Clang: Filter scope operators

Scope operators are not really user defined.

Change-Id: I1ab08dc3db7c39b98da02b6ef10bf78b75a6856d
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/tools/clangbackend/ipcsource/highlightinginformation.cpp

@@ -241,11 +241,23 @@ HighlightingType literalKind(const Cursor &cursor)
     Q_UNREACHABLE();
 }
 
+bool hasOperatorName(const char *operatorString)
+{
+    return std::strncmp(operatorString, "operator", 8) == 0;
+}
+
+HighlightingType operatorKind(const Cursor &cursor)
+{
+    if (hasOperatorName(cursor.spelling().cString()))
+        return HighlightingType::Operator;
+    else
+        return HighlightingType::Invalid;
+}
 
 HighlightingType punctationKind(const Cursor &cursor)
 {
     switch (cursor.kind()) {
-        case CXCursor_DeclRefExpr: return HighlightingType::Operator;
+        case CXCursor_DeclRefExpr: return operatorKind(cursor);
         default:                   return HighlightingType::Invalid;
     }
 }

tests/unit/unittest/data/highlightinginformations.cpp

@@ -383,3 +383,19 @@ void f17()
 {
     TemplatedType<int> TemplatedTypeDeclaration;
 }
+
+void f18()
+{
+    auto value = 1 + 2;
+}
+
+class ScopeClass
+{
+public:
+    static void ScopeOperator();
+};
+
+void f19()
+{
+    ScopeClass::ScopeOperator();
+}

tests/unit/unittest/highlightinginformationstest.cpp

@@ -881,6 +881,20 @@ TEST_F(HighlightingInformations, TemplatedTypeDeclaration)
     ASSERT_THAT(infos[0], HasType(HighlightingType::Type));
 }
 
+TEST_F(HighlightingInformations, NoOperator)
+{
+    const auto infos = translationUnit.highlightingInformationsInRange(sourceRange(389, 24));
+
+    ASSERT_THAT(infos[2], HasType(HighlightingType::Invalid));
+}
+
+TEST_F(HighlightingInformations, ScopeOperator)
+{
+    const auto infos = translationUnit.highlightingInformationsInRange(sourceRange(400, 33));
+
+    ASSERT_THAT(infos[1], HasType(HighlightingType::Invalid));
+}
+
 Data *HighlightingInformations::d;
 
 void HighlightingInformations::SetUpTestCase()