Yes, the Flash 10.1 APIs use the vector class a lot, it's the same for input gestures, where the list of available gestures is stored as a vector. If #passthrough let's us use the syntax, that should be sufficient for now, shouldn't it?
On Tue, Jun 1, 2010 at 6:15 AM, Henry Minsky <[email protected]> wrote: > So apparently flex compiler supports what they call "Vectors", which are > arrays whose elements are all of a declared type. They > are said to compile to more efficient code. > > They describe the syntax below > > > http://help.adobe.com/en_US/ActionScript/3.0_ProgrammingAS3/WS5b3ccc516d4fbf351e63e3d118a9b90204-7ee1.html > > Creating a Vector instance > > You create a Vector instance by calling the Vector.<T>() constructor. You > can also create a Vector by calling the Vector.<T>() global function. That > function converts a specified object to a Vector instance. ActionScript has > no Vector equivalent to Array literal syntax. > > Any time you declare a Vector variable (or similarly, a Vector method > parameter or method return type) you specify the base type of the Vector > variable. You also specify the base type when you create a Vector instance > by calling the Vector.<T>() constructor. Put another way, any time you use > the term Vector in ActionScript, it is accompanied by a base type. > > You specify the Vector’s base type using type parameter syntax. The type > parameter immediately follows the word Vector in the code. It consists of > a dot ( . ), then the base class name surrounded by angle brackets ( <> ), > as shown in this example: > > var v:Vector.<String>; > v = new Vector.<String>(); > > In the first line of the example, the variable v is declared as a > Vector.<String> > instance. In other words, it represents an indexed array that can only hold > String instances. The second line calls the Vector() constructor to create > an instance of the same Vector type (that is, a Vector whose elements are > all String objects). It assigns that object to v . > > > That looks like the new Java 'generics' syntax, right? > > In the new flash text layout package, some of the API's text engine classes > require Vector arguments. Our compiler > doesn't understand this syntax, I assume. I think I can deal with this in > the kernel using #passthrough blocks where I need > to construct or access Vectors. Is this likely to become standard > javascript? Should we be supporting the > syntax in our script compiler? Seems a little bit of a stretch... > > -- > Henry Minsky > Software Architect > [email protected] > > >
