To illustrate a hxcpp bug.

Main.cpp

#include <hxcpp.h>

#ifndef INCLUDED_A
#include <A.h>
#endif
#ifndef INCLUDED_Main
#include <Main.h>
#endif
#ifndef INCLUDED_haxe_Log
#include <haxe/Log.h>
#endif

Void Main_obj::__construct()
{
	return null();
}

Main_obj::~Main_obj() { }

Dynamic Main_obj::__CreateEmpty() { return  new Main_obj; }
hx::ObjectPtr< Main_obj > Main_obj::__new()
{  hx::ObjectPtr< Main_obj > result = new Main_obj();
	result->__construct();
	return result;}

Dynamic Main_obj::__Create(hx::DynamicArray inArgs)
{  hx::ObjectPtr< Main_obj > result = new Main_obj();
	result->__construct();
	return result;}

Void Main_obj::main( ){
{
		__SAFE_POINT

		HX_BEGIN_LOCAL_FUNC0(_Function_1_1)
		Void run(){
{
				__SAFE_POINT
				struct _Function_2_1{
					inline static Dynamic Block( ){
						hx::Anon __result = hx::Anon_obj::Create();
						__result->Add(HX_STRING(L"fileName",8) , HX_STRING(L"Main.hx",7));
						__result->Add(HX_STRING(L"lineNumber",10) , 11);
						__result->Add(HX_STRING(L"className",9) , HX_STRING(L"Main",4));
						__result->Add(HX_STRING(L"methodName",10) , HX_STRING(L"main",4));
						return __result;
					}
				};
				::haxe::Log_obj::trace(HX_STRING(L"f2",2),_Function_2_1::Block());
			}
			return null();
		}
		HX_END_LOCAL_FUNC0((void))


		HX_BEGIN_LOCAL_FUNC0(_Function_1_2)
		Void run(){
{
				__SAFE_POINT
				struct _Function_2_1{
					inline static Dynamic Block( ){
						hx::Anon __result = hx::Anon_obj::Create();
						__result->Add(HX_STRING(L"fileName",8) , HX_STRING(L"Main.hx",7));
						__result->Add(HX_STRING(L"lineNumber",10) , 10);
						__result->Add(HX_STRING(L"className",9) , HX_STRING(L"Main",4));
						__result->Add(HX_STRING(L"methodName",10) , HX_STRING(L"main",4));
						return __result;
					}
				};
				::haxe::Log_obj::trace(HX_STRING(L"f1",2),_Function_2_1::Block());
			}
			return null();
		}
		HX_END_LOCAL_FUNC0((void))

		::A_obj::__new()->callFunction( Dynamic(new _Function_1_1()))->callFunction( Dynamic(new _Function_1_2()));
	}
return null();
}


STATIC_HX_DEFINE_DYNAMIC_FUNC0(Main_obj,main,(void))


Main_obj::Main_obj()
{
}

void Main_obj::__Mark()
{
}

Dynamic Main_obj::__Field(const ::String &inName)
{
	switch(inName.length) {
	case 4:
		if (!memcmp(inName.__s,L"main",sizeof(wchar_t)*4) ) { return main_dyn(); }
	}
	return super::__Field(inName);
}

Dynamic Main_obj::__SetField(const ::String &inName,const Dynamic &inValue)
{
	return super::__SetField(inName,inValue);
}

void Main_obj::__GetFields(Array< ::String> &outFields)
{
	super::__GetFields(outFields);
};

static ::String sStaticFields[] = {
	HX_STRING(L"main",4),
	String(null()) };

static ::String sMemberFields[] = {
	String(null()) };

static void sMarkStatics() {
};

Class Main_obj::__mClass;

void Main_obj::__register()
{
	Static(__mClass) = hx::RegisterClass(HX_STRING(L"Main",4), hx::TCanCast< Main_obj> ,sStaticFields,sMemberFields,
	&__CreateEmpty, &__Create,
	&super::__SGetClass(), 0, sMarkStatics);
}

void Main_obj::__boot()
{
}

Main.hx

class A {
	public function new() {}
	public function callFunction(func:Void->Void):A { func(); return this; }
}

class Main{
	
	static function main() {
		new A()
			.callFunction(function(){trace("f1");})
			.callFunction(function(){trace("f2");});
	}
}

The following code will produce correct output, tested on windows with msvc 2005:

class A {
    public function new() {}
    public function callFunction(func:Void->Void):A { func(); return this; }
}

class Main{

    static function main() {
        var f1 = function() { trace("f1"); };
        var f2 = function() { trace("f2"); };
        new A()
            .callFunction(f1)
            .callFunction(f2);
    }
}