Add basic Python exec of PYACTION

opm/parser/eclipse/EclipseState/Schedule/Action/PyAction.hpp

@@ -30,8 +30,22 @@ class PyAction {
 public:
     explicit PyAction(const std::string& code_arg);
     const std::string& code() const;
+    ~PyAction();
+
+    /*
+      Storage is a void pointer to a Python dictionary: py::dict. It is represented
+      with a void pointer in this way to avoid adding the Pybind11 headers to this
+      file. Calling scope must do a cast before using the storage pointer:
+
+          py::dict * storage = static_cast<py::dict *>(py_action.storage());
+
+      The purpose of this dictionary is to allow PYACTION scripts to store state
+      between invocations.
+    */
+    void * storage() const;
 private:
     std::string input_code;
+    void * m_storage;
 };
 
 }

opm/parser/eclipse/Python/Python.hpp

@@ -29,7 +29,9 @@ namespace Opm {
 class PythonInterp;
 class Parser;
 class Deck;
-
+class SummaryState;
+class Schedule;
+class EclipseState;
 
 /*
   This class is a thin wrapper around the PythonInterp class. The Python class
@@ -57,7 +59,7 @@ public:
     Python();
     bool exec(const std::string& python_code) const;
     bool exec(const std::string& python_code, const Parser& parser, Deck& deck) const;
-    bool exec(const PyAction& py_action) const;
+    bool exec(const PyAction& py_action, EclipseState& ecl_state, Schedule& schedule, std::size_t report_step, SummaryState& st) const;
     explicit operator bool() const;
 private:
     std::shared_ptr<PythonInterp> interp;