storage/mozStorageStatementJSHelper.h
author James Graham <james@hoppipolla.co.uk>
Thu, 12 Jan 2017 17:58:52 +0000
changeset 462995 f51ff202bd6c35119220687f5227f942d269d613
parent 265526 dd79977a3286d947aff8e270245d05c05e676964
child 489668 cbb8fdf1daf98a15f7d57f6b08d273bdf96aa1a0
child 648192 c236dfe7dc98c387219d7cb45d0693560db708fd
child 650885 89df4227af85ff946e1611e73136c3525fdde353
permissions -rw-r--r--
Bug 1331899 - Ensure that asserts in referer-policy tests occur in a test(), r=Ms2ger MozReview-Commit-ID: 1LkrePKavGP

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef MOZSTORAGESTATEMENTJSHELPER_H
#define MOZSTORAGESTATEMENTJSHELPER_H

#include "nsIXPCScriptable.h"
#include "nsIXPConnect.h"

class Statement;

namespace mozilla {
namespace storage {

class StatementJSHelper : public nsIXPCScriptable
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIXPCSCRIPTABLE

private:
  nsresult getRow(Statement *, JSContext *, JSObject *, JS::Value *);
  nsresult getParams(Statement *, JSContext *, JSObject *, JS::Value *);
};

/**
 * Wrappers used to clean up the references JS helpers hold to the statement.
 * For cycle-avoidance reasons they do not hold reference-counted references,
 * so it is important we do this.
 */
class StatementJSObjectHolder : public nsIXPConnectJSObjectHolder
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIXPCONNECTJSOBJECTHOLDER

  explicit StatementJSObjectHolder(nsIXPConnectJSObjectHolder* aHolder);

protected:
  virtual ~StatementJSObjectHolder() {};
  nsCOMPtr<nsIXPConnectJSObjectHolder> mHolder;
};

class StatementParamsHolder final: public StatementJSObjectHolder {
public:
  explicit StatementParamsHolder(nsIXPConnectJSObjectHolder* aHolder)
    : StatementJSObjectHolder(aHolder) {
  }

private:
  virtual ~StatementParamsHolder();
};

class StatementRowHolder final: public StatementJSObjectHolder {
public:
  explicit StatementRowHolder(nsIXPConnectJSObjectHolder* aHolder)
    : StatementJSObjectHolder(aHolder) {
  }

private:
  virtual ~StatementRowHolder();
};

} // namespace storage
} // namespace mozilla

#endif // MOZSTORAGESTATEMENTJSHELPER_H