public AstLeaf(Token token)
{
_token = token;
}
public ParseException(Token token, string msg)
: base("syntax error around " + (token == null ? "" : token.Location) + ". " + msg)
{
}
public NameNode(Token token)
: base(token)
{
}
public ParseException(Token token)
: this(token, "")
{
}