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"""
sphinx.ext.autodoc.directive
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import warnings
from typing import Any, Callable, Dict, List, Set, Type
from docutils import nodes
from docutils.nodes import Element, Node
from docutils.parsers.rst.states import RSTState
from docutils.statemachine import StringList
from docutils.utils import Reporter, assemble_option_dict
from sphinx.config import Config
from sphinx.deprecation import RemovedInSphinx50Warning
from sphinx.environment import BuildEnvironment
from sphinx.ext.autodoc import Documenter, Options
from sphinx.util import logging
from sphinx.util.docutils import SphinxDirective, switch_source_input
from sphinx.util.nodes import nested_parse_with_titles
logger = logging.getLogger(__name__)
# common option names for autodoc directives
AUTODOC_DEFAULT_OPTIONS = ['members', 'undoc-members', 'inherited-members',
'show-inheritance', 'private-members', 'special-members',
'ignore-module-all', 'exclude-members', 'member-order',
'imported-members']
AUTODOC_EXTENDABLE_OPTIONS = ['members', 'private-members', 'special-members',
'exclude-members']
class DummyOptionSpec(dict):
"""An option_spec allows any options."""
def __bool__(self) -> bool:
"""Behaves like some options are defined."""
return True
def __getitem__(self, key: str) -> Callable[[str], str]:
return lambda x: x
class DocumenterBridge:
"""A parameters container for Documenters."""
def __init__(self, env: BuildEnvironment, reporter: Reporter, options: Options,
lineno: int, state: Any) -> None:
self.env = env
self._reporter = reporter
self.genopt = options
self.lineno = lineno
self.filename_set = set() # type: Set[str]
self.result = StringList()
self.state = state
def warn(self, msg: str) -> None:
logger.warning(msg, location=(self.env.docname, self.lineno))
@property
def reporter(self) -> Reporter:
warnings.warn('DocumenterBridge.reporter is deprecated.',
RemovedInSphinx50Warning, stacklevel=2)
return self._reporter
def process_documenter_options(documenter: "Type[Documenter]", config: Config, options: Dict
) -> Options:
"""Recognize options of Documenter from user input."""
for name in AUTODOC_DEFAULT_OPTIONS:
if name not in documenter.option_spec:
continue
else:
negated = options.pop('no-' + name, True) is None
if name in config.autodoc_default_options and not negated:
if name in options and isinstance(config.autodoc_default_options[name], str):
# take value from options if present or extend it
# with autodoc_default_options if necessary
if name in AUTODOC_EXTENDABLE_OPTIONS:
if options[name] is not None and options[name].startswith('+'):
options[name] = ','.join([config.autodoc_default_options[name],
options[name][1:]])
else:
options[name] = config.autodoc_default_options[name]
elif options.get(name) is not None:
# remove '+' from option argument if there's nothing to merge it with
options[name] = options[name].lstrip('+')
return Options(assemble_option_dict(options.items(), documenter.option_spec))
def parse_generated_content(state: RSTState, content: StringList, documenter: Documenter
) -> List[Node]:
"""Parse a generated content by Documenter."""
with switch_source_input(state, content):
if documenter.titles_allowed:
node = nodes.section() # type: Element
# necessary so that the child nodes get the right source/line set
node.document = state.document
nested_parse_with_titles(state, content, node)
else:
node = nodes.paragraph()
node.document = state.document
state.nested_parse(content, 0, node)
return node.children
class AutodocDirective(SphinxDirective):
"""A directive class for all autodoc directives. It works as a dispatcher of Documenters.
It invokes a Documenter on running. After the processing, it parses and returns
the generated content by Documenter.
"""
option_spec = DummyOptionSpec()
has_content = True
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = True
def run(self) -> List[Node]:
reporter = self.state.document.reporter
try:
source, lineno = reporter.get_source_and_line(self.lineno) # type: ignore
except AttributeError:
source, lineno = (None, None)
logger.debug('[autodoc] %s:%s: input:\n%s', source, lineno, self.block_text)
# look up target Documenter
objtype = self.name[4:] # strip prefix (auto-).
doccls = self.env.app.registry.documenters[objtype]
# process the options with the selected documenter's option_spec
try:
documenter_options = process_documenter_options(doccls, self.config, self.options)
except (KeyError, ValueError, TypeError) as exc:
# an option is either unknown or has a wrong type
logger.error('An option to %s is either unknown or has an invalid value: %s' %
(self.name, exc), location=(self.env.docname, lineno))
return []
# generate the output
params = DocumenterBridge(self.env, reporter, documenter_options, lineno, self.state)
documenter = doccls(params, self.arguments[0])
documenter.generate(more_content=self.content)
if not params.result:
return []
logger.debug('[autodoc] output:\n%s', '\n'.join(params.result))
# record all filenames as dependencies -- this will at least
# partially make automatic invalidation possible
for fn in params.filename_set:
self.state.document.settings.record_dependencies.add(fn)
result = parse_generated_content(self.state, params.result, documenter)
return result
|
