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100 lines
4.0 KiB
Python
Executable File
100 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (C) 2013 Google Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import sys
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import in_generator
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import name_utilities
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from name_utilities import lower_first
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import template_expander
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class RuntimeFeatureWriter(in_generator.Writer):
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class_name = 'RuntimeEnabledFeatures'
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filters = {
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'enable_conditional': name_utilities.enable_conditional_if_endif,
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}
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# FIXME: valid_values and defaults should probably roll into one object.
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valid_values = {
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'status': ['stable', 'experimental', 'test', 'deprecated'],
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}
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defaults = {
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'condition' : None,
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'depends_on' : [],
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'custom': False,
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'status': None,
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}
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_status_aliases = {
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'deprecated': 'test',
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}
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def __init__(self, in_file_path):
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super(RuntimeFeatureWriter, self).__init__(in_file_path)
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self._outputs = {(self.class_name + '.h'): self.generate_header,
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(self.class_name + '.cpp'): self.generate_implementation,
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}
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self._features = self.in_file.name_dictionaries
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# Make sure the resulting dictionaries have all the keys we expect.
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for feature in self._features:
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feature['first_lowered_name'] = lower_first(feature['name'])
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feature['status'] = self._status_aliases.get(feature['status'], feature['status'])
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# Most features just check their isFooEnabled bool
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# but some depend on more than one bool.
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enabled_condition = 'is%sEnabled' % feature['name']
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for dependant_name in feature['depends_on']:
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enabled_condition += ' && is%sEnabled' % dependant_name
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feature['enabled_condition'] = enabled_condition
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self._non_custom_features = filter(lambda feature: not feature['custom'], self._features)
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def _feature_sets(self):
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# Another way to think of the status levels is as "sets of features"
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# which is how we're referring to them in this generator.
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return [status for status in self.valid_values['status'] if status not in self._status_aliases]
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@template_expander.use_jinja(class_name + '.h.tmpl', filters=filters)
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def generate_header(self):
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return {
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'features': self._features,
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'feature_sets': self._feature_sets(),
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}
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@template_expander.use_jinja(class_name + '.cpp.tmpl', filters=filters)
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def generate_implementation(self):
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return {
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'features': self._features,
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'feature_sets': self._feature_sets(),
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}
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if __name__ == '__main__':
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in_generator.Maker(RuntimeFeatureWriter).main(sys.argv)
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