sphinx/sphinx/domains/python.py
2019-05-29 00:51:25 +09:00

1126 lines
41 KiB
Python

"""
sphinx.domains.python
~~~~~~~~~~~~~~~~~~~~~
The Python domain.
:copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
import warnings
from typing import cast
from docutils import nodes
from docutils.parsers.rst import directives
from sphinx import addnodes
from sphinx.deprecation import RemovedInSphinx40Warning
from sphinx.directives import ObjectDescription
from sphinx.domains import Domain, ObjType, Index, IndexEntry
from sphinx.locale import _, __
from sphinx.roles import XRefRole
from sphinx.util import logging
from sphinx.util.docfields import Field, GroupedField, TypedField
from sphinx.util.docutils import SphinxDirective
from sphinx.util.nodes import make_refnode
if False:
# For type annotation
from typing import Any, Dict, Iterable, Iterator, List, Tuple, Type # NOQA
from sphinx.application import Sphinx # NOQA
from sphinx.builders import Builder # NOQA
from sphinx.environment import BuildEnvironment # NOQA
from sphinx.util.typing import TextlikeNode # NOQA
logger = logging.getLogger(__name__)
# REs for Python signatures
py_sig_re = re.compile(
r'''^ ([\w.]*\.)? # class name(s)
(\w+) \s* # thing name
(?: \(\s*(.*)\s*\) # optional: arguments
(?:\s* -> \s* (.*))? # return annotation
)? $ # and nothing more
''', re.VERBOSE)
pairindextypes = {
'module': _('module'),
'keyword': _('keyword'),
'operator': _('operator'),
'object': _('object'),
'exception': _('exception'),
'statement': _('statement'),
'builtin': _('built-in function'),
}
def _pseudo_parse_arglist(signode, arglist):
# type: (addnodes.desc_signature, str) -> None
""""Parse" a list of arguments separated by commas.
Arguments can have "optional" annotations given by enclosing them in
brackets. Currently, this will split at any comma, even if it's inside a
string literal (e.g. default argument value).
"""
paramlist = addnodes.desc_parameterlist()
stack = [paramlist] # type: List[nodes.Element]
try:
for argument in arglist.split(','):
argument = argument.strip()
ends_open = ends_close = 0
while argument.startswith('['):
stack.append(addnodes.desc_optional())
stack[-2] += stack[-1]
argument = argument[1:].strip()
while argument.startswith(']'):
stack.pop()
argument = argument[1:].strip()
while argument.endswith(']') and not argument.endswith('[]'):
ends_close += 1
argument = argument[:-1].strip()
while argument.endswith('['):
ends_open += 1
argument = argument[:-1].strip()
if argument:
stack[-1] += addnodes.desc_parameter(argument, argument)
while ends_open:
stack.append(addnodes.desc_optional())
stack[-2] += stack[-1]
ends_open -= 1
while ends_close:
stack.pop()
ends_close -= 1
if len(stack) != 1:
raise IndexError
except IndexError:
# if there are too few or too many elements on the stack, just give up
# and treat the whole argument list as one argument, discarding the
# already partially populated paramlist node
paramlist = addnodes.desc_parameterlist()
paramlist += addnodes.desc_parameter(arglist, arglist)
signode += paramlist
else:
