chromium/src/third_party/blink/renderer/build/scripts/make_style_builder.py

#!/usr/bin/env python
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import sys
import types

from core.css import css_properties
import json5_generator


def calculate_apply_functions_to_declare(property_):
    property_['should_declare_functions'] = \
        not property_['longhands'] \
        and property_['is_property']
    property_['use_property_class_in_stylebuilder'] = \
        property_['should_declare_functions']


class StyleBuilderWriter(json5_generator.Writer):
    def __init__(self, json5_file_paths, output_dir):
        super(StyleBuilderWriter, self).__init__([], output_dir)

        self._json5_properties = css_properties.CSSProperties(json5_file_paths)
        self._input_files = json5_file_paths
        self._properties = self._json5_properties.longhands + \
            self._json5_properties.shorthands
        for property_ in self._properties:
            calculate_apply_functions_to_declare(property_)

    @property
    def css_properties(self):
        return self._json5_properties


if __name__ == '__main__':
    json5_generator.Maker(StyleBuilderWriter).main()