src/third_party/v8/src/utils/bit-vector.cc

// Copyright 2010 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/utils/bit-vector.h"

#include "src/base/bits.h"
#include "src/utils/utils.h"

namespace v8 {
namespace internal {

#ifdef DEBUG
void BitVector::Print() const {
  bool first = true;
  PrintF("{");
  for (int i = 0; i < length(); i++) {
    if (Contains(i)) {
      if (!first) PrintF(",");
      first = false;
      PrintF("%d", i);
    }
  }
  PrintF("}\n");
}
#endif

int BitVector::Count() const {
  if (is_inline()) return base::bits::CountPopulation(data_.inline_);

  int count = 0;
  for (int i = 0; i < data_length_; i++) {
    count += base::bits::CountPopulation(data_.ptr_[i]);
  }
  return count;
}

}  // namespace internal
}  // namespace v8