Added support for the D programming languge.

It is still a bit rough around some edges, particularly with regard to multi-threading and operator overloading, and there are some documentation bits missing, but it should be fine for basic use.

The test-suite should build and run fine with the current versions of DMD, LDC and Tango (at least) on Linux x86_64 and Mac OS X 10.6.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12299 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/d/director_basic_runme.1.d

@@ -0,0 +1,59 @@
+module director_basic_runme;
+
+import director_basic.A1;
+import director_basic.Bar;
+import director_basic.Foo;
+import director_basic.MyClass;
+
+void main() {
+  auto a = new director_basic_MyFoo();
+  if (a.ping() != "director_basic_MyFoo::ping()") {
+    throw new Exception("a.ping()");
+  }
+  if (a.pong() != "Foo::pong();director_basic_MyFoo::ping()") {
+    throw new Exception("a.pong()");
+  }
+
+  auto b = new Foo();
+  if (b.ping() != "Foo::ping()") {
+    throw new Exception("b.ping()");
+  }
+  if (b.pong() != "Foo::pong();Foo::ping()") {
+    throw new Exception("b.pong()");
+  }
+
+  {
+    scope a1 = new A1(1, false);
+  }
+
+  {
+    auto my = new MyOverriddenClass();
+
+    my.expectNull = true;
+    if (MyClass.call_pmethod(my, null) !is null)
+      throw new Exception("null pointer conversion problem");
+
+    auto myBar = new Bar();
+    my.expectNull = false;
+    auto myNewBar = MyClass.call_pmethod(my, myBar);
+    if (myNewBar is null)
+      throw new Exception("non-null pointer conversion problem");
+    myNewBar.x = 10;
+  }
+}
+
+class director_basic_MyFoo : Foo {
+  public override char[] ping() {
+    return "director_basic_MyFoo::ping()";
+  }
+}
+
+class MyOverriddenClass : MyClass {
+  public bool expectNull = false;
+  public bool nonNullReceived = false;
+  public override Bar pmethod(Bar b) {
+    if (expectNull && (b !is null))
+      throw new Exception("null not received as expected");
+    return b;
+  }
+}