CMakeProject: Update attribute in update method

createGeneratedCodeModelSupport() can now be marked const and is renamed
since it doesn't create GeneratedCodeModelSupport instances any longer.

Change-Id: I8b4b8e8980623841889bd3a03e5fe8c1d4342cb3
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>

src/plugins/cmakeprojectmanager/cmakeproject.cpp

@@ -280,7 +280,9 @@ void CMakeProject::updateProjectData(CMakeBuildConfiguration *bc)
 
     t->updateDefaultRunConfigurations();
 
-    createGeneratedCodeModelSupport();
+    qDeleteAll(m_extraCompilers);
+    m_extraCompilers = findExtraCompilers();
+    CppTools::GeneratedCodeModelSupport::update(m_extraCompilers);
 
     QtSupport::CppKitInfo kitInfo(this);
     QTC_ASSERT(kitInfo.isValid(), return);
@@ -579,10 +581,9 @@ bool CMakeProject::mustUpdateCMakeStateBeforeBuild()
     return m_delayedParsingTimer.isActive();
 }
 
-void CMakeProject::createGeneratedCodeModelSupport()
+QList<ProjectExplorer::ExtraCompiler *> CMakeProject::findExtraCompilers() const
 {
-    qDeleteAll(m_extraCompilers);
-    m_extraCompilers.clear();
+    QList<ProjectExplorer::ExtraCompiler *> extraCompilers;
     const QList<ExtraCompilerFactory *> factories =
             ExtraCompilerFactory::extraCompilerFactories();
 
@@ -612,10 +613,10 @@ void CMakeProject::createGeneratedCodeModelSupport()
         const FileNameList fileNames
                 = transform(generated,
                             [](const QString &s) { return FileName::fromString(s); });
-        m_extraCompilers.append(factory->create(this, file, fileNames));
+        extraCompilers.append(factory->create(this, file, fileNames));
     }
 
-    CppTools::GeneratedCodeModelSupport::update(m_extraCompilers);
+    return extraCompilers;
 }
 
 } // namespace CMakeProjectManager

src/plugins/cmakeprojectmanager/cmakeproject.h

@@ -100,7 +100,7 @@ private:
     std::unique_ptr<Internal::CMakeProjectNode>
     generateProjectTree(const QList<const ProjectExplorer::FileNode*> &allFiles) const;
 
-    void createGeneratedCodeModelSupport();
+    QList<ProjectExplorer::ExtraCompiler *> findExtraCompilers() const;
     QStringList filesGeneratedFrom(const QString &sourceFile) const final;
 
     // TODO probably need a CMake specific node structure