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1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
2 # Copyright 2016 The Chromium Authors. All rights reserved. | 2 # Copyright 2016 The Chromium Authors. All rights reserved. |
3 # Use of this source code is governed by a BSD-style license that can be | 3 # Use of this source code is governed by a BSD-style license that can be |
4 # found in the LICENSE file. | 4 # found in the LICENSE file. |
5 | 5 |
6 import math | 6 import math |
7 import sys | 7 import sys |
8 | 8 |
9 import json5_generator | 9 import json5_generator |
10 import template_expander | 10 import template_expander |
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98 Should be in upper camel case. | 98 Should be in upper camel case. |
99 property_name: Name of the property that the field is part of. | 99 property_name: Name of the property that the field is part of. |
100 type_name: Name of the C++ type exposed by the generated interface (e.g.
EClear, int). | 100 type_name: Name of the C++ type exposed by the generated interface (e.g.
EClear, int). |
101 field_template: Determines the interface generated for the field. Can be
one of: | 101 field_template: Determines the interface generated for the field. Can be
one of: |
102 keyword, flag, or monotonic_flag. | 102 keyword, flag, or monotonic_flag. |
103 size: Number of bits needed for storage. | 103 size: Number of bits needed for storage. |
104 default_value: Default value for this field when it is first initialized
. | 104 default_value: Default value for this field when it is first initialized
. |
105 """ | 105 """ |
106 | 106 |
107 def __init__(self, field_role, name_for_methods, property_name, type_name, | 107 def __init__(self, field_role, name_for_methods, property_name, type_name, |
108 field_template, size, default_value, properties, **kwargs): | 108 field_template, size, default_value, getter_method_name, setter
_method_name, |
| 109 initial_method_name, **kwargs): |
109 """Creates a new field.""" | 110 """Creates a new field.""" |
110 self.name = class_member_name(name_for_methods) | 111 self.name = class_member_name(name_for_methods) |
111 self.property_name = property_name | 112 self.property_name = property_name |
112 self.type_name = type_name | 113 self.type_name = type_name |
113 self.field_template = field_template | 114 self.field_template = field_template |
114 self.size = size | 115 self.size = size |
115 self.default_value = default_value | 116 self.default_value = default_value |
116 | 117 |
117 # Field role: one of these must be true | 118 # Field role: one of these must be true |
118 self.is_property = field_role == 'property' | 119 self.is_property = field_role == 'property' |
119 self.is_inherited_flag = field_role == 'inherited_flag' | 120 self.is_inherited_flag = field_role == 'inherited_flag' |
120 self.is_nonproperty = field_role == 'nonproperty' | 121 self.is_nonproperty = field_role == 'nonproperty' |
121 assert (self.is_property, self.is_inherited_flag, self.is_nonproperty).c
ount(True) == 1, \ | 122 assert (self.is_property, self.is_inherited_flag, self.is_nonproperty).c
ount(True) == 1, \ |
122 'Field role has to be exactly one of: property, inherited_flag, nonp
roperty' | 123 'Field role has to be exactly one of: property, inherited_flag, nonp
roperty' |
123 | 124 |
124 if not self.is_inherited_flag: | 125 if not self.is_inherited_flag: |
125 self.is_inherited = kwargs.pop('inherited') | 126 self.is_inherited = kwargs.pop('inherited') |
126 self.is_independent = kwargs.pop('independent') | 127 self.is_independent = kwargs.pop('independent') |
127 assert self.is_inherited or not self.is_independent, 'Only inherited
fields can be independent' | 128 assert self.is_inherited or not self.is_independent, 'Only inherited
fields can be independent' |
128 | 129 |
129 self.is_inherited_method_name = method_name(join_name(name_for_metho
ds, 'is inherited')) | 130 self.is_inherited_method_name = method_name(join_name(name_for_metho
ds, 'is inherited')) |
130 | 131 |
131 # Method names | 132 # Method names |
132 if 'getter' in properties and not self.is_inherited_flag: | 133 self.getter_method_name = getter_method_name |
133 self.getter_method_name = properties['getter'] | 134 self.setter_method_name = setter_method_name |
134 else: | 135 self.initial_method_name = initial_method_name |
135 getter_prefix = 'Get' if name_for_methods == self.type_name else '' | |
136 self.getter_method_name = method_name(join_name(getter_prefix, name_fo
r_methods)) | |
137 self.setter_method_name = method_name(join_name('Set', name_for_methods)
) | |
138 self.initial_method_name = method_name(join_name('Initial', name_for_met
hods)) | |
139 self.resetter_method_name = method_name(join_name('Reset', name_for_meth
ods)) | 136 self.resetter_method_name = method_name(join_name('Reset', name_for_meth
ods)) |
140 | 137 |
141 # If the size of the field is not None, it means it is a bit field | 138 # If the size of the field is not None, it means it is a bit field |
142 self.is_bit_field = self.size is not None | 139 self.is_bit_field = self.size is not None |
143 | 140 |
144 assert len(kwargs) == 0, 'Unexpected arguments provided to Field: ' + st
r(kwargs) | 141 assert len(kwargs) == 0, 'Unexpected arguments provided to Field: ' + st
r(kwargs) |
145 | 142 |
146 | 143 |
147 def _get_include_paths(properties): | 144 def _get_include_paths(properties): |
148 """ | 145 """ |
