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(vee-eight-4.9) Replace more deprecated V8 API usage #5204

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Continuing from #5159, this PR replaces deprecated uses of SetAccessor and most uses of SetWeak on the vee-eight-4.9 branch.

The use of SetWeak in src/node_buffer.cc is more involved because it expects to get a handle to the weak object in the weak callback. I need to understand the buffer code a bit more before attempting to change that.

EDIT: the original change for SetWeak usage in node_contextify was flawed. I have removed that.

Remaining work:

See also: #4869
R=@bnoordhuis , @targos
/cc @nodejs/v8

@ofrobots ofrobots added the v8 engine Issues and PRs related to the V8 dependency. label Feb 12, 2016
Dynamic checks that CallbackInfo holds an ArrayBuffer handle can be
converted into compiler enforced checks. Removed unused code, and
other minor cleanup.
if (object->ByteLength() != 0)
CHECK_NE(data, nullptr);

object->SetAlignedPointerInInternalField(0, data);
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It would be nicer to make the field index a class constant.

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Can we maybe make a comment in the header that the first internal field is reserved by node? Since switching to using array buffer I've been writing experimental modules that also make use of these fields.

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Done. In the light of wanting a comment in the header, I chose to make it a header constant rather than class constant. 8be49858fab.

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LGTM with a suggestion.

@indutny
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indutny commented Feb 21, 2016

LGTM

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CI: https://ci.nodejs.org/job/node-test-pull-request/1721/

Updating the use of SetWeak in node_contextify.cc might be a non-trivial amount of work. Let's do it in a follow-on PR. I haven't looked at NewExternal in string_bytes.cc yet.

Old style SetWeak is now deprecated, and weakness now works like
phantom references. This means we no longer have a reference to the
object in the weak callback. We use a kInternalFields style weak
callback which provides us with the contents of 2 internal fields
where we can squirrel away the native buffer pointer.

We can no longer neuter the buffer in the weak callback, but that
should be unnecessary as the object is going to be GC'd during the
current gc cycle.
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Second CI (also includes follow-on #5392): https://ci.nodejs.org/job/node-test-pull-request/1749/

ofrobots added a commit that referenced this pull request Feb 25, 2016
PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit that referenced this pull request Feb 25, 2016
PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit that referenced this pull request Feb 25, 2016
Dynamic checks that CallbackInfo holds an ArrayBuffer handle can be
converted into compiler enforced checks. Removed unused code, and
other minor cleanup.

PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit that referenced this pull request Feb 25, 2016
Old style SetWeak is now deprecated, and weakness now works like
phantom references. This means we no longer have a reference to the
object in the weak callback. We use a kInternalFields style weak
callback which provides us with the contents of 2 internal fields
where we can squirrel away the native buffer pointer.

We can no longer neuter the buffer in the weak callback, but that
should be unnecessary as the object is going to be GC'd during the
current gc cycle.

PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
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Landed as d47a982...7a863af.

@ofrobots ofrobots closed this Feb 25, 2016
ofrobots added a commit to ofrobots/node that referenced this pull request Mar 1, 2016
PR-URL: nodejs#5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit to ofrobots/node that referenced this pull request Mar 1, 2016
PR-URL: nodejs#5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit to ofrobots/node that referenced this pull request Mar 3, 2016
PR-URL: nodejs#5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit to ofrobots/node that referenced this pull request Mar 3, 2016
PR-URL: nodejs#5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit to ofrobots/node that referenced this pull request Mar 3, 2016
Dynamic checks that CallbackInfo holds an ArrayBuffer handle can be
converted into compiler enforced checks. Removed unused code, and
other minor cleanup.

PR-URL: nodejs#5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit to ofrobots/node that referenced this pull request Mar 3, 2016
Old style SetWeak is now deprecated, and weakness now works like
phantom references. This means we no longer have a reference to the
object in the weak callback. We use a kInternalFields style weak
callback which provides us with the contents of 2 internal fields
where we can squirrel away the native buffer pointer.

We can no longer neuter the buffer in the weak callback, but that
should be unnecessary as the object is going to be GC'd during the
current gc cycle.

PR-URL: nodejs#5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit that referenced this pull request Mar 4, 2016
PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit that referenced this pull request Mar 4, 2016
PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit that referenced this pull request Mar 4, 2016
Dynamic checks that CallbackInfo holds an ArrayBuffer handle can be
converted into compiler enforced checks. Removed unused code, and
other minor cleanup.

PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
ofrobots added a commit that referenced this pull request Mar 4, 2016
Old style SetWeak is now deprecated, and weakness now works like
phantom references. This means we no longer have a reference to the
object in the weak callback. We use a kInternalFields style weak
callback which provides us with the contents of 2 internal fields
where we can squirrel away the native buffer pointer.

We can no longer neuter the buffer in the weak callback, but that
should be unnecessary as the object is going to be GC'd during the
current gc cycle.

PR-URL: #5204
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: indutny - Fedor Indutny <fedor.indutny@gmail.com>
addaleax added a commit to addaleax/node that referenced this pull request Jan 13, 2019
This call was introduced in 827ee49 to avoid a crash in a
later `Neuter()` call that has later been removed in ebbbc5a,
rendering the original call unnecessary.

Refs: nodejs#3624
Refs: nodejs#5204
addaleax added a commit that referenced this pull request Jan 21, 2019
This call was introduced in 827ee49 to avoid a crash in a
later `Neuter()` call that has later been removed in ebbbc5a,
rendering the original call unnecessary.

Refs: #3624
Refs: #5204

PR-URL: #25479
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
targos pushed a commit that referenced this pull request Jan 24, 2019
This call was introduced in 827ee49 to avoid a crash in a
later `Neuter()` call that has later been removed in ebbbc5a,
rendering the original call unnecessary.

Refs: #3624
Refs: #5204

PR-URL: #25479
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
BethGriggs pushed a commit that referenced this pull request Apr 29, 2019
This call was introduced in 827ee49 to avoid a crash in a
later `Neuter()` call that has later been removed in ebbbc5a,
rendering the original call unnecessary.

Refs: #3624
Refs: #5204

PR-URL: #25479
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
BethGriggs pushed a commit that referenced this pull request May 10, 2019
This call was introduced in 827ee49 to avoid a crash in a
later `Neuter()` call that has later been removed in ebbbc5a,
rendering the original call unnecessary.

Refs: #3624
Refs: #5204

PR-URL: #25479
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
MylesBorins pushed a commit that referenced this pull request May 16, 2019
This call was introduced in 827ee49 to avoid a crash in a
later `Neuter()` call that has later been removed in ebbbc5a,
rendering the original call unnecessary.

Refs: #3624
Refs: #5204

PR-URL: #25479
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
deepak1556 pushed a commit to electron/node that referenced this pull request Jul 10, 2019
This call was introduced in 827ee49 to avoid a crash in a
later `Neuter()` call that has later been removed in ebbbc5a,
rendering the original call unnecessary.

Refs: nodejs/node#3624
Refs: nodejs/node#5204

PR-URL: nodejs/node#25479
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
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