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https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
Bug 873368 - Automatically generate nsStyleStructList.h. r=dbaron,ted
This commit is contained in:
Cameron McCormack
parent
c8e14e42a7
commit
015e4d0a4b
@ -34,6 +34,9 @@ LOCAL_INCLUDES += \
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-I$(srcdir)/../../content/xul/document/src \
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$(NULL)
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nsStyleStructList.h : $(srcdir)/generate-stylestructlist.py
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$(PYTHON) $< > $@
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_FILES = \
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contenteditable.css \
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designmode.css \
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@ -42,7 +45,10 @@ _FILES = \
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TopLevelVideoDocument.css \
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$(NULL)
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GARBAGE += $(addprefix $(DIST)/bin/res/,$(_FILES))
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GARBAGE += \
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$(addprefix $(DIST)/bin/res/,$(_FILES)) \
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nsStyleStructList.h \
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$(NULL)
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libs:: $(_FILES)
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$(INSTALL) $^ $(DIST)/bin/res
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169
layout/style/generate-stylestructlist.py
Normal file
169
layout/style/generate-stylestructlist.py
Normal file
@ -0,0 +1,169 @@
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#!/usr/bin/env python
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# This script generates nsStyleStructList.h, which contains macro invocations
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# that can be used for three things:
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#
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# 1. To generate code for each inherited style struct.
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# 2. To generate code for each reset style struct.
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# 3. To generate a tree of nested if statements that can be used to run
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# some code on each style struct.
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#
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# As an example, if we assume that we have only four style structs, the
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# generated tree of nested if statements looks like this:
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#
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# if (STYLE_STRUCT_TEST < 4) {
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# if (STYLE_STRUCT_TEST < 2) {
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# if (STYLE_STRUCT_TEST == 0) {
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# ... code for style struct with id 0 ...
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# } else {
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# ... code for style struct with id 1 ...
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# }
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# } else {
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# if (STYLE_STRUCT_TEST == 2) {
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# ... code for style struct with id 2 ...
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# } else {
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# ... code for style struct with id 3 ...
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# }
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# }
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# }
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#
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# The TOPLEVELBRANCHES variable controls how widely we branch on the outermost
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# if statement. In the example above, it splits the search space in 2, but with
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# a larger number of style structs to test -- particularly when the number is
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# closer to one power of two than the next higher one -- the average number of
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# comparisons can be reduced by splitting the top level check into more than 2.
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import math
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# List of style structs and their corresponding Check callback functions,
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# if any.
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STYLE_STRUCTS = [("INHERITED",) + x for x in [
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# Inherited style structs.
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("Font", "CheckFontCallback"),
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("Color", "CheckColorCallback"),
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("List", "nullptr"),
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("Text", "CheckTextCallback"),
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("Visibility", "nullptr"),
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("Quotes", "nullptr"),
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("UserInterface", "nullptr"),
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("TableBorder", "nullptr"),
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("SVG", "nullptr"),
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]] + [("RESET",) + x for x in [
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# Reset style structs.
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("Background", "nullptr"),
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("Position", "nullptr"),
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("TextReset", "nullptr"),
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("Display", "nullptr"),
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("Content", "nullptr"),
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("UIReset", "nullptr"),
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("Table", "nullptr"),
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("Margin", "nullptr"),
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("Padding", "nullptr"),
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("Border", "nullptr"),
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("Outline", "nullptr"),
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("XUL", "nullptr"),
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("SVGReset", "nullptr"),
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("Column", "nullptr"),
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]]
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# How widely to branch on the outermost if statement.
