protected override void Execute(SmallBasicEngine engine)
{
BaseValue value = engine.EvaluationStack.Pop();
executeAux(new ArrayValue(engine.Memory), this.array, this.indicesCount);
BaseValue executeAux(ArrayValue memory, string index, int remainingIndices)
{
if (remainingIndices == 0)
{
if (string.IsNullOrEmpty(value.ToString()))
{
memory.RemoveIndex(index);
}
else
{
memory.SetIndex(index, value);
}
}
else
{
ArrayValue nextMemory =
memory.TryGetValue(index, out BaseValue elementValue) && elementValue is ArrayValue elementArrayValue
? elementArrayValue
: new ArrayValue();
string nextIndex = engine.EvaluationStack.Pop().ToString();
memory.SetIndex(index, executeAux(nextMemory, nextIndex, remainingIndices - 1));
}
return(memory);
}
}
protected override BaseValue Execute(BaseValue first, BaseValue second)
{
if (first is NumberValue && second is NumberValue)
{
return(new NumberValue(first.ToNumber() + second.ToNumber()));
}
return(StringValue.Create(first.ToString() + second.ToString()));
}
protected override BaseValue Execute(BaseValue first, BaseValue second) => new BooleanValue(first.ToString() != second.ToString());