01452bedfc
BUG=v8:5402,v8:8015 Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng Change-Id: I14613a05f9b71308858afdd8d2b212ae9786abb3 Reviewed-on: https://chromium-review.googlesource.com/1215169 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#55822}
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_ALLOCATION_SITE_SCOPES_INL_H_
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#define V8_ALLOCATION_SITE_SCOPES_INL_H_
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#include "src/allocation-site-scopes.h"
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#include "src/objects/allocation-site-inl.h"
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namespace v8 {
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namespace internal {
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Handle<AllocationSite> AllocationSiteUsageContext::EnterNewScope() {
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if (top().is_null()) {
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InitializeTraversal(top_site_);
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} else {
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// Advance current site
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Object* nested_site = current()->nested_site();
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// Something is wrong if we advance to the end of the list here.
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update_current_site(AllocationSite::cast(nested_site));
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}
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return Handle<AllocationSite>(*current(), isolate());
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}
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void AllocationSiteUsageContext::ExitScope(Handle<AllocationSite> scope_site,
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Handle<JSObject> object) {
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// This assert ensures that we are pointing at the right sub-object in a
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// recursive walk of a nested literal.
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DCHECK(object.is_null() || *object == scope_site->boilerplate());
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}
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bool AllocationSiteUsageContext::ShouldCreateMemento(Handle<JSObject> object) {
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if (activated_ && AllocationSite::CanTrack(object->map()->instance_type())) {
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if (FLAG_allocation_site_pretenuring ||
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AllocationSite::ShouldTrack(object->GetElementsKind())) {
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if (FLAG_trace_creation_allocation_sites) {
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PrintF("*** Creating Memento for %s %p\n",
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object->IsJSArray() ? "JSArray" : "JSObject",
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static_cast<void*>(*object));
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}
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return true;
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}
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}
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return false;
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}
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} // namespace internal
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} // namespace v8
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#endif // V8_ALLOCATION_SITE_SCOPES_INL_H_
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