Lib/java/std_unique_ptr.i


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/* -----------------------------------------------------------------------------
 * std_unique_ptr.i
 *
 * The typemaps here allow handling functions returning std::unique_ptr<>,
 * which is the most common use of this type. If you have functions taking it
 * as parameter, these typemaps can't be used for them and you need to do
 * something else (e.g. use shared_ptr<> which SWIG supports fully).
 * ----------------------------------------------------------------------------- */

%define %unique_ptr(TYPE)
%typemap (jni) std::unique_ptr< TYPE > "jlong"
%typemap (jtype) std::unique_ptr< TYPE > "long"
%typemap (jstype) std::unique_ptr< TYPE > "$typemap(jstype, TYPE)"

%typemap (out) std::unique_ptr< TYPE > %{
   jlong lpp = 0;
   *(TYPE **) &lpp = $1.release();
   $result = lpp;
%}
%typemap(javaout) std::unique_ptr< TYPE > {
     long cPtr = $jnicall;
     return (cPtr == 0) ? null : new $typemap(jstype, TYPE)(cPtr, true);
   }
%template() std::unique_ptr< TYPE >;
%enddef

namespace std {
   template <class T> class unique_ptr {};
}