Clang: Fix tooltip for pointer to class

Detect and dereference pointer to get to the correct class.

Fixes: QTCREATORBUG-21523
Change-Id: I679778b2cfbbce4466294dabdee096686f53f095
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>

2 files changed, 17 insertions, 0 deletions

diff --git a/tests/unit/unittest/clangtooltipinfo-test.cpp b/tests/unit/unittest/clangtooltipinfo-test.cpp
index baca6cb623..807618deef 100644
--- a/tests/unit/unittest/clangtooltipinfo-test.cpp
+++ b/tests/unit/unittest/clangtooltipinfo-test.cpp
@@ -584,6 +584,18 @@ TEST_F(ToolTipInfo, AutoTypeBuiltin)
     ASSERT_THAT(actual.text, Utf8StringLiteral("int"));
 }
 
+TEST_F(ToolTipInfo, PointerToPointerToClass)
+{
+    ::ToolTipInfo expected(Utf8StringLiteral("Nuu **"));
+    expected.qdocIdCandidates = {Utf8StringLiteral("Nuu")};
+    expected.qdocMark = Utf8StringLiteral("Nuu");
+    expected.qdocCategory = ::ToolTipInfo::ClassOrNamespace;
+
+    const ::ToolTipInfo actual = tooltip(200, 12);
+
+    ASSERT_THAT(actual, IsToolTip(expected));
+}
+
 // TODO: Test for qdoc entries, too.
 TEST_F(ToolTipInfo, AutoTypeEnum)
 {
diff --git a/tests/unit/unittest/data/tooltipinfo.cpp b/tests/unit/unittest/data/tooltipinfo.cpp
index 266d86bc47..bfad1fdd0f 100644
--- a/tests/unit/unittest/data/tooltipinfo.cpp
+++ b/tests/unit/unittest/data/tooltipinfo.cpp
@@ -194,3 +194,8 @@ void constructor()
     ExplicitCon();
     ExplicitCon(2);
 }
+
+Nuu **pointers(Nuu **p1)
+{
+    return p1;
+}