[v10.x backport] deps: v8, backport coverage fixes #26579
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Pulls in patches from V8 (52e2b5, 512175, aac2f8, 9365d09, 2d08967)
which address a variety of coverage bugs, bringing Node v10 coverage
to parity with Node v11.
Original commit message:
[coverage] Extend SourceRangeAstVisitor for throw statements
The SourceRangeAstVisitor has custom logic for blocks ending with a
statement that has a continuation range. In these cases, the trailing
continuation is removed which makes the reported coverage ranges a bit
nicer.
throw Error('foo') consists of an ExpressionStatement, with a
Throw expression stored within the statement. The source range itself
is stored with the Throw, not the statement.
We now properly extract the correct AST node for trailing throw
statements.
[email protected], [email protected], [email protected]
Bug: v8:8691
Change-Id: Ibcbab79fbe54719a8993045040349c863b139011
Reviewed-on: https://chromium-review.googlesource.com/c/1480632
Commit-Queue: Georg Neis <[email protected]>
Reviewed-by: Georg Neis <[email protected]>
Reviewed-by: Jakob Gruber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#59936}
Refs: v8/v8@2d08967
Original commit message:
[coverage] Rework continuation counter handling
This changes a few bits about how continuation counters are handled.
It introduces a new mechanism that allows removal of a continuation
range after it has been created. If coverage is enabled, we run a first
post-processing pass on the AST immediately after parsing, which
removes problematic continuation ranges in two situations:
1. nested continuation counters - only the outermost stays alive.
2. trailing continuation counters within a block-like structure are
removed if the containing structure itself has a continuation.
[email protected], [email protected], [email protected]
Bug: v8:8381, v8:8539
Change-Id: I6bcaea5060d8c481d7bae099f6db9f993cc30ee3
Reviewed-on: https://chromium-review.googlesource.com/c/1339119
Reviewed-by: Yang Guo <[email protected]>
Reviewed-by: Leszek Swirski <[email protected]>
Reviewed-by: Georg Neis <[email protected]>
Commit-Queue: Jakob Gruber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#58443}
Refs: v8/v8@9365d09
Original commit message:
[coverage] Filter out singleton ranges that alias full ranges
Block coverage is based on a system of ranges that can either have
both a start and end position, or only a start position (so-called
singleton ranges). When formatting coverage information, singletons
are expanded until the end of the immediate full parent range. E.g.
in:
{0, 10} // Full range.
{5, -1} // Singleton range.
the singleton range is expanded to {5, 10}.
Singletons are produced mostly for continuation counters that track
whether we execute past a specific language construct.
Unfortunately, continuation counters can turn up in spots that confuse
our post-processing. For example:
if (true) { ... block1 ... } else { ... block2 ... }
If block1 produces a continuation counter, it could end up with the
same start position as the else-branch counter. Since we merge
identical blocks, the else-branch could incorrectly end up with an
execution count of one.
We need to avoid merging such cases. A full range should always take
precedence over a singleton range; a singleton range should never
expand to completely fill a full range. An additional post-processing
pass ensures this.
Bug: v8:8237
Change-Id: Idb3ec7b2feddc0585313810b9c8be1e9f4ec64bf
Reviewed-on: https://chromium-review.googlesource.com/c/1273095
Reviewed-by: Georg Neis <[email protected]>
Reviewed-by: Yang Guo <[email protected]>
Commit-Queue: Jakob Gruber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#56531}
Refs: v8/v8@aac2f8c
Original commit message:
[ast] Introduce ZonePtrList<T> typedef for ZoneList<T*>.
This is a preliminary step before changing the way we store zone pointers
in the zones.
