public override int VisitVar_node(BRAQParser.Var_nodeContext context)
{
if (TryResolve(context.id_name, out var var_definition_point))
{
if (!assigned[var_definition_point])
{
string msg = $"using unassigned variable {context.id_name.Text}";
Console.WriteLine(msg);
throw new TypesolvingError();
}
declaration[context.id_name] = var_definition_point;
}
else if (TryResolveAsArg(context.id_name, out var argumentDefinition))
{
token_to_argument[context.id_name] = argumentDefinition;
}
else if (PredefsHelper.ResolveType(context.id_name.Text, imported_types) != null)
{
}
else
{
Console.WriteLine($"unknown variable {context.id_name.Text} [Line {context.id_name.Line}]");
throw new UnknownVariableException();
}
return(0);
}
public override Type VisitVar_node(BRAQParser.Var_nodeContext context)
{
if (var_to_local_def.ContainsKey(context.id_name))
{
var def_point = var_to_local_def[context.id_name];
Type t = locals_type[def_point];
return(type_dict[context] = t);
}
try
{
return(type_dict[context] = result_box.argtypes[context.id_name.Text]);
}
catch (InvalidOperationException)
{
}
catch (KeyNotFoundException)
{
}
try
{
Type t = PredefsHelper.ResolveType(context.id_name.Text, imported_names);
if (t == null)
{
throw new InvalidOperationException();
}
return(type_dict[context] = t);
}
catch (InvalidOperationException)
{
Console.WriteLine($"unknown variable {context.id_name.Text} [Line {context.id_name.Line}]");
throw new UnknownVariableException();
}
}
private static Type string_to_type(string name, List <Type> imported_names)
{
return(PredefsHelper.ResolveType(name, imported_names));
}
