Fine-grained locals clearing

2009-12-10 Thread Rich Hickey
that this is strictly a lifetime management issue and does not change the nature of lazy sequences - they are real, linked data structures, the tail of which might not yet have been created. They are most emphatically *not* ephemeral streams of values. However, with fine-grained locals clearing,

Re: Fine-grained locals clearing

2009-12-10 Thread Garth Sheldon-Coulson
branches of the execution path and to emit code that > clears them at the point of last use in any particular branch. > > I'm happy to announce I have implemented this fine-grained locals > clearing in the compiler, in the 'new' branch. It should automatically > cover

Re: Fine-grained locals clearing

2009-12-10 Thread Stephen C. Gilardi
On Dec 10, 2009, at 9:10 AM, Rich Hickey wrote: > I'm happy to announce I have implemented this fine-grained locals > clearing in the compiler, in the 'new' branch. It should automatically > cover all cases in which the code doesn't explicitly reuse the head

Re: Fine-grained locals clearing

2009-12-10 Thread George Jahad
+1 As cool as the new branch is, this is the first compelling reason I've seen to go to my boss and say we need to switch to it now. Thanks Rich! On Dec 10, 6:40 am, "Stephen C. Gilardi" wrote: > On Dec 10, 2009, at 9:10 AM, Rich Hickey wrote: > > What a great change! We ran into the problem

Re: Fine-grained locals clearing

2009-12-10 Thread Richard Newman
> +1 As cool as the new branch is, this is the first compelling reason > I've seen to go to my boss and say we need to switch to it now. > > Thanks Rich! Speaking of which... I know the new branch is where Rich publishes his current work. Does anyone (Rich included!) have any opinion on whether

Re: Fine-grained locals clearing

2009-12-10 Thread Chouser
On Thu, Dec 10, 2009 at 2:26 PM, Richard Newman wrote: >> +1  As cool as the new branch is, this is the first compelling reason >> I've seen to go to my boss and say we need to switch to it now. >> >> Thanks Rich! > > Speaking of which... I know the new branch is where Rich publishes his > current

Re: Fine-grained locals clearing

2009-12-10 Thread Paul Mooser
h Hickey wrote: > I'm happy to announce I have implemented this fine-grained locals > clearing in the compiler, in the 'new' branch. It should automatically > cover all cases in which the code doesn't explicitly reuse the head - > including non-tail usage, destructurin

Re: Fine-grained locals clearing

2009-12-10 Thread Richard Newman
> Also, it may be very useful to try all your code on 'new' *without* > taking > advantage of the new features, and reporting back on any > breakage. That's more what I was thinking. While I find the new features interesting, I'm less jazzed about spending the time to build on features that

Re: Fine-grained locals clearing

2009-12-12 Thread Daniel Werner
On Dec 10, 3:10 pm, Rich Hickey wrote: > I'm happy to announce I have implemented this fine-grained locals > clearing in the compiler, in the 'new' branch. Is there a chance for this feature to find its way into master before Clojure 1.1 is released? -- You received thi

Re: Fine-grained locals clearing

2009-12-12 Thread Rich Hickey
On Sat, Dec 12, 2009 at 10:57 AM, Daniel Werner wrote: > On Dec 10, 3:10 pm, Rich Hickey wrote: >> I'm happy to announce I have implemented this fine-grained locals >> clearing in the compiler, in the 'new' branch. > > Is there a chance for this featur

How fine-grained is fine-grained locals clearing?

2010-06-22 Thread ann
(defn fn1 [a] (fn2 a) ) When is a cleared, before call to fn2 or after? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient w

Re: How fine-grained is fine-grained locals clearing?

2010-06-22 Thread ataggart
Before. On Jun 22, 3:46 am, ann wrote: > (defn fn1 [a] (fn2 a) ) > > When is a cleared, before call to fn2 or after? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from n

Re: How fine-grained is fine-grained locals clearing?

2010-06-22 Thread .Bill Smith
I do not understand the question. On Jun 22, 5:46 am, ann wrote: > (defn fn1 [a] (fn2 a) ) > > When is a cleared, before call to fn2 or after? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.

Re: How fine-grained is fine-grained locals clearing?

2010-06-22 Thread ataggart
It's an issue of when the object referenced by 'a' can be garbage collected. Rich is able to do some magic in the bytecode whereby the 'a' reference is set to null prior to the effective call to fn2 (and still pass the object), thus the object can be garbage collected whenever fn2 is done with it