[PATCH v2 19/23] docs/qapidoc: add visit_member() method

[John Snow]

This method is used for generating the "members" of a wide variety of
things, including structs, unions, enums, alternates, etc. The field
name it uses to do so is dependent on the type of entity the "member"
belongs to.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 docs/sphinx/qapidoc.py | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/docs/sphinx/qapidoc.py b/docs/sphinx/qapidoc.py
index cbc62eb5084..5f00615ae32 100644
--- a/docs/sphinx/qapidoc.py
+++ b/docs/sphinx/qapidoc.py
@@ -74,6 +74,16 @@ def dedent(text: str) -> str:
 
 
 class Transmogrifier:
+    # Field names used for different entity types:
+    field_types = {
+        "enum": "value",
+        "struct": "memb",
+        "union": "memb",
+        "event": "memb",
+        "command": "arg",
+        "alternate": "choice",
+    }
+
     def __init__(self, schema):
         self._curr_ent = None
         self._result = StringList()
@@ -84,6 +94,10 @@ def entity(self) -> QAPISchemaEntity:
         assert self._curr_ent is not None
         return self._curr_ent
 
+    @property
+    def member_field_type(self) -> str:
+        return self.field_types[self.entity.meta]
+
     # General-purpose rST generation functions
 
     def get_indent(self) -> str:
@@ -194,6 +208,19 @@ def visit_paragraph(self, section: QAPIDoc.Section) -> 
None:
         self.add_lines(section.text, section.info)
         self.ensure_blank_line()
 
+    def visit_member(self, section: QAPIDoc.ArgSection) -> None:
+        # TODO: ifcond for members
+        # TODO?: features for members (documented at entity-level,
+        # but sometimes defined per-member. Should we add such
+        # information to member descriptions when we can?)
+        assert section.text
+        self.generate_field(
+            self.member_field_type,
+            section.member,
+            section.text,
+            section.info,
+        )
+
     def visit_feature(self, section: QAPIDoc.ArgSection) -> None:
         # FIXME - ifcond for features is not handled at all yet!
         # Proposal: decorate the right-hand column with some graphical
-- 
2.47.1