1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
#!/usr/bin/env python
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import sys
from collections import defaultdict
import hasher
import json5_generator
import name_utilities
import template_expander
def _symbol(tag):
return name_utilities.cpp_name(tag).replace('-', '_')
class MakeElementTypeHelpersWriter(json5_generator.Writer):
default_parameters = {
'Conditional': {},
'ImplementedAs': {},
'JSInterfaceName': {},
'constructorNeedsCreateElementFlags': {},
'interfaceHeaderDir': {},
'interfaceName': {},
'noConstructor': {},
'noTypeHelpers': {},
'runtimeEnabled': {},
}
default_metadata = {
'attrsNullNamespace': None,
'export': '',
'fallbackInterfaceName': '',
'fallbackJSInterfaceName': '',
'namespace': '',
'namespacePrefix': '',
'namespaceURI': '',
}
filters = {
'hash': hasher.hash,
'symbol': _symbol,
}
def __init__(self, json5_file_path):
super(MakeElementTypeHelpersWriter, self).__init__(json5_file_path)
self.namespace = self.json5_file.metadata['namespace'].strip('"')
self.fallback_interface = self.json5_file.metadata['fallbackInterfaceName'].strip('"')
assert self.namespace, 'A namespace is required.'
basename = self.namespace.lower() + '_element_type_helpers'
self._outputs = {
(basename + '.h'): self.generate_helper_header,
(basename + '.cc'): self.generate_helper_implementation,
}
base_element_header = 'core/%s/%s_element.h' % (self.namespace.lower(), self.namespace.lower())
self._template_context = {
'base_element_header': base_element_header,
'input_files': self._input_files,
'namespace': self.namespace,
'tags': self.json5_file.name_dictionaries,
'elements': set(),
}
tags = self._template_context['tags']
elements = self._template_context['elements']
interface_counts = defaultdict(int)
for tag in tags:
tag['interface'] = self._interface(tag)
interface_counts[tag['interface']] += 1
tag['js_interface'] = tag['interface']
if tag['JSInterfaceName']:
tag['js_interface'] = tag['JSInterfaceName']
elements.add(tag['js_interface'])
for tag in tags:
tag['multipleTagNames'] = (interface_counts[tag['interface']] > 1 or tag['interface'] == self.fallback_interface)
@template_expander.use_jinja("templates/element_type_helpers.h.tmpl", filters=filters)
def generate_helper_header(self):
return self._template_context
@template_expander.use_jinja("templates/element_type_helpers.cc.tmpl", filters=filters)
def generate_helper_implementation(self):
return self._template_context
def _interface(self, tag):
if tag['interfaceName']:
return tag['interfaceName']
name = name_utilities.upper_first(tag['name'])
# FIXME: We shouldn't hard-code HTML here.
if name == 'HTML':
name = 'Html'
dash = name.find('-')
while dash != -1:
name = name[:dash] + name[dash + 1].upper() + name[dash + 2:]
dash = name.find('-')
return '%s%sElement' % (self.namespace, name)
if __name__ == "__main__":
json5_generator.Maker(MakeElementTypeHelpersWriter).main()
|
