qdoc: Properly document "private" signals

When a signal declaration is marked with QSignalPrivate,
This note is included in its documentation: "Note: This
is a private signal. It must not be emitted by the user."

For Notifier signals, [see note] is appended to the signature line,
and the Note is printed below the list.

Change-Id: Ie792894ace56cda47fd9a45af9c732f408ac45f6
Task-number: QTBUG-45535
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/tools/qdoc/cppcodeparser.cpp b/src/tools/qdoc/cppcodeparser.cpp
index 4fbe20b09e..f12fb70227 100644
--- a/src/tools/qdoc/cppcodeparser.cpp
+++ b/src/tools/qdoc/cppcodeparser.cpp
@@ -1329,6 +1329,11 @@ bool CppCodeParser::matchParameter(FunctionNode *func)
     QString name;
     CodeChunk defaultValue;
 
+    if (match(Tok_QPrivateSignal)) {
+        func->setPrivateSignal();
+        return true;
+    }
+
     if (!matchDataType(&dataType, &name)) {
         return false;
     }