Bug: v8:7903, v8:7754
Change-Id: I1e1af1823766c888ee0f8fe190f205f5b7e21973
Reviewed-on: https://chromium-review.googlesource.com/1118887
Reviewed-by: Ross McIlroy <[email protected]>
Reviewed-by: Marja Hölttä <[email protected]>
Reviewed-by: Camillo Bruni <[email protected]>
Commit-Queue: Igor Sheludko <[email protected]>
Cr-Commit-Position: refs/heads/master@{nodejs#54193}
Refs: v8/v8@512175a
Original commit message:
[explicit isolates] Replace every Handle(T*) in parsing/
Replace all but one Handle<T*>(T*) calls with ones that explicitly pass
in an Isolate.
Requires plumbing Isolate* through several Parser functions which
previously avoided it because of worries about accessing the heap off
the main thread. In all off-main-thread cases, isolate will be nullptr
and every such function asserts with:
DCHECK_EQ(parsing_on_main_thread_, isolate != nullptr);
Also deletes unused function ParseInfo::ReopenHandlesInNewHandleScope.
Bug: v8:7786
Change-Id: I3dd9c49dcde49fdbcb684ba73f47a30d00fc495e
Reviewed-on: https://chromium-review.googlesource.com/1087272
Commit-Queue: Dan Elphick <[email protected]>
Reviewed-by: Toon Verwaest <[email protected]>
Cr-Commit-Position: refs/heads/master@{nodejs#53820}
Refs: v8/v8@52e2b5a
|
@nodejs/v8 @nodejs/testing 👋 would love some eyes on this, it potentially gets test coverage working in Node 10. |
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Trott
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Mar 12, 2019
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@BridgeAR can you take a look at this (are you part of the release team?) |
|
@bcoe I am (but not LTS). Backports are normally merged right before a release. We might want to change that for patch commits though. I'll bring it up in the release group's meeting. |
|
Should each backported commit be in its own commit? |
ryzokuken
approved these changes
Mar 14, 2019
|
@richardlau it takes some manual work to get the patches to land cleanly, and all of the commits step on each other's toes. When landing in master we brought the patches in as a set, and I think it was the right approach. |
codebytere
approved these changes
Mar 14, 2019
4 tasks
guybedford
approved these changes
Apr 7, 2019
BethGriggs
approved these changes
Apr 8, 2019
|
Landed on v10.x-staging |
BethGriggs
pushed a commit
that referenced
this pull request
Apr 8, 2019
Pulls in patches from V8 (52e2b5, 512175, aac2f8, 9365d09, 2d08967)
which address a variety of coverage bugs, bringing Node v10 coverage
to parity with Node v11.
Original commit message:
[coverage] Extend SourceRangeAstVisitor for throw statements
The SourceRangeAstVisitor has custom logic for blocks ending with a
statement that has a continuation range. In these cases, the trailing
continuation is removed which makes the reported coverage ranges a bit
nicer.
throw Error('foo') consists of an ExpressionStatement, with a
Throw expression stored within the statement. The source range itself
is stored with the Throw, not the statement.
We now properly extract the correct AST node for trailing throw
statements.
[email protected], [email protected], [email protected]
Bug: v8:8691
Change-Id: Ibcbab79fbe54719a8993045040349c863b139011
Reviewed-on: https://chromium-review.googlesource.com/c/1480632
Commit-Queue: Georg Neis <[email protected]>
Reviewed-by: Georg Neis <[email protected]>
Reviewed-by: Jakob Gruber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#59936}
Refs: v8/v8@2d08967
Original commit message:
[coverage] Rework continuation counter handling
This changes a few bits about how continuation counters are handled.
It introduces a new mechanism that allows removal of a continuation
range after it has been created. If coverage is enabled, we run a first
post-processing pass on the AST immediately after parsing, which
removes problematic continuation ranges in two situations:
1. nested continuation counters - only the outermost stays alive.
2. trailing continuation counters within a block-like structure are
removed if the containing structure itself has a continuation.
