Re: Use "ropes" for string concatenation

From: Date: Tue, 24 Mar 2015 11:58:22 +0000
Subject: Re: Use "ropes" for string concatenation
References: 1 2 3 4  Groups: php.internals 
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Hey: On Tue, Mar 24, 2015 at 7:51 PM, Nikita Popov <nikita.ppv@gmail.com> wrote: > On Tue, Mar 24, 2015 at 10:28 AM, Dmitry Stogov <dmitry@zend.com> wrote: >> >> I thought about something like this :) >> In my opinion UString is really not a proper way to implement Unicoide, >> but I agree not break anything in current stage. >> Anyway, please review the first PR (in my opinion it is safe to commit), >> but you may find some other issues. >> >> Thanks. Dmitry. > > > First PR looks okay to me. One question: Why the separate INIT and ADD > opcodes? They seem pretty much the same, just one using a hardcoded 0 > instead of ex_val. > > Regarding exception-safety - is the problem that doing an EG(exception) > check and releasing the rope is too expensive? that won't work if : <?php function a() { throw new exception($a); return "xxx"; } try { $a = "a ${a()} "; } catch (Exception $a) { } thanks thanks > > Nikita -- Xinchen Hui @Laruence http://www.laruence.com/

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