1 files changed, 100 insertions, 0 deletions
diff --git a/contrib/moses2/FF/SkeletonStatefulFF.cpp b/contrib/moses2/FF/SkeletonStatefulFF.cpp
new file mode 100644
index 000000000..d159794f0
--- /dev/null
+++ b/contrib/moses2/FF/SkeletonStatefulFF.cpp
@@ -0,0 +1,100 @@
+/*
+ * SkeletonStatefulFF.cpp
+ *
+ *  Created on: 27 Oct 2015
+ *      Author: hieu
+ */
+#include <sstream>
+#include "SkeletonStatefulFF.h"
+#include "../PhraseBased/Manager.h"
+#include "../PhraseBased/Hypothesis.h"
+
+using namespace std;
+
+namespace Moses2
+{
+
+class SkeletonState: public FFState
+{
+public:
+  int targetLen;
+
+  SkeletonState()
+  {
+    // uninitialised
+  }
+
+  virtual size_t hash() const
+  {
+    return (size_t) targetLen;
+  }
+  virtual bool operator==(const FFState& o) const
+  {
+    const SkeletonState& other = static_cast<const SkeletonState&>(o);
+    return targetLen == other.targetLen;
+  }
+
+  virtual std::string ToString() const
+  {
+    stringstream sb;
+    sb << targetLen;
+    return sb.str();
+  }
+
+};
+
+////////////////////////////////////////////////////////////////////////////////////////
+SkeletonStatefulFF::SkeletonStatefulFF(size_t startInd, const std::string &line) :
+    StatefulFeatureFunction(startInd, line)
+{
+  ReadParameters();
+}
+
+SkeletonStatefulFF::~SkeletonStatefulFF()
+{
+  // TODO Auto-generated destructor stub
+}
+
+FFState* SkeletonStatefulFF::BlankState(MemPool &pool, const System &sys) const
+{
+  return new (pool.Allocate<SkeletonState>()) SkeletonState();
+}
+
+void SkeletonStatefulFF::EmptyHypothesisState(FFState &state,
+    const ManagerBase &mgr, const InputType &input,
+    const Hypothesis &hypo) const
+{
+  SkeletonState &stateCast = static_cast<SkeletonState&>(state);
+  stateCast.targetLen = 0;
+}
+
+void SkeletonStatefulFF::EvaluateInIsolation(MemPool &pool,
+    const System &system, const Phrase<Moses2::Word> &source,
+    const TargetPhraseImpl &targetPhrase, Scores &scores,
+    SCORE &estimatedScore) const
+{
+}
+
+void SkeletonStatefulFF::EvaluateInIsolation(MemPool &pool, const System &system, const Phrase<SCFG::Word> &source,
+    const TargetPhrase<SCFG::Word> &targetPhrase, Scores &scores,
+    SCORE &estimatedScore) const
+{
+}
+
+void SkeletonStatefulFF::EvaluateWhenApplied(const ManagerBase &mgr,
+    const Hypothesis &hypo, const FFState &prevState, Scores &scores,
+    FFState &state) const
+{
+  SkeletonState &stateCast = static_cast<SkeletonState&>(state);
+  stateCast.targetLen = hypo.GetTargetPhrase().GetSize();
+}
+
+void SkeletonStatefulFF::EvaluateWhenApplied(const SCFG::Manager &mgr,
+    const SCFG::Hypothesis &hypo, int featureID, Scores &scores,
+    FFState &state) const
+{
+  UTIL_THROW2("Not implemented");
+}
+
+}
+