AA dsource project

[Saaa]

"dsimcha" <dsimcha at yahoo.com> wrote in message 
news:hcspk0$pk5$1 at digitalmars.com...
>A few weeks ago I mentioned that I was going to create some kind of forum 
>for
> people to post candidate associative array implementations to replace the
> current, much-despised implementation as the new "builtin" AA for D.  It's 
> now
> up at http://dsource.org/projects/aa/wiki/WikiStart .  SVN write access 
> should
> work for all registered dsource users.  If you have an associative array
> implementation that you feel is a significant improvement over the current
> builtin and are able/willing to license it under the Boost license, please
> post it for comment.
>
> Also, if you have a good benchmark for AAs, please create a benchmarks/
> directory and submit it.

Slightly related, I recently looked at the typecons code and was a bit 
surprised that the string to enum works by checking the string against all 
possible enum elements.
Couldn't a compile time perfect hashed aa fix this? :)

private template enumParserImpl(string name, bool first, T...)
{
    static if (first)
    {
        enum string enumParserImpl = "bool enumFromString(string s, ref "
            ~name~" v) {\n"
            ~enumParserImpl!(name, false, T)
            ~"return false;\n}\n";
    }
    else
    {
        static if (T.length)
            enum string enumParserImpl =
                "if (s == `"~T[0]~"`) return (v = "~name~"."~T[0]~"), 
true;\n"
                ~enumParserImpl!(name, false, T[1 .. $]);
        else
            enum string enumParserImpl = "";
    }
}