PR-URL: https://github.com/nodejs/node/pull/21079
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yang Guo <yangguo@chromium.org>
Original commit message:
[promise] Implement Swallowed Rejection Hook.
This extends the current Promise Rejection Hook with two new events
kPromiseRejectAfterResolved
kPromiseResolveAfterResolved
which are used to detect (and signal) misuse of the Promise constructor.
Specifically the common bug like
new Promise((res, rej) => {
res(1);
throw new Error("something")
});
where the error is silently swallowed by the Promise constructor without
the user ever noticing can be caught via this hook.
Doc: https://goo.gl/2stLUY
Bug: v8:7919
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I890a7e766cdd1be88db94844fb744f72823dba33
Reviewed-on: https://chromium-review.googlesource.com/1126099
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54309}
Refs: 907d7bcd18
PR-URL: https://github.com/nodejs/node/pull/21838
Refs: https://github.com/nodejs/promises-debugging/issues/8
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Yang Guo <yangguo@chromium.org>
Reviewed-By: Benedikt Meurer <benedikt.meurer@gmail.com>
Original commit message:
[api] do not require source string for producing code cache.
The embedder should not need to keep track of the source string.
R=jgruber@chromium.org
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ie27df755a22fbcae7b6e87a435419d2d8f545558
Reviewed-on: https://chromium-review.googlesource.com/1013482
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52614}
PR-URL: https://github.com/nodejs/node/pull/21022
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Original commit message:
[api] Expose PreviewEntries as public API
Turn `debug::EntriesPreview` into a public API.
This is a straightforward approach to addressing
nodejs/node#20409
(not relying on functionality behind `--allow-natives-syntax`)
in Node.js.
Refs: ff0a979333
PR-URL: https://github.com/nodejs/node/pull/20719
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Original commit message:
[api] introduce v8::Value::IsModuleNamespaceObject
This allows an embedder to check if a Value is a module namespace object.
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Idffceff451dd5f5c6a53d4cb3ce02c1c2c5b653c
Reviewed-on: https://chromium-review.googlesource.com/1011762
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52597}
Refs: 39d546a240
PR-URL: https://github.com/nodejs/node/pull/20016
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Original commit message:
[api] Expose PreviewEntries as public API
Turn `debug::EntriesPreview` into a public API.
This is a straightforward approach to addressing
nodejs/node#20409
(not relying on functionality behind `--allow-natives-syntax`)
in Node.js.
Refs: ff0a979333
PR-URL: https://github.com/nodejs/node/pull/20719
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
PR-URL: https://github.com/nodejs/node/pull/19999
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Yang Guo <yangguo@chromium.org>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Original commit message:
[api] introduce v8::Value::IsModuleNamespaceObject
This allows an embedder to check if a Value is a module namespace object.
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Idffceff451dd5f5c6a53d4cb3ce02c1c2c5b653c
Reviewed-on: https://chromium-review.googlesource.com/1011762
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52597}
Refs: 39d546a240
PR-URL: https://github.com/nodejs/node/pull/20016
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Original commit message:
Use wider types for max_old_space_size and co.
Make --max_old_space_size and friends work with values >= 2**31.
Such values did not work reliably (or sometimes not all) due to
signed integer overflow in size computations, which is UB.
Fixes https://github.com/nodejs/node/issues/18786.
Bug: chromium:814138
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ibe23cef2417fd5b4a727022b8b0d4b50f1417182
Reviewed-on: https://chromium-review.googlesource.com/927063
Commit-Queue: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51433}
Refs: 46c4979e86
PR-URL: https://github.com/nodejs/node/pull/18453
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yang Guo <yangguo@chromium.org>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
PR-URL: https://github.com/nodejs/node/pull/18453
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Yang Guo <yangguo@chromium.org>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Original commit message:
Introduce ScriptOrModule and HostDefinedOptions
This patch introduces a new container type ScriptOrModule which
provides the name and the host defined options of the script/module.
This patch also introduces a new PrimitivesArray that can hold
Primitive values, which the embedder can use to store metadata.
The HostDefinedOptions is passed to V8 through the ScriptOrigin, and
passed back to the embedder through HostImportModuleDynamically for
module loading.
Bug: v8:5785, v8:6658, v8:6683
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I56c26fc9a680b273ac0a6691e5ad75f15b8dc80a
Reviewed-on: https://chromium-review.googlesource.com/622158
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47724}
PR-URL: https://github.com/nodejs/node/pull/16889
Refs: dbfe4a49d8
Refs: https://github.com/nodejs/node/pull/15713
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Original commit message:
[api] Add optional data pointer to GC callbacks
This can be useful when there may be multiple callbacks attached by
code that's not directly tied to a single isolate, e.g. working
on a per-context basis.
