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v8.3.0 proposal #14594

Merged
merged 157 commits into from
Aug 10, 2017
Merged

v8.3.0 proposal #14594

merged 157 commits into from
Aug 10, 2017

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addaleax
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@addaleax addaleax commented Aug 2, 2017

For real this time.

2017-08-??, Version 8.3.0 (Current), @addaleax

Notable changes

V8 6.0

The V8 engine has been upgraded to version 6.0, which has a significantly
changed performance profile.
#14574

More detailed information on performance differences can be found at
https://medium.com/the-node-js-collection/get-ready-a-new-v8-is-coming-node-js-performance-is-changing-46a63d6da4de

Other notable changes

  • DNS

    • Independent DNS resolver instances are supported now, with support for
      cancelling the corresponding requests.
      #14518

  • REPL

    • Autocompletion support for require() has been improved.
      #14409

  • Utilities

    • The WHATWG Encoding Standard (TextDecoder and TextEncoder) has
      been implemented.
      #13644

  • Added new collaborators

Commits

BridgeAR and others added 30 commits July 24, 2017 10:58
@BridgeAR @Fishrock123
repl: fix old history error handling
32ba8ae 
Backport-PR-URL: #14392
Backport-Reviewed-By: James M Snell <jasnell@gmail.com>

PR-URL: #13733
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
@Trott @Fishrock123
test: fix error handling test-http-full-response
b5d0a03 
The way it is currently written, test-http-full-response will fail if
there is a problem with spawning that doesn't include `ab` or `api` in
`stderr`, but it will fail with a misleading mismatched-calls
`common.mustCall()` error.

Alter the error handling so that it rethrows the actual error, providing
better information.

PR-URL: #14252
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@lance @Fishrock123
doc: fix minor typo in cluster.md
d2121ab 
Adds a missing `'` in code example.

PR-URL: #14353
Fixes: #14352
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
@csvwolf @Fishrock123
test: replace concatenation with template literals
72febfd 
Use template literals instead of string concatenation in
test/parallel/test-http-extra-response.js

PR-URL: #14296
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: David Cai <davidcai1993@yahoo.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@mcollina @Fishrock123
doc,stream: _transform happens one at a time
53ad91c 
Add a note to the stream docs specifying that at most a single
call to _transform can happen, and the provided callback()
should be used to process another chunk.

Fixes: #3208
PR-URL: #14321
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
@Fishrock123
repl: don't terminate on null thrown
34821f6 
Previous behavior was to assume an error is a proper error in the
repl module. A check was added to not terminate the process on thrown
repl errors that are `null` or `undefined`.

PR-URL: #14306
Fixes: #12373
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com
@drboyer @Fishrock123
doc: replace dead link in v8 module
dc0a26f 
PR-URL: #14372
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
@Helianthus21 @Fishrock123
test: replace string concat in test-fs-watchfile.js
3bc7d2a 
PR-URL: #14287
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@Oleksandr-Kushchak-i2 @Fishrock123
docs: add note about fs.rmdir()
f6a0343 
fs.rmdir() on the file (not directory) results in different errors on
Windows to everything else

Fixes: #8797
PR-URL: #14323
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
@nathansmile @Fishrock123
test: replace string concatenation with template
def98c6 
PR-URL: #14342
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
@evanlucas @Fishrock123
build,tools: do not force codesign prefix
5ab4471 
Allow passing the prefix in via the PKGDIR env var. This will allow us
to use this same script to codesign the binary tarball.

PR-URL: #14179
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@evanlucas @Fishrock123
build: codesign tarball binary on macOS
0ebb4df 
Previously, we were signing the binary that was released in the .pkg,
but not the binary released in the tarball.

PR-URL: #14179
Fixes: #11936
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@jkzing @Fishrock123
test: replace string concatenation with path.join
94c7331 
PR-URL: #14272
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
@jankjn @Fishrock123
test: use path.join for long path concatenation
c866c90 
PR-URL: #14280
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
@BridgeAR @Fishrock123
benchmark: add assert map and set benchmarks
9b104b4 
PR-URL: #14258
Reviewed-By: Refael Ackermann <refack@gmail.com>
@Trott @Fishrock123
test: move test-fs-largefile to pummel
956a473 
test-fs-largefile was disabled. It was fixed in bbf74fb but left in
disabled because it generates a 5Gb file. However, gibfahn had the
sensible suggestion of moving it to the pummel directory. Which is what
this change does.

