// Setting up a "with" statement - creating a new scope
public void Push(string alias, CompoundIdentifier expansion)
{
// Create a new scope and push it on the stack
var scope = new Scope();
scopes.Push(scope);
// Add the alias
scope.AddAlias(alias, expansion);
}
public override bool VisitAlias(TypeAliasAST alias)
{
//se asume que no habra problema
alias.ReturnType = TigerType.GetType <NoType>();
//la clase base verifica q el id del type sea valido
//aqui si se ve q el return true hace falta
if (VisitTypeDeclaration(alias))
{
TigerType tt;
//se verifica que exista el tipo del cual se esta creando un alias
if (_scope.HasType(alias.AliasToWho, out tt) != ScopeLocation.NotDeclared)
{
//se anade una nueva entrada del mismo type, lo q con otro id
_scope.AddAlias(alias.TypeId, alias.AliasToWho);
return(true);
}
int savedErrorPos = _errorListener.Count;
//manejador de evento
_scope.TypeAdded += (sender, args) =>
{
if (args.TypeName == alias.AliasToWho)
{
_scope.AddType(alias.TypeId, args.NewType);
}
};
//manejador de evento
_scope.FinalizeScope += (sender, args) =>
{
if (sender.HasType(alias.AliasToWho) == ScopeLocation.NotDeclared)
{
_errorListener.Insert(savedErrorPos, AnalysisError.TypeIsNotDefined(alias, alias.AliasToWho));
alias.ReturnType = TigerType.GetType <ErrorType>();
}
};
return(true);
}
return(false);
}
public void Push(JObject doc)
{
Scope currentScope = new Scope();
JToken t;
if (doc.TryGetValue("@context", out t))
{
JObject context = (JObject)t;
foreach (JProperty prop in context.Properties())
{
if (prop.Value.Type == JTokenType.Object)
{
currentScope.Add(prop.Name, new TermDefinition((JObject)prop.Value));
}
else
{
string value = prop.Value.ToString();
switch (prop.Name)
{
case "@base":
currentScope.Base = value;
break;
case "@vocab":
currentScope.Vocab = value;
break;
case "@language":
currentScope.Language = value;
break;
default:
switch (value)
{
case "@id":
case "@type":
//TODO: other keywords
currentScope.AddAlias(prop.Name, value);
break;
default:
currentScope.Add(prop.Name, new TermDefinition(value));
break;
}
break;
}
}
}
currentScope.Expand(this);
}
_context.Push(currentScope);
}