World: r3wp
[Core] Discuss core issues
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Gabriele 5-Mar-2010 [16002x5] | this is what i was doing: |
func*: func [ "Defines a user function with given spec and body." [catch] spec [block!] {Help string (opt) followed by arg words (and opt type and string)} body [block!] "The body block of the function" /local f ] [ throw-on-error [ use [*temp*] [ f: make function! spec compose/only/deep [ in-func *temp*: do this-function-name out-func *temp* (body) ] body: second :f body/7: make function! [] body/7 :f ] ] ] | |
this-function-name: [get in disarm try [1 / 0] 'where] | |
with in-func: func [name] [...] and out-func: func [name return-value [any-type!]] [... get/any 'return-value] | |
Ladislav's TFUNC probably handles more cases. The problem is however making it "transparent" enough which is a bit tricky, especially since you need to catch return and exit so i think you can't avoid having a sub function. | |
Henrik 5-Mar-2010 [16007x2] | if I'm being consistent, wouldn't it be enough to simply scan for RETURN and EXIT words? |
it limits flexibility of what I can do in a function, I know. | |
Geomol 5-Mar-2010 [16009] | That this-function-name is kinda cool, but a trick with an overhead. Would it be an idea, if we could get the function name with self/name or something like that? |
Dockimbel 5-Mar-2010 [16010] | I just hit the following issue (2.7.6 on Windows XP SP3 and Linux Libc6, same in 2.7.7) : >> wait [596:0:0] (escape) >> wait [597:0:0] == none It seems that 597 hours is the maximum accepted by WAIT (Why the hell this kind of information is not in the online documentation of WAIT native?) Will this issue be fixed if reported to RAMBO? Very doubtful. Should REBOL be open-sourced? Yes. |
Henrik 5-Mar-2010 [16011] | I don't think you should report it to RAMBO. Keep it predictably unfixed and undocumented forever. |
Dockimbel 5-Mar-2010 [16012] | This issue is making my scheduler lib useless for general purpose usage (won't work for jobs scheduled in more than 24 days). As usual, stuck at 99% of the goal... |
Henrik 5-Mar-2010 [16013] | post it to RAMBO and I'll flag Carl on R3 chat |
Dockimbel 5-Mar-2010 [16014] | Henrik: how many native bugs have been fixed in R2 from RAMBO reports since 2 years? There's currently 959 open tickets in RAMBO, how much of the reported issues and bugs will ever be fixed? |
Henrik 5-Mar-2010 [16015] | Fine, don't report it. Then you can be absolutely sure it will never be fixed. |
BrianH 5-Mar-2010 [16016] | Doc, how many R2 releases have happened in 2 years? One, and it wasn't a bug-fix release. But more releases are coming, and more often. So report stuff in RAMBO - it will do until we get those tickets migrated to CureCode. |
Cyphre 5-Mar-2010 [16017] | Dockimbel, couldn't you split longer jobs into multiple shorter waits? |
Paul 5-Mar-2010 [16018] | Just wrap the wait in a loop ;-) |
Carl 6-Mar-2010 [16019x2] | Huh? Code should never WAIT that long.... Bad coding practice because time-of-day and timers are not always in-sync. Wake up at least once an hour, and check NOW/precise, then recompute. I suppose this could be a mezz. |
The docs need to add that WAIT is a low level function, intended mainly for port event timing, not for TOD cron style timing. | |
Dockimbel 6-Mar-2010 [16021] | Cyphre: yes, that was one of the options I've considered at the beginning, but when I saw that I could have timers working for more than 24 hours, I've choosed the long waiting timer way, because it was much simplier to implement and looked more reliable. |
Gregg 6-Mar-2010 [16022x2] | Docs are the key. If you can go up to almost 600 hours, why does it stop there, at what seems like an arbitrary value? |
I imagine we do a lot of things in REBOL that we shouldn't do, because nobody told us not to. :-) | |
Dockimbel 6-Mar-2010 [16024x2] | Carl: code (I guess you meant "application") is not waiting, this is the minimal code that shows the issue, in the real application, there's a lot of other ports (mostly network, but can be input devices too) in the event loop. I use a timer value to trigger CRON-like deferred actions for a few seconds or several days. About time-of-day and timers sync issue, I use online sync services to keep the local machine time-of-day right. Stopping a few times per day to resync crossed my mind but it looked overkill after a few tests. Now knowing the limitations, I need to rewrite my code. |
Gregg: exactly. I was expecting a 24 hours limit, not that weird 597...so I went the wrong way. I expect docs to tell me the technical limitations if there are any. That's one of the advantages of having the sources of your tools, you can just check the sources to see or infer the limitations and the pros/cons of your higher level choices. | |
