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# 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,
import runpy
import sys
import string
import argparse
class PropertyWrapper(object):
__slots__ = ["index", "prop", "idlname"]
def __init__(self, index, prop):
self.index = index
self.prop = prop
if "Internal" in prop.flags:
self.idlname = None
else:
idl_name = prop.method
if not idl_name.startswith("Moz"):
idl_name = idl_name[0].lower() + idl_name[1:]
self.idlname = idl_name
def __getattr__(self, name):
return getattr(self.prop, name)
def generate(output, dataFile):
output.write(
"""/* THIS IS AN AUTOGENERATED FILE. DO NOT EDIT */
/* processed file that defines CSS property tables that can't be generated
with the pre-processor, designed to be #included in nsCSSProps.cpp */
"""
)
raw_properties = runpy.run_path(dataFile)["data"]
properties = [
PropertyWrapper(i, p)
for i, p in enumerate(raw_properties.values())
if p.type() != "alias"
]
# Generate kIDLNameTable
output.write(
"const char* const nsCSSProps::" "kIDLNameTable[eCSSProperty_COUNT] = {\n"
)
for p in properties:
if p.idlname is None:
output.write(" nullptr, // {}\n".format(p.name))
else:
output.write(' "{}",\n'.format(p.idlname))
output.write("};\n\n")
# Generate kIDLNameSortPositionTable
ps = sorted(properties, key=lambda p: p.idlname if p.idlname else "")
ps = [(p, position) for position, p in enumerate(ps)]
ps.sort(key=lambda item: item[0].index)
output.write(
"const int32_t nsCSSProps::"
"kIDLNameSortPositionTable[eCSSProperty_COUNT] = {\n"
)
for p, position in ps:
output.write(" {},\n".format(position))
output.write("};\n\n")
# Generate preferences table
output.write(
"const nsCSSProps::PropertyPref " "nsCSSProps::kPropertyPrefTable[] = {\n"
)
for p in raw_properties.values():
if not p.pref:
continue
if p.type() != "alias":
prop_id = "eCSSProperty_" + p.id
else:
prop_id = "eCSSPropertyAlias_" + p.alias_id
output.write(' {{ {}, "{}" }},\n'.format(prop_id, p.pref))
output.write(" { eCSSProperty_UNKNOWN, nullptr },\n")
output.write("};\n\n")
# Generate shorthand subprop tables
names = []
for p in properties:
if p.type() != "shorthand":
continue
name = "g{}SubpropTable".format(p.method)
names.append(name)
output.write("static const nsCSSPropertyID {}[] = {{\n".format(name))
for subprop in p.subprops:
output.write(" eCSSProperty_{},\n".format(subprop))
output.write(" eCSSProperty_UNKNOWN\n")
output.write("};\n\n")
output.write("const nsCSSPropertyID* const\n")
output.write(
"nsCSSProps::kSubpropertyTable["
"eCSSProperty_COUNT - eCSSProperty_COUNT_no_shorthands"
"] = {\n"
)
for name in names:
output.write(" {},\n".format(name))
output.write("};\n\n")
# Generate assertions
msg = (
"GenerateCSSPropsGenerated.py did not list properties "
"in nsCSSPropertyID order"
)
for p in properties:
output.write(
'static_assert(eCSSProperty_{} == {}, "{}");\n'.format(p.id, p.index, msg)
)