void PopulateUsings()
{
var usingLookup = new Dictionary <string, ConfigUsing>();
foreach (var cUsing in _config.Usings)
{
var label = cUsing.Label.Text;
if (!usingLookup.ContainsKey(label))
{
usingLookup.Add(label, cUsing);
}
else
{
ReporterHelper.AddError(_reporter, cUsing.Label, "Type reference already defined.");
}
}
{
var label = _config.Manager.TokenType;
if (!string.IsNullOrEmpty(label) && usingLookup.TryGetValue(label, out var terminalType))
{
_config.TerminalType = terminalType;
}
}
var pending = new List <Segment>();
foreach (var cProduction in _config.Productions)
{
var name = cProduction.Target.Text;
var segment = GetNonTerminal(name);
cProduction.Segment = segment;
if (cProduction.TypeRef == null)
{
pending.Add(segment);
}
else
{
if (!usingLookup.TryGetValue(cProduction.TypeRef.Text, out var cUsing))
{
ReporterHelper.AddError(_reporter, cProduction.TypeRef, "Unknown type reference.");
}
else if (!_ntTypes.TryGetValue(segment, out var cExistingUsing))
{
_ntTypes.Add(segment, cUsing);
}
else if (cUsing != cExistingUsing)
{
ReporterHelper.AddError(_reporter, cProduction.TypeRef, "This type conflicts with a previous definition of <{0}>.", name);
}
}
}
ConfigUsing defaultUsing = null;
if (_config.TerminalType == null)
{
defaultUsing = CreateDefaultUsing(usingLookup);
_config.Usings.Add(defaultUsing);
_config.TerminalType = defaultUsing;
}
foreach (var segment in pending)
{
if (_ntTypes.ContainsKey(segment))
{
continue;
}
if (defaultUsing == null)
{
defaultUsing = CreateDefaultUsing(usingLookup);
_config.Usings.Add(defaultUsing);
}
_ntTypes.Add(segment, defaultUsing);
}
}
protected override Config Reduce_ConfigSettings_2(Config configSettingsSeg, ConfigUsing usingSeg)
{
configSettingsSeg.Usings.Add(usingSeg);
return(configSettingsSeg);
}