public override object VisitInvocation([NotNull] CalculatorParser.InvocationContext context)
{
object oldValue = context.expression().Accept(this);
var varName = m_iterName;
var stack = m_iterStack;
var func = oldValue as IFunction;
var paramList = context.paramList() is null ? null : context.paramList().Accept(this) as List <object>;
var ret = FuncOperation(func, paramList, stack);
m_iterStack = null;
m_iterName = "";
return(ret);
}
/// <summary>
/// Visit a parse tree produced by <see cref="CalculatorParser.invocation"/>.
/// <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 VisitInvocation([NotNull] CalculatorParser.InvocationContext context)
{
return(VisitChildren(context));
}
