Add %proxycode directive for adding code into proxy classes for C#, D and Java

Examples/test-suite/proxycode.i

@@ -0,0 +1,141 @@
+%module proxycode
+
+%warnfilter(SWIGWARN_PARSE_NAMED_NESTED_CLASS) Proxy4::Proxy4Nested;
+
+#if defined(SWIGJAVA) || defined(SWIGCSHARP) || defined(SWIGD)
+
+%{
+struct Proxy1 {};
+%}
+struct Proxy1 {
+%proxycode %{
+  public int proxycode1(int i) {
+    return i+1;
+  }
+%}
+};
+
+%proxycode %{
+  this should be ignored as it is not in scope of a class
+%}
+
+%extend Proxy2 {
+%proxycode %{
+  public int proxycode2a(int i) {
+    return i+2;
+  }
+%}
+}
+
+%extend Proxy2 {
+%proxycode %{
+  public int proxycode2b(int i) {
+    return i+2;
+  }
+%}
+}
+
+%inline %{
+struct Proxy2 {};
+struct Proxy3 {};
+struct Proxy4 {
+  struct Proxy4Nested {};
+};
+%}
+
+%extend Proxy3 {
+%proxycode %{
+  public int proxycode3(int i) {
+    return i+3;
+  }
+%}
+}
+
+%extend Proxy4 {
+%proxycode %{
+  public int proxycode4(int i) {
+    return i+4;
+  }
+%}
+}
+%extend Proxy4::Proxy4Nested {
+%proxycode %{
+  public int proxycode4nested(int i) {
+    return i+44;
+  }
+%}
+}
+
+%extend TemplateProxy {
+%proxycode %{
+  public T proxycode5(T i) {
+    return i;
+  }
+%}
+}
+
+%extend TemplateProxy<int> {
+%proxycode %{
+  public int proxycode5(int i, int j) {
+    return i+j+55;
+  }
+%}
+}
+
+%inline %{
+template <typename T> struct TemplateProxy {};
+%}
+
+%template(Proxy5a) TemplateProxy<short>;
+%template(Proxy5b) TemplateProxy<int>;
+
+%inline %{
+template <typename T> struct TypemapProxy {
+  T useT(T t1, T const& t2) {
+    return t1+t2;
+  }
+};
+%}
+
+%extend TypemapProxy {
+#if defined(SWIGJAVA)
+%proxycode %{
+  public $javaclassname proxyUseT(long t1,  long t2) {
+    $typemap(jstype, unsigned int) tt1 = t1;
+    $typemap(jstype, unsigned int const&) tt2 = t2;
+    long ret = useT(tt1, tt2);
+    if (ret != t1+t2)
+      throw new RuntimeException("wrong sum");
+    return this;
+  }
+%}
+#elif defined(SWIGCSHARP)
+%proxycode %{
+  public $csclassname proxyUseT(uint t1,  uint t2) {
+    $typemap(cstype, unsigned int) tt1 = t1;
+    $typemap(cstype, unsigned int const&) tt2 = t2;
+    uint ret = useT(tt1, tt2);
+    if (ret != t1+t2)
+      throw new System.Exception("wrong sum");
+    return this;
+  }
+%}
+#elif defined(SWIGD)
+%proxycode %{
+  public $dclassname proxyUseT(uint t1,  uint t2) {
+    $typemap(dtype, unsigned int) tt1 = t1;
+    $typemap(dtype, unsigned int const&) tt2 = t2;
+    uint ret = useT(tt1, tt2);
+    if (ret != t1+t2)
+      throw new Exception("wrong sum");
+    return this;
+  }
+%}
+#else
+#error "missing test"
+#endif
+}
+
+%template(Proxy6) TypemapProxy<unsigned int>;
+
+#endif