From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- layout/style/nsStyleStructFwd.h | 79 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 layout/style/nsStyleStructFwd.h (limited to 'layout/style/nsStyleStructFwd.h') diff --git a/layout/style/nsStyleStructFwd.h b/layout/style/nsStyleStructFwd.h new file mode 100644 index 0000000000..5187a764b9 --- /dev/null +++ b/layout/style/nsStyleStructFwd.h @@ -0,0 +1,79 @@ +/* -*- 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(aID); + } +}; + +} // namespace mozilla + +#endif /* nsStyleStructFwd_h_ */ -- cgit v1.2.3