AngelScript 2.5.0c released

Andreas Jonsson · 2006-02-17T20:00:14

AngelScript 2.5.0 has just been uploaded. This version brings a lot of improvements. The VM was updated with three-op instructions for more efficient code. The result is a much faster byte code execution, though there is still room for more improvements. The libraries support for parameter references have been revised so that it is now much closer to how C++ developers are used to, still without compromising the safety. Operator behaviours can now be written to take any type of references, including &out and &inout, this makes it possible to register types like stream classes and other advanced objects. An optional compiler mode allow application developer to allow direct references that work exactly as C++ references. In this mode however the scripts can potentially write illegal code that uses invalid references with undefined behaviour. Debugging support has been improved as well. It is now possible to enumerate local stack variables and access their values if that is necessary. [edit]Released 2.5.0a[/edit] [edit]Released 2.5.0b[/edit] [edit]Released 2.5.0c[/edit] [Edited by - WitchLord on February 17, 2006 8:00:54 PM]

AngelCode Affiliates

Started by WitchLord January 15, 2006 07:41 PM

44 comments, last by WitchLord 19 years ago

Deyja

920

January 23, 2006 05:53 PM

I'm actually registering smart pointers, and leading AngelScript to believe they are the full fledged object. In angelscript, it's just Object a; a.somemethod(); When, in fact, 'Object' happens to really be a smart pointer and doesn't have that method at all! It's amazing what kind of tricks you can pull with the binding mechanism.

Incidentally, Witchlord, will we be seeing an overloadable operator++ anytime? I'm binding iterator interfaces, and am stuck using a member function on the iterator type instead. I understand that unary operator* left with pointers; will it come back with them?

http://jemgine.omnisu.com

WitchLord

Author

4,864

January 23, 2006 07:40 PM

overloads for the ++ operators will be available, however for me they are low-priority. Should anyone want to implement them and pass the implementation to me I'd be more than happy to accept that contribution.

All the pointer operators will come back with the pointers. Including the address-of, &, operator that wasn't even available before.

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Deyja

920

January 23, 2006 08:30 PM

Quote:
overloads for the ++ operators will be available, however for me they are low-priority. Should anyone want to implement them and pass the implementation to me I'd be more than happy to accept that contribution.

I'm going to go look at that. :)

Quote:

All the pointer operators will come back with the pointers. Including the address-of, &, operator that wasn't even available before.

Does that include an operator[] that is already defined for pointer types?

http://jemgine.omnisu.com

WitchLord

Author

4,864

January 24, 2006 10:27 AM

Yes, that is the plan. The new pointers will have the same freedom as in C++, with all the dangers that comes with it. [wink]

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iram

122

January 25, 2006 05:41 AM

so before pointer is put back, i may need to use smart pointer.

but how to use it ? any hints ?

Deyja

920

January 25, 2006 05:20 PM

You can register it as a type, then write wrappers for all the methods of the pointee-type that take a pointer to the smartpointer as the this pointer. The scripts will just see an object with it's methods, while in actuallity it is a smartpointer, and the method calls indirect through the pointer, and are possibly even virtual.

Ripped right from my current project.

namespace{	std::string wrap_parm(std::string name, Database::ObjectPointer* thisp)	{		if (!*thisp) return "";		return (*thisp)->get_parameter(name).value;	}	void wrap_send(const std::string& msg, Database::ObjectPointer* thisp)	{		if (!*thisp)  return;		(*thisp)->send(msg);	}	Database::ObjectPointer& wrap_loc(Database::ObjectPointer* thisp)	{		return (*thisp)->location;	}		Database::ObjectSet& get_contents(Database::ObjectPointer* thisp)	{		return (*thisp)->contents;	}	bool good(Database::ObjectPointer* thisp)	{		return (*thisp);	}};REGISTER_COMPLETE_BASIC_TYPE("Object",Database::ObjectPointer);REGISTER_METHOD("Object","string get_parameter(string)",asFUNCTION(wrap_parm),asCALL_CDECL_OBJLAST);REGISTER_METHOD("Object","void send(const string&)",asFUNCTION(wrap_send),asCALL_CDECL_OBJLAST);REGISTER_METHOD("Object","Object& location()",asFUNCTION(wrap_loc),asCALL_CDECL_OBJLAST);REGISTER_METHOD("Object","ObjectSet& contents()",asFUNCTION(get_contents),asCALL_CDECL_OBJLAST);REGISTER_METHOD("Object","bool good()",asFUNCTION(good),asCALL_CDECL_OBJLAST);REGISTER_BEHAVIOR(asBEHAVE_EQUAL,"bool op_equal(const Object&,const Object&)",asFUNCTION((Wrap::Equal<Database::ObjectPointer,Database::ObjectPointer>)),asCALL_CDECL);REGISTER_BEHAVIOR(asBEHAVE_NOTEQUAL,"bool op_notequal(const Object&,const Object&)",asFUNCTION((Wrap::NotEqual<Database::ObjectPointer,Database::ObjectPointer>)),asCALL_CDECL);

In this example, Database::ObjectPointer is a typedef for boost::intrusive_ptr<Database::Object>.

http://jemgine.omnisu.com

Rain Dog

136

January 25, 2006 05:42 PM

what is REGISTER_COMPLETE_BASIC_TYPE?

WitchLord

Author

4,864

January 25, 2006 06:23 PM

Deyja:

Thanks for helping out. I didn't have a readily available example to show.

Rain Dog:

If I'm not mistaken REGISTER_COMPLETE_BASIC_TYPE would be a macro defined by Deyja that registers an object type and most likely the basic behaviours, such as the constructor, addref, release, and assignment operators.

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Deyja

920

January 26, 2006 06:05 AM

It doesn't really matter what it is. It just registers the default constructor, copy contrustor, destructor, and operator=.

Unfortunatly, this technigue makes it impossible to directly register member data, hence the 'contents()' member function.

http://jemgine.omnisu.com

WitchLord

Author

4,864

February 01, 2006 06:57 PM

I've released yet more bug fixes for AngelScript. Some of these fixes will also be applied to the 2.4.1 version as soon as I get the time to do so.

Thanks goes to villemon and topcatse from the GameDev.net forum for discovering a few of the bugs that have been fixed this time.

Regards,
Andreas

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