Signed-off-by: John Snow <js...@redhat.com>
---
docs/sphinx/qapi_domain.py | 95 ++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
diff --git a/docs/sphinx/qapi_domain.py b/docs/sphinx/qapi_domain.py
index a445150ae59..183d9a2766f 100644
--- a/docs/sphinx/qapi_domain.py
+++ b/docs/sphinx/qapi_domain.py
@@ -18,7 +18,9 @@
)
from docutils import nodes
+from docutils.parsers.rst import directives
+from compat import KeywordNode, SpaceNode
from sphinx import addnodes
from sphinx.addnodes import desc_signature, pending_xref
from sphinx.directives import ObjectDescription
@@ -40,6 +42,7 @@
from sphinx.application import Sphinx
from sphinx.builders import Builder
from sphinx.environment import BuildEnvironment
+ from sphinx.util.typing import OptionSpec
logger = logging.getLogger(__name__)
@@ -99,6 +102,8 @@ def process_link(
return title, target
+# Alias for the return of handle_signature(), which is used in several places.
+# (In the Python domain, this is Tuple[str, str] instead.)
Signature = str
@@ -158,6 +163,96 @@ def add_target_and_index(
)
+class QAPIObject(QAPIDescription):
+ """
+ Description of a generic QAPI object.
+
+ It's not used directly, but is instead subclassed by specific directives.
+ """
+
+ # Inherit some standard options from Sphinx's ObjectDescription
+ option_spec: OptionSpec = ( # type:ignore[misc]
+ ObjectDescription.option_spec.copy()
+ )
+ option_spec.update(
+ {
+ # Borrowed from the Python domain:
+ "module": directives.unchanged, # Override contextual module name
+ }
+ )
+
+ def get_signature_prefix(self) -> List[nodes.Node]:
+ """Returns a prefix to put before the object name in the signature."""
+ assert self.objtype
+ return [
+ KeywordNode("", self.objtype.title()),
+ SpaceNode(" "),
+ ]
+
+ def get_signature_suffix(self) -> List[nodes.Node]:
+ """Returns a suffix to put after the object name in the signature."""
+ return []
+
+ def handle_signature(self, sig: str, signode: desc_signature) -> Signature:
+ """
+ Transform a QAPI definition name into RST nodes.
+
+ This method was originally intended for handling function
+ signatures. In the QAPI domain, however, we only pass the
+ definition name as the directive argument and handle everything
+ else in the content body with field lists.
+
+ As such, the only argument here is "sig", which is just the QAPI
+ definition name.
+ """
+ modname = self.options.get(
+ "module", self.env.ref_context.get("qapi:module")
+ )
+
+ signode["fullname"] = sig
+ signode["module"] = modname
+ sig_prefix = self.get_signature_prefix()
+ if sig_prefix:
+ signode += addnodes.desc_annotation(
+ str(sig_prefix), "", *sig_prefix
+ )
+ signode += addnodes.desc_name(sig, sig)
+ signode += self.get_signature_suffix()
+
+ return sig
+
+ def _object_hierarchy_parts(
+ self, sig_node: desc_signature
+ ) -> Tuple[str, ...]:
+ if "fullname" not in sig_node:
+ return ()
+ modname = sig_node.get("module")
+ fullname = sig_node["fullname"]
+
+ if modname:
+ return (modname, *fullname.split("."))
+
+ return tuple(fullname.split("."))
+
+ def _toc_entry_name(self, sig_node: desc_signature) -> str:
+ # This controls the name in the TOC and on the sidebar.
+
+ # This is the return type of _object_hierarchy_parts().
+ toc_parts = cast(Tuple[str, ...], sig_node.get("_toc_parts", ()))
+ if not toc_parts:
+ return ""
+
+ config = self.env.app.config
+ *parents, name = toc_parts
+ if config.toc_object_entries_show_parents == "domain":
+ return sig_node.get("fullname", name)
+ if config.toc_object_entries_show_parents == "hide":
+ return name
+ if config.toc_object_entries_show_parents == "all":
+ return ".".join(parents + [name])
+ return ""
+
+
class QAPIModule(QAPIDescription):
"""
Directive to mark description of a new module.
--
2.48.1