This also allows rephrasing the global non-isolate APIs in terms
of this new API, rather than working around it inside `src/heap`.
TBR=hpayer@chromium.org
Bug:
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I2e490ec40d1a34ea812f25f41ef9741d2116d965
Reviewed-on: https://chromium-review.googlesource.com/647548
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47923}
PR-URL: https://github.com/nodejs/node/pull/15391
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Original commit message:
[api] Add optional data pointer to GC callbacks
This can be useful when there may be multiple callbacks attached by
code that's not directly tied to a single isolate, e.g. working
on a per-context basis.
This also allows rephrasing the global non-isolate APIs in terms
of this new API, rather than working around it inside `src/heap`.
TBR=hpayer@chromium.org
Bug:
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I2e490ec40d1a34ea812f25f41ef9741d2116d965
Reviewed-on: https://chromium-review.googlesource.com/647548
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47923}
PR-URL: https://github.com/nodejs/node/pull/15391
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
VS2013 does not support defaulting move constructor and assignment
operator. This adds explicit definitions of those methods for two
classes.
This fix is required because we still support building addons with
VS2013 and the incompatibility is in v8.h.
Fixes: https://github.com/nodejs/node-v8/issues/4
PR-URL: https://github.com/nodejs/node/pull/13263
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
VS2013 does not support defaulting move constructor and assignment
operator. This adds explicit definitions of those methods for two
classes.
This fix is required because we still support building addons with
VS2013 and the incompatibility is in v8.h.
Fixes: https://github.com/nodejs/node-v8/issues/4
Refs: https://github.com/nodejs/node/pull/13263
PR-URL: https://github.com/nodejs/node/pull/14004
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Original commit message:
This commit adds a getter for the private is_verbose_ member.
The use case for this comes from Node.js where the ability to avoid
calling FatalException if the TryCatch is verbose would be nice
to have.
BUG=
Review-Url: https://codereview.chromium.org/2840803002
Cr-Commit-Position: refs/heads/master@{#45018}
PR-URL: https://github.com/nodejs/node/pull/12826
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
VS2013 does not support defaulting move constructor and assignment
operator. This adds explicit definitions of those methods for two
classes.
This fix is required because we still support building addons with
VS2013 and the incompatibility is in v8.h.
Fixes: https://github.com/nodejs/node-v8/issues/4
PR-URL: https://github.com/nodejs/node/pull/13263
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Original commit message:
Allow embedder to set promise internal field count
Asynchronous context tracking mechanisms in Node.js need to store some
state on all promise objects. This change will allow embedders to
configure the number of internal fields on promises as is already done
for ArrayBuffers.
BUG=v8:6435
Review-Url: https://codereview.chromium.org/2889863002
Cr-Commit-Position: refs/heads/master@{#45496}
PR-URL: https://github.com/nodejs/node/pull/13175
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Original commit message:
This commit adds a getter for the private is_verbose_ member.
The use case for this comes from Node.js where the ability to avoid
calling FatalException if the TryCatch is verbose would be nice
to have.
BUG=
Review-Url: https://codereview.chromium.org/2840803002
Cr-Commit-Position: refs/heads/master@{#45018}
PR-URL: https://github.com/nodejs/node/pull/12826
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Refs: https://github.com/nodejs/node/pull/11048
Below is the list of commits:
deps: cherry-pick 78c0be52d from V8 upstream
Original commit message:
ValueSerializer: Promote scheduled exceptions from wasm::ErrorThrower.
wasm::ErrorThrower doesn't actually throw exceptions, it just schedules them.
As a result, this exception isn't handled properly by code which expects
ValueDeserializer to actually throw. For instance, the unit tests use a
TryCatch to catch and handle expected exceptions in unit tests.
Before this patch, I see local unit test failures because a wasm decode test
schedules one, but it isn't caught (and instead causes Context::New to fail
at the beginning of the next test).
BUG=685713
Review-Url: https://codereview.chromium.org/2659483004
Cr-Commit-Position: refs/heads/master@{#42718}
deps: cherry-pick 966355585 from V8 upstream
Original commit message:
[d8] Use ValueSerializer for postMessage (instead of ad-hoc serializer)
Review-Url: https://codereview.chromium.org/2643723010
Cr-Commit-Position: refs/heads/master@{#42749}
deps: cherry-pick bf511b426 from V8 upstream
Original commit message:
ValueSerializer: Support efficiently reading and writing one-byte strings.
memcpy is faster than UTF-8 encoding/decoding. This yields 10-20% wins on
serializing and deserializing long ASCII strings, according to
blink_perf.bindings -- and these are already in a fast path where the entire
string is known to be ASCII (but this has to be checked). The win may be
larger for strings in Latin-1 but not ASCII (though I suspect this is an
uncommon case).
