add the factory library for UTL

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@8865 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/li_factory.i

@@ -0,0 +1,37 @@
+%module li_factory
+%include factory.i
+
+%newobject Geometry::create;
+%factory(Geometry *Geometry::create, Point, Circle);
+
+%inline {
+  struct Geometry {
+    enum GeomType{
+      POINT,
+      CIRCLE
+    };
+    
+    virtual ~Geometry() {}    
+    virtual int draw() = 0;
+    static Geometry *create(GeomType i);
+  };
+
+  struct Point : Geometry  {
+    int draw() { return 1; }
+    double width() { return 1.0; }    
+  };
+
+  struct Circle : Geometry  {
+    int draw() { return 2; }
+    double radius() { return 1.5; }      
+  }; 
+
+  Geometry *Geometry::create(GeomType type) {
+    switch (type) {
+    case POINT: return new Point();
+    case CIRCLE: return new Circle(); 
+    default: return 0;
+    }
+  }
+}
+

Examples/test-suite/python/Makefile.in

@@ -31,6 +31,7 @@ CPP_TEST_CASES += \
 	kwargs \
 	li_cstring \
 	li_cwstring \
+	li_factory \
 	li_implicit \
 	li_std_vectora \
 	li_std_map \

Examples/test-suite/python/li_factory_runme.py

@@ -0,0 +1,11 @@
+from li_factory import *
+
+circle = Geometry.create(Geometry.CIRCLE)
+r = circle.radius()
+if (r != 1.5):
+    raise RuntimeError
+
+point = Geometry.create(Geometry.POINT)
+w = point.width()
+if (w != 1.0):
+    raise RuntimeError