1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/style/nsStyleStructFwd.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,67 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + * Forward declarations to avoid including all of nsStyleStruct.h.
1.11 + */
1.12 +
1.13 +#ifndef nsStyleStructFwd_h_
1.14 +#define nsStyleStructFwd_h_
1.15 +
1.16 +enum nsStyleStructID {
1.17 +
1.18 +/*
1.19 + * Define the constants eStyleStruct_Font, etc.
1.20 + *
1.21 + * The C++ standard, section 7.2, guarantees that enums begin with 0 and
1.22 + * increase by 1.
1.23 + *
1.24 + * We separate the IDs of Reset and Inherited structs so that we can use
1.25 + * the IDs as indices (offset by nsStyleStructID_*_Start) into arrays of
1.26 + * one type or the other.
1.27 + */
1.28 +
1.29 +nsStyleStructID_Inherited_Start = 0,
1.30 +// a dummy value so the value after it is the same as ..._Inherited_Start
1.31 +nsStyleStructID_DUMMY1 = nsStyleStructID_Inherited_Start - 1,
1.32 +
1.33 +#define STYLE_STRUCT_INHERITED(name, checkdata_cb) \
1.34 + eStyleStruct_##name,
1.35 +#define STYLE_STRUCT_RESET(name, checkdata_cb)
1.36 +#include "nsStyleStructList.h"
1.37 +#undef STYLE_STRUCT_INHERITED
1.38 +#undef STYLE_STRUCT_RESET
1.39 +
1.40 +nsStyleStructID_Reset_Start,
1.41 +// a dummy value so the value after it is the same as ..._Reset_Start
1.42 +nsStyleStructID_DUMMY2 = nsStyleStructID_Reset_Start - 1,
1.43 +
1.44 +#define STYLE_STRUCT_RESET(name, checkdata_cb) \
1.45 + eStyleStruct_##name,
1.46 +#define STYLE_STRUCT_INHERITED(name, checkdata_cb)
1.47 +#include "nsStyleStructList.h"
1.48 +#undef STYLE_STRUCT_INHERITED
1.49 +#undef STYLE_STRUCT_RESET
1.50 +
1.51 +// one past the end; length of 0-based list
1.52 +nsStyleStructID_Length,
1.53 +
1.54 +nsStyleStructID_Inherited_Count =
1.55 + nsStyleStructID_Reset_Start - nsStyleStructID_Inherited_Start,
1.56 +nsStyleStructID_Reset_Count =
1.57 + nsStyleStructID_Length - nsStyleStructID_Reset_Start,
1.58 +
1.59 +// An ID used for properties that are not in style structs. This is
1.60 +// used only in some users of nsStyleStructID, such as
1.61 +// nsCSSProps::kSIDTable, including some that store SIDs in a bitfield,
1.62 +// such as nsCSSCompressedDataBlock::mStyleBits.
1.63 +eStyleStruct_BackendOnly = nsStyleStructID_Length
1.64 +
1.65 +};
1.66 +
1.67 +// A bit corresponding to each struct ID
1.68 +#define NS_STYLE_INHERIT_BIT(sid_) (1 << uint64_t(eStyleStruct_##sid_))
1.69 +
1.70 +#endif /* nsStyleStructFwd_h_ */