A change is also made to make ValueSerializerTest.EncodeTwoByteStringUsesPadding
survive wire format version number changes.
This is the first of a series of wire format changes from the previous Blink
format. The deserializer continues to be able to read the old format, but
Chromium M56 will no longer be able to read the messages written by this, in M58.
BUG=chromium:686159
Review-Url: https://codereview.chromium.org/2658793004
Cr-Commit-Position: refs/heads/master@{#42753}
deps: cherry-pick 6f1639ed1 from V8 upstream
Original commit message:
ValueSerializer: Distinguish between 'undefined' and an absent property.
Dealing with this case requires a wire format change. It is possible that an
element can be absent even in an array where the dense format was chosen
(because the array initially had no holes), if the elements are modified while
they are being serialized. In this case, a new tag for the "hole" is emitted.
The logic to treat undefined in dense arrays as an absent property is restricted
to versions of the wire format that this tag did not exist.
BUG=chromium:686159,chromium:665820
Review-Url: https://codereview.chromium.org/2660093002
Cr-Original-Commit-Position: refs/heads/master@{#42784}
Committed: dc85f4c833
Review-Url: https://codereview.chromium.org/2660093002
Cr-Commit-Position: refs/heads/master@{#42800}
deps: cherry-pick c3856de37 from V8 upstream
Original commit message:
ValueSerializer: Check for zero length before casting to FixedDoubleArray.
Even though the elements kind is FAST_DOUBLE_ELEMENTS, if length is zero
the isolate's empty_fixed_array is used. It's illegal to cast this to
FixedDoubleArray, so we avoid the cast.
BUG=chromium:686479
Review-Url: https://codereview.chromium.org/2665313003
Cr-Commit-Position: refs/heads/master@{#42867}
deps: cherry-pick 591cc0b4c from V8 upstream
Original commit message:
ValueSerializer: Share string encoding code with String and RegExp objects.
This avoids the need to pull in the UTF-8 encoding code from the public API,
and allows it to take advantage of any supported way that i::String can be
encoded (one- or two-byte).
Backward compatibility is maintained, but this is the behavior beginning
with this version.
BUG=chromium:686159
Review-Url: https://codereview.chromium.org/2665653004
Cr-Commit-Position: refs/heads/master@{#42872}
deps: cherry-pick 79837f5f6 from V8 upstream
Original commit message:
Improve ValueSerializer perf regression after 96635558
BUG=687196
R=jbroman@chromium.org
Review-Url: https://codereview.chromium.org/2674613002
Cr-Commit-Position: refs/heads/master@{#42938}
deps: cherry-pick 8990399dc from V8 upstream
Original commit message:
ValueDeserializer: Only allow valid keys when deserializing object properties.
The serializer won't ever write a more complex object. Not validating this
allows other things to be used as keys, and converted to string when the
property set actually occurs. It turns out this gives an opportunity to trigger
OOM by giving an object a key which is a very large sparse array (whose string
representation is very large).
This case is now rejected by the deserializer.
BUG=chromium:686511
Review-Url: https://codereview.chromium.org/2697023002
Cr-Commit-Position: refs/heads/master@{#43249}
deps: cherry-pick 68960eeb7 from V8 upstream
Original commit message:
ValueDeserializer: Make sure that an exception is the legacy path.
The entry points to the deserializer are responsible for ensuring that an
exception is pending by the time they return. Some failures throw exceptions
themselves, while others (like errors in the format) are exceptions caused by
the deserializer, not coming from the runtime.
Like the non-legacy path, a default deserialization exception should be thrown
in such cases.
BUG=chromium:693411
Review-Url: https://codereview.chromium.org/2712713002
Cr-Commit-Position: refs/heads/master@{#43390}
deps: cherry-pick 3b15d950e from V8 upstream
Original commit message:
ValueSerializer: Add SetTreatArrayBufferViewsAsHostObjects() flag
Add `ValueSerializer::SetTreatArrayBufferViewsAsHostObjects()` which
instructs the `ValueSerializer` to treat ArrayBufferView objects as
host objects.
BUG=v8:5926
Review-Url: https://codereview.chromium.org/2696133007
Cr-Commit-Position: refs/heads/master@{#43281}
deps: cherry-pick 654351997 from V8 upstream
Original commit message:
ValueSerializer: Add an explicit tag for host objects.
