public override Argument VisitArgumentExtendedOrDirect(AsmParser.ArgumentExtendedOrDirectContext context)
{
try
{
int val = m_exprEvaluator.Visit(context.expr());
// TODO: infer type rather than checking value?
//if (val >= 0 && val < 256)
// return new ArgumentWithValue(AddressingMode.Direct, val);
//else
return(new ArgumentWithValue(AddressingMode.Extended, val));
}
catch (UnknownIdentifierException)
{
if (m_allowDefer)
{
return(new ArgumentDeferred(AddressingMode.Extended, context));
}
else
{
throw;
}
}
}
/// <summary>
/// Visit a parse tree produced by <see cref="AsmParser.ArgumentExtendedOrDirect"/>.
/// <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 VisitArgumentExtendedOrDirect([NotNull] AsmParser.ArgumentExtendedOrDirectContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="AsmParser.ArgumentExtendedOrDirect"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitArgumentExtendedOrDirect([NotNull] AsmParser.ArgumentExtendedOrDirectContext context)
{
}