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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
"""Generating content for autodoc using typehints"""
from __future__ import annotations
import re
from collections.abc import Iterable
from typing import TYPE_CHECKING, Any, cast
from docutils import nodes
import sphinx
from sphinx import addnodes
from sphinx.util import inspect
from sphinx.util.typing import stringify_annotation
if TYPE_CHECKING:
from docutils.nodes import Element
from sphinx.application import Sphinx
def record_typehints(app: Sphinx, objtype: str, name: str, obj: Any,
options: dict, args: str, retann: str) -> None:
"""Record type hints to env object."""
if app.config.autodoc_typehints_format == 'short':
mode = 'smart'
else:
mode = 'fully-qualified'
try:
if callable(obj):
annotations = app.env.temp_data.setdefault('annotations', {})
annotation = annotations.setdefault(name, {})
sig = inspect.signature(obj, type_aliases=app.config.autodoc_type_aliases)
for param in sig.parameters.values():
if param.annotation is not param.empty:
annotation[param.name] = stringify_annotation(param.annotation, mode)
if sig.return_annotation is not sig.empty:
annotation['return'] = stringify_annotation(sig.return_annotation, mode)
except (TypeError, ValueError):
pass
def merge_typehints(app: Sphinx, domain: str, objtype: str, contentnode: Element) -> None:
if domain != 'py':
return
if app.config.autodoc_typehints not in ('both', 'description'):
return
try:
signature = cast(addnodes.desc_signature, contentnode.parent[0])
if signature['module']:
fullname = '.'.join([signature['module'], signature['fullname']])
else:
fullname = signature['fullname']
except KeyError:
# signature node does not have valid context info for the target object
return
annotations = app.env.temp_data.get('annotations', {})
if annotations.get(fullname, {}):
field_lists = [n for n in contentnode if isinstance(n, nodes.field_list)]
if field_lists == []:
field_list = insert_field_list(contentnode)
field_lists.append(field_list)
for field_list in field_lists:
if app.config.autodoc_typehints_description_target == "all":
if objtype == 'class':
modify_field_list(field_list, annotations[fullname], suppress_rtype=True)
else:
modify_field_list(field_list, annotations[fullname])
elif app.config.autodoc_typehints_description_target == "documented_params":
augment_descriptions_with_types(
field_list, annotations[fullname], force_rtype=True,
)
else:
augment_descriptions_with_types(
field_list, annotations[fullname], force_rtype=False,
)
def insert_field_list(node: Element) -> nodes.field_list:
field_list = nodes.field_list()
desc = [n for n in node if isinstance(n, addnodes.desc)]
if desc:
# insert just before sub object descriptions (ex. methods, nested classes, etc.)
index = node.index(desc[0])
node.insert(index - 1, [field_list])
else:
node += field_list
return field_list
def modify_field_list(node: nodes.field_list, annotations: dict[str, str],
suppress_rtype: bool = False) -> None:
arguments: dict[str, dict[str, bool]] = {}
fields = cast(Iterable[nodes.field], node)
for field in fields:
field_name = field[0].astext()
parts = re.split(' +', field_name)
if parts[0] == 'param':
if len(parts) == 2:
# :param xxx:
arg = arguments.setdefault(parts[1], {})
arg['param'] = True
elif len(parts) > 2:
# :param xxx yyy:
name = ' '.join(parts[2:])
arg = arguments.setdefault(name, {})
arg['param'] = True
arg['type'] = True
elif parts[0] == 'type':
name = ' '.join(parts[1:])
arg = arguments.setdefault(name, {})
arg['type'] = True
elif parts[0] == 'rtype':
arguments['return'] = {'type': True}
for name, annotation in annotations.items():
if name == 'return':
continue
if '*' + name in arguments:
name = '*' + name
arguments.get(name)
elif '**' + name in arguments:
name = '**' + name
arguments.get(name)
else:
arg = arguments.get(name, {})
if not arg.get('type'):
field = nodes.field()
field += nodes.field_name('', 'type ' + name)
field += nodes.field_body('', nodes.paragraph('', annotation))
node += field
if not arg.get('param'):
field = nodes.field()
field += nodes.field_name('', 'param ' + name)
field += nodes.field_body('', nodes.paragraph('', ''))
node += field
if 'return' in annotations and 'return' not in arguments:
annotation = annotations['return']
if annotation == 'None' and suppress_rtype:
return
field = nodes.field()
field += nodes.field_name('', 'rtype')
field += nodes.field_body('', nodes.paragraph('', annotation))
node += field
def augment_descriptions_with_types(
node: nodes.field_list,
annotations: dict[str, str],
force_rtype: bool,
) -> None:
fields = cast(Iterable[nodes.field], node)
has_description: set[str] = set()
has_type: set[str] = set()
for field in fields:
field_name = field[0].astext()
parts = re.split(' +', field_name)
if parts[0] == 'param':
if len(parts) == 2:
# :param xxx:
has_description.add(parts[1])
elif len(parts) > 2:
# :param xxx yyy:
name = ' '.join(parts[2:])
has_description.add(name)
has_type.add(name)
elif parts[0] == 'type':
name = ' '.join(parts[1:])
has_type.add(name)
elif parts[0] in ('return', 'returns'):
has_description.add('return')
elif parts[0] == 'rtype':
has_type.add('return')
# Add 'type' for parameters with a description but no declared type.
for name, annotation in annotations.items():
if name in ('return', 'returns'):
continue
if '*' + name in has_description:
name = '*' + name
elif '**' + name in has_description:
name = '**' + name
if name in has_description and name not in has_type:
field = nodes.field()
field += nodes.field_name('', 'type ' + name)
field += nodes.field_body('', nodes.paragraph('', annotation))
node += field
# Add 'rtype' if 'return' is present and 'rtype' isn't.
if 'return' in annotations:
rtype = annotations['return']
if 'return' not in has_type and ('return' in has_description or
(force_rtype and rtype != "None")):
field = nodes.field()
field += nodes.field_name('', 'rtype')
field += nodes.field_body('', nodes.paragraph('', rtype))
node += field
def setup(app: Sphinx) -> dict[str, Any]:
app.connect('autodoc-process-signature', record_typehints)
app.connect('object-description-transform', merge_typehints)
return {
'version': sphinx.__display_version__,
'parallel_read_safe': True,
'parallel_write_safe': True,
}
|