This makes it no longer necessary to ensure that V8 and Blink have non-colliding
tags, which makes it easier for them to evolve independently, and also makes
the wire format more suitable for other V8 embedders, who would not
necessarily be surveyed before V8 introduced a new tag that might collide
with theirs.
BUG=chromium:686159
Review-Url: https://codereview.chromium.org/2709023003
Cr-Commit-Position: refs/heads/master@{#43466}
PR-URL: https://github.com/nodejs/node/pull/11752
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Pick up the latest branch-head for V8 5.1. Introduces a semver-minor
overload of v8::Function::New() for use by v8_inspector.
Refs: https://github.com/nodejs/node/pull/7586
PR-URL: https://github.com/nodejs/node/pull/7615
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Remove the `_malloced_memory` field from the `HeapStatistics`
class to achieve full ABI compatibility with V8 5.0.
Ref: https://github.com/nodejs/node/pull/7016
PR-URL: https://github.com/nodejs/node/pull/7526
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Backport 1ee712ab8687e5f4dec93d45da068d37d28feb8b from V8 upstream.
Original commit message:
Add SetAbortOnUncaughtExceptionCallback API
The --abort-on-uncaught-exception command line switch makes
Isolate::Throw abort if the error being thrown cannot be caught by a
try/catch block.
Embedders may want to use other mechanisms than try/catch blocks to
handle uncaught exceptions. For instance, Node.js has "domain" objects
that have error handlers that can handle uncaught exception like
following:
var d = domain.create();
d.on('error', function onError(err) {
console.log('Handling error');
});
d.run(function() {
throw new Error("boom");
});
These error handlers are called by isolates' message listeners.
If --abort-on-uncaught-exception is *not* used, the isolate's
message listener will be called, which will in turn call the domain's
error handler. The process will output 'Handling error' and will exit
successfully (not due to an uncaught exception). This is the behavior
that Node.js users expect.
However, if --abort-on-uncaught-exception is used and when throwing an
error within a domain that has an error handler, the process will abort
and the domain's error handler will not be called. This is not the
behavior that Node.js users expect.
Having a SetAbortOnUncaughtExceptionCallback API allows embedders to
determine when it's not appropriate to abort and instead handle the
exception via the isolate's message listener.
In the example above, Node.js would set a custom callback with
SetAbortOnUncaughtExceptionCallback that would be implemented as
following (the sample code has been simplified to remove what's not
relevant to this change):
bool ShouldAbortOnUncaughtException(Isolate* isolate) {
return !IsDomainActive();
}
Now when --abort-on-uncaught-exception is used, Isolate::Throw would
call that callback and determine that it should not abort if a domain
with an error handler is active. Instead, the isolate's message listener
would be called and the error would be handled by the domain's error
handler.
I believe this can also be useful for other embedders.
BUG=
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1375933003
Cr-Commit-Position: refs/heads/master@{#31111}
Ref: #3036
Ref: https://github.com/nodejs/node/pull/3481
PR-URL: https://github.com/nodejs/node/pull/4106
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: targos - Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: rvagg - Rod Vagg <rod@vagg.org>
Backport 1ee712ab8687e5f4dec93d45da068d37d28feb8b from V8 upstream.
Original commit message:
Add SetAbortOnUncaughtExceptionCallback API
The --abort-on-uncaught-exception command line switch makes
Isolate::Throw abort if the error being thrown cannot be caught by a
try/catch block.
Embedders may want to use other mechanisms than try/catch blocks to
handle uncaught exceptions. For instance, Node.js has "domain" objects
that have error handlers that can handle uncaught exception like
following:
var d = domain.create();
d.on('error', function onError(err) {
console.log('Handling error');
});
d.run(function() {
throw new Error("boom");
});
These error handlers are called by isolates' message listeners.
If --abort-on-uncaught-exception is *not* used, the isolate's
message listener will be called, which will in turn call the domain's
error handler. The process will output 'Handling error' and will exit
successfully (not due to an uncaught exception). This is the behavior
that Node.js users expect.
However, if --abort-on-uncaught-exception is used and when throwing an
error within a domain that has an error handler, the process will abort
and the domain's error handler will not be called. This is not the
behavior that Node.js users expect.
Having a SetAbortOnUncaughtExceptionCallback API allows embedders to
determine when it's not appropriate to abort and instead handle the
exception via the isolate's message listener.
