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ef4170ea03
Pick up V8 4.8 branch-head. This branch brings in @@isConcatSpreadable, @@toPrimitive and ToLength ES6 changes. For full details see: http://v8project.blogspot.de/2015/11/v8-release-48.html https://github.com/v8/v8/commit/fa163e2 Ref: https://github.com/nodejs/node/pull/4399 PR-URL: https://github.com/nodejs/node/pull/4785 Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
// Copyright 2015 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_TEST_FEEDBACK_VECTOR_H_
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#define V8_TEST_FEEDBACK_VECTOR_H_
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#include "src/objects.h"
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namespace v8 {
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namespace internal {
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// Helper class that allows to write tests in a slot size independent manner.
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// Use helper.slot(X) to get X'th slot identifier.
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class FeedbackVectorHelper {
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public:
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explicit FeedbackVectorHelper(Handle<TypeFeedbackVector> vector)
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: vector_(vector) {
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int slot_count = vector->slot_count();
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slots_.reserve(slot_count);
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TypeFeedbackMetadataIterator iter(vector->metadata());
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while (iter.HasNext()) {
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FeedbackVectorSlot slot = iter.Next();
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slots_.push_back(slot);
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}
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}
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Handle<TypeFeedbackVector> vector() { return vector_; }
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// Returns slot identifier by numerical index.
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FeedbackVectorSlot slot(int index) const { return slots_[index]; }
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// Returns the number of slots in the feedback vector.
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int slot_count() const { return static_cast<int>(slots_.size()); }
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private:
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Handle<TypeFeedbackVector> vector_;
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std::vector<FeedbackVectorSlot> slots_;
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};
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template <typename Spec>
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Handle<TypeFeedbackVector> NewTypeFeedbackVector(Isolate* isolate, Spec* spec) {
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Handle<TypeFeedbackMetadata> metadata =
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TypeFeedbackMetadata::New(isolate, spec);
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return TypeFeedbackVector::New(isolate, metadata);
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}
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} // namespace internal
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} // namespace v8
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#endif
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