#include "absl/flags/flag.h"

#include "cpp/htmlparser/document.h"

ABSL_FLAG(std::size_t, htmlparser_nodes_allocator_block_size,

          256 << 10 /* 256k */,

          "Allocator block size for html nodes.");

namespace htmlparser {

Document::Document() :

    node_allocator_(new Allocator<Node>(

        ::absl::GetFlag(FLAGS_htmlparser_nodes_allocator_block_size))),

    root_node_(NewNode(NodeType::DOCUMENT_NODE)) {}

Node* Document::NewNode(NodeType node_type, Atom atom) {

  return node_allocator_->Construct(node_type, atom);

}

Node* Document::CloneNode(const Node* from) {

  Node* clone = NewNode(from->Type());

  clone->atom_ = from->atom_;

  clone->data_ = from->data_;

  clone->attributes_.reserve(from->Attributes().size());

  std::copy(from->Attributes().begin(), from->Attributes().end(),

            std::back_inserter(clone->attributes_));

  return clone;

}

}  // namespace htmlparser