In the example above, Node.js would set a custom callback with
SetAbortOnUncaughtExceptionCallback that would be implemented as
following (the sample code has been simplified to remove what's not
relevant to this change):
bool ShouldAbortOnUncaughtException(Isolate* isolate) {
return !IsDomainActive();
}
Now when --abort-on-uncaught-exception is used, Isolate::Throw would
call that callback and determine that it should not abort if a domain
with an error handler is active. Instead, the isolate's message listener
would be called and the error would be handled by the domain's error
handler.
I believe this can also be useful for other embedders.
BUG=
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1375933003
Cr-Commit-Position: refs/heads/master@{#31111}
PR: #3036
PR-URL: https://github.com/nodejs/node/pull/3036
Reviewed-By: Ben Noordhuis <ben@strongloop.com>
Upgrade the bundled V8 and update code in src/ and lib/ to the new API.
Notable backwards incompatible changes are the removal of the smalloc
module and dropped support for CESU-8 decoding. CESU-8 support can be
brought back if necessary by doing UTF-8 decoding ourselves.
This commit includes https://codereview.chromium.org/1192973004 to fix
a build error on python 2.6 systems. The original commit log follows:
Use optparse in js2c.py for python compatibility
Without this change, V8 won't build on RHEL/CentOS 6 because the
distro python is too old to know about the argparse module.
PR-URL: https://github.com/nodejs/io.js/pull/2022
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
* @indutny's SealHandleScope patch (484bebc38319fc7c622478037922ad73b2edcbf9)
has been cherry picked onto the top of V8 to make it compile.
* There's some test breakage in contextify.
* This was merged at the request of the TC.
PR-URL: https://github.com/iojs/io.js/pull/1632
This commit applies a secondary change in order to make `make test`
pass cleanly, specifically re-disabling post-mortem debugging in
common.gypi.
PR-URL: https://github.com/iojs/io.js/pull/1506
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This commit applies some secondary changes in order to make `make test`
pass cleanly:
* disable broken postmortem debugging in common.gypi
* drop obsolete strict mode test in parallel/test-repl
* drop obsolete test parallel/test-v8-features
PR-URL: https://github.com/iojs/io.js/pull/1232
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Original commit message:
api: introduce SealHandleScope
When debugging Handle leaks in io.js we found it very convenient to be
able to Seal some specific (root in our case) scope to prevent Handle
allocations in it, and easily find leakage.
R=yangguo
BUG=
Review URL: https://codereview.chromium.org/1079713002
Cr-Commit-Position: refs/heads/master@{#27766}
Should help us identify and fix Handle leaks in core and user-space code.
NOTE: Works only in Debug build now, but is still better than nothing.
PR-URL: https://github.com/iojs/io.js/pull/1395
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Undo the ABI (but not API) change to NamedPropertyHandlerConfiguration.
This avoids a NODE_MODULE_VERSION bump and forcing everyone to recompile
their add-ons, at the cost of increasing the delta with upstream V8.
This commit effectively backs out 4.1.0.16, the release that introduced
the ABI change (and nothing else.)
PR-URL: https://github.com/iojs/io.js/pull/952
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Reviewed-By: Rod Vagg <rod@vagg.org>
V8 3.26.31 has received 14 patches since the upgrade to 3.26.33. Since
3.26.33 is technically a tag on the 3.27 branch, reverting back to
3.26.31 would remove now default functionality like WeakMaps. Because of
that the patches have simply been cherry-picked and squashed.
Here is a summary of all patches:
* Fix index register assignment in LoadFieldByIndex for arm, arm64, and
mips.
* Fix invalid attributes when generalizing because of incompatible map
change.
* Skip write barriers when updating the weak hash table.
* MIPS: Avoid HeapObject check in HStoreNamedField.
* Do GC if CodeRange fails to allocate a block.
* Array.concat: properly go to dictionary mode when required.
* Keep CodeRange::current_allocation_block_index_ in range.
* Grow heap slower if GC freed many global handles.
* Do not eliminate bounds checks for "<const> - x".
* Add missing map check to optimized f.apply(...).
* In GrowMode, force the value to the right representation to avoid
deopts between storing the length and storing the value.
* Reduce max executable size limit.
* Fix invalid condition in check elimination effects.
* Fix off-by-one error in Array.concat slow mode check.
For more information see: https://github.com/v8/v8/commits/3.26
Reviewed-By: Fedor Indutny <fedor@indutny.com>
This commit removes the simple/test-event-emitter-memory-leak test for
being unreliable with the new garbage collector: the memory pressure
exerted by the test case is too low for the garbage collector to kick
in. It can be made to work again by limiting the heap size with the
--max_old_space_size=x flag but that won't be very reliable across
platforms and architectures.
There are serious performance regressions both in V8 and our own legacy
networking stack. Until we correct our own problems we are going back to the
old V8.
