private Group Visit(GotoOpAST gotoOpAST)
{
ILinkable source = Visit(gotoOpAST.Source) as ILinkable;
ILinkable destination = Visit(gotoOpAST.Destination) as ILinkable;
if (source != null && destination != null)
{
try
{
source.Connect(destination);
}
catch (LigralException)
{
throw logger.Error(new SemanticException(gotoOpAST.FindToken()));
}
}
else
{
throw logger.Error(new SemanticException(gotoOpAST.FindToken(), "Invalid connection"));
}
Group group = new Group();
group.AddInputModel(source);
group.AddOutputModel(destination);
return(group);
}
private ChainAST Chain()
{
AST nodeExprAST = NodeExpr(true);
while (currentToken.Type == TokenType.GOTO)
{
OperatorToken gotoToken = (OperatorToken)currentToken;
Eat(TokenType.GOTO);
nodeExprAST = new GotoOpAST(nodeExprAST, NodeExpr(false), gotoToken);
}
return(new ChainAST(nodeExprAST));
}
