public Precedence(Precedence.PrecType t, int p, Precedence next)
{
if (Precedence.CheckType(next, t, 0) != 0)
{
Console.WriteLine("redeclaration of precedence");
}
this.m_next = next;
this.m_type = t;
this.m_prec = p;
}
public static int Check(Precedence p, Precedence.PrecType t, int d)
{
if (p == null)
{
return(0);
}
if (p.m_type == t)
{
return(p.m_prec);
}
return(Precedence.Check(p.m_next, t, d + 1));
}
private static int CheckType(Precedence p, Precedence.PrecType t, int d)
{
if (p == null)
{
return(0);
}
if (p.m_type == t || p.m_type <= Precedence.PrecType.nonassoc && t <= Precedence.PrecType.nonassoc)
{
return(p.m_prec);
}
return(Precedence.Check(p.m_next, t, d + 1));
}
public override void AssocType(Precedence.PrecType pt, int p)
{
string line;
int len, action = 0;
CSymbol s;
line = m_lexer.yytext;
prec += 10;
if (line[p] != ' ' && line[p] != '\t')
{
Error(33, m_lexer.m_pch, "Expected white space after precedence directive");
}
for (p++; p < line.Length && (line[p] == ' ' || line[p] == '\t'); p++)
{
;
}
while (p < line.Length)
{
len = m_lexer.m_start.Match(line, p, ref action);
if (len < 0)
{
Console.WriteLine(line.Substring(p));
Error(34, m_lexer.m_pch, "Expected token");
break;
}
m_lexer.yytext = line.Substring(p, len);
bool rej = false;
s = (CSymbol)((yyptokens)(m_lexer.tokens)).OldAction(m_lexer, m_lexer.yytext, action, ref rej);
s = s.Resolve();
s.m_prec = new Precedence(pt, prec, s.m_prec);
for (p += len; p < line.Length && (line[p] == ' ' || line[p] == '\t'); p++)
{
;
}
}
}
public abstract void AssocType(Precedence.PrecType pt, int n);