Add --list-listeners option

src/catch2/interfaces/catch_interfaces_reporter.hpp

@@ -27,6 +27,7 @@
 namespace Catch {
 
     struct ReporterDescription;
+    struct ListenerDescription;
     struct TagInfo;
     struct TestCaseInfo;
     class TestCaseHandle;
@@ -249,11 +250,12 @@ namespace Catch {
 
         //! Writes out information about provided reporters using reporter-specific format
         virtual void listReporters(std::vector<ReporterDescription> const& descriptions) = 0;
+        //! Writes out the provided listeners descriptions using reporter-specific format
+        virtual void listListeners(std::vector<ListenerDescription> const& descriptions) = 0;
         //! Writes out information about provided tests using reporter-specific format
         virtual void listTests(std::vector<TestCaseHandle> const& tests) = 0;
         //! Writes out information about the provided tags using reporter-specific format
         virtual void listTags(std::vector<TagInfo> const& tags) = 0;
-
     };
     using IEventListenerPtr = Detail::unique_ptr<IEventListener>;
 

src/catch2/interfaces/catch_interfaces_reporter_factory.hpp

@@ -9,6 +9,7 @@
 #define CATCH_INTERFACES_REPORTER_FACTORY_HPP_INCLUDED
 
 #include <catch2/internal/catch_unique_ptr.hpp>
+#include <catch2/internal/catch_stringref.hpp>
 
 #include <string>
 
@@ -34,6 +35,9 @@ namespace Catch {
     public:
         virtual ~EventListenerFactory(); // = default
         virtual IEventListenerPtr create( IConfig const* config ) const = 0;
+        //! Return a meaningful name for the listener, e.g. its type name
+        virtual StringRef getName() const = 0;
+        //! Return listener's description if available
         virtual std::string getDescription() const = 0;
     };
 } // namespace Catch