From a437539096e8d5e4a49101f5d05774667089dc0d Mon Sep 17 00:00:00 2001
From: Christian Kandeler <christian.kandeler@qt.io>
Date: Wed, 27 Oct 2021 17:11:28 +0200
Subject: [PATCH] CppEditor: Fix doxygen comment magic before templates

Fixes: QTCREATORBUG-9620
Change-Id: I65a434d72adbe72d449783a917444c2ee216fc5e
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
---
 src/plugins/cppeditor/cppdoxygen_test.cpp  | 14 ++++++++++++++
 src/plugins/cppeditor/doxygengenerator.cpp |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/src/plugins/cppeditor/cppdoxygen_test.cpp b/src/plugins/cppeditor/cppdoxygen_test.cpp
index c9c40a8dd80..7e2781a6ce4 100644
--- a/src/plugins/cppeditor/cppdoxygen_test.cpp
+++ b/src/plugins/cppeditor/cppdoxygen_test.cpp
@@ -326,6 +326,20 @@ void DoxygenTest::testBasic_data()
           "};\n"
     );
 
+    QTest::newRow("classTemplate") << _(
+          "bool preventFolding;\n"
+          "/**|\n"
+          "template<typename T> class C {\n"
+          "};\n"
+        ) << _(
+          "bool preventFolding;\n"
+          "/**\n"
+          " * @brief The C class\n"
+          " */\n"
+          "template<typename T> class C {\n"
+          "};\n"
+    );
+
     QTest::newRow("continuation_after_text_in_first_line") << _(
         "bool preventFolding;\n"
         "/*! leading comment|\n"
diff --git a/src/plugins/cppeditor/doxygengenerator.cpp b/src/plugins/cppeditor/doxygengenerator.cpp
index aba3655b811..9ab9e109eb6 100644
--- a/src/plugins/cppeditor/doxygengenerator.cpp
+++ b/src/plugins/cppeditor/doxygengenerator.cpp
@@ -141,6 +141,9 @@ QString DoxygenGenerator::generate(QTextCursor cursor,
 
 QString DoxygenGenerator::generate(QTextCursor cursor, DeclarationAST *decl)
 {
+    if (const TemplateDeclarationAST * const templDecl = decl->asTemplateDeclaration())
+        decl = templDecl->declaration;
+
     SpecifierAST *spec = nullptr;
     DeclaratorAST *decltr = nullptr;
     if (SimpleDeclarationAST *simpleDecl = decl->asSimpleDeclaration()) {