overloaded virtual functions

[floybix]

Hi again,

This is all working amazingly well... but I've run into a problem with a callback that has an overloaded function.

The C++ code is

class b2ContactListener
{
public:
	virtual ~b2ContactListener() {}

	virtual void BeginContact(b2Contact* contact) {}

	virtual void BeginContact(b2ParticleSystem* particleSystem,
                                  b2ParticleContact* particleContact) {}

In the presets java I do

.put(new Info("b2ContactListener").virtualize())

which results in this snippet, in the jniliquidfun.cpp file:

class JavaCPP_hidden JavaCPP__0003a_0003ab2ContactListener : public ::b2ContactListener {
public:
    jobject obj;
    static jmethodID BeginContact__Lorg_bytedeco_javacpp_liquidfun_00024b2ParticleSystem_2Lorg_bytedeco_javacpp_liquidfun_00024b2ParticleContact_2;
    static jmethodID BeginContact__Lorg_bytedeco_javacpp_liquidfun_00024b2Contact_2;

    JavaCPP__0003a_0003ab2ContactListener() : ::b2ContactListener(), obj(NULL) { }
    using ::b2ContactListener::BeginContact;
    virtual void BeginContact(::b2ParticleSystem* arg0, ::b2ParticleContact* arg1);
    void super_BeginContact(::b2ParticleSystem* arg0, ::b2ParticleContact* arg1) { ::b2ContactListener::BeginContact(arg0, arg1); }
    using ::b2ContactListener::BeginContact;
    virtual void BeginContact(::b2Contact* arg0);
    void super_BeginContact(::b2Contact* arg0) { ::b2ContactListener::BeginContact(arg0); }

This gives an error from clang++ about the repeated "using" statements:

/Users/felix/Devel/javacpp-presets/liquidfun/target/classes/org/bytedeco/javacpp/jniliquidfun.cpp:599:32: error: 
      redeclaration of using decl
    using ::b2ContactListener::BeginContact;
          ~~~~~~~~~~~~~~~~~~~~~^
/Users/felix/Devel/javacpp-presets/liquidfun/target/classes/org/bytedeco/javacpp/jniliquidfun.cpp:596:32: note: 
      previous using declaration
    using ::b2ContactListener::BeginContact;
                               ^

Any help would be appreciated.

[saudet]

That gets generated on this line:
https://github.com/bytedeco/javacpp/blob/master/src/main/java/org/bytedeco/javacpp/tools/Generator.java#L2069
So we would need to add a check for duplicate methodInfo.memberName[0] there. To fix that, I think I'd just loop over memberList, and check the first line of each see if it's not the same. I will do it later (eventually) if someone else doesn't do it for me in the meantime :)