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| <xaxxon> | hrmmm... SetFlagsFromCommandLine is working, but I can't seem to figure out hw to use the SetFlagsFromString version... should: v8::V8::SetFlagsFromString("--expose-gc", strlen("--expose-gc")); work? I tried that and without the --'s. Or is it not allowed to call both the CmmandLine and String versions ? |
| 00:27:09
| <xaxxon> | huh. Seems like they're mutually exclusive.. weird and sad |
| 00:27:42
| <xaxxon> | never mind. |
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| <xaxxon> | sometheing weird is going on |
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| 19:56:07
| <caitp> | alright I haven't done anything in the past few days, and haven't seen any bugs indicating that I broke stuff, whats up |
| 19:56:43
| <aklein> | hehe |
| 19:57:02
| <aklein> | well there have only been a few canaries, maybe the breakage reports are just lagging :) |
| 20:05:18
| <caitp> | hey adam, do we have target toolchain versions anywhere? I was thinking about moving some of the template members in parser-base.h into a file that doesn't get included all over the place |
| 20:05:25
| <jugglinmike> | caitp: I've been trying to pick up the slack on "breaking things," but aklein won't let me |
| 20:06:04
| <caitp> | haha :) |
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| 20:07:05
| <aklein> | hey now, I didn't design test-parsing.cc, I just work here |
| 20:14:22
| <caitp> | so, about the Expression vs AssignmentExpression thing |
| 20:14:39
| <caitp> | the only other issue I can think of is that it is incompatible with JSC's current behaviour |
| 20:14:44
| <caitp> | and possibly chakra, haven't checked |
| 20:15:28
| <caitp> | spidermonkey seems to be happy to throw the SyntaxError, so maybe it's fine in the gaia/b2g market |
| 20:16:09
| <aklein> | I'll check chakra |
| 20:16:18
| <jugglinmike> | aklein caitp: https://github.com/Microsoft/ChakraCore/issues/147 |
| 20:17:06
| <aklein> | aha |
| 20:17:36
| <caitp> | it's probably a young enough feature that it doesn't matter |
| 20:17:40
| <caitp> | but you never know |
| 20:17:57
| <jugglinmike> | I want to break the JavaScript that relies on it |
| 20:18:17
| <caitp> | yeah but vendors usually don't :( |
| 20:18:29
| <caitp> | could try it and see if anything breaks in canary |
| 20:19:50
| <bnoordhuis> | just thought i'd mention chakra has async/await. no pressure |
| 20:20:10
| <bnoordhuis> | (subtle, eh?) |
| 20:20:24
| <caitp> | i think that's on Dan's radar |
| 20:21:05
| <bnoordhuis> | i looked briefly into it this week; parsing it is actually harder than i expected |
| 20:21:10
| <caitp> | I could probably implement parsing for it today just out of boredom, but i'll leave the desugaring to him |
| 20:21:21
| <caitp> | oh? |
| 20:21:40
| <bnoordhuis> | there's a couple of places in the parser where it has heuristics for Token::FUNCTION |
| 20:22:00
| <bnoordhuis> | those would need to be updated to understand Token::ASYNC as well (including the no-newline thing) |
| 20:22:16
| <caitp> | you mean the IIFE heuristics? |
| 20:23:00
| <bnoordhuis> | uh, possibly. it was two days ago and my short-term memory's half-life is pretty bad |
| 20:23:28
| <caitp> | it's basically just stuff to try to eagerly compile IIFEs, I think |
| 20:56:41
| <trungl-bot`> | Tree closed by [email protected]: Tree is closed (Automatic: "Check" on http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug/builds/1077 "V8 Linux - arm64 - sim - nosnap - debug" from 6fc3149939deb59d06f2d70e85306ece5272ff0c: [email protected]) |
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| 21:06:16
| <aklein> | jugglinmike: so only Spidermonkey gets this right? |
| 21:06:45
| <jugglinmike> | aklein: that and es6-draft, of course |
| 21:06:54
| <aklein> | heh, naturally |
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| <trungl-bot`> | Tree opened by [email protected]: Tree is open (Automatic: ＼(^o^)／) |
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| 21:37:48
| <jugglinmike> | aklein: Is there ball in my court now? |
| 21:40:06
| <aklein> | jugglinmike: yup, once you've got an lgtm you're free to land. easiest way is to hit the "commit queue" button |
| 21:40:14
| <aklein> | (checkbox? depends on which UI you're using) |
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| <jugglinmike> | checkbox clicked! |
| 21:42:22
| <aklein> | thanks! and sorry for the rather long roundabout. at least it'll be easier next time? |
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| 21:43:19
| <aklein> | I'm a little confused as to why the spec restricts for-of in this way |
| 21:43:35
| <aklein> | there are already plenty of nonsensical expressions you can put in that position |
| 21:44:05
| <caitp> | i'm sure they would restrict for-in the same way if it were web compatible |
| 21:44:06
| <aklein> | is there some ambiguity it helps with (if so, I would've thought it'd bite us in some way already) |
| 21:45:36
| <aklein> | sure, but they can't, so it seems weird to add this slight incompatibility. ah well, that's ES2015 for you |
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| 21:53:03
| <jugglinmike> | aklein: but they've also refrained from some tempting cases to break parity |
| 21:53:30
| <jugglinmike> | the one I always think about is how generator functions and arrow functions are not forced into strict mode |
| 21:53:56
| <aklein> | "refactoring hazard" is the phrase I keep hearing |
| 21:54:17
| <jugglinmike> | yah |
| 21:55:49
| <caitp> | if rick gets to attend tc39, you could probably get a seat there too and cast another vote against that in the future |
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| 22:00:45
| <jugglinmike> | I think that ship has sailed, caitp |
| 22:01:05
| <jugglinmike> | or are you saying, against that practice in general? |
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| <caitp> | against that practice in general |
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| 22:12:41
| <jugglinmike> | aklein: on to another bug. Is there anything I should know about triggering desugaring logic in parser.cc ? |
| 22:13:05
| <jugglinmike> | or should I expect to see those changes from `d8 -e` immediately after a build in all cases? |
| 22:13:51
| <jugglinmike> | "see those changes" -> "see new behavior due to changes to that logic" |
| 22:14:59
| <aklein> | jugglinmike: should be immediate |
| 22:15:12
| <jugglinmike> | ok, thanks! |
| 22:15:19
| <aklein> | as long as the code is executing, it had to run through parser.cc first |
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