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swig/Lib/python/pystdcommon.swg

+%fragment("StdTraits","header",fragment="StdTraitsCommon")
+{
+namespace swig {  
+  /*
+    Traits that provides the from method
+  */
+  template <class Type> struct traits_from_ptr {
+    static PyObject *from(Type *val, int owner = 0) {
+      return SWIG_NewPointerObj(val, type_info<Type>(), owner);
+    }
+  };
+
+  template <class Type> struct traits_from {
+    static PyObject *from(const Type& val) {
+      return traits_from_ptr<Type>::from(new Type(val), 1);
+    }
+  };
+
+  template <class Type> struct traits_from<Type *> {
+    static PyObject *from(Type* val) {
+      return traits_from_ptr<Type>::from(val, 0);
+    }
+  };
+
+  template <class Type> struct traits_from<const Type *> {
+    static PyObject *from(const Type* val) {
+      return traits_from_ptr<Type>::from(const_cast<Type*>(val), 0);
+    }
+  };
+
+
+  template <class Type>
+  inline PyObject *from(const Type& val) {
+    return traits_from<Type>::from(val);
+  }
+
+  template <class Type>
+  inline PyObject *from_ptr(Type* val, int owner) {
+    return traits_from_ptr<Type>::from(val, owner);
+  }
+
+  /*
+    Traits that provides the asval/as/check method
+  */
+  template <class Type>
+  struct traits_asptr {   
+    static int asptr(PyObject *obj, Type **val) {
+      Type *p;
+      int res = SWIG_ConvertPtr(obj, (void**)&p, type_info<Type>(), 0);
+      if (SWIG_IsOK(res)) {
+        if (val) *val = p;
+      }
+      return res;
+    }
+  }; 
+
+  template <class Type>
+  inline int asptr(PyObject *obj, Type **vptr) {
+    return traits_asptr<Type>::asptr(obj, vptr);
+  }
+
+  template <class Type> 
+  struct traits_asval {
+    static int asval(PyObject *obj, Type *val) {
+      if (val) {
+        Type *p = 0;
+        int res = traits_asptr<Type>::asptr(obj, &p);
+        if (!SWIG_IsOK(res)) return res;        
+        if (p) {
+          typedef typename noconst_traits<Type>::noconst_type noconst_type;
+          *(const_cast<noconst_type*>(val)) = *p;
+          if (SWIG_IsNewObj(res)){
+            %delete(p);
+            res = SWIG_DelNewMask(res);
+          }
+          return res;
+        } else {
+          return SWIG_ERROR;
+        }
+      } else {
+        return traits_asptr<Type>::asptr(obj, (Type **)(0));
+      }
+    }
+  };
+
+  template <class Type> struct traits_asval<Type*> {
+    static int asval(PyObject *obj, Type **val) {
+      if (val) {
+        typedef typename noconst_traits<Type>::noconst_type noconst_type;
+        noconst_type *p = 0;
+        int res = traits_asptr<noconst_type>::asptr(obj,  &p);
+        if (SWIG_IsOK(res)) {
+          *(const_cast<noconst_type**>(val)) = p;
+        }
+        return res;
+      } else {
+        return traits_asptr<Type>::asptr(obj, (Type **)(0));
+      }
+    }
+  };
+  
+  template <class Type>
+  inline int asval(PyObject *obj, Type *val) {
+    return traits_asval<Type>::asval(obj, val);
+  }
+
+  template <class Type> 
+  struct traits_as<Type, value_category> {
+    static Type as(PyObject *obj, bool throw_error) {
+      Type v;
+      int res = asval(obj, &v);
+      if (!obj || !SWIG_IsOK(res)) {
+        if (!PyErr_Occurred()) {
+          ::%type_error(swig::type_name<Type>());
+        }
+        if (throw_error) throw std::invalid_argument("bad type");
+      }
+      return v;
+    }
+  };
+
+  template <class Type> 
+  struct traits_as<Type, pointer_category> {
+    static Type as(PyObject *obj, bool throw_error) {
+      Type *v = 0;      
+      int res = (obj ? traits_asptr<Type>::asptr(obj, &v) : SWIG_ERROR);
+      if (SWIG_IsOK(res) && v) {
+        if (SWIG_IsNewObj(res)) {
+          Type r(*v);
+          %delete(v);
+          return r;
+        } else {
+          return *v;
+        }
+      } else {
+        // Uninitialized return value, no Type() constructor required.
