenExpression);
}
if (expression.ElseExpression != null)
{
AppendFormat(" {0} ", "else");
EmitExpression(((CaseElseExpression)expression.ElseExpression).Expression);
}
AppendFormat(" {0}", "end");
}
public object Translate(TranslationContext context, ASTNode node)
{
var result = new Model.CaseExpression();
var resultItem = new Model.CaseItemExpression();
resultItem.WhenExpression = (Model.Expression)context.TranslateNode(node.Children[0]);
resultItem.ThenExpression = (Model.Expression)context.TranslateNode(node.Children[1]);
result.CaseItems.Add(resultItem);
result.ElseExpression = (Model.Expression)context.TranslateNode(node.Children[2]);
return result;
}