signode += paramlist
# This override allows our inline type specifiers to behave like :class: link
# when it comes to handling "." and "~" prefixes.
class PyXrefMixin:
def make_xref(self,
rolename, # type: str
domain, # type: str
target, # type: str
innernode=nodes.emphasis, # type: Type[TextlikeNode]
contnode=None, # type: nodes.Node
env=None, # type: BuildEnvironment
):
# type: (...) -> nodes.Node
result = super().make_xref(rolename, domain, target, # type: ignore
innernode, contnode, env)
result['refspecific'] = True
if target.startswith(('.', '~')):
prefix, result['reftarget'] = target[0], target[1:]
if prefix == '.':
text = target[1:]
elif prefix == '~':
text = target.split('.')[-1]
for node in result.traverse(nodes.Text):
node.parent[node.parent.index(node)] = nodes.Text(text)
break
return result
def make_xrefs(self,
rolename, # type: str
domain, # type: str
target, # type: str
innernode=nodes.emphasis, # type: Type[TextlikeNode]
contnode=None, # type: nodes.Node
env=None, # type: BuildEnvironment
):
# type: (...) -> List[nodes.Node]
delims = r'(\s*[\[\]\(\),](?:\s*or\s)?\s*|\s+or\s+)'
delims_re = re.compile(delims)
sub_targets = re.split(delims, target)
split_contnode = bool(contnode and contnode.astext() == target)
results = []
for sub_target in filter(None, sub_targets):
if split_contnode:
contnode = nodes.Text(sub_target)
if delims_re.match(sub_target):
results.append(contnode or innernode(sub_target, sub_target))
else:
results.append(self.make_xref(rolename, domain, sub_target,
innernode, contnode, env))
return results
class PyField(PyXrefMixin, Field):
def make_xref(self, rolename, domain, target,
innernode=nodes.emphasis, contnode=None, env=None):
# type: (str, str, str, Type[TextlikeNode], nodes.Node, BuildEnvironment) -> nodes.Node # NOQA
if rolename == 'class' and target == 'None':
# None is not a type, so use obj role instead.
rolename = 'obj'
return super().make_xref(rolename, domain, target, innernode, contnode, env)
class PyGroupedField(PyXrefMixin, GroupedField):
pass
class PyTypedField(PyXrefMixin, TypedField):
def make_xref(self, rolename, domain, target,
innernode=nodes.emphasis, contnode=None, env=None):
# type: (str, str, str, Type[TextlikeNode], nodes.Node, BuildEnvironment) -> nodes.Node # NOQA
if rolename == 'class' and target == 'None':
# None is not a type, so use obj role instead.
rolename = 'obj'
return super().make_xref(rolename, domain, target, innernode, contnode, env)
class PyObject(ObjectDescription):
"""
Description of a general Python object.
:cvar allow_nesting: Class is an object that allows for nested namespaces
:vartype allow_nesting: bool
"""
option_spec = {
'noindex': directives.flag,
'module': directives.unchanged,
'annotation': directives.unchanged,
}
doc_field_types = [
PyTypedField('parameter', label=_('Parameters'),
names=('param', 'parameter', 'arg', 'argument',
'keyword', 'kwarg', 'kwparam'),
typerolename='class', typenames=('paramtype', 'type'),
can_collapse=True),
PyTypedField('variable', label=_('Variables'), rolename='obj',
names=('var', 'ivar', 'cvar'),
typerolename='class', typenames=('vartype',),
can_collapse=True),
PyGroupedField('exceptions', label=_('Raises'), rolename='exc',
names=('raises', 'raise', 'exception', 'except'),
can_collapse=True),
Field('returnvalue', label=_('Returns'), has_arg=False,
names=('returns', 'return')),
PyField('returntype', label=_('Return type'), has_arg=False,
names=('rtype',), bodyrolename='class'),
]
allow_nesting = False
def get_signature_prefix(self, sig):
# type: (str) -> str
"""May return a prefix to put before the object name in the
signature.
"""
return ''
def needs_arglist(self):
# type: () -> bool
"""May return true if an empty argument list is to be generated even if
the document contains none.
"""
return False
def handle_signature(self, sig, signode):
# type: (str, addnodes.desc_signature) -> Tuple[str, str]
"""Transform a Python signature into RST nodes.
Return (fully qualified name of the thing, classname if any).
If inside a class, the current class name is handled intelligently:
* it is stripped from the displayed name if present
* it is added to the full name (return value) if not present
"""
m = py_sig_re.match(sig)
if m is None:
raise ValueError
prefix, name, arglist, retann = m.groups()
# determine module and class name (if applicable), as well as full name
modname = self.options.get('module', self.env.ref_context.get('py:module'))
classname = self.env.ref_context.get('py:class')
if classname:
add_module = False
if prefix and (prefix == classname or
prefix.startswith(classname + ".")):
fullname = prefix + name
# class name is given again in the signature
prefix = prefix[len(classname):].lstrip('.')
