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1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
2 # Copyright (C) 2013 Google Inc. All rights reserved. | 2 # Copyright (C) 2013 Google Inc. All rights reserved. |
3 # | 3 # |
4 # Redistribution and use in source and binary forms, with or without | 4 # Redistribution and use in source and binary forms, with or without |
5 # modification, are permitted provided that the following conditions are | 5 # modification, are permitted provided that the following conditions are |
6 # met: | 6 # met: |
7 # | 7 # |
8 # * Redistributions of source code must retain the above copyright | 8 # * Redistributions of source code must retain the above copyright |
9 # notice, this list of conditions and the following disclaimer. | 9 # notice, this list of conditions and the following disclaimer. |
10 # * Redistributions in binary form must reproduce the above | 10 # * Redistributions in binary form must reproduce the above |
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36 | 36 |
37 | 37 |
38 class RuntimeFeatureWriter(in_generator.Writer): | 38 class RuntimeFeatureWriter(in_generator.Writer): |
39 class_name = 'RuntimeEnabledFeatures' | 39 class_name = 'RuntimeEnabledFeatures' |
40 filters = { | 40 filters = { |
41 'enable_conditional': name_utilities.enable_conditional_if_endif, | 41 'enable_conditional': name_utilities.enable_conditional_if_endif, |
42 } | 42 } |
43 | 43 |
44 # FIXME: valid_values and defaults should probably roll into one object. | 44 # FIXME: valid_values and defaults should probably roll into one object. |
45 valid_values = { | 45 valid_values = { |
46 'status': ['stable', 'experimental', 'test', 'deprecated'], | 46 'status': ['stable', 'experimental', 'test'], |
47 } | 47 } |
48 defaults = { | 48 defaults = { |
49 'condition': None, | 49 'condition': None, |
50 'implied_by': [], | 50 'implied_by': [], |
51 'depends_on': [], | 51 'depends_on': [], |
52 'custom': False, | 52 'custom': False, |
53 'status': None, | 53 'status': None, |
54 } | 54 } |
55 | 55 |
56 _status_aliases = { | |
57 'deprecated': 'test', | |
58 } | |
59 | |
60 def __init__(self, in_file_path): | 56 def __init__(self, in_file_path): |
61 super(RuntimeFeatureWriter, self).__init__(in_file_path) | 57 super(RuntimeFeatureWriter, self).__init__(in_file_path) |
62 self._outputs = {(self.class_name + '.h'): self.generate_header, | 58 self._outputs = {(self.class_name + '.h'): self.generate_header, |
63 (self.class_name + '.cpp'): self.generate_implementatio
n, | 59 (self.class_name + '.cpp'): self.generate_implementatio
n, |
64 } | 60 } |
65 | 61 |
66 self._features = self.in_file.name_dictionaries | 62 self._features = self.in_file.name_dictionaries |
67 # Make sure the resulting dictionaries have all the keys we expect. | 63 # Make sure the resulting dictionaries have all the keys we expect. |
68 for feature in self._features: | 64 for feature in self._features: |
69 feature['first_lowered_name'] = lower_first(feature['name']) | 65 feature['first_lowered_name'] = lower_first(feature['name']) |
70 feature['status'] = self._status_aliases.get(feature['status'], feat
ure['status']) | |
71 # Most features just check their isFooEnabled bool | 66 # Most features just check their isFooEnabled bool |
72 # but some depend on or are implied by other bools. | 67 # but some depend on or are implied by other bools. |
73 enabled_condition = 'is%sEnabled' % feature['name'] | 68 enabled_condition = 'is%sEnabled' % feature['name'] |
74 assert not feature['implied_by'] or not feature['depends_on'], 'Only
one of implied_by and depends_on is allowed' | 69 assert not feature['implied_by'] or not feature['depends_on'], 'Only
one of implied_by and depends_on is allowed' |
75 for implied_by_name in feature['implied_by']: | 70 for implied_by_name in feature['implied_by']: |
76 enabled_condition += ' || is%sEnabled' % implied_by_name | 71 enabled_condition += ' || is%sEnabled' % implied_by_name |
77 for dependant_name in feature['depends_on']: | 72 for dependant_name in feature['depends_on']: |
78 enabled_condition += ' && is%sEnabled' % dependant_name | 73 enabled_condition += ' && is%sEnabled' % dependant_name |
79 feature['enabled_condition'] = enabled_condition | 74 feature['enabled_condition'] = enabled_condition |
80 self._non_custom_features = filter(lambda feature: not feature['custom']
, self._features) | 75 self._non_custom_features = filter(lambda feature: not feature['custom']
, self._features) |
81 | 76 |
82 def _feature_sets(self): | 77 def _feature_sets(self): |
83 # Another way to think of the status levels is as "sets of features" | 78 # Another way to think of the status levels is as "sets of features" |
84 # which is how we're referring to them in this generator. | 79 # which is how we're referring to them in this generator. |
85 return [status for status in self.valid_values['status'] if status not i
n self._status_aliases] | 80 return list(self.valid_values['status']) |
86 | 81 |
87 @template_expander.use_jinja(class_name + '.h.tmpl', filters=filters) | 82 @template_expander.use_jinja(class_name + '.h.tmpl', filters=filters) |
88 def generate_header(self): | 83 def generate_header(self): |
89 return { | 84 return { |
90 'features': self._features, | 85 'features': self._features, |
91 'feature_sets': self._feature_sets(), | 86 'feature_sets': self._feature_sets(), |
92 } | 87 } |
93 | 88 |
94 @template_expander.use_jinja(class_name + '.cpp.tmpl', filters=filters) | 89 @template_expander.use_jinja(class_name + '.cpp.tmpl', filters=filters) |
95 def generate_implementation(self): | 90 def generate_implementation(self): |
96 return { | 91 return { |
97 'features': self._features, | 92 'features': self._features, |
98 'feature_sets': self._feature_sets(), | 93 'feature_sets': self._feature_sets(), |
99 } | 94 } |
100 | 95 |
101 | 96 |
102 if __name__ == '__main__': | 97 if __name__ == '__main__': |
103 in_generator.Maker(RuntimeFeatureWriter).main(sys.argv) | 98 in_generator.Maker(RuntimeFeatureWriter).main(sys.argv) |
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