C++ (Cpp) NodeRef::subtree Examples

Example #1

File: IntervalMap.cpp Project: 0x00evil/llvm

void Path::moveLeft(unsigned Level) {
  assert(Level != 0 && "Cannot move the root node");

  // Go up the tree until we can go left.
  unsigned l = 0;
  if (valid()) {
    l = Level - 1;
    while (path[l].offset == 0) {
      assert(l != 0 && "Cannot move beyond begin()");
      --l;
    }
  } else if (height() < Level)
    // end() may have created a height=0 path.
    path.resize(Level + 1, Entry(nullptr, 0, 0));

  // NR is the subtree containing our left sibling.
  --path[l].offset;
  NodeRef NR = subtree(l);

  // Get the rightmost node in the subtree.
  for (++l; l != Level; ++l) {
    path[l] = Entry(NR, NR.size() - 1);
    NR = NR.subtree(NR.size() - 1);
  }
  path[l] = Entry(NR, NR.size() - 1);
}

Example #2

File: IntervalMap.cpp Project: 0x00evil/llvm

void Path::moveRight(unsigned Level) {
  assert(Level != 0 && "Cannot move the root node");

  // Go up the tree until we can go right.
  unsigned l = Level - 1;
  while (l && atLastEntry(l))
    --l;

  // NR is the subtree containing our right sibling. If we hit end(), we have
  // offset(0) == node(0).size().
  if (++path[l].offset == path[l].size)
    return;
  NodeRef NR = subtree(l);

  for (++l; l != Level; ++l) {
    path[l] = Entry(NR, 0);
    NR = NR.subtree(0);
  }
  path[l] = Entry(NR, 0);
}

Example #3

File: IntervalMap.cpp Project: 0x00evil/llvm

NodeRef Path::getRightSibling(unsigned Level) const {
  // The root has no siblings.
  if (Level == 0)
    return NodeRef();

  // Go up the tree until we can go right.
  unsigned l = Level - 1;
  while (l && atLastEntry(l))
    --l;

  // We can't go right.
  if (atLastEntry(l))
    return NodeRef();

  // NR is the subtree containing our right sibling.
  NodeRef NR = path[l].subtree(path[l].offset + 1);

  // Keep left all the way down.
  for (++l; l != Level; ++l)
    NR = NR.subtree(0);
  return NR;
}

Example #4

File: IntervalMap.cpp Project: 0x00evil/llvm

NodeRef Path::getLeftSibling(unsigned Level) const {
  // The root has no siblings.
  if (Level == 0)
    return NodeRef();

  // Go up the tree until we can go left.
  unsigned l = Level - 1;
  while (l && path[l].offset == 0)
    --l;

  // We can't go left.
  if (path[l].offset == 0)
    return NodeRef();

  // NR is the subtree containing our left sibling.
  NodeRef NR = path[l].subtree(path[l].offset - 1);

  // Keep right all the way down.
  for (++l; l != Level; ++l)
    NR = NR.subtree(NR.size() - 1);
  return NR;
}