What compiler are you using?
In the test framework I have a test for multiple inheritance already (testmultipleinheritance.cpp). It should have covered this scenario, but I'll try recreate your problem to see if there is a difference.
Passing script objects as base pointers?
January 19, 2009 04:15 PM
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January 19, 2009 04:39 PM
MinGW GCC 4.3.x (.5 i think? i'm not at home right now so I can't check for sure)
Also, that proxy function is declared virtual, if that makes any difference.
Maybe it has something to do with multiple-inheritance with an implicit cast? idk.
Also, that proxy function is declared virtual, if that makes any difference.
Maybe it has something to do with multiple-inheritance with an implicit cast? idk.
January 19, 2009 04:48 PM
I've written the following test based on the info you gave me. On MSVC it doesn't have any problems, but perhaps on MinGW it reproduces the problem you're having. Would you mind giving it a try?
bool addOverlayCalled = false;class Drawable {private: int somestuff;protected: int somethingElse;public: Drawable( ) {} virtual ~Drawable() {} virtual void addOverlay( ) { addOverlayCalled = true; }};class Creep {private: int somestuffOfMine;protected: int duh;public: Creep() {} virtual ~Creep() {}};class CreepClient : public Creep, public Drawable {private:protected:public: CreepClient( ) {} virtual ~CreepClient() {}};void Dummy() {}bool Exec(asIScriptEngine *engine, Creep &c){ bool fail = false; CreepClient &cc = dynamic_cast<CreepClient&>(c); asIScriptModule *mod = engine->GetModule("mod"); int funcId = mod->GetFunctionIdByIndex(0); asIScriptContext *ctx = engine->CreateContext(); ctx->Prepare(funcId); ctx->SetArgObject(0, &cc); int r = ctx->Execute(); if( r != asEXECUTION_FINISHED ) { fail = true; } ctx->Release(); return fail;}bool TestMultipleInheritance2(){ bool fail = false; int r; asIScriptEngine *engine = asCreateScriptEngine(ANGELSCRIPT_VERSION); r = engine->RegisterObjectType("CreepClient", sizeof(CreepClient), asOBJ_REF ); assert( r >= 0 ); r = engine->RegisterObjectBehaviour("CreepClient", asBEHAVE_ADDREF, "void f()", asFUNCTION(Dummy), asCALL_CDECL_OBJFIRST); assert( r >= 0 ); r = engine->RegisterObjectBehaviour("CreepClient", asBEHAVE_RELEASE, "void f()", asFUNCTION(Dummy), asCALL_CDECL_OBJFIRST); assert( r >= 0 ); r = engine->RegisterObjectMethod("CreepClient", "void addOverlay( )", asMETHOD(CreepClient, addOverlay), asCALL_THISCALL); assert( r >= 0 ); const char *script = "void fireEffects( CreepClient@ c ) { \n" " c.addOverlay( ); // This one doesn't ever fire off \n" "} \n"; asIScriptModule *mod = engine->GetModule("mod", asGM_ALWAYS_CREATE); mod->AddScriptSection("script", script); r = mod->Build(); if( r < 0 ) { fail = true; } CreepClient cc; fail = Exec(engine, cc) || fail; if( addOverlayCalled == false ) fail = true; engine->Release(); return fail;}
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January 19, 2009 09:14 PM
Ok I compiled and tested the code as such:
and it fails. I tested it with MinGW on both GCC 4.x and 3.x.
#include <iostream>#include <assert.h>#include "angelscript.h"using namespace std;{ // Your code here}int main() { if( TestMultipleInheritance2() ) cout << "Success!" << endl; else cout << "FAIL" << endl;}and it fails. I tested it with MinGW on both GCC 4.x and 3.x.
January 21, 2009 06:26 PM
Any ideas?
January 21, 2009 06:51 PM
I've haven't had the time to look into this yet. But if I can reproduce it once I install MinGW it ought to quite simple to fix.
AngelCode.com - game development and more - Reference DB - game developer references
AngelScript - free scripting library - BMFont - free bitmap font generator - Tower - free puzzle game
January 21, 2009 09:42 PM
Cool, If you download Code::Blocks, the MinGW GCC 3.x it ships with should produce it for you:
http://prdownload.berlios.de/codeblocks/codeblocks-8.02mingw-setup.exe
http://prdownload.berlios.de/codeblocks/codeblocks-8.02mingw-setup.exe
January 22, 2009 08:33 AM
Thanks for the tip. The visual debugger in Code::Blocks ought to help a great deal when fixing the bug as well.
AngelCode.com - game development and more - Reference DB - game developer references
AngelScript - free scripting library - BMFont - free bitmap font generator - Tower - free puzzle game
January 25, 2009 12:05 PM
I downloaded Code::Blocks as you recommended, but unfortunately the problem you're having isn't reproducable. The test I wrote above works without a problem.
I just noticed that you were running the test slightly wrong. The function TestMultipleInheritance2() returns 'true' if it fails, but in your test you interpret 'true' as success. So I guess this means that my test didn't reproduce the problem on your setup either.
However, downloading Code::Blocks with MinGW wasn't fruitless. There were plenty of other bugs that showed up for MinGW/Win32. I've fixed them now, so you may want to download the new version from the SVN. Perhaps some of the bugs I fixed was also the cause for the problem you were having.
I just noticed that you were running the test slightly wrong. The function TestMultipleInheritance2() returns 'true' if it fails, but in your test you interpret 'true' as success. So I guess this means that my test didn't reproduce the problem on your setup either.
However, downloading Code::Blocks with MinGW wasn't fruitless. There were plenty of other bugs that showed up for MinGW/Win32. I've fixed them now, so you may want to download the new version from the SVN. Perhaps some of the bugs I fixed was also the cause for the problem you were having.
AngelCode.com - game development and more - Reference DB - game developer references
AngelScript - free scripting library - BMFont - free bitmap font generator - Tower - free puzzle game
January 25, 2009 12:48 PM
aahh crap, sorry for the false positive, I wounder what is going on in my app then.
I updated to the SVN version and recompiled everything, but still no go.
Any tips on how to begin debugging the script?
I updated to the SVN version and recompiled everything, but still no go.
Any tips on how to begin debugging the script?
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