third_party/WebKit/Source/build/scripts/make_element_lookup_trie.py

#!/usr/bin/env python
# Copyright (C) 2013 Google Inc. All rights reserved.
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import sys

import in_generator
import trie_builder
import template_expander


class ElementLookupTrieWriter(in_generator.Writer):
    # FIXME: Inherit all these from somewhere.
    defaults = {
        'JSInterfaceName': None,
        'constructorNeedsCreatedByParser': None,
        'interfaceName': None,
        'noConstructor': None,
        'runtimeEnabled': None,
    }
    default_parameters = {
        'attrsNullNamespace': None,
        'export': '',
        'fallbackInterfaceName': '',
        'fallbackJSInterfaceName': '',
        'namespace': '',
        'namespacePrefix': '',
        'namespaceURI': '',
    }

    def __init__(self, in_file_paths):
        super(ElementLookupTrieWriter, self).__init__(in_file_paths)
        self._tags = {}
        for entry in self.in_file.name_dictionaries:
            self._tags[entry['name']] = entry['name']
        self._namespace = self.in_file.parameters['namespace'].strip('"')
        self._outputs = {
            (self._namespace + 'ElementLookupTrie.h'): self.generate_header,
            (self._namespace + 'ElementLookupTrie.cpp'): self.generate_implementation,
        }

    @template_expander.use_jinja('ElementLookupTrie.h.tmpl')
    def generate_header(self):
        return {
            'namespace': self._namespace,
        }

    @template_expander.use_jinja('ElementLookupTrie.cpp.tmpl')
    def generate_implementation(self):
        return {
            'namespace': self._namespace,
            'length_tries': trie_builder.trie_list_by_str_length(self._tags)
        }


if __name__ == '__main__':
    in_generator.Maker(ElementLookupTrieWriter).main(sys.argv)