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from __future__ import annotations
from typing import TYPE_CHECKING, Any, Callable
from docutils import nodes
from docutils.statemachine import StringList
from docutils.utils import Reporter, assemble_option_dict
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
if TYPE_CHECKING:
from docutils.nodes import Element, Node
from docutils.parsers.rst.states import RSTState
from sphinx.config import Config
from sphinx.environment import BuildEnvironment
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', 'class-doc-from', 'no-value']
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 | None, options: Options,
lineno: int, state: Any) -> None:
self.env = env
self._reporter = reporter
self.genopt = options
self.lineno = lineno
self.record_dependencies: set[str] = set()
self.result = StringList()
self.state = state
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
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 an item of content generated by Documenter."""
with switch_source_input(state, content):
if documenter.titles_allowed:
node: Element = nodes.section()
# 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 upon running. After the processing, it parses and returns
the content generated 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( # type: ignore[attr-defined]
self.lineno)
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.record_dependencies:
self.state.document.settings.record_dependencies.add(fn)
result = parse_generated_content(self.state, params.result, documenter)
return result
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