Adding srpc example to naclports.

examples/srpc/duality/scriptable.h

+// Copyright 2010 The Native Client SDK Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#ifndef EXAMPLES_SRPC_DUALITY_SCRIPTABLE_H_
+#define EXAMPLES_SRPC_DUALITY_SCRIPTABLE_H_
+
+
+#include <string.h>
+
+#include <nacl/nacl_npapi.h>
+
+#include <map>
+
+// Extend this class and add object-specific functions and properties to the
+// method table and property table.
+class Scriptable {
+ public:
+  Scriptable();
+  virtual ~Scriptable();
+
+  // Ensures that members are initialized.
+  virtual void Init();
+
+  bool GetProperty(NPIdentifier name, NPVariant *result);
+
+  bool HasMethod(NPIdentifier name) const;
+
+  bool HasProperty(NPIdentifier name) const;
+
+  bool Invoke(NPIdentifier method_name,
+              const NPVariant* args,
+              uint32_t arg_count,
+              NPVariant* result);
+
+  bool InvokeDefault(const NPVariant* args,
+                     uint32_t arg_count,
+                     NPVariant* result);
+
+  bool RemoveProperty(NPIdentifier name);
+
+  bool SetProperty(NPIdentifier name, const NPVariant* value);
+
+ protected:
+  // These can't be scriptable::functions because that would make this
+  // uninheritable.
+  typedef bool (*Method)(Scriptable* instance,
+                         const NPVariant* args,
+                         uint32_t arg_count,
+                         NPVariant* result);
+  typedef bool (*Property)(Scriptable* instance,
+                           NPVariant* result);
+
+  typedef std::map<NPIdentifier, Method> IdentifierToMethodMap;
+  typedef std::map<NPIdentifier, Property> IdentifierToPropertyMap;
+
+  // Implemented by the final class.
+  virtual void InitializeMethodTable() = 0;
+  // Implemented by the final class.
+  virtual void InitializePropertyTable() = 0;
+
+  IdentifierToMethodMap * method_table_;
+  IdentifierToPropertyMap * property_table_;
+};
+
+#endif  // EXAMPLES_SRPC_DUALITY_SCRIPTABLE_H_