public override Productions.TerminalBase Build(Productions.GrammarBuilder builder)
{
if (builder.TryFind(name.Value, out var id, out var isTerminal))
{
return(isTerminal ?
new Productions.TerminalSymbol(name, id) :
new Productions.NonTerminalSymbol(name, id));
}
return(builder.MissingSymbol(name));
}
protected virtual Productions.TerminalBase Build(
Productions.GrammarBuilder grammarBuilder,
Productions.TerminalBase symbol)
{
var name = symbol.Name + NameSuffix;
var found = grammarBuilder.TryFind(name, out var id, out var isTerminal);
if (!found)
{
return(grammarBuilder.MissingSymbol(new Identifier(this, name)));
}
return(!isTerminal ?
new Productions.NonTerminalSymbol(this, name, id) :
new Productions.TerminalSymbol(this, name, id));
}
public Productions.ITerminals Build(Productions.GrammarBuilder builder)
{
if (Right.Count == 0)
{
return(new Productions.EmptyTerminals());
}
if (Right.Count == 1)
{
return(new Productions.SingleTerminal(Right[0].Build(builder)));
}
var terms = new Productions.TerminalBase[Right.Count];
for (var i = 0; i < terms.Length; i++)
{
terms[i] = Right[i].Build(builder);
}
return(new Productions.Terminals(terms));
}
public override Productions.TerminalBase Build(Productions.GrammarBuilder builder) =>
public abstract Productions.TerminalBase Build(Productions.GrammarBuilder builder);
public override Productions.TerminalBase Build(Productions.GrammarBuilder builder)
{
var symbol = expr.Build(builder);
return(Build(builder, symbol));
}
