Additions to %types so that a user can specify the code to go into the casting / conversion function

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10223 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/common.mk

@@ -244,6 +244,7 @@ CPP_TEST_CASES += \
 	smart_pointer_protected \
 	smart_pointer_rename \
 	smart_pointer_templatemethods \
+	smart_pointer_templatevariables \
 	smart_pointer_simple \
 	smart_pointer_static \
 	smart_pointer_typedef \
@@ -331,6 +332,7 @@ CPP_TEST_CASES += \
 	typemap_variables \
 	typemap_various \
 	typename \
+	types_directive \
 	union_scope \
 	using1 \
 	using2 \

Examples/test-suite/python/types_directive_runme.py

@@ -0,0 +1,12 @@
+from types_directive import *
+
+d1 = Time1(2001, 2, 3, 60)
+newDate = add(d1, 7) # check that a Time1 instance is accepted where Date is expected
+if newDate.day != 10:
+  raise RuntimeError
+
+d2 = Time2(1999, 8, 7, 60)
+newDate = add(d2, 7) # check that a Time2 instance is accepted where Date is expected
+if newDate.day != 14:
+  raise RuntimeError
+

Examples/test-suite/types_directive.i

@@ -0,0 +1,46 @@
+%module types_directive
+
+%ignore Time2::operator Date *;
+
+%inline %{
+struct Date {
+  Date(unsigned int year, unsigned int month, unsigned int day) : year(year), month(month), day(day) {}
+  unsigned int year;
+  unsigned int month;
+  unsigned int day;
+};
+
+struct Time1 {
+  Time1(unsigned int year, unsigned int month, unsigned int day, unsigned int seconds) : date(year, month, day), seconds(seconds) {}
+  Date &dateFromTime() {
+    return date;
+  }
+  Date date;
+  unsigned int seconds;
+};
+
+struct Time2 {
+  Time2(unsigned int year, unsigned int month, unsigned int day, unsigned int seconds) : date(year, month, day), seconds(seconds) {}
+  operator Date *() {
+    return &date;
+  }
+  Date date;
+  unsigned int seconds;
+};
+Date add(const Date &date, unsigned int days) {
+  Date newDate = date;
+  newDate.day += days;
+  return newDate;
+}
+%}
+
+// allow conversion from Date -> Time1 using the following code
+%types(Time1 = Date) %{
+  Time1 *t = (Time1 *)$from;
+  Date &d = t->dateFromTime();
+  return (void *) &d;
+%}
+
+// allow conversion from Date -> Time2 using conversion operator (cast) in Time2
+%types(Time2 = Date);
+