elif prefix:
# class name is given in the signature, but different
# (shouldn't happen)
fullname = classname + '.' + prefix + name
else:
# class name is not given in the signature
fullname = classname + '.' + name
else:
add_module = True
if prefix:
classname = prefix.rstrip('.')
fullname = prefix + name
else:
classname = ''
fullname = name
signode['module'] = modname
signode['class'] = classname
signode['fullname'] = fullname
sig_prefix = self.get_signature_prefix(sig)
if sig_prefix:
signode += addnodes.desc_annotation(sig_prefix, sig_prefix)
if prefix:
signode += addnodes.desc_addname(prefix, prefix)
elif add_module and self.env.config.add_module_names:
if modname and modname != 'exceptions':
# exceptions are a special case, since they are documented in the
# 'exceptions' module.
nodetext = modname + '.'
signode += addnodes.desc_addname(nodetext, nodetext)
signode += addnodes.desc_name(name, name)
if arglist:
_pseudo_parse_arglist(signode, arglist)
else:
if self.needs_arglist():
# for callables, add an empty parameter list
signode += addnodes.desc_parameterlist()
if retann:
signode += addnodes.desc_returns(retann, retann)
anno = self.options.get('annotation')
if anno:
signode += addnodes.desc_annotation(' ' + anno, ' ' + anno)
return fullname, prefix
def get_index_text(self, modname, name):
# type: (str, Tuple[str, str]) -> str
"""Return the text for the index entry of the object."""
raise NotImplementedError('must be implemented in subclasses')
def add_target_and_index(self, name_cls, sig, signode):
# type: (Tuple[str, str], str, addnodes.desc_signature) -> None
modname = self.options.get('module', self.env.ref_context.get('py:module'))
fullname = (modname and modname + '.' or '') + name_cls[0]
# note target
if fullname not in self.state.document.ids:
signode['names'].append(fullname)
signode['ids'].append(fullname)
signode['first'] = (not self.names)
self.state.document.note_explicit_target(signode)
domain = cast(PythonDomain, self.env.get_domain('py'))
domain.note_object(fullname, self.objtype)
indextext = self.get_index_text(modname, name_cls)
if indextext:
self.indexnode['entries'].append(('single', indextext,
fullname, '', None))
def before_content(self):
# type: () -> None
"""Handle object nesting before content
:py:class:`PyObject` represents Python language constructs. For
constructs that are nestable, such as a Python classes, this method will
build up a stack of the nesting heirarchy so that it can be later
de-nested correctly, in :py:meth:`after_content`.
For constructs that aren't nestable, the stack is bypassed, and instead
only the most recent object is tracked. This object prefix name will be
removed with :py:meth:`after_content`.
"""
prefix = None
if self.names:
# fullname and name_prefix come from the `handle_signature` method.
# fullname represents the full object name that is constructed using
# object nesting and explicit prefixes. `name_prefix` is the
# explicit prefix given in a signature
(fullname, name_prefix) = self.names[-1]
if self.allow_nesting:
prefix = fullname
elif name_prefix:
prefix = name_prefix.strip('.')
if prefix:
self.env.ref_context['py:class'] = prefix
if self.allow_nesting:
classes = self.env.ref_context.setdefault('py:classes', [])
classes.append(prefix)
if 'module' in self.options:
modules = self.env.ref_context.setdefault('py:modules', [])
modules.append(self.env.ref_context.get('py:module'))
self.env.ref_context['py:module'] = self.options['module']
def after_content(self):
# type: () -> None
"""Handle object de-nesting after content
If this class is a nestable object, removing the last nested class prefix
ends further nesting in the object.
If this class is not a nestable object, the list of classes should not
be altered as we didn't affect the nesting levels in
:py:meth:`before_content`.
"""
classes = self.env.ref_context.setdefault('py:classes', [])
if self.allow_nesting:
try:
classes.pop()
except IndexError:
pass
self.env.ref_context['py:class'] = (classes[-1] if len(classes) > 0
else None)
if 'module' in self.options:
modules = self.env.ref_context.setdefault('py:modules', [])
if modules:
self.env.ref_context['py:module'] = modules.pop()
else:
self.env.ref_context.pop('py:module')
class PyModulelevel(PyObject):
"""
Description of an object on module level (functions, data).
