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Anna Henningsen 83bf2975ec deps: cherry-pick V8 ValueSerializer changes 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>		8 years ago
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libplatform	deps: update V8 to 5.7.492.69	8 years ago
DEPS	deps: update V8 to 5.5.372.40	8 years ago
OWNERS	deps: update V8 to 5.5.372.40	8 years ago
v8-debug.h	deps: update V8 to 5.7.492.69	8 years ago
v8-experimental.h	deps: update V8 to 5.4.500.27	8 years ago
v8-inspector-protocol.h	deps: update V8 to 5.5.372.40	8 years ago
v8-inspector.h	deps: update V8 to 5.7.492.69	8 years ago
v8-platform.h	deps: update V8 to 5.5.372.40	8 years ago
v8-profiler.h	deps: update V8 to 5.6.326.55	8 years ago
v8-testing.h	deps: upgrade to V8 4.9.385.18	9 years ago
v8-util.h	deps: update V8 to 5.6.326.55	8 years ago
v8-version-string.h	deps: update V8 to 5.7.492.69	8 years ago
v8-version.h	deps: update V8 to 5.7.492.69	8 years ago
v8.h	deps: cherry-pick V8 ValueSerializer changes	8 years ago
v8config.h	deps: update V8 to 5.4.500.27	8 years ago