ProjectExplorer: Manually check whether a runconfig has a creator

This is used in ProjectConfigurationModel::data()

Constructing the full list is comparatively expensive, and the extra
decoration is not needed.

Change-Id: I5b6c76376f806ea92444916a87d1f2e671e16d5f
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/projectconfigurationmodel.cpp

@@ -93,9 +93,9 @@ QVariant ProjectConfigurationModel::data(const QModelIndex &index, int role) con
 {
     if (index.row() >= m_projectConfigurations.size())
         return {};
-    ProjectConfiguration * const config = m_projectConfigurations.at(index.row());
 
     if (role == Qt::DisplayRole) {
+        ProjectConfiguration * const config = m_projectConfigurations.at(index.row());
         QString displayName = config->expandedDisplayName();
         if (const auto rc = qobject_cast<RunConfiguration *>(config); rc && !rc->hasCreator())
             displayName += QString(" [%1]").arg(Tr::tr("unavailable"));

src/plugins/projectexplorer/runconfiguration.cpp

@@ -140,6 +140,8 @@ void GlobalOrProjectAspect::resetProjectToGlobalSettings()
 
 static std::vector<RunConfiguration::AspectFactory> theAspectFactories;
 
+static QList<RunConfigurationFactory *> g_runConfigurationFactories;
+
 RunConfiguration::RunConfiguration(Target *target, Utils::Id id)
     : ProjectConfiguration(target, id)
 {
@@ -236,10 +238,13 @@ bool RunConfiguration::isCustomized() const
 
 bool RunConfiguration::hasCreator() const
 {
-    return Utils::contains(RunConfigurationFactory::creatorsForTarget(target()),
-                               [this](const RunConfigurationCreationInfo &info) {
-        return info.factory->runConfigurationId() == id() && info.buildKey == buildKey();
-    });
+    for (RunConfigurationFactory *factory : std::as_const(g_runConfigurationFactories)) {
+        if (factory->runConfigurationId() == id()) {
+            if (factory->supportsBuildKey(target(), buildKey()))
+                return true;
+        }
+    }
+    return false;
 }
 
 void RunConfiguration::setPristineState()
@@ -453,8 +458,6 @@ QVariantHash RunConfiguration::extraData() const
     ExtensionSystem::IPlugin::initialize() method.
 */
 
-static QList<RunConfigurationFactory *> g_runConfigurationFactories;
-
 /*!
     Constructs a RunConfigurationFactory instance and registers it into a global
     list.
@@ -522,6 +525,14 @@ RunConfigurationFactory::availableCreators(Target *target) const
     });
 }
 
+bool RunConfigurationFactory::supportsBuildKey(Target *target, const QString &key) const
+{
+    if (!canHandle(target))
+        return false;
+    const QList<BuildTargetInfo> buildTargets = target->buildSystem()->applicationTargets();
+    return anyOf(buildTargets, [&key](const BuildTargetInfo &info) { return info.buildKey == key; });
+}
+
 /*!
     Adds a device type for which this RunConfigurationFactory
     can create RunConfigurations.
@@ -674,4 +685,11 @@ FixedRunConfigurationFactory::availableCreators(Target *parent) const
     return {rci};
 }
 
+bool FixedRunConfigurationFactory::supportsBuildKey(Target *target, const QString &key) const
+{
+    Q_UNUSED(target)
+    Q_UNUSED(key)
+    return false;
+}
+
 } // namespace ProjectExplorer

src/plugins/projectexplorer/runconfiguration.h

@@ -197,6 +197,7 @@ public:
 
 protected:
     virtual QList<RunConfigurationCreationInfo> availableCreators(Target *target) const;
+    virtual bool supportsBuildKey(Target *target, const QString &key) const;
 
     using RunConfigurationCreator = std::function<RunConfiguration *(Target *)>;
 
@@ -218,6 +219,7 @@ private:
     RunConfiguration *create(Target *target) const;
 
     friend class RunConfigurationCreationInfo;
+    friend class RunConfiguration;
     RunConfigurationCreator m_creator;
     Utils::Id m_runConfigurationId;
     QList<Utils::Id> m_supportedProjectTypes;
@@ -231,9 +233,10 @@ public:
     explicit FixedRunConfigurationFactory(const QString &displayName,
                                           bool addDeviceName = false);
 
-    QList<RunConfigurationCreationInfo> availableCreators(Target *parent) const override;
-
 private:
+    QList<RunConfigurationCreationInfo> availableCreators(Target *parent) const override;
+    bool supportsBuildKey(Target *target, const QString &key) const override;
+
     const QString m_fixedBuildTarget;
     const bool m_decorateTargetName;
 };