In pummel, lint rules are applied, so this does necessitate changing a
pair of `var` declarations to `const`.

PR-URL: #14338
Refs: bbf74fb
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@XadillaX @Fishrock123
doc: add XadillaX to collaborators
b12924d 
PR-URL: #14388
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
@henryzxu @Fishrock123
doc: fixes default shell in child_process.md
4be373b 
Clarifies the default shell in Windows is process.env.ComSpec
and that cmd.exe is only used as a fallback. Functions whose
descriptions are affected include:
child_process.spawn, child_process.exec,
child_process.spawnsSync, and child_process.execSync.

PR-URL: #14203
Fixes: #14156
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
@gautamarora @Fishrock123
test: add comments for whatwg-url tests
0197ba0 
Added comments to whatwg-url tests that they should not be changed until
modifications are merged upstream as per "Web Platform Tests" guidelines

PR-URL: #14355
Fixes: #12793
Refs: https://github.com/nodejs/node/blob/master/doc/guides/writing-tests.md
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@Fishrock123
doc: fix typo in stream.md
f1b09c0 
PR-URL: #14364
Fixes: #14362
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
@vincentcn @Fishrock123
test: use path.join in async-hooks/test-tlswrap.js
3c92b78 
PR-URL: #14319
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
@Fishrock123
test: replace string concatenation with template
e237720 
PR-URL: #14286
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
@Fishrock123
readline: remove the caching variable
e54f75b 
Line 486 and 525 contain for loops where a length property is cached in
a variable (for example, itemLen). This used to be a performance
optimization, but current V8 handles the optimization internally.

These caching variables are removed, and the length property is used
directly instead.

PR-URL: #14275
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
@jkzing @Fishrock123
test: improve fs.exists coverage
99104e1 
By adding a test case using a path with illegal protocol

PR-URL: #14301
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
@decareano @Fishrock123
test: delete obsolete test-sendfd.js
11ae8c3 
This test was disabled in 2011 and is no longer useful without
modifications.

PR-URL: #14334
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
@Trott @Fishrock123
test: fix flaky test-net-write-after-close
9b22acc 
Replace 250ms timer with event-based logic to make test robust.

PR-URL: #14361
Fixes: #13597
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
@refack @Fishrock123
doc: error message are still major
592787e 
PR-URL: #14375
Refs: #13937
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
@aqrln @Fishrock123
test: move timing-dependent tests to sequential
953736c 
Move test-http-server-keep-alive-timeout-slow-server and
test-http-server-keep-alive-timeout-slow-client-headers from parallel to
sequential to resolve test flakiness on freebsd10-64.

Fixes: #14033
Refs: #9317
PR-URL: #14377
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
@nanaya @Fishrock123
tools: always include llvm_version in config
c0ea5d8 
Also used in common.gypi to check whether a flag is needed or not
based on llvm version.

PR-URL: #14077
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Refael Ackermann <refack@gmail.com>
@nanaya @Fishrock123
tools: skip workaround for newer llvm
ebb9090 
PR-URL: #14077
Fixes: #14076
Refs: https://svnweb.freebsd.org/ports/head/www/node/Makefile?revision=444555&view=markup
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Refael Ackermann <refack@gmail.com>
addaleax and others added 5 commits August 9, 2017 20:07
@addaleax
child_process: fix handle passing w large payloads
1f16c43 
Fix situations in which the handle passed along with a message
that has a large payload and can’t be read entirely by a single
`recvmsg()` call isn’t associated with the message to which it
belongs.

PR-URL: #14588
Fixes: #13778
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
@addaleax
zlib: fix crash when initializing failed
a813294 
Unset `mode_` when initializing the zlib stream failed, so that
we don’t try to call the zlib end functions (`deflateEnd()` etc.)
when cleaning up in `ZCtx::Close()`.

Fixes: #14178
Ref: #13098
PR-URL: #14666
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Alexey Orlenko <eaglexrlnk@gmail.com>
@mcollina @addaleax
querystring: avoid indexOf when parsing
e813cfa 
Fixes a performance regression in body-parser with V8 6.0.
Removes the use of an auxiliary array, and just query the object
directly.

