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10:20:07  <trungl-bot>Tree closed by machenbach@chromium.org: Tree is closed (maintenance)
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10:31:13  <trungl-bot>Tree opened by machenbach@chromium.org: Tree is open
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14:15:41  <trungl-bot>Tree closed by machenbach@chromium.org: Tree is closed (maintenance)
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16:39:17  <jugglinmike>caitp- / arv Can you tell me about V8's support for modules? There's the `--harmony_modules` flag, but I can't figure out what it enables... maybe a legacy implementation?
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16:42:00  <jugglinmike>or maybe caitp (without the dash)
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16:45:47  <caitp->aklein started working on that, not sure how long ago
16:45:58  <caitp->I don't think any of it is "legacy" though, could be wrong?
16:47:32  <arv>the legacy stuff is gone
16:47:58  <arv>aklein: updated it to use the new syntax and he started on working on the binding semantics
16:48:23  <arv>there are some cctests for it
16:48:33  <arv>no loader yet though
16:50:26  <caitp->it's really hard to go through the blame for flag-definitions.h because everyone seems to change the whole block of HARMONY_INPROGRESS stuff whenever any bit of it changes =)
16:51:51  <jugglinmike>hmm, alright. thanks!
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17:16:15  <aklein>jugglinmike: re: modules, all the flag does for now is parse modules syntax (with the modern spec)
17:16:41  <aklein>jugglinmike: I've got a patch that actually adds some linking logic, but it's not ready to land yet and I've been detoured by a variety of things
17:16:47  <aklein>and loaders are still waiting on the loader spec
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17:32:57  <trungl-bot>Tree closed by buildbot@chromium.org: Tree is closed (Automatic: "Mjsunit" on http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20debug%20-%20code%20serializer/builds/2732 "V8 Linux - debug - code serializer" from fcfb080eb9a637f0ae066bed4c45095e60df8a84: bbudge@chromium.org)
17:33:22  <caitp->the loader spec, which hasn't changed in 3 months apparently
17:33:25  <caitp->huh
17:34:58  <aklein>caitp-: bterlson and myself poked dherman about this yesterday
17:35:18  <aklein>so he at least knows we're interested in it
17:52:56  <jugglinmike>aklein: thanks. you'll have to forgive me, though--I'm not sure what behavior I should expect if it only parses the syntax
17:53:32  <caitp->is this test262 stuff?
17:53:35  <jugglinmike>naively, I would expect something like `export var x = 0;` to execute without error
17:54:10  <jugglinmike>caitp-: kinda, I'm just trying to see if I can use V8 as a sanity check for new tests
17:54:29  <aklein>jugglinmike: yes, that'll work right now, but from the point of JS I would say the current modules implementation is too incomplete to bother poking
17:54:50  <aklein>jugglinmike: the tests we have right now are written in C++ and test internals of the system
17:54:57  <caitp->i would expect most of the module stuff to be out of scope for test262, but maybe I'm wrong
17:55:08  <jugglinmike>d8 --harmony --harmony_modules -e "export var x = 1;"
17:55:14  <jugglinmike>unnamed:1: SyntaxError: Unexpected token export
17:55:25  <aklein>jugglinmike: "export" is only allowed in a module body
17:55:33  <caitp->--harmony_modules probably isn't parsing as a module, just enabling the feature
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17:56:01  <jugglinmike>Oh! How do I specify that the input code is module code?
17:56:06  <aklein>jugglinmike: and without a module loader spec it's hard to treat anything as a module body
17:56:14  <jugglinmike>ah
17:56:19  <caitp->you can use the api to do it, I think?
17:56:24  <caitp->well probably not
17:56:42  <caitp->it's probably just cctests that are doing any of that right now
17:56:43  <aklein>jugglinmike: I think if you do: "d8 --module foo.js" it'll treat foo.js as a module
17:56:50  <jugglinmike>this is a weird position for implementors to be in, for sure
17:56:53  <aklein>(I added this a couple months ago, can't remember)
17:57:10  <aklein>yep, that works
17:57:17  <jugglinmike>nice! thanks aklein
17:57:20  <aklein>(it turns on the --harmony-modules flag itself)
17:57:28  <aklein>most export syntax is supported
17:57:46  <jugglinmike>good good
17:57:48  <aklein>imports parse, I think, but don't actually add any bindings
17:58:06  <jugglinmike>got it
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18:01:55  <caitp->bnoordhuis: you probably need to add exceptions for some/many tests in blink/chromium, and fix them after a successful roll, but I don't know what I'm talking about
18:02:23  <bnoordhuis>i'd be happy to do that if i knew how/where/what
18:02:45  <caitp->i had to do a few of those for some fixes a while back, let me see if the cls are still open
18:02:50  <caitp->er, still visible
18:03:00  <bnoordhuis>but i _think_ it should be a matter of just updating the sandbox. i made sure the necessary changes landed upstream
18:04:49  <caitp->did you make sure blink and cr test bots pass with the change landed?
18:06:36  <caitp->the roll cl had a number of failures, like http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_gn_rel/builds/92652
18:06:39  <bnoordhuis>https://codereview.chromium.org/1133653002 is the sandbox CL if that is what you mean and it's all green
18:07:36  <caitp->you might try to reland the other thing, and make sure to add chromium bots to make sure
18:07:51  <bnoordhuis>the other thing?
18:08:04  <bnoordhuis>you mean the CLOCK_MONOTONIC_COARSE cl?
18:08:09  <caitp->yeah
18:08:17  <bnoordhuis>okay. how do i add bots?
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18:09:45  <caitp->the syntax is sort of weird, i'd have to look it up on the dev guide
18:09:45  <bnoordhuis>btw, those roll failures are caused by this: ../../sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc:**CRASHING**:seccomp-bpf failure in syscall 0229
18:09:58  <bnoordhuis>and that's clock_getres getting denied because of the clock id
18:10:14  <bnoordhuis>so my best guess still is a sandbox that hasn't been updated yet
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18:25:25  <trungl-bot>Tree opened by bbudge@google.com: open (reverted 28687)
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