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217 return Field( | 214 return Field( |
218 field_role, | 215 field_role, |
219 name_for_methods, | 216 name_for_methods, |
220 property_name=property_['name'], | 217 property_name=property_['name'], |
221 inherited=property_['inherited'], | 218 inherited=property_['inherited'], |
222 independent=property_['independent'], | 219 independent=property_['independent'], |
223 type_name=type_name, | 220 type_name=type_name, |
224 field_template=property_['field_template'], | 221 field_template=property_['field_template'], |
225 size=size, | 222 size=size, |
226 default_value=default_value, | 223 default_value=default_value, |
227 properties=property_, | 224 getter_method_name=property_['getter'], |
| 225 setter_method_name=property_['setter'], |
| 226 initial_method_name=property_['initial'], |
228 ) | 227 ) |
229 | 228 |
230 | 229 |
231 def _create_inherited_flag_field(property_): | 230 def _create_inherited_flag_field(property_): |
232 """ | 231 """ |
233 Create the field used for an inheritance fast path from an independent CSS p
roperty, | 232 Create the field used for an inheritance fast path from an independent CSS p
roperty, |
234 and return the Field object. | 233 and return the Field object. |
235 """ | 234 """ |
| 235 name_for_methods = join_name(property_['name_for_methods'], 'is inherited') |
236 return Field( | 236 return Field( |
237 'inherited_flag', | 237 'inherited_flag', |
238 join_name(property_['name_for_methods'], 'is inherited'), | 238 name_for_methods, |
239 property_name=property_['name'], | 239 property_name=property_['name'], |
240 type_name='bool', | 240 type_name='bool', |
241 field_template='primitive', | 241 field_template='primitive', |
242 size=1, | 242 size=1, |
243 default_value='true', | 243 default_value='true', |
244 properties=property_, | 244 getter_method_name=method_name(name_for_methods), |
| 245 setter_method_name=method_name(join_name('set', name_for_methods)), |
| 246 initial_method_name=method_name(join_name('initial', name_for_methods)), |
245 ) | 247 ) |
246 | 248 |
247 | 249 |
248 def _create_fields(field_role, properties): | 250 def _create_fields(field_role, properties): |
249 """ | 251 """ |
250 Create ComputedStyle fields from properties or nonproperties and return a li
st of Field objects. | 252 Create ComputedStyle fields from properties or nonproperties and return a li
st of Field objects. |
251 """ | 253 """ |
252 fields = [] | 254 fields = [] |
253 for property_ in properties: | 255 for property_ in properties: |
254 # Only generate properties that have a field template | 256 # Only generate properties that have a field template |
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307 } | 309 } |
308 | 310 |
309 # TODO(shend): Remove this once we move NONPROPERTIES to its own JSON fi
le, | 311 # TODO(shend): Remove this once we move NONPROPERTIES to its own JSON fi
le, |
310 # since the JSON5 reader will handle missing fields and defaults. | 312 # since the JSON5 reader will handle missing fields and defaults. |
311 for property_ in NONPROPERTIES: | 313 for property_ in NONPROPERTIES: |
312 property_['name_for_methods'] = property_['name'] | 314 property_['name_for_methods'] = property_['name'] |
313 if 'field_type_path' not in property_: | 315 if 'field_type_path' not in property_: |
314 property_['field_type_path'] = None | 316 property_['field_type_path'] = None |
315 if 'type_name' not in property_: | 317 if 'type_name' not in property_: |
316 property_['type_name'] = 'E' + enum_type_name(property_['name_fo
r_methods']) | 318 property_['type_name'] = 'E' + enum_type_name(property_['name_fo
r_methods']) |
| 319 property_['getter'] = method_name(property_['name_for_methods']) |
| 320 property_['setter'] = method_name(join_name('set', property_['name_f
or_methods'])) |
| 321 property_['initial'] = method_name(join_name('initial', property_['n
ame_for_methods'])) |
317 | 322 |
318 property_values = self._properties.values() | 323 property_values = self._properties.values() |
319 | 324 |
320 for property_ in property_values: | 325 for property_ in property_values: |
321 # Override the type name when field_type_path is specified | 326 # Override the type name when field_type_path is specified |
322 if property_['field_type_path']: | 327 if property_['field_type_path']: |
323 property_['type_name'] = property_['field_type_path'].split('/')
[-1] | 328 property_['type_name'] = property_['field_type_path'].split('/')
[-1] |
324 # CSS properties are not allowed to explicitly specify their field_s
ize. | 329 # CSS properties are not allowed to explicitly specify their field_s
ize. |
325 property_['field_size'] = None | 330 property_['field_size'] = None |
326 | 331 |
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404 'mapping': [(enum_value_name(k), enum_for_css_keyword(k)) fo
r k in property_['keywords']], | 409 'mapping': [(enum_value_name(k), enum_for_css_keyword(k)) fo
r k in property_['keywords']], |
405 } | 410 } |
406 | 411 |
407 return { | 412 return { |
408 'include_paths': self._include_paths, | 413 'include_paths': self._include_paths, |
409 'mappings': mappings, | 414 'mappings': mappings, |
410 } | 415 } |
411 | 416 |
412 if __name__ == '__main__': | 417 if __name__ == '__main__': |
413 json5_generator.Maker(ComputedStyleBaseWriter).main() | 418 json5_generator.Maker(ComputedStyleBaseWriter).main() |
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