image: Actually make backends registerable

1 files changed, 15 insertions, 11 deletions

diff --git a/image/backends/basic.hh b/image/backends/basic.hh
index 3181f69..95b94ae 100644
--- a/image/backends/basic.hh
+++ b/image/backends/basic.hh
@@ -19,14 +19,6 @@
 namespace Horizon {
 namespace Image {
 
-class BasicBackend;
-
-struct BackendDescriptor {
-    std::string type_code;
-    std::string description;
-    std::function<BasicBackend *(std::string, std::string)> creation_fn;
-};
-
 class BasicBackend {
 public:
     /*! Create the backend object.
@@ -53,9 +45,6 @@ public:
      */
     virtual int finalise();
 
-    /*! Returns a list of available backends. */
-    static const std::vector<BackendDescriptor> available_backends();
-
     /*! The intermediate directory which contains the sysroot the image
      *  should contain. */
     const std::string &ir_dir;
@@ -63,5 +52,20 @@ public:
     const std::string &out_path;
 };
 
+struct BackendDescriptor {
+    std::string type_code;
+    std::string description;
+    std::function<BasicBackend *(std::string, std::string)> creation_fn;
+};
+
+class BackendManager {
+public:
+    /*! Returns a list of available backends. */
+    static const std::vector<BackendDescriptor> available_backends();
+
+    /*! Register a new backend. */
+    static void register_backend(BackendDescriptor desc);
+};
+
 }
 }