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TOPLEVELBRANCHES = 4
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# ---- Generate nsStyleStructList.h ----
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count = len(STYLE_STRUCTS)
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def nextPowerOf2(x):
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return int(pow(2, math.ceil(math.log(x, 2))))
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def printEntry(i):
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print "STYLE_STRUCT_%s(%s, %s)" % STYLE_STRUCTS[i]
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def printTestTree(min, max, depth, branches):
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indent = " " * depth
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if min == count - 1 and max >= count:
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print " STYLE_STRUCT_TEST_CODE(%sNS_ASSERTION(STYLE_STRUCT_TEST == %d, \"out of range\");)" % (indent, min)
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printEntry(min)
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elif max - min == 2:
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print " STYLE_STRUCT_TEST_CODE(%sif (STYLE_STRUCT_TEST == %d) {)" % (indent, min)
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printEntry(min)
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print " STYLE_STRUCT_TEST_CODE(%s} else {)" % indent
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printEntry(min + 1)
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print " STYLE_STRUCT_TEST_CODE(%s})" % indent
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elif min < count:
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mid = min + (max - min) / branches
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print " STYLE_STRUCT_TEST_CODE(%sif (STYLE_STRUCT_TEST < %d) {)" % (indent, mid)
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printTestTree(min, mid, depth + 1, 2)
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for branch in range(1, branches):
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lo = min + branch * (max - min) / branches
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hi = min + (branch + 1) * (max - min) / branches
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if lo >= count:
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break
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if branch == branches - 1 or hi >= count:
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print " STYLE_STRUCT_TEST_CODE(%s} else {)" % indent
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else:
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print " STYLE_STRUCT_TEST_CODE(%s} else if (STYLE_STRUCT_TEST < %d) {)" % (indent, hi)
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printTestTree(lo, hi, depth + 1, 2)
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print " STYLE_STRUCT_TEST_CODE(%s})" % indent
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HEADER = """/* THIS FILE IS AUTOGENERATED BY generate-stylestructlist.py - DO NOT EDIT */
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// IWYU pragma: private, include "nsStyleStructFwd.h"
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/*
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* list of structs that contain the data provided by nsStyleContext, the
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* internal API for computed style data for an element
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*/
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/*
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* This file is intended to be used by different parts of the code, with
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* the STYLE_STRUCT macro (or the STYLE_STRUCT_INHERITED and
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* STYLE_STRUCT_RESET pair of macros) defined in different ways.
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*/
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#ifndef STYLE_STRUCT_INHERITED
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#define STYLE_STRUCT_INHERITED(name, checkdata_cb) \\
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STYLE_STRUCT(name, checkdata_cb)
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#define UNDEF_STYLE_STRUCT_INHERITED
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#endif
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#ifndef STYLE_STRUCT_RESET
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#define STYLE_STRUCT_RESET(name, checkdata_cb) \\
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STYLE_STRUCT(name, checkdata_cb)
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#define UNDEF_STYLE_STRUCT_RESET
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#endif
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#ifdef STYLE_STRUCT_TEST
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#define STYLE_STRUCT_TEST_CODE(c) c
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#else
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#define STYLE_STRUCT_TEST_CODE(c)
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#endif
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// The inherited structs are listed before the Reset structs.
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// nsStyleStructID assumes this is the case, and callers other than
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// nsStyleStructFwd.h that want the structs in id-order just define
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// STYLE_STRUCT rather than including the file twice.
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"""
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FOOTER = """
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#ifdef UNDEF_STYLE_STRUCT_INHERITED
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#undef STYLE_STRUCT_INHERITED
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#undef UNDEF_STYLE_STRUCT_INHERITED
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#endif
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#ifdef UNDEF_STYLE_STRUCT_RESET
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#undef STYLE_STRUCT_RESET
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#undef UNDEF_STYLE_STRUCT_RESET
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#endif
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#undef STYLE_STRUCT_TEST_CODE
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"""
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print HEADER
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printTestTree(0, nextPowerOf2(count), 0, TOPLEVELBRANCHES)
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print FOOTER
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@ -1,138 +0,0 @@
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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// vim:cindent:ts=8:et:sw=4:
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// IWYU pragma: private, include "nsStyleStructFwd.h"
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/*
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* list of structs that contain the data provided by nsStyleContext, the
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* internal API for computed style data for an element
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*/
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/*
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* This file is intended to be used by different parts of the code, with
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* the STYLE_STRUCT macro (or the STYLE_STRUCT_INHERITED and
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* STYLE_STRUCT_RESET pair of macros) defined in different ways.
