public override object VisitEnd(MFSHParser.EndContext context)
{
const String fcn = "VisitEnd";
this.TraceMsg(context, fcn);
ParseBlock s = this.PopState();
switch (s)
{
case UseBlock useBlock:
this.Usings.Remove(useBlock.Use);
this.Current.Items.AddRange(useBlock.Items);
break;
case MacroBlock macroBlock:
if (this.mfsh.MacroMgr.TryAddItem(macroBlock.Item.Name, macroBlock.Item) == false)
{
this.Error(fcn,
context.Start.Line.ToString(),
$"Error adding macro '{macroBlock.Item.Name}'. Does macro already exist?");
}
break;
case ConditionalBlock conditionalBlock:
this.Current.Items.Add(conditionalBlock.Conditional);
break;
default:
this.Error(fcn,
context.Start.Line.ToString(),
$"Unexpected '#end'");
throw new Exception($"Unexpected '#end'");
}
return(null);
}
/// <summary>
/// Visit a parse tree produced by <see cref="MFSHParser.end"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitEnd([NotNull] MFSHParser.EndContext context)
{
return(VisitChildren(context));
}
