Provide SWIGTYPE MOVE typemaps in swigmove.i

For implementing full move semantics when passing parameters by value.
Based on SWIGTYPE && and std::unique_ptr typemaps which implement move
semantics.

Added for all languages, but untested for: Go, Ocaml, R, Scilab (and
unlikely to be fully functional for same reasons as for std::unique_ptr
support).

Issue #999

1 files changed, 16 insertions, 0 deletions

diff --git a/Lib/java/swigmove.i b/Lib/java/swigmove.i
new file mode 100644
index 000000000..671b988af
--- /dev/null
+++ b/Lib/java/swigmove.i
@@ -0,0 +1,16 @@
+/* -----------------------------------------------------------------------------
+ * swigmove.i
+ *
+ * Input typemaps library for implementing full move semantics when passing
+ * parameters by value.
+ * ----------------------------------------------------------------------------- */
+
+%typemap(in) SWIGTYPE MOVE ($&1_type argp)
+%{ argp = *($&1_ltype*)&$input; 
+   if (!argp) {
+     SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "Attempt to dereference null $1_type");
+     return $null;
+   }
+  SwigValueWrapper< $1_ltype >::reset($1, argp); %}
+
+%typemap(javain) SWIGTYPE MOVE "$&javaclassname.swigRelease($javainput)"