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*/
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#ifndef STYLE_STRUCT_INHERITED
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#define STYLE_STRUCT_INHERITED(name, checkdata_cb) \
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STYLE_STRUCT(name, checkdata_cb)
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#define UNDEF_STYLE_STRUCT_INHERITED
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#endif
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#ifndef STYLE_STRUCT_RESET
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#define STYLE_STRUCT_RESET(name, checkdata_cb) \
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STYLE_STRUCT(name, checkdata_cb)
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#define UNDEF_STYLE_STRUCT_RESET
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#endif
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#ifdef STYLE_STRUCT_TEST
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#define STYLE_STRUCT_TEST_CODE(c) c
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#else
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#define STYLE_STRUCT_TEST_CODE(c)
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#endif
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// The inherited structs must be listed before the Reset structs.
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// nsStyleStructID assumes this is the case, and callers other than
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// nsStyleStructFwd.h that want the structs in id-order just define
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// STYLE_STRUCT rather than including the file twice.
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STYLE_STRUCT_TEST_CODE(if (STYLE_STRUCT_TEST < 8) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST < 4) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST < 2) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 0) {)
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STYLE_STRUCT_INHERITED(Font, CheckFontCallback)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_INHERITED(Color, CheckColorCallback)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 2) {)
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STYLE_STRUCT_INHERITED(List, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_INHERITED(Text, CheckTextCallback)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST < 6) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 4) {)
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STYLE_STRUCT_INHERITED(Visibility, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_INHERITED(Quotes, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 6) {)
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STYLE_STRUCT_INHERITED(UserInterface, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_INHERITED(TableBorder, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE(} else if (STYLE_STRUCT_TEST < 16) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST < 12) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST < 10) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 8) {)
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STYLE_STRUCT_INHERITED(SVG, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_RESET(Background, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 10) {)
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STYLE_STRUCT_RESET(Position, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_RESET(TextReset, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST < 14) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 12) {)
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STYLE_STRUCT_RESET(Display, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_RESET(Content, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 14) {)
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STYLE_STRUCT_RESET(UIReset, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_RESET(Table, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE(} else if (STYLE_STRUCT_TEST < 20) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST < 18) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 16) {)
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STYLE_STRUCT_RESET(Margin, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_RESET(Padding, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 18) {)
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STYLE_STRUCT_RESET(Border, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_RESET(Outline, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE(} else if (STYLE_STRUCT_TEST < 22) {)
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STYLE_STRUCT_TEST_CODE( if (STYLE_STRUCT_TEST == 20) {)
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STYLE_STRUCT_RESET(XUL, nullptr)
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STYLE_STRUCT_TEST_CODE( } else {)
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STYLE_STRUCT_RESET(SVGReset, nullptr)
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STYLE_STRUCT_TEST_CODE( })
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STYLE_STRUCT_TEST_CODE(} else {)
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STYLE_STRUCT_TEST_CODE( NS_ASSERTION(STYLE_STRUCT_TEST == 22, "out of range");)
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STYLE_STRUCT_RESET(Column, nullptr)
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STYLE_STRUCT_TEST_CODE(})
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#ifdef UNDEF_STYLE_STRUCT_INHERITED
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#undef STYLE_STRUCT_INHERITED
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#undef UNDEF_STYLE_STRUCT_INHERITED
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#endif
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#ifdef UNDEF_STYLE_STRUCT_RESET
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#undef STYLE_STRUCT_RESET
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#undef UNDEF_STYLE_STRUCT_RESET
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#endif
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#undef STYLE_STRUCT_TEST_CODE
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