CppEditor: Let users check for unused functions in (sub-)projects

Note that especially in C++, there can be a lot of false positives,
especially in template-heavy code bases. We filter out the most notorious
offenders, namely:
    - templates themselves
    - constructors and destructors
    - *begin() and *end()
    - qHash()
    - main()
Since the code model does not know about symbol visibility, the
functionality is quite useless for libraries, unless you want to check
your test coverage.
The procedure is rather slow, but that shouldn't matter so much, as it's
something you'll only run "once in a while".

Fixes: QTCREATORBUG-6772
Change-Id: If00a537b760a9b0babdda6c848133715c3240155
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

1 files changed, 5 insertions, 5 deletions

diff --git a/tests/auto/cplusplus/findusages/tst_findusages.cpp b/tests/auto/cplusplus/findusages/tst_findusages.cpp
index 82dd5564379..1cb09810306 100644
--- a/tests/auto/cplusplus/findusages/tst_findusages.cpp
+++ b/tests/auto/cplusplus/findusages/tst_findusages.cpp
@@ -1180,12 +1180,12 @@ void tst_FindUsages::templateClass_className()
     findUsages(classTS);
     QCOMPARE(findUsages.usages().size(), 7);
     QCOMPARE(findUsages.usages().at(0).tags, Usage::Tag::Declaration);
-    QCOMPARE(findUsages.usages().at(1).tags, Usage::Tags());
-    QCOMPARE(findUsages.usages().at(2).tags, Usage::Tags());
+    QCOMPARE(findUsages.usages().at(1).tags, Usage::Tag::ConstructorDestructor);
+    QCOMPARE(findUsages.usages().at(2).tags, Usage::Tag::ConstructorDestructor);
     QCOMPARE(findUsages.usages().at(3).tags, Usage::Tags());
-    QCOMPARE(findUsages.usages().at(4).tags, Usage::Tags());
+    QCOMPARE(findUsages.usages().at(4).tags, Usage::Tag::ConstructorDestructor);
     QCOMPARE(findUsages.usages().at(5).tags, Usage::Tags());
-    QCOMPARE(findUsages.usages().at(6).tags, Usage::Tags());
+    QCOMPARE(findUsages.usages().at(6).tags, Usage::Tag::ConstructorDestructor);
 }
 
 void tst_FindUsages::templateFunctionParameters()
@@ -2324,7 +2324,7 @@ int main()
     find(structS);
     QCOMPARE(find.usages().size(), 18);
     QCOMPARE(find.usages().at(0).tags, Usage::Tag::Declaration);
-    QCOMPARE(find.usages().at(1).tags, Usage::Tags());
+    QCOMPARE(find.usages().at(1).tags, Usage::Tag::ConstructorDestructor);
     QCOMPARE(find.usages().at(2).tags, Usage::Tags());
     QCOMPARE(find.usages().at(3).tags, Usage::Tags());
     QCOMPARE(find.usages().at(4).tags, Usage::Tags());