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cmake.py
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cmake.py
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# Sphinx Domain for CMake
# Based on the builtin RST Domain in Sphinx
# Pass -vv to sphinx-build to get it to log the directives it's getting.
from __future__ import annotations
import sys
import re
from typing import Any, Iterator, cast
from docutils.nodes import Element
from docutils.parsers.rst import directives
from sphinx import addnodes
from sphinx.addnodes import desc_signature, pending_xref
from sphinx.application import Sphinx
from sphinx.builders import Builder
from sphinx.directives import ObjectDescription
from sphinx.domains import Domain, ObjType
from sphinx.environment import BuildEnvironment
from sphinx.locale import _, __
from sphinx.roles import XRefRole
from sphinx.util import logging
from sphinx.util.nodes import make_id, make_refnode
from sphinx.util.typing import OptionSpec
logger = logging.getLogger(__name__)
class CMakeMarkup(ObjectDescription[str]):
option_spec: OptionSpec = {
'noindex': directives.flag,
'noindexentry': directives.flag,
'nocontentsentry': directives.flag,
}
def handle_signature(self, sig: str, signode: desc_signature) -> str:
name = sig.strip()
signode['fullname'] = name
signode += addnodes.desc_name(name, name)
return name
def add_target_and_index(self, name: str, sig: str, signode: desc_signature) -> None:
node_id = make_id(self.env, self.state.document, self.objtype, name)
signode['ids'].append(node_id)
self.state.document.note_explicit_target(signode)
domain = cast(CMakeDomain, self.env.get_domain('cmake'))
domain.note_object(self.objtype, name, node_id, location=signode)
if 'noindexentry' not in self.options:
indextext = self.get_index_text(self.objtype, name)
if indextext:
self.indexnode['entries'].append(('single', indextext, node_id, '', None))
def get_index_text(self, objectname: str, name: str) -> str:
return ''
def _object_hierarchy_parts(self, sig_node: desc_signature) -> tuple[str, ...]:
if 'fullname' not in sig_node:
return ()
parts = list(self.env.ref_context.get('cmake:functions', ()))
parts.append(sig_node['fullname'])
return tuple(parts)
def _toc_entry_name(self, sig_node: desc_signature) -> str:
if not sig_node.get('_toc_parts'):
return ''
config = self.env.app.config
objtype = sig_node.parent.get('objtype')
*parents, name = sig_node['_toc_parts']
return name
class CMakeFunction(CMakeMarkup):
def get_index_text(self, objectname: str, name: str) -> str:
return _('%s (CMake function)') % name
def before_content(self) -> None:
if self.names:
functions = self.env.ref_context.setdefault('cmake:functions', [])
functions.append(self.names[0])
def after_content(self) -> None:
functions = self.env.ref_context.setdefault('cmake:functions', [])
if functions:
functions.pop()
class CMakeFunctionArgument(CMakeMarkup):
option_spec: OptionSpec = CMakeMarkup.option_spec.copy()
option_spec.update({
'type': directives.unchanged,
})
def handle_signature(self, sig: str, signode: desc_signature) -> str:
try:
name, arguments = re.split(r'\s+', sig.strip())
except ValueError:
name, arguments = sig, None
signode['fullname'] = name.strip()
signode += addnodes.desc_name(name, name)
if arguments:
signode += addnodes.desc_annotation(' ' + arguments, ' ' + arguments)
if self.options.get('type'):
text = ' (%s)' % self.options['type']
signode += addnodes.desc_annotation(text, text)
return name
def add_target_and_index(self, name: str, sig: str, signode: desc_signature) -> None:
domain = cast(CMakeDomain, self.env.get_domain('cmake'))
function_name = self.current_function
if function_name:
prefix = '-'.join([self.objtype, function_name])
objname = f'{function_name}({name})'
else:
prefix = self.objtype
objname = name
node_id = make_id(self.env, self.state.document, prefix, name)
signode['ids'].append(node_id)
self.state.document.note_explicit_target(signode)
