public override int VisitInPower([NotNull] GrammarParser.InPowerContext context)
{
var l = Left(context);
var r = Right(context);
int ans;
if (r < 0)
{
var ex = new ArgumentOutOfRangeException();
ex.Data.Add("Type", "expression in negative power");
throw ex;
}
else if (r == 0 && l == 0)
{
var ex = new ArgumentOutOfRangeException();
ex.Data.Add("Type", "null expression in null power");
throw ex;
}
else
{
ans = (int)Math.Pow(l, r);
}
Console.WriteLine($"pow {ans}");
return(ans);
}
/// <summary>
/// Visit a parse tree produced by the <c>InPower</c>
/// labeled alternative in <see cref="GrammarParser.expression"/>.
/// <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 VisitInPower([NotNull] GrammarParser.InPowerContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by the <c>InPower</c>
/// labeled alternative in <see cref="GrammarParser.expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitInPower([NotNull] GrammarParser.InPowerContext context)
{
}
