Re: [boost] Clang: Open-source C/C++ front end under development

From: David Abrahams (dave_at_[hidden])
Date: 2007-09-02 12:56:24

on Sat Sep 01 2007, Chris Lattner <clattner-AT-apple.com> wrote:

> On Sep 1, 2007, at 2:14 PM, David Abrahams wrote:
>> on Sat Sep 01 2007, Chris Lattner <clattner-AT-apple.com> wrote:
>>
>>> Can you give me a specific example of where making the entire lexer a
>>> template would be more useful than adding a couple of virtual method
>>> calls?  It isn't meaningful to lex anything other than a sequence of
>>> char's
>>
>> You're serious?  It's meaningless to lex UTF-32?
>
> It's not meaningless, but templatizing the entire lexer (which  
> includes the preprocessor) is not necessarily the best way to achieve  
> this.

Granted.  It was just the first example that popped into my head.  My
point was simply that, if you're interested in creating a flexible
toolkit out of which people can build systems with the highest
efficiency, static polymorphism in its interfaces is a virtual (no pun
intended) necessity.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com
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