ProjectExplorer: Streamline RunConfigurationFactory interface

canHandle() is only used locally in the implementation, so
make it private and de-virtualize.

canCreateHelper() did nothing except returning true anymore,
so remove it.

Change-Id: Ifac39e077e3c296b2b2dfc9fbb29c20884e056a3
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/runconfiguration.cpp

@@ -499,15 +499,12 @@ RunConfigurationFactory::availableCreators(Target *parent) const
 }
 
 /*!
-    Specifies a list of device types for which this RunConfigurationFactory
+    Adds a list of device types for which this RunConfigurationFactory
-    can create RunConfiguration.
+    can create RunConfigurations.
 
-    Not calling this function or using an empty list means no restriction.
+    If this function is never called for a RunConfiguarionFactory,
+    the factory will create RunConfigurations for all device types.
 */
-void RunConfigurationFactory::setSupportedTargetDeviceTypes(const QList<Core::Id> &ids)
-{
-    m_supportedTargetDeviceTypes = ids;
-}
 
 void RunConfigurationFactory::addSupportedTargetDeviceType(Core::Id id)
 {
@@ -544,20 +541,12 @@ bool RunConfigurationFactory::canHandle(Target *target) const
     return true;
 }
 
-bool RunConfigurationFactory::canCreateHelper(Target *, const QString &) const
-{
-    return true;
-}
-
 RunConfiguration *RunConfigurationCreationInfo::create(Target *target) const
 {
     QTC_ASSERT(factory->canHandle(target), return nullptr);
     QTC_ASSERT(id == factory->runConfigurationBaseId(), return nullptr);
-
-    if (!factory->canCreateHelper(target, targetName))
-        return nullptr;
-
     QTC_ASSERT(factory->m_creator, return nullptr);
+
     RunConfiguration *rc = factory->m_creator(target);
     if (!rc)
         return nullptr;

src/plugins/projectexplorer/runconfiguration.h

@@ -320,8 +320,6 @@ public:
 
     static const QList<RunConfigurationFactory *> allRunConfigurationFactories();
 
-    virtual bool canHandle(Target *target) const;
-
     static RunConfiguration *restore(Target *parent, const QVariantMap &map);
     static RunConfiguration *clone(Target *parent, RunConfiguration *source);
     static const QList<RunConfigurationFactory *> allFactories();
@@ -333,7 +331,6 @@ public:
 
 protected:
     virtual QList<RunConfigurationCreationInfo> availableCreators(Target *parent) const;
-    virtual bool canCreateHelper(Target *parent, const QString &buildTarget) const;
 
     using RunConfigurationCreator = std::function<RunConfiguration *(Target *)>;
 
@@ -345,11 +342,12 @@ protected:
     }
 
     void addSupportedProjectType(Core::Id id);
-    void setSupportedTargetDeviceTypes(const QList<Core::Id> &ids);
     void addSupportedTargetDeviceType(Core::Id id);
     void setDecorateDisplayNames(bool on);
 
 private:
+    bool canHandle(Target *target) const;
+
     friend class RunConfigurationCreationInfo;
     RunConfigurationCreator m_creator;
     Core::Id m_runConfigBaseId;