Izkata 6-Mar-2010 [16026x3] | >> wait 596:31:24 == none >> wait 596:31:23 (escape) >> to-integer 596:31:23 == 2147483 ...This number looks extremely familiar, but I can't place it. Google searches bring up bugs involving it in other languages, too, but that's it at first glance |
Gotcha: 32-bit integer limits are -2,147,483,648 to +2,147,483,647 | |
Got an overflow, this waits for 1 second: >> wait (596:31 * 2) + 0:00:48 | |
BrianH 6-Mar-2010 [16029] | Well then that limit seems reasonable, if a little generous. Let's declare it a feature :) |
Gabriele 7-Mar-2010 [16030] | In other words, the limit is 2'147'483'647 milliseconds. |
Andreas 8-Mar-2010 [16031x2] | Is RAMBO still monitored for R2-related bugs? |
Well, seems like it is ... | |
Gabriele 9-Mar-2010 [16033] | I make sure every day that spam is removed and actual tickets are committed. Other than that, I don't know. |
Henrik 9-Mar-2010 [16034] | it doesn't matter if it's monitored now, as long as bugs are cataloged and documented. |
Dockimbel 9-Mar-2010 [16035] | Not processing user's reports on your product is a good way to not build a community of users. If users care to spend their (valuable) time in reporting issues or defects, maybe RT can also spend some time in fixing them (at least those native ones). But maybe I'm the only one interested in R2 bug fixing... |
BrianH 9-Mar-2010 [16036x3] | Nope. But those bugs only get fixed in releases. |
And you have said that you will help process the RAMBO tickets when the time comes, by assisting with migrating them to CureCode where they can be dealt with. | |
I expect that there will be a new R2 release relatively soon, but we can't schedule it yet due to external circumstances that affect the people working on it. That doesn't mean that work on it has stopped or should stop, and it doesn't mean that you should give up on reporting bugs. Please use RAMBO until we can retire it - the tickets should be there when we need them. | |
Henrik 9-Mar-2010 [16039] | Reporting the wait bug documents it, even if it gets fixed or not, so other users can (as I do) browse through RAMBO to either confirm the bug or to see if someone offers a fix or a workaround. It would be a problem if RAMBO was a closed system where you could not freely study the reports, but you can, and Curecode is the same. Do people not ever take notes, when stumbling onto something unusual? |
Dockimbel 9-Mar-2010 [16040] | Brian: no problem for assisting in migrating RAMBO to CC, even if the tool is not the main issue IMO. |
BrianH 9-Mar-2010 [16041] | Right, the tool is not the (only) issue. The big issue is that since there isn't a schedule for when the next release of R2 will be due to outside considerations, people think that the bugs are being ignored, the release isn't coming soon and noone is working on it. None of those are true, so it's a perceptual problem. In the meanwhile, we continue to work on a new R2 as time permits, no worries. |
Graham 9-Mar-2010 [16042] | And same applies for reporting spam on the blog comments ... no point in reporting it if it does not get removed. |
Nicolas 11-Mar-2010 [16043] | Has anyone researched the minimum operating system environment required to run rebol? I think that was one of the goals of Rebol 3 at one point. |
Henrik 11-Mar-2010 [16044] | Does anyone know an implementation of the Fletcher checksum algorithm in REBOL or does REBOL 2 do this? |
Gregg 12-Mar-2010 [16045] | I checked Henrik, since it sounded familiar, but I don't have a REBOL version. |
Janko 17-Mar-2010 [16046] | Anyone had/has any need / desire to make a Rebol to RServe (R - the statistics language) library / protocol? |
jocko 18-Mar-2010 [16047] | I am not an R user, but I think of interest to offer such links between languages : I have done a simple Matlab extension for Rebol and if I find enough time, I will do also a Python extension |
jdishun 23-Mar-2010 [16048] | I have done several searches but haven't found what I'm looking for. I've looked at binding discussions until I went cross-eyed. Not a complaint, just an explanation of why I am consulting the "biological repository". I want to build a function that can access its own name, so I can assign it to a name and then just invoke that name to activate functionality using the name . The simplest example is -- name [] [......print name]. I would rather not use an object but will if necessary. My apologies if everyone else knows how to do this. |
ChristianE 23-Mar-2010 [16049x3] | Jim, bad news first: By design functions in REBOL have no name. In REBOL, Functions are first class values which /may/ be referenced by one word, by more than one word or by no word at all |
E.g.: | |
>> calc: reduce [func [v] [v / 2] func [v] [v * 2] func [v] [v * 3]] == [func [v][v / 2] func [v][v * 2] func [v][v * 3]] >> do reduce [first calc second calc third calc 1] == 3 >> set [half double triple] calc == [func [v][v / 2] func [v][v * 2] func [v][v * 3]] >> half double triple 1 == 3 >> set [a b c] first calc | |
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