"""
def run(self):
# type: () -> List[nodes.Node]
warnings.warn('PyClassmember is deprecated.',
RemovedInSphinx40Warning)
return super().run()
def needs_arglist(self):
# type: () -> bool
return self.objtype == 'function'
def get_index_text(self, modname, name_cls):
# type: (str, Tuple[str, str]) -> str
if self.objtype == 'function':
if not modname:
return _('%s() (built-in function)') % name_cls[0]
return _('%s() (in module %s)') % (name_cls[0], modname)
elif self.objtype == 'data':
if not modname:
return _('%s (built-in variable)') % name_cls[0]
return _('%s (in module %s)') % (name_cls[0], modname)
else:
return ''
class PyFunction(PyObject):
"""Description of a function."""
option_spec = PyObject.option_spec.copy()
option_spec.update({
'async': directives.flag,
})
def get_signature_prefix(self, sig):
# type: (str) -> str
if 'async' in self.options:
return 'async '
else:
return ''
def needs_arglist(self):
# type: () -> bool
return True
def get_index_text(self, modname, name_cls):
# type: (str, Tuple[str, str]) -> str
name, cls = name_cls
if modname:
return _('%s() (in module %s)') % (name, modname)
else:
return _('%s() (built-in function)') % name
class PyVariable(PyObject):
"""Description of a variable."""
def get_index_text(self, modname, name_cls):
# type: (str, Tuple[str, str]) -> str
name, cls = name_cls
if modname:
return _('%s (in module %s)') % (name, modname)
else:
return _('%s (built-in variable)') % name
class PyClasslike(PyObject):
"""
Description of a class-like object (classes, interfaces, exceptions).
"""
allow_nesting = True
def get_signature_prefix(self, sig):
# type: (str) -> str
return self.objtype + ' '
def get_index_text(self, modname, name_cls):
# type: (str, Tuple[str, str]) -> str
if self.objtype == 'class':
if not modname:
return _('%s (built-in class)') % name_cls[0]
return _('%s (class in %s)') % (name_cls[0], modname)
elif self.objtype == 'exception':
return name_cls[0]
else:
return ''
class PyClassmember(PyObject):
"""
Description of a class member (methods, attributes).
"""
def run(self):
# type: () -> List[nodes.Node]
warnings.warn('PyClassmember is deprecated.',
RemovedInSphinx40Warning)
return super().run()
def needs_arglist(self):
# type: () -> bool
return self.objtype.endswith('method')
def get_signature_prefix(self, sig):
# type: (str) -> str
if self.objtype == 'staticmethod':
return 'static '
elif self.objtype == 'classmethod':
return 'classmethod '
return ''
def get_index_text(self, modname, name_cls):
# type: (str, Tuple[str, str]) -> str
name, cls = name_cls
add_modules = self.env.config.add_module_names
if self.objtype == 'method':
try:
clsname, methname = name.rsplit('.', 1)
except ValueError:
if modname:
return _('%s() (in module %s)') % (name, modname)
else:
return '%s()' % name
if modname and add_modules:
return _('%s() (%s.%s method)') % (methname, modname, clsname)
else:
return _('%s() (%s method)') % (methname, clsname)
elif self.objtype == 'staticmethod':
try:
clsname, methname = name.rsplit('.', 1)
except ValueError:
if modname:
return _('%s() (in module %s)') % (name, modname)
else:
return '%s()' % name
if modname and add_modules:
return _('%s() (%s.%s static method)') % (methname, modname,
clsname)
else:
return _('%s() (%s static method)') % (methname, clsname)
elif self.objtype == 'classmethod':
try:
clsname, methname = name.rsplit('.', 1)
except ValueError:
if modname:
return _('%s() (in module %s)') % (name, modname)
else:
return '%s()' % name
if modname:
return _('%s() (%s.%s class method)') % (methname, modname,
clsname)
else:
return _('%s() (%s class method)') % (methname, clsname)
elif self.objtype == 'attribute':
try:
clsname, attrname = name.rsplit('.', 1)
except ValueError:
if modname:
return _('%s (in module %s)') % (name, modname)
else:
return name
if modname and add_modules:
return _('%s (%s.%s attribute)') % (attrname, modname, clsname)
else:
return _('%s (%s attribute)') % (attrname, clsname)
else:
return ''
class PyMethod(PyObject):
"""Description of a method."""
