// 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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#include "src/interpreter/bytecode-array-random-iterator.h"
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#include "src/objects-inl.h"
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#include "src/objects/code-inl.h"
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namespace v8 {
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namespace internal {
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namespace interpreter {
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BytecodeArrayRandomIterator::BytecodeArrayRandomIterator(
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Handle<BytecodeArray> bytecode_array, Zone* zone)
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: BytecodeArrayAccessor(bytecode_array, 0), offsets_(zone) {
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// Run forwards through the bytecode array to determine the offset of each
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// bytecode.
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while (current_offset() < bytecode_array->length()) {
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offsets_.push_back(current_offset());
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SetOffset(current_offset() + current_bytecode_size());
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}
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GoToStart();
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}
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bool BytecodeArrayRandomIterator::IsValid() const {
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return current_index_ >= 0 &&
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static_cast<size_t>(current_index_) < offsets_.size();
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}
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void BytecodeArrayRandomIterator::UpdateOffsetFromIndex() {
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if (IsValid()) {
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SetOffset(offsets_[current_index_]);
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}
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}
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} // namespace interpreter
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} // namespace internal
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} // namespace v8
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