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Postings from June 2001
Simon Cozens <simon@netthink.co.uk> opined: > On Tue, Jun 05, 2001 at 11:25:09AM +0100, Dave Mitchell wrote: > > This is the bit that scares me about unifying perl ops and regex ops: > > can we really unify them without taking a performance hit? > > Coupl'a things: firstly, we can make Perl 6 ops as lightweight as we like. > > Second, Ruby uses a giant switch instead of function pointers for their > op despatch loop; Matz says it doesn't make that much difference in > terms of performance. I think it would be very messy to have both types of operands in the same dispatch loop. I'd much rather have a 'regex start' opcode which calls a separate dispath loop function, and which then interprets any further ops in the bytestream as regex ops. That way we double the number of 8-bit ops, and can have all the regex-specific state variables (s, send etc in the earlier example) and logic separated out. > I don't know if I've mentioned this before, but > http://www-6.ibm.com/jp/developerworks/linux/001027/ruby_qa.html > was my interview with Matsumoto about his ideas for Perl 6 and his experiences > from Ruby. It's in Japanese, so http://www.excite.co.jp/world/url/ may help. "A talk of jewelry Perl developer From Mr. Simon Cozens to Ruby developer It is also as a pine It dies and is the question and reply to Mr. [squiggle]" :-)Thread Previous | Thread Next