option_spec = PyObject.option_spec.copy()
option_spec.update({
'abstractmethod': directives.flag,
'async': directives.flag,
'classmethod': directives.flag,
'property': directives.flag,
'staticmethod': directives.flag,
})
def needs_arglist(self):
# type: () -> bool
if 'property' in self.options:
return False
else:
return True
def get_signature_prefix(self, sig):
# type: (str) -> str
prefix = []
if 'abstractmethod' in self.options:
prefix.append('abstract')
if 'async' in self.options:
prefix.append('async')
if 'classmethod' in self.options:
prefix.append('classmethod')
if 'property' in self.options:
prefix.append('property')
if 'staticmethod' in self.options:
prefix.append('static')
if prefix:
return ' '.join(prefix) + ' '
else:
return ''
def get_index_text(self, modname, name_cls):
# type: (str, Tuple[str, str]) -> str
name, cls = name_cls
try:
clsname, methname = name.rsplit('.', 1)
if modname and self.env.config.add_module_names:
clsname = '.'.join([modname, clsname])
except ValueError:
if modname:
return _('%s() (in module %s)') % (name, modname)
else:
return '%s()' % name
if 'classmethod' in self.options:
return _('%s() (%s class method)') % (methname, clsname)
elif 'property' in self.options:
return _('%s() (%s property)') % (methname, clsname)
elif 'staticmethod' in self.options:
return _('%s() (%s static method)') % (methname, clsname)
else:
return _('%s() (%s method)') % (methname, clsname)
class PyClassMethod(PyMethod):
"""Description of a classmethod."""
option_spec = PyObject.option_spec.copy()
def run(self):
# type: () -> List[nodes.Node]
self.name = 'py:method'
self.options['classmethod'] = True
return super().run()
class PyStaticMethod(PyMethod):
"""Description of a staticmethod."""
option_spec = PyObject.option_spec.copy()
def run(self):
# type: () -> List[nodes.Node]
self.name = 'py:method'
self.options['staticmethod'] = True
return super().run()
class PyAttribute(PyObject):
"""Description of an attribute."""
def get_index_text(self, modname, name_cls):
# type: (str, Tuple[str, str]) -> str
name, cls = name_cls
try:
clsname, attrname = name.rsplit('.', 1)
if modname and self.env.config.add_module_names:
clsname = '.'.join([modname, clsname])
except ValueError:
if modname:
return _('%s (in module %s)') % (name, modname)
else:
return name
return _('%s (%s attribute)') % (attrname, clsname)
class PyDecoratorMixin:
"""
Mixin for decorator directives.
"""
def handle_signature(self, sig, signode):
# type: (str, addnodes.desc_signature) -> Tuple[str, str]
ret = super().handle_signature(sig, signode) # type: ignore
signode.insert(0, addnodes.desc_addname('@', '@'))
return ret
def needs_arglist(self):
# type: () -> bool
return False
class PyDecoratorFunction(PyDecoratorMixin, PyModulelevel):
"""
Directive to mark functions meant to be used as decorators.
"""
def run(self):
# type: () -> List[nodes.Node]
# a decorator function is a function after all
self.name = 'py:function'
return super().run()
class PyDecoratorMethod(PyDecoratorMixin, PyClassmember):
"""
Directive to mark methods meant to be used as decorators.
"""
def run(self):
# type: () -> List[nodes.Node]
self.name = 'py:method'
return super().run()
class PyModule(SphinxDirective):
"""
Directive to mark description of a new module.
