DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (b6d82b1a6b02)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

/*
 * Forward declarations to avoid including all of nsStyleStruct.h.
 */

#ifndef nsStyleStructFwd_h_
#define nsStyleStructFwd_h_

namespace mozilla {

enum class StyleStructID : uint32_t {
/*
 * Define the constants eStyleStruct_Font, etc.
 *
 * The C++ standard, section 7.2, guarantees that enums begin with 0 and
 * increase by 1.
 *
 * Note that we rely on the inherited structs being before the rest in
 * ComputedStyle.
 */
#define STYLE_STRUCT_INHERITED(name) name,
#define STYLE_STRUCT_RESET(name)
#include "nsStyleStructList.h"
#undef STYLE_STRUCT_INHERITED
#undef STYLE_STRUCT_RESET

#define STYLE_STRUCT_RESET(name) name,
#define STYLE_STRUCT_INHERITED(name)
#include "nsStyleStructList.h"
#undef STYLE_STRUCT_INHERITED
#undef STYLE_STRUCT_RESET
};

struct StyleStructConstants {
  static const uint32_t kStyleStructCount =
#define STYLE_STRUCT_RESET(name) 1 +
#define STYLE_STRUCT_INHERITED(name) 1 +
#include "nsStyleStructList.h"
#undef STYLE_STRUCT_INHERITED
#undef STYLE_STRUCT_RESET
      0;

  static const uint32_t kInheritedStyleStructCount =
#define STYLE_STRUCT_RESET(name)
#define STYLE_STRUCT_INHERITED(name) 1 +
#include "nsStyleStructList.h"
#undef STYLE_STRUCT_INHERITED
#undef STYLE_STRUCT_RESET
      0;

  static const uint32_t kResetStyleStructCount =
#define STYLE_STRUCT_RESET(name) 1 +
#define STYLE_STRUCT_INHERITED(name)
#include "nsStyleStructList.h"
#undef STYLE_STRUCT_INHERITED
#undef STYLE_STRUCT_RESET
      0;

  static_assert(kStyleStructCount <= 32, "Bitmasks must be bigger!");

  static const uint32_t kAllStructsMask = (1 << kStyleStructCount) - 1;
  static const uint32_t kInheritedStructsMask =
      (1 << kInheritedStyleStructCount) - 1;
  static const uint32_t kResetStructsMask =
      kAllStructsMask & (~kInheritedStructsMask);

  static uint32_t BitFor(StyleStructID aID) {
    return 1 << static_cast<uint32_t>(aID);
  }
};

}  // namespace mozilla

#endif /* nsStyleStructFwd_h_ */