domain.note_object(self.objtype, objname, node_id, location=signode)
if function_name:
key = name[0].upper()
pair = [_('%s (CMake function)') % function_name, _('%s (CMake function argument)') % name]
self.indexnode['entries'].append(('pair', '; '.join(pair), node_id, '', key))
else:
key = name[0].upper()
text = _('%s (CMake function argument)') % name
self.indexnode['entries'].append(('single', text, node_id, '', key))
if 'noindexentry' not in self.options:
indextext = self.get_index_text(self.objtype, name)
if indextext:
self.indexnode['entries'].append(('single', indextext, node_id, '', None))
@property
def current_function(self) -> str:
functions = self.env.ref_context.get('cmake:functions')
if functions:
return functions[-1]
else:
return ''
class CMakeVariable(CMakeMarkup):
def get_index_text(self, objectname: str, name: str) -> str:
return _('%s (CMake variable)') % name
class CMakeProperty(CMakeMarkup):
def get_index_text(self, objectname: str, name: str) -> str:
return _('%s (CMake property)') % name
class CMakeTarget(CMakeMarkup):
def get_index_text(self, objectname: str, name: str) -> str:
return _('%s (CMake target)') % name
class CMakeDomain(Domain):
name = 'cmake'
label = 'CMake'
object_types = {
'func': ObjType(_('func'), 'func'),
'func:arg': ObjType(_('func-arg'), 'func'),
'var': ObjType(_('var'), 'var'),
'prop': ObjType(_('prop'), 'prop'),
'tgt': ObjType(_('tgt'), 'tgt'),
}
directives = {
'func': CMakeFunction,
'func:arg': CMakeFunctionArgument,
'var': CMakeVariable,
'prop': CMakeProperty,
'tgt': CMakeTarget,
}
roles = {
'func': XRefRole(),
'var': XRefRole(),
'prop': XRefRole(),
'tgt': XRefRole(),
}
initial_data: dict[str, dict[tuple[str, str], str]] = {
'objects': {}, # fullname -> docname, objtype
}
@property
def objects(self) -> dict[tuple[str, str], tuple[str, str]]:
return self.data.setdefault('objects', {}) # (objtype, fullname) -> (docname, node_id)
def note_object(self, objtype: str, name: str, node_id: str, location: Any = None) -> None:
logger.debug('CMake domain add {} object named {}'.format(objtype, repr(name)))
if (objtype, name) in self.objects:
docname, node_id = self.objects[objtype, name]
logger.warning(__('duplicate description of %s %s, other instance in %s') %
(objtype, name, docname), location=location)
self.objects[objtype, name] = (self.env.docname, node_id)
def clear_doc(self, docname: str) -> None:
for (typ, name), (doc, _node_id) in list(self.objects.items()):
if doc == docname:
del self.objects[typ, name]
def merge_domaindata(self, docnames: list[str], otherdata: dict[str, Any]) -> None:
# XXX check duplicates
for (typ, name), (doc, node_id) in otherdata['objects'].items():
if doc in docnames:
self.objects[typ, name] = (doc, node_id)
def resolve_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder,
typ: str, target: str, node: pending_xref, contnode: Element,
) -> Element | None:
objtypes = self.objtypes_for_role(typ)
for objtype in objtypes:
result = self.objects.get((objtype, target))
if result:
todocname, node_id = result
return make_refnode(builder, fromdocname, todocname, node_id,
contnode, target + ' ' + objtype)
return None
def resolve_any_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder,
target: str, node: pending_xref, contnode: Element,
) -> list[tuple[str, Element]]:
results: list[tuple[str, Element]] = []
for objtype in self.object_types:
result = self.objects.get((objtype, target))
if result:
todocname, node_id = result
results.append(('cmake:' + self.role_for_objtype(objtype),
make_refnode(builder, fromdocname, todocname, node_id,
contnode, target + ' ' + objtype)))
return results
def get_objects(self) -> Iterator[tuple[str, str, str, str, str, int]]:
for (typ, name), (docname, node_id) in self.data['objects'].items():
yield name, name, typ, docname, node_id, 1
def setup(app: Sphinx) -> dict[str, Any]:
app.add_domain(CMakeDomain)
return {
'version': '0.1',
'parallel_read_safe': True,
'parallel_write_safe': True,
}