"""
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = False
option_spec = {
'platform': lambda x: x,
'synopsis': lambda x: x,
'noindex': directives.flag,
'deprecated': directives.flag,
}
def run(self):
# type: () -> List[nodes.Node]
domain = cast(PythonDomain, self.env.get_domain('py'))
modname = self.arguments[0].strip()
noindex = 'noindex' in self.options
self.env.ref_context['py:module'] = modname
ret = [] # type: List[nodes.Node]
if not noindex:
# note module to the domain
domain.note_module(modname,
self.options.get('synopsis', ''),
self.options.get('platform', ''),
'deprecated' in self.options)
domain.note_object(modname, 'module')
targetnode = nodes.target('', '', ids=['module-' + modname],
ismod=True)
self.state.document.note_explicit_target(targetnode)
# the platform and synopsis aren't printed; in fact, they are only
# used in the modindex currently
ret.append(targetnode)
indextext = _('%s (module)') % modname
inode = addnodes.index(entries=[('single', indextext,
'module-' + modname, '', None)])
ret.append(inode)
return ret
class PyCurrentModule(SphinxDirective):
"""
This directive is just to tell Sphinx that we're documenting
stuff in module foo, but links to module foo won't lead here.
"""
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = False
option_spec = {} # type: Dict
def run(self):
# type: () -> List[nodes.Node]
modname = self.arguments[0].strip()
if modname == 'None':
self.env.ref_context.pop('py:module', None)
else:
self.env.ref_context['py:module'] = modname
return []
class PyXRefRole(XRefRole):
def process_link(self, env, refnode, has_explicit_title, title, target):
# type: (BuildEnvironment, nodes.Element, bool, str, str) -> Tuple[str, str]
refnode['py:module'] = env.ref_context.get('py:module')
refnode['py:class'] = env.ref_context.get('py:class')
if not has_explicit_title:
title = title.lstrip('.') # only has a meaning for the target
target = target.lstrip('~') # only has a meaning for the title
# if the first character is a tilde, don't display the module/class
# parts of the contents
if title[0:1] == '~':
title = title[1:]
dot = title.rfind('.')
if dot != -1:
title = title[dot + 1:]
# if the first character is a dot, search more specific namespaces first
# else search builtins first
if target[0:1] == '.':
target = target[1:]
refnode['refspecific'] = True
return title, target
class PythonModuleIndex(Index):
"""
Index subclass to provide the Python module index.
"""
name = 'modindex'
localname = _('Python Module Index')
shortname = _('modules')
def generate(self, docnames=None):
# type: (Iterable[str]) -> Tuple[List[Tuple[str, List[IndexEntry]]], bool]
content = {} # type: Dict[str, List[IndexEntry]]
# list of prefixes to ignore
ignores = None # type: List[str]
ignores = self.domain.env.config['modindex_common_prefix'] # type: ignore
ignores = sorted(ignores, key=len, reverse=True)
# list of all modules, sorted by module name
modules = sorted(self.domain.data['modules'].items(),
key=lambda x: x[0].lower())
# sort out collapsable modules
prev_modname = ''
num_toplevels = 0
for modname, (docname, synopsis, platforms, deprecated) in modules:
if docnames and docname not in docnames:
continue
for ignore in ignores:
if modname.startswith(ignore):
modname = modname[len(ignore):]
stripped = ignore
break
else:
stripped = ''
# we stripped the whole module name?
if not modname:
modname, stripped = stripped, ''
entries = content.setdefault(modname[0].lower(), [])
package = modname.split('.')[0]
if package != modname:
# it's a submodule
if prev_modname == package:
# first submodule - make parent a group head
if entries:
last = entries[-1]
entries[-1] = IndexEntry(last[0], 1, last[2], last[3],
last[4], last[5], last[6])
elif not prev_modname.startswith(package):
# submodule without parent in list, add dummy entry
entries.append(IndexEntry(stripped + package, 1, '', '', '', '', ''))
subtype = 2
else:
num_toplevels += 1
subtype = 0
qualifier = deprecated and _('Deprecated') or ''
entries.append(IndexEntry(stripped + modname, subtype, docname,
'module-' + stripped + modname, platforms,
qualifier, synopsis))
prev_modname = modname
# apply heuristics when to collapse modindex at page load:
# only collapse if number of toplevel modules is larger than
# number of submodules
collapse = len(modules) - num_toplevels < num_toplevels
# sort by first letter
sorted_content = sorted(content.items())
return sorted_content, collapse
class PythonDomain(Domain):
"""Python language domain."""
