C++: fix support for nested anonymous classes

A member of nested anonymous class should be visible as a member of
enclosing class(if there is no declaration of this nested anonymous
class).

Fix:
* marking
* find usage
* follow symbol
* completion

Task-number: QTCREATORBUG-10876
Task-number: QTCREATORBUG-11170
Change-Id: If5b4d198e9075f2a8aa899ae59190f2c05f7b1ff
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Przemyslaw Gorszkowski <pgorszkowski@gmail.com>
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

1 files changed, 62 insertions, 1 deletions

diff --git a/src/plugins/cpptools/cppcompletion_test.cpp b/src/plugins/cpptools/cppcompletion_test.cpp
index 7b78ac901a..eb657f783b 100644
--- a/src/plugins/cpptools/cppcompletion_test.cpp
+++ b/src/plugins/cpptools/cppcompletion_test.cpp
@@ -1425,7 +1425,9 @@ void CppToolsPlugin::test_completion_data()
             "   @\n"
             "}\n"
         ) << _("s.") << (QStringList()
-            << QLatin1String("S"));
+            << QLatin1String("S")
+            << QLatin1String("i")
+            << QLatin1String("c"));
 
     QTest::newRow("instantiate_template_function") << _(
             "template <typename T>\n"
@@ -1439,6 +1441,65 @@ void CppToolsPlugin::test_completion_data()
             << QLatin1String("A")
             << QLatin1String("a"));
 
+    QTest::newRow("nested_anonymous_class_QTCREATORBUG10876_1") << _(
+            "struct EnclosingStruct\n"
+            "{\n"
+            "   int memberOfEnclosingStruct;\n"
+            "   struct\n"
+            "   {\n"
+            "       int memberNestedAnonymousClass;\n"
+            "   };\n"
+            "   void fun()\n"
+            "   {\n"
+            "       @\n"
+            "   }\n"
+            "};\n"
+        ) << _("member") << (QStringList()
+            << QLatin1String("memberNestedAnonymousClass")
+            << QLatin1String("memberOfEnclosingStruct"));
+
+    QTest::newRow("nested_anonymous_class_QTCREATORBUG10876_2") << _(
+            "struct EnclosingStruct\n"
+            "{\n"
+            "   int memberOfEnclosingStruct;\n"
+            "   struct\n"
+            "   {\n"
+            "       int memberOfNestedAnonymousClass;\n"
+            "       struct\n"
+            "       {\n"
+            "           int memberOfNestedOfNestedAnonymousClass;\n"
+            "       };\n"
+            "   };\n"
+            "   void fun()\n"
+            "   {\n"
+            "       @\n"
+            "   }\n"
+            "};\n"
+        ) << _("member") << (QStringList()
+            << QLatin1String("memberOfNestedAnonymousClass")
+            << QLatin1String("memberOfNestedOfNestedAnonymousClass")
+            << QLatin1String("memberOfEnclosingStruct"));
+
+    QTest::newRow("nested_anonymous_class_QTCREATORBUG10876_3") << _(
+            "struct EnclosingStruct\n"
+            "{\n"
+            "   int memberOfEnclosingStruct;\n"
+            "   struct\n"
+            "   {\n"
+            "       int memberOfNestedAnonymousClass;\n"
+            "       struct\n"
+            "       {\n"
+            "           int memberOfNestedOfNestedAnonymousClass;\n"
+            "       } nestedOfNestedAnonymousClass;\n"
+            "   };\n"
+            "   void fun()\n"
+            "   {\n"
+            "       @\n"
+            "   }\n"
+            "};\n"
+        ) << _("nestedOfNestedAnonymousClass.") << (QStringList()
+            << QLatin1String("memberOfNestedOfNestedAnonymousClass"));
+
     QTest::newRow("crash_cloning_template_class_QTCREATORBUG9329") << _(
             "struct A {};\n"
             "template <typename T>\n"