+        static Type *v_def = (Type*) malloc(sizeof(Type));
+        if (!PyErr_Occurred()) {
+          %type_error(swig::type_name<Type>());
+        }
+        if (throw_error) throw std::invalid_argument("bad type");
+        memset(v_def,0,sizeof(Type));
+        return *v_def;
+      }
+    }
+  };
+
+  template <class Type> 
+  struct traits_as<Type*, pointer_category> {
+    static Type* as(PyObject *obj, bool throw_error) {
+      Type *v = 0;      
+      int res = (obj ? traits_asptr<Type>::asptr(obj, &v) : SWIG_ERROR);
+      if (SWIG_IsOK(res)) {
+        return v;
+      } else {
+        if (!PyErr_Occurred()) {
+          %type_error(swig::type_name<Type>());
+        }
+        if (throw_error) throw std::invalid_argument("bad type");
+        return 0;
+      }
+    }
+  };
+    
+  template <class Type>
+  inline Type as(PyObject *obj, bool te = false) {
+    return traits_as<Type, typename traits<Type>::category>::as(obj, te);
+  }
+
+  template <class Type> 
+  struct traits_check<Type, value_category> {
+    static bool check(PyObject *obj) {
+      int res = obj ? asval(obj, (Type *)(0)) : SWIG_ERROR;
+      return SWIG_IsOK(res) ? true : false;
+    }
+  };
+
+  template <class Type> 
+  struct traits_check<Type, pointer_category> {
+    static bool check(PyObject *obj) {
+      int res = obj ? asptr(obj, (Type **)(0)) : SWIG_ERROR;
+      return SWIG_IsOK(res) ? true : false;
+    }
+  };
+
+  template <class Type>
+  inline bool check(PyObject *obj) {
+    return traits_check<Type, typename traits<Type>::category>::check(obj);
+  }
+}
+}
+
+//
+// Backward compatibility
+//
+
+#ifdef SWIG_PYTHON_BACKWARD_COMP
+%{
+#include <string>
+                                                                              
+PyObject* SwigInt_FromBool(bool b) {
+    return PyInt_FromLong(b ? 1L : 0L);
+}
+double SwigNumber_Check(PyObject* o) {
+    return PyFloat_Check(o) || PyInt_Check(o) || PyLong_Check(o);
+}
+double SwigNumber_AsDouble(PyObject* o) {
+    return PyFloat_Check(o) ? PyFloat_AsDouble(o)
+        : (PyInt_Check(o) ?   double(PyInt_AsLong(o))
+                            : double(PyLong_AsLong(o)));
+}
+PyObject* SwigString_FromString(const std::string& s) {
+    return PyString_FromStringAndSize(s.data(),s.size());
+}
+std::string SwigString_AsString(PyObject* o) {
+    return std::string(PyString_AsString(o));
+}
+%}
+
+#endif
+
+
+%define %specialize_std_container(Type,Check,As,From)
+%{
+namespace swig {
+  template <>  struct traits_asval<Type > {   
+    typedef Type value_type;
+    static int asval(PyObject *obj, value_type *val) {
+      if (Check(obj)) {
+        if (val) *val = As(obj);
+        return SWIG_OK;
+      }
+      return SWIG_ERROR;
+    }
+  };
+  template <>  struct traits_from<Type > {
+    typedef Type value_type;
+    static PyObject *from(const value_type& val) {
+      return From(val);
+    }
+  };
+
+  template <> 
+  struct traits_check<Type, value_category> {
+    static int check(PyObject *obj) {
+      int res = Check(obj);
+      return obj && res ? res : 0;
+    }
+  };
+}
+%}
+%enddef
+
+
+#define specialize_std_vector(Type,Check,As,From) %specialize_std_container(%arg(Type),Check,As,From)
+#define specialize_std_list(Type,Check,As,From) %specialize_std_container(%arg(Type),Check,As,From)
+#define specialize_std_deque(Type,Check,As,From) %specialize_std_container(%arg(Type),Check,As,From)
+#define specialize_std_set(Type,Check,As,From) %specialize_std_container(%arg(Type),Check,As,From)
+#define specialize_std_multiset(Type,Check,As,From) %specialize_std_container(%arg(Type),Check,As,From)