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-rw-r--r--ingen/LV2Features.hpp13
1 files changed, 13 insertions, 0 deletions
diff --git a/ingen/LV2Features.hpp b/ingen/LV2Features.hpp
index 2efd62f8..61180636 100644
--- a/ingen/LV2Features.hpp
+++ b/ingen/LV2Features.hpp
@@ -47,6 +47,19 @@ public:
Node* block) = 0;
};
+ class EmptyFeature : public Feature {
+ public:
+ EmptyFeature(const char* uri) : _uri(uri) {}
+
+ virtual const char* uri() const { return _uri; }
+
+ virtual SPtr<LV2_Feature> feature(World* world, Node* block) {
+ return SPtr<LV2_Feature>();
+ }
+
+ const char* _uri;
+ };
+
class FeatureArray : public Raul::Noncopyable {
public:
typedef std::vector< SPtr<LV2_Feature> > FeatureVector;