Rework std::initializer_list handling to warn about usage in any method, not just constructors. A typemap is used to issue the warning and can be overridden with user defined behaviour.

Examples/test-suite/common.mk

@@ -486,6 +486,7 @@ CPP0X_TEST_CASES = \
 	cpp0x_explicit_conversion_operators \
 	cpp0x_function_objects \
 	cpp0x_initializer_list \
+	cpp0x_initializer_list_extend \
 	cpp0x_lambda_functions \
 	cpp0x_null_pointer_constant \
 	cpp0x_raw_string_literals \

Examples/test-suite/cpp0x_initializer_list.i

@@ -1,22 +1,34 @@
-/* This testcase checks whether SWIG correctly uses the new initializer_list
+/* This testcase shows a few simple ways to deal with the new initializer_list
    introduced in C++0x. */
 %module cpp0x_initializer_list
-%warnfilter(SWIGWARN_LANG_INITIALIZER_LIST) A;
+
+%warnfilter(SWIGWARN_TYPEMAP_INITIALIZER_LIST) B::B;
+%ignore A::A(std::initializer_list<int>);
+%ignore B::method;
+
+%typemap(in) std::initializer_list<const char *> {
+  $1 = {"Ab", "Fab"};
+}
 
 %inline %{
 #include <initializer_list>
 
 class A {
 public:
-  A( std::initializer_list<int> ) {}
+  A(std::initializer_list<int>) {}
   A() {}
   A(double d) {}
 };
 class B {
 public:
-  B( std::initializer_list<int>, std::initializer_list<double> ) {}
+  B(std::initializer_list<int>, std::initializer_list<double>) {}
   B() {}
   void method(std::initializer_list<int> init) {}
 };
+class C {
+public:
+  C(std::initializer_list<const char *>) {}
+  C() {}
+};
 %}
 

Examples/test-suite/cpp0x_initializer_list_extend.i

@@ -0,0 +1,29 @@
+/* This testcase shows how to replace std_initializer_list with std_vector. */
+
+%module cpp0x_initializer_list_extend
+
+%ignore Container::Container(std::initializer_list<int>);
+%include <std_vector.i>
+%template(VectorInt) std::vector<int>;
+
+%extend Container {
+  Container(const std::vector<int> &elements) {
+    Container *c = new Container();
+    for (int element : elements)
+      c->push_back(element);
+    return c;
+  }
+}
+
+
+%inline %{
+#include <initializer_list>
+
+class Container {
+public:
+  Container(std::initializer_list<int>) {}
+  Container() {}
+  void push_back(const int&) {}
+};
+%}
+

Examples/test-suite/python/cpp0x_initializer_list_extend_runme.py

@@ -0,0 +1,4 @@
+import cpp0x_initializer_list_extend
+
+c = cpp0x_initializer_list_extend.Container( [10, 20, 30, 40] )
+