1 files changed, 23 insertions, 0 deletions
diff --git a/src/libcmd/command-installable-value.hh b/src/libcmd/command-installable-value.hh
new file mode 100644
index 000000000..7880d4119
--- /dev/null
+++ b/src/libcmd/command-installable-value.hh
@@ -0,0 +1,23 @@
+#pragma once
+///@file
+
+#include "installable-value.hh"
+#include "command.hh"
+
+namespace nix {
+
+/**
+ * An InstallableCommand where the single positional argument must be an
+ * InstallableValue in particular.
+ */
+struct InstallableValueCommand : InstallableCommand
+{
+    /**
+     * Entry point to this command
+     */
+    virtual void run(ref<Store> store, ref<InstallableValue> installable) = 0;
+
+    void run(ref<Store> store, ref<Installable> installable) override;
+};
+
+}