Function ScriptObjectCopyFactory

sdk/angelscript/source/as_scriptobject.cpp:126–210

This helper function will call the copy factory, that is a script function TODO: Clean up: This function is almost identical to ScriptObjectFactory. Should make better use of the identical code.

// This helper function will call the copy factory, that is a script function
// TODO: Clean up: This function is almost identical to ScriptObjectFactory. Should make better use of the identical code.
asIScriptObject *ScriptObjectCopyFactory(const asCObjectType *objType, void *origObj, asCScriptEngine *engine)
{
	asIScriptContext *ctx = 0;
	int r = 0;
	bool isNested = false;

	// Use nested call in the context if there is an active context
	ctx = asGetActiveContext();
	if (ctx)
	{
		// It may not always be possible to reuse the current context, 
		// in which case we'll have to create a new one any way.
		if (ctx->GetEngine() == objType->GetEngine() && ctx->PushState() == asSUCCESS)
			isNested = true;
		else
			ctx = 0;
	}

	if (ctx == 0)
	{
		// Request a context from the engine
		ctx = engine->RequestContext();
		if (ctx == 0)
		{
			// TODO: How to best report this failure?
			return 0;
		}
	}

	r = ctx->Prepare(engine->scriptFunctions[objType->beh.copyfactory]);
	if (r < 0)
	{
		if (isNested)
			ctx->PopState();
		else
			engine->ReturnContext(ctx);
		return 0;
	}

	// Let the context handle the case for argument by ref (&) or by handle (@)
	ctx->SetArgObject(0, origObj);

	for (;;)
	{
		r = ctx->Execute();

		// We can't allow this execution to be suspended 
		// so resume the execution immediately
		if (r != asEXECUTION_SUSPENDED)
			break;
	}

	if (r != asEXECUTION_FINISHED)
	{
		if (isNested)
		{
			ctx->PopState();