name = 'py'
label = 'Python'
object_types = {
'function': ObjType(_('function'), 'func', 'obj'),
'data': ObjType(_('data'), 'data', 'obj'),
'class': ObjType(_('class'), 'class', 'exc', 'obj'),
'exception': ObjType(_('exception'), 'exc', 'class', 'obj'),
'method': ObjType(_('method'), 'meth', 'obj'),
'classmethod': ObjType(_('class method'), 'meth', 'obj'),
'staticmethod': ObjType(_('static method'), 'meth', 'obj'),
'attribute': ObjType(_('attribute'), 'attr', 'obj'),
'module': ObjType(_('module'), 'mod', 'obj'),
} # type: Dict[str, ObjType]
directives = {
'function': PyFunction,
'data': PyVariable,
'class': PyClasslike,
'exception': PyClasslike,
'method': PyMethod,
'classmethod': PyClassMethod,
'staticmethod': PyStaticMethod,
'attribute': PyAttribute,
'module': PyModule,
'currentmodule': PyCurrentModule,
'decorator': PyDecoratorFunction,
'decoratormethod': PyDecoratorMethod,
}
roles = {
'data': PyXRefRole(),
'exc': PyXRefRole(),
'func': PyXRefRole(fix_parens=True),
'class': PyXRefRole(),
'const': PyXRefRole(),
'attr': PyXRefRole(),
'meth': PyXRefRole(fix_parens=True),
'mod': PyXRefRole(),
'obj': PyXRefRole(),
}
initial_data = {
'objects': {}, # fullname -> docname, objtype
'modules': {}, # modname -> docname, synopsis, platform, deprecated
} # type: Dict[str, Dict[str, Tuple[Any]]]
indices = [
PythonModuleIndex,
]
@property
def objects(self):
# type: () -> Dict[str, Tuple[str, str]]
return self.data.setdefault('objects', {}) # fullname -> docname, objtype
def note_object(self, name, objtype, location=None):
# type: (str, str, Any) -> None
"""Note a python object for cross reference.
.. versionadded:: 2.1
"""
if name in self.objects:
docname = self.objects[name][0]
logger.warning(__('duplicate object description of %s, '
'other instance in %s, use :noindex: for one of them'),
name, docname, location=location)
self.objects[name] = (self.env.docname, objtype)
@property
def modules(self):
# type: () -> Dict[str, Tuple[str, str, str, bool]]
return self.data.setdefault('modules', {}) # modname -> docname, synopsis, platform, deprecated # NOQA
def note_module(self, name, synopsis, platform, deprecated):
# type: (str, str, str, bool) -> None
"""Note a python module for cross reference.
.. versionadded:: 2.1
"""
self.modules[name] = (self.env.docname, synopsis, platform, deprecated)
def clear_doc(self, docname):
# type: (str) -> None
for fullname, (fn, _l) in list(self.objects.items()):
if fn == docname:
del self.objects[fullname]
for modname, (fn, _x, _x, _y) in list(self.modules.items()):
if fn == docname:
del self.modules[modname]
def merge_domaindata(self, docnames, otherdata):
# type: (List[str], Dict) -> None
# XXX check duplicates?
for fullname, (fn, objtype) in otherdata['objects'].items():
if fn in docnames:
self.objects[fullname] = (fn, objtype)
for modname, data in otherdata['modules'].items():
if data[0] in docnames:
self.modules[modname] = data
def find_obj(self, env, modname, classname, name, type, searchmode=0):
# type: (BuildEnvironment, str, str, str, str, int) -> List[Tuple[str, Any]]
"""Find a Python object for "name", perhaps using the given module
and/or classname. Returns a list of (name, object entry) tuples.
