1 files changed, 46 insertions, 0 deletions
diff --git a/qtruby/rubylib/qtruby/marshall.h b/qtruby/rubylib/qtruby/marshall.h
new file mode 100644
index 00000000..cf20b86d
--- /dev/null
+++ b/qtruby/rubylib/qtruby/marshall.h
@@ -0,0 +1,46 @@
+#ifndef MARSHALL_H
+#define MARSHALL_H
+
+#include <smoke.h>
+#include <ruby.h>
+
+class SmokeType;
+
+class Marshall {
+public:
+    /**
+     * FromVALUE is used for virtual function return values and regular
+     * method arguments.
+     *
+     * ToVALUE is used for method return-values and virtual function
+     * arguments.
+     */
+    typedef void (*HandlerFn)(Marshall *);
+    enum Action { FromVALUE, ToVALUE };
+    virtual SmokeType type() = 0;
+    virtual Action action() = 0;
+    virtual Smoke::StackItem &item() = 0;
+    virtual VALUE * var() = 0;
+    virtual void unsupported() = 0;
+    virtual Smoke *smoke() = 0;
+    /**
+     * For return-values, next() does nothing.
+     * For FromRV, next() calls the method and returns.
+     * For ToRV, next() calls the virtual function and returns.
+     *
+     * Required to reset Marshall object to the state it was
+     * before being called when it returns.
+     */
+    virtual void next() = 0;
+    /**
+     * For FromSV, cleanup() returns false when the handler should free
+     * any allocated memory after next().
+     *
+     * For ToSV, cleanup() returns true when the handler should delete
+     * the pointer passed to it.
+     */
+    virtual bool cleanup() = 0;
+
+    virtual ~Marshall() {}
+};    
+#endif