public override double VisitOpExpr([NotNull] CalcParser.OpExprContext context)
{
double left = Visit(context.left);
double right = Visit(context.right);
string op = context.op.Text;
return(_funcMap[op](left, right));
}
/// <summary>
/// Visit a parse tree produced by the <c>opExpr</c>
/// labeled alternative in <see cref="CalcParser.expr"/>.
/// <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 VisitOpExpr([NotNull] CalcParser.OpExprContext context)
{
return(VisitChildren(context));
}
