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/* File : example.i */
%module dynamic_cast
#if !defined(SWIGJAVA) && !defined(SWIGCSHARP)
%apply SWIGTYPE *DYNAMIC { Foo * };
#endif
%inline %{
class Foo {
public:
virtual ~Foo() { }
virtual Foo *blah() {
return this;
}
};
%}
#if defined(SWIGJAVA) || defined(SWIGCSHARP)
%typemap(out) Foo *blah {
Bar *downcast = dynamic_cast<Bar *>($1);
*(Bar **)&$result = downcast;
}
#endif
#if defined(SWIGJAVA)
%typemap(javaout) Foo * {
return new Bar($jnicall, $owner);
}
#endif
#if defined(SWIGCSHARP)
%typemap(csout) Foo * {
return new Bar($imcall, $owner);
}
#endif
%inline %{
class Bar : public Foo {
public:
virtual Foo *blah() {
return (Foo *) this;
}
virtual char * test() {
return (char *) "Bar::test";
}
};
char *do_test(Bar *b) {
return b->test();
}
%}
#if !defined(SWIGJAVA) && !defined(SWIGCSHARP)
// A general purpose function for dynamic casting of a Foo *
%{
static swig_type_info *
Foo_dynamic(void **ptr) {
Bar *b;
b = dynamic_cast<Bar *>((Foo *) *ptr);
if (b) {
*ptr = (void *) b;
return SWIGTYPE_p_Bar;
}
return 0;
}
%}
// Register the above casting function
DYNAMIC_CAST(SWIGTYPE_p_Foo, Foo_dynamic);
#endif
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