public new static Expression Parse(TokenParser p)
{
Expression v1 = Mul.Parse(p);
if (v1 == null)
{
return(null);
}
Expression v2;
Token t = p.PeekNext();
if (t == null)
{
return(v1);
}
switch (t.Type)
{
case TokenType.OperatorAdd:
p.CommitPeek();
v2 = Parse(p);
if (v2 == null)
{
return(null);
}
return(new A(v1, v2));
case TokenType.OperatorSub:
p.CommitPeek();
v2 = Parse(p);
if (v2 == null)
{
return(null);
}
return(new S(v1, v2));
}
return(v1);
}
public new static Expression Parse(TokenParser p)
{
Value v1 = Value.Parse(p);
if (v1 == null)
{
return(null);
}
Expression v2;
Token t = p.PeekNext();
if (t == null)
{
return(v1);
}
switch (t.Type)
{
case TokenType.OperatorMul:
p.CommitPeek();
v2 = Parse(p);
if (v2 == null)
{
return(null);
}
return(new M(v1, v2));
case TokenType.OperatorDiv:
p.CommitPeek();
v2 = Parse(p);
if (v2 == null)
{
return(null);
}
return(new D(v1, v2));
}
return(v1);
}
