public override IEnumerator<RantAction> Run(Sandbox sb)
{
if (sb.Objects[Name] == null)
throw new RantRuntimeException(sb.Pattern, _name, $"The subroutine '{Name}' does not exist.");
var sub = (RADefineSubroutine)sb.Objects[Name].Value;
if (sub.Parameters.Keys.Count != Arguments.Count)
throw new RantRuntimeException(sb.Pattern, _name, "Argument mismatch on subroutine call.");
var action = sub.Body;
var args = new Dictionary<string, RantAction>();
var parameters = sub.Parameters.Keys.ToArray();
for (var i = 0; i < Arguments.Count; i++)
{
if (sub.Parameters[parameters[i]] == SubroutineParameterType.Greedy)
{
sb.AddOutputWriter();
yield return Arguments[i];
var output = sb.Return();
args[parameters[i]] = new RAText(_name, output.Main);
}
else
args[parameters[i]] = Arguments[i];
}
sb.SubroutineArgs.Push(args);
yield return action;
sb.SubroutineArgs.Pop();
yield break;
}
public override IEnumerator <RantAction> Run(Sandbox sb)
{
if (_inModule)
{
if (!sb.Modules.ContainsKey(Name))
{
throw new RantRuntimeException(
sb.Pattern,
_name,
$"The module '{Name}' does not exist or has not been imported."
);
}
if (sb.Modules[Name][_moduleFunctionName] == null)
{
throw new RantRuntimeException(
sb.Pattern,
_name,
$"The function '{_moduleFunctionName}' cannot be found in the module '{Name}'."
);
}
}
else if (sb.Objects[Name] == null)
{
throw new RantRuntimeException(sb.Pattern, _name, $"The subroutine '{Name}' does not exist.");
}
var sub = (RADefineSubroutine)(_inModule ? sb.Modules[Name][_moduleFunctionName] : sb.Objects[Name].Value);
if (sub.Parameters.Keys.Count != Arguments.Count)
{
throw new RantRuntimeException(sb.Pattern, _name, "Argument mismatch on subroutine call.");
}
var action = sub.Body;
var args = new Dictionary <string, RantAction>();
var parameters = sub.Parameters.Keys.ToArray();
for (var i = 0; i < Arguments.Count; i++)
{
if (sub.Parameters[parameters[i]] == SubroutineParameterType.Greedy)
{
sb.AddOutputWriter();
yield return(Arguments[i]);
var output = sb.Return();
args[parameters[i]] = new RAText(_name, output.Main);
}
else
{
args[parameters[i]] = Arguments[i];
}
}
sb.SubroutineArgs.Push(args);
yield return(action);
sb.SubroutineArgs.Pop();
yield break;
}
private IEnumerable<Parselet> BlockWeight(Token<R> token)
{
Token<R> funcToken = null;
var actions = new List<RantAction>();
while (!reader.End)
{
funcToken = reader.ReadToken();
if (funcToken.ID == R.RightParen)
{
reader.SkipSpace();
if (!actions.Any())
compiler.SyntaxError(funcToken, "Expected weight value");
RantAction weightAction;
// probably a number
if (actions[0] is RAText)
{
if (actions.Count > 1)
{
if (!(actions[1] is RAText) || ((RAText)actions[1]).Text != "." || actions.Count != 3)
compiler.SyntaxError(actions[1].Range, "Invalid block weight value.");
weightAction = new RAText(actions[0].Range,
(actions[0] as RAText).Text +
(actions[1] as RAText).Text +
(actions[2] as RAText).Text);
}
else
weightAction = actions[0];
}
else
weightAction = new RASequence(actions, funcToken);
AddToOutput(weightAction);
yield break;
}
yield return Parselet.GetParselet(funcToken, actions.Add);
}
// TODO: this token is "our" (the one that result is us being yielded) token. maybe have the 'fromToken' passed?
compiler.SyntaxError(token, "Unterminated function: unexpected end of file");
}