/usr/lib/python2.7/dist-packages/vamos/rsf2model/TranslatedModel.py is in undertaker 1.6-2.
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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 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 | """rsf2model - extracts presence implications from kconfig dumps"""
# Copyright (C) 2011 Christian Dietrich <christian.dietrich@informatik.uni-erlangen.de>
# Copyright (C) 2014 Stefan Hengelein <stefan.hengelein@fau.de>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
from vamos.rsf2model import tools
from vamos.rsf2model.RsfReader import Choice
from vamos.rsf2model import BoolRewriter
from vamos.rsf2model.helper import BoolParserException
class TranslatedModel(tools.UnicodeMixin):
def __init__(self, rsf):
tools.UnicodeMixin.__init__(self)
self.symbols = []
self.deps = {}
self.defaultSelects = {}
self.always_on = []
self.rsf = rsf
for t in self.rsf.options().items():
option = t[1]
self.translate_option(option)
for t in self.rsf.options().items():
option = t[1]
if type(option) == Choice:
self.translate_choice(option)
for (item, default_set) in self.rsf.collect("Default", 0, True).items():
for default in default_set:
option = self.rsf.options().get(item, None)
if option:
try:
self.translate_default(option, default)
except BoolParserException:
# Parsing expression failed, just ignore it
pass
for (item, select_set) in self.rsf.collect("ItemSelects", 0, True).items():
for select in select_set:
option = self.rsf.options().get(item, None)
if option:
try:
self.translate_select(option, select)
except BoolParserException:
# Parsing of a substring failed, just ignore it
pass
def translate_option(self, option):
# Generate symbols
symbol = option.symbol()
self.symbols.append(symbol)
self.deps[symbol] = []
self.defaultSelects[symbol] = []
if option.omnipresent():
self.always_on.append(option.symbol())
if option.tristate():
symbol_module = option.symbol_module()
self.symbols.append(symbol_module)
self.deps[symbol_module] = []
# mutual exclusion for tristate symbols
self.deps[symbol].append("!%s" % symbol_module)
self.deps[symbol_module].append("!%s" % symbol)
self.deps[symbol_module].append("CONFIG_MODULES")
# Add dependency
if option.tristate():
# For tristate symbols (without _MODULE) the dependency must evaluate to y
dep = option.dependency(eval_to_module = False)
if dep:
self.deps[symbol].insert(0, dep)
# for _MODULE also "m" is ok
dep = option.dependency(eval_to_module = True)
if dep:
self.deps[option.symbol_module()].insert(0, dep)
else:
dep = option.dependency(eval_to_module = True)
if dep:
self.deps[symbol].insert(0, dep)
def translate_choice(self, choice):
for (symbol, dep) in choice.insert_forward_references().items():
self.deps[symbol].extend(dep)
def translate_default(self, option, dependency):
# dependency: [state, if <expr>]
if len(dependency) != 2:
return
if type(option) == Choice or option.tristate() or option.prompts() != 0:
return
[state, cond] = dependency
if state == "y" and cond == "y" \
and option.prompts() == 0 \
and not option.tristate() \
and not option.has_depends():
self.always_on.append(option.symbol())
# we add a free item to the defaultSelect list. this is
# important in the following scenario:
# 1. Item ist default on
# 2. item is selected by other item
# 3. without the free item it is implied, that the second
# item is on, byt with default to y this isn't right
#
# Difference:
# A DEPS && (SELECT1)
# A DEPS && (__FREE__ || SELECT1)
self.defaultSelects[option.symbol()].append(tools.new_free_item())
elif state == "y" or cond == "y":
expr = state
if state == "y":
expr = cond
expr = str(BoolRewriter.BoolRewriter(self.rsf, expr, eval_to_module = True).rewrite())
self.defaultSelects[option.symbol()].append(expr)
# Default FOO "BAR" "BAZ"
elif len(state) > 1 and len(cond) > 1:
expr = str(BoolRewriter.BoolRewriter(self.rsf, "(%s) && (%s)" % (state, cond),
eval_to_module = True).rewrite())
self.defaultSelects[option.symbol()].append(expr)
def translate_select(self, option, select):
#pylint: disable=R0912
"""
@param option the option that declares the 'select' verb
@param select: the option that is unconditionally slected (if option is selected
select is a tuple of (seleted, condition)
"""
if type(option) == Choice:
return
if len(select) != 2:
return
(selected, expr) = select
selected = self.rsf.options().get(selected, None)
if not selected:
return
# We only look on boolean selected options
if type(selected) == Choice or selected.tristate():
return
if expr == "y":
# select foo if y
if selected.prompts() == 0:
self.defaultSelects[selected.symbol()].append(option.symbol())
self.deps[option.symbol()].append(selected.symbol())
if option.tristate():
if selected.prompts() == 0:
self.defaultSelects[selected.symbol()].append(option.symbol_module())
self.deps[option.symbol_module()].append(selected.symbol())
else:
# select foo if expr
expr = str(BoolRewriter.BoolRewriter(self.rsf, expr, eval_to_module = True).rewrite())
if expr == "":
# We are in a Choice, and the choice is the only dependency....
imply = selected.symbol()
else:
imply = "((%s) -> %s)" %(expr, selected.symbol())
if selected.prompts() == 0:
self.defaultSelects[selected.symbol()].append(option.symbol())
self.deps[option.symbol()].append(imply)
if option.tristate():
if selected.prompts() == 0:
self.defaultSelects[selected.symbol()].append(option.symbol_module())
self.deps[option.symbol_module()].append(imply)
def __unicode__(self):
result = u""
result += u"I: Items-Count: %d\n" % len(self.symbols)
result += u"I: Format: <variable> [presence condition]\n"
result += "UNDERTAKER_SET SCHEMA_VERSION 1.1\n"
if len(self.always_on) > 0:
result += "UNDERTAKER_SET ALWAYS_ON " + (" ".join(['"' + x + '"' for x in self.always_on])) + "\n"
for symbol in self.symbols:
expression = ""
deps = self.deps.get(symbol, [])
if symbol in self.defaultSelects and len(self.defaultSelects[symbol]) > 0:
dS = self.defaultSelects[symbol]
deps.append("(" + (" || ".join(dS)) + ")")
expression = " && ".join(deps)
if expression == "":
result += "%s\n" % symbol
else:
result += "%s \"%s\"\n" % (symbol, expression)
return result
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