"""
# skip parens
if name[-2:] == '()':
name = name[:-2]
if not name:
return []
matches = [] # type: List[Tuple[str, Any]]
newname = None
if searchmode == 1:
if type is None:
objtypes = list(self.object_types)
else:
objtypes = self.objtypes_for_role(type)
if objtypes is not None:
if modname and classname:
fullname = modname + '.' + classname + '.' + name
if fullname in self.objects and self.objects[fullname][1] in objtypes:
newname = fullname
if not newname:
if modname and modname + '.' + name in self.objects and \
self.objects[modname + '.' + name][1] in objtypes:
newname = modname + '.' + name
elif name in self.objects and self.objects[name][1] in objtypes:
newname = name
else:
# "fuzzy" searching mode
searchname = '.' + name
matches = [(oname, self.objects[oname]) for oname in self.objects
if oname.endswith(searchname) and
self.objects[oname][1] in objtypes]
else:
# NOTE: searching for exact match, object type is not considered
if name in self.objects:
newname = name
elif type == 'mod':
# only exact matches allowed for modules
return []
elif classname and classname + '.' + name in self.objects:
newname = classname + '.' + name
elif modname and modname + '.' + name in self.objects:
newname = modname + '.' + name
elif modname and classname and \
modname + '.' + classname + '.' + name in self.objects:
newname = modname + '.' + classname + '.' + name
# special case: builtin exceptions have module "exceptions" set
elif type == 'exc' and '.' not in name and \
'exceptions.' + name in self.objects:
newname = 'exceptions.' + name
# special case: object methods
elif type in ('func', 'meth') and '.' not in name and \
'object.' + name in self.objects:
newname = 'object.' + name
if newname is not None:
matches.append((newname, self.objects[newname]))
return matches
def resolve_xref(self, env, fromdocname, builder,
type, target, node, contnode):
# type: (BuildEnvironment, str, Builder, str, str, addnodes.pending_xref, nodes.Element) -> nodes.Element # NOQA
modname = node.get('py:module')
clsname = node.get('py:class')
searchmode = node.hasattr('refspecific') and 1 or 0
matches = self.find_obj(env, modname, clsname, target,
type, searchmode)
if not matches:
return None
elif len(matches) > 1:
logger.warning(__('more than one target found for cross-reference %r: %s'),
target, ', '.join(match[0] for match in matches),
type='ref', subtype='python', location=node)
name, obj = matches[0]
if obj[1] == 'module':
return self._make_module_refnode(builder, fromdocname, name, contnode)
else:
return make_refnode(builder, fromdocname, obj[0], name, contnode, name)
def resolve_any_xref(self, env, fromdocname, builder, target,
node, contnode):
# type: (BuildEnvironment, str, Builder, str, addnodes.pending_xref, nodes.Element) -> List[Tuple[str, nodes.Element]] # NOQA
modname = node.get('py:module')
clsname = node.get('py:class')
results = [] # type: List[Tuple[str, nodes.Element]]
# always search in "refspecific" mode with the :any: role
matches = self.find_obj(env, modname, clsname, target, None, 1)
for name, obj in matches:
if obj[1] == 'module':
results.append(('py:mod',
self._make_module_refnode(builder, fromdocname,
name, contnode)))
else:
results.append(('py:' + self.role_for_objtype(obj[1]),
make_refnode(builder, fromdocname, obj[0], name,
contnode, name)))
return results
def _make_module_refnode(self, builder, fromdocname, name, contnode):
# type: (Builder, str, str, nodes.Node) -> nodes.Element
# get additional info for modules
docname, synopsis, platform, deprecated = self.modules[name]
title = name
if synopsis:
title += ': ' + synopsis
if deprecated:
title += _(' (deprecated)')
if platform:
title += ' (' + platform + ')'
return make_refnode(builder, fromdocname, docname,
'module-' + name, contnode, title)
def get_objects(self):
# type: () -> Iterator[Tuple[str, str, str, str, str, int]]
for modname, info in self.modules.items():
yield (modname, modname, 'module', info[0], 'module-' + modname, 0)
for refname, (docname, type) in self.objects.items():
if type != 'module': # modules are already handled
yield (refname, refname, type, docname, refname, 1)
def get_full_qualified_name(self, node):
# type: (nodes.Element) -> str
modname = node.get('py:module')
clsname = node.get('py:class')
target = node.get('reftarget')
if target is None:
return None
else:
return '.'.join(filter(None, [modname, clsname, target]))
def setup(app):
# type: (Sphinx) -> Dict[str, Any]
app.add_domain(PythonDomain)
return {
'version': 'builtin',
'env_version': 1,
'parallel_read_safe': True,
'parallel_write_safe': True,
}