[PULL 06/19] qapi: Implement boxed event argument documentation

[Markus Armbruster <armbru@redhat.com>]

Generate a reference "Arguments: the members of ...", just like we do
for commands since commit c2dd311cb7 "qapi2texi: Implement boxed
argument documentation".

No change to generated QMP documentation; we don't yet use boxed
events outside tests/.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191024110237.30963-7-armbru@redhat.com>
---
 tests/qapi-schema/doc-good.texi |  4 +++-
 scripts/qapi/doc.py             | 10 +++++++++-
 tests/qapi-schema/doc-good.json |  1 -
 tests/qapi-schema/doc-good.out  |  2 +-
 4 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/tests/qapi-schema/doc-good.texi b/tests/qapi-schema/doc-good.texi
index 98aa78e1fb..d4b15dabf0 100644
--- a/tests/qapi-schema/doc-good.texi
+++ b/tests/qapi-schema/doc-good.texi
@@ -279,7 +279,9 @@ another feature
 
 @deftypefn Event {} EVT-BOXED
 
-BUG: generated doc misses arguments
+
+
+@b{Arguments:} the members of @code{Object}
 
 @end deftypefn
 
diff --git a/scripts/qapi/doc.py b/scripts/qapi/doc.py
index 6d5726cf6e..f2462c9877 100644
--- a/scripts/qapi/doc.py
+++ b/scripts/qapi/doc.py
@@ -266,9 +266,17 @@ class QAPISchemaGenDocVisitor(QAPISchemaVisitor):
 
     def visit_event(self, name, info, ifcond, arg_type, boxed):
         doc = self.cur_doc
+        if boxed:
+            body = texi_body(doc)
+            body += ('\n@b{Arguments:} the members of @code{%s}\n'
+                     % arg_type.name)
+            body += texi_features(doc)
+            body += texi_sections(doc, ifcond)
+        else:
+            body = texi_entity(doc, 'Arguments', ifcond)
         self._gen.add(MSG_FMT(type='Event',
                               name=doc.symbol,
-                              body=texi_entity(doc, 'Arguments', ifcond)))
+                              body=body))
 
     def symbol(self, doc, entity):
         if self._gen._body:
diff --git a/tests/qapi-schema/doc-good.json b/tests/qapi-schema/doc-good.json
index df50a877e3..d992e713d9 100644
--- a/tests/qapi-schema/doc-good.json
+++ b/tests/qapi-schema/doc-good.json
@@ -160,7 +160,6 @@
 
 ##
 # @EVT-BOXED:
-# BUG: generated doc misses arguments
 ##
 { 'event': 'EVT-BOXED',  'boxed': true,
   'data': 'Object' }
diff --git a/tests/qapi-schema/doc-good.out b/tests/qapi-schema/doc-good.out
index 8cc29fce50..4c9406a464 100644
--- a/tests/qapi-schema/doc-good.out
+++ b/tests/qapi-schema/doc-good.out
@@ -196,4 +196,4 @@ another feature
 <- out
 doc symbol=EVT-BOXED
     body=
-BUG: generated doc misses arguments
+
-- 
2.21.0