PR-URL: #14703
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
@addaleax
doc: add gabrielschulhof to collaborators
ad901ed 
PR-URL: #14692
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
@addaleax
2017-08-09, Version 8.3.0 (Current)
fb88fa1 
V8 6.0:

  The V8 engine has been upgraded to version 6.0, which has a significantly
  changed performance profile.
  [#14574](#14574)

  More detailed information on performance differences can be found at
  https://medium.com/the-node-js-collection/get-ready-a-new-v8-is-coming-node-js-performance-is-changing-46a63d6da4de

Other notable changes:

* **DNS**
  * Independent DNS resolver instances are supported now, with support for
    cancelling the corresponding requests.
    [#14518](#14518)

* **N-API**
  * Multiple N-API functions for error handling have been changed to support
    assigning error codes.
    [#13988](#13988)

* **REPL**
  * Autocompletion support for `require()` has been improved.
    [#14409](#14409)

* **Utilities**
  * The WHATWG Encoding Standard (`TextDecoder` and `TextEncoder`) has
    been implemented as an experimental feature.
    [#13644](#13644)

* **Added new collaborators**
  * [XadillaX](https://github.com/XadillaX) – Khaidi Chu
  * [gabrielschulhof](https://github.com/gabrielschulhof) – Gabriel Schulhof
@addaleax
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addaleax commented Aug 9, 2017

I’ve updated this PR with all remaining PRs that contain fixes for confirmed bugs/regressions, including #14703 , plus ad901ed because it’s harmless and fits in well as a notable change.

I’m not sure what to do given that CI isn’t up. A local make test passes, though.

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cjihrig commented Aug 9, 2017

Kicked off the release CI with the new changes.

@MylesBorins
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We should hold off on a release until we can test with Ci + Citgm

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cjihrig commented Aug 9, 2017

Agreed. But the ARM release job is still running, so I'm glad I kicked it off when I did. Any word on the CI?

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CI: https://ci.nodejs.org/job/node-test-pull-request/9574/
CITGM: https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/946/

evanlucas
evanlucas approved these changes Aug 9, 2017
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LGTM if ci is happy

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CITGM looks good (although AIX failed completely), CI is not exactly green and has a couple flaky tests + infra failures but nothing new or concerning (imo) :shipit: (one ARM machine is still running right now)

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cjihrig commented Aug 10, 2017

@MylesBorins are you able to sign off on this?

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refack commented Aug 10, 2017

The node-iconv CitGM showed on windows does not repro locally.

refack
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CitGM is clean (i.e. no new failures)

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Quick follow up on CITGM

Three modules seem legitimately broken right now, a few more seem flaky (not sure if it is our CI systems or the modules themselves.)

It doesn't appear that anything major is broken with this release.

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LGTM

@cjihrig
Working on v8.3.1
08b662a 
PR-URL: #14594
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
@cjihrig cjihrig merged commit 08b662a into v8.x Aug 10, 2017
@cjihrig cjihrig deleted the v8.3.0-proposal branch August 10, 2017 02:02
@cjihrig cjihrig mentioned this pull request Aug 10, 2017
Merged
cjihrig added a commit to nodejs/nodejs.org that referenced this pull request Aug 10, 2017
@cjihrig
Blog: v8.3.0 release post
eb70efc 
Refs: nodejs/node#14594
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RE nodejs/nodejs.org#1334: are not "add console.count() and console.clear()" notable changes?

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kyrylkov commented Aug 10, 2017 •
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@addaleax @cjihrig are spread properties for object literals not supported in v8.3.0?

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vsemozhetbyt commented Aug 10, 2017 •
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@kyrylkov Supported:

> process.versions.node
'8.3.0'
> process.versions.v8
'6.0.286.52'
> const { key1, ...rest } = { key1: 1, key2: 2, key3: 3 };
undefined
> rest
{ key2: 2, key3: 3 }
> const copy = { key1: 1, ...rest };
undefined
> copy
{ key1: 1, key2: 2, key3: 3 }

Refs: https://v8project.blogspot.com/2017/06/v8-release-60.html

@kyrylkov
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@vsemozhetbyt Yep, sorry. babel-node issue.

> process.versions.node
'8.3.0'
> process.versions.v8
'6.0.286.52'
> const { key1, ...rest } = { key1: 1, key2: 2, key3: 3 };
SyntaxError: repl: Unexpected token (1:14)
> 1 | const { key1, ...rest } = { key1: 1, key2: 2, key3: 3 };
    |               ^

@kyrylkov kyrylkov mentioned this pull request Aug 10, 2017
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@mhdawson
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A bit late but I agree changing the N-API version is not necessary quite yet.

@luisfarzati luisfarzati mentioned this pull request Aug 18, 2017
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