[email protected], [email protected], [email protected]
Bug: v8:8381, v8:8539
Change-Id: I6bcaea5060d8c481d7bae099f6db9f993cc30ee3
Reviewed-on: https://chromium-review.googlesource.com/c/1339119
Reviewed-by: Yang Guo <[email protected]>
Reviewed-by: Leszek Swirski <[email protected]>
Reviewed-by: Georg Neis <[email protected]>
Commit-Queue: Jakob Gruber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#58443}
Refs: v8/v8@9365d09
Original commit message:
[coverage] Filter out singleton ranges that alias full ranges
Block coverage is based on a system of ranges that can either have
both a start and end position, or only a start position (so-called
singleton ranges). When formatting coverage information, singletons
are expanded until the end of the immediate full parent range. E.g.
in:
{0, 10} // Full range.
{5, -1} // Singleton range.
the singleton range is expanded to {5, 10}.
Singletons are produced mostly for continuation counters that track
whether we execute past a specific language construct.
Unfortunately, continuation counters can turn up in spots that confuse
our post-processing. For example:
if (true) { ... block1 ... } else { ... block2 ... }
If block1 produces a continuation counter, it could end up with the
same start position as the else-branch counter. Since we merge
identical blocks, the else-branch could incorrectly end up with an
execution count of one.
We need to avoid merging such cases. A full range should always take
precedence over a singleton range; a singleton range should never
expand to completely fill a full range. An additional post-processing
pass ensures this.
Bug: v8:8237
Change-Id: Idb3ec7b2feddc0585313810b9c8be1e9f4ec64bf
Reviewed-on: https://chromium-review.googlesource.com/c/1273095
Reviewed-by: Georg Neis <[email protected]>
Reviewed-by: Yang Guo <[email protected]>
Commit-Queue: Jakob Gruber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#56531}
Refs: v8/v8@aac2f8c
Original commit message:
[ast] Introduce ZonePtrList<T> typedef for ZoneList<T*>.
This is a preliminary step before changing the way we store zone pointers
in the zones.
Bug: v8:7903, v8:7754
Change-Id: I1e1af1823766c888ee0f8fe190f205f5b7e21973
Reviewed-on: https://chromium-review.googlesource.com/1118887
Reviewed-by: Ross McIlroy <[email protected]>
Reviewed-by: Marja Hölttä <[email protected]>
Reviewed-by: Camillo Bruni <[email protected]>
Commit-Queue: Igor Sheludko <[email protected]>
Cr-Commit-Position: refs/heads/master@{#54193}
Refs: v8/v8@512175a
Original commit message:
[explicit isolates] Replace every Handle(T*) in parsing/
Replace all but one Handle<T*>(T*) calls with ones that explicitly pass
in an Isolate.
Requires plumbing Isolate* through several Parser functions which
previously avoided it because of worries about accessing the heap off
the main thread. In all off-main-thread cases, isolate will be nullptr
and every such function asserts with:
DCHECK_EQ(parsing_on_main_thread_, isolate != nullptr);
Also deletes unused function ParseInfo::ReopenHandlesInNewHandleScope.
Bug: v8:7786
Change-Id: I3dd9c49dcde49fdbcb684ba73f47a30d00fc495e
Reviewed-on: https://chromium-review.googlesource.com/1087272
Commit-Queue: Dan Elphick <[email protected]>
Reviewed-by: Toon Verwaest <[email protected]>
Cr-Commit-Position: refs/heads/master@{#53820}
Refs: v8/v8@52e2b5a
PR-URL: #26579
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Ujjwal Sharma <[email protected]>
Reviewed-By: Shelley Vohr <[email protected]>
Reviewed-By: Guy Bedford <[email protected]>
Reviewed-By: Beth Griggs <[email protected]>
|
@BethGriggs 🎉 thank you for lading this. |
Merged
This was referenced May 29, 2019
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Pulls in patches from V8 (v8/v8@52e2b5, v8/v8@512175, v8/v8@aac2f8, v8/v8@9365d09, v8/v8@2d08967)
which address a variety of coverage bugs
This brings coverage in Node v10 to parity with coverage in v11, making coverage more universally consistent for users.
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passes