Re: Check is something is Class or instance in Royale

[Carlos Rovira]

Hi Alex,

I'm very new to Language.as, so I'll try to do my best.

I'm trying to add to Language.as "is" function this:

if(rightOperand === Class) {
                return typeof leftOperand === 'function';
            }

the test case is :

var arr:Array = [main]; //main is a container declared in MXML, so is not
class is an instance
if(arr[0] is Class)
{
trace("is Class");
} else
{
trace("is NOT Class"); // I expect to get this trace
}

but browser reports:

[Error] ReferenceError: Can't find variable: Class is (Language.js:147)

So first point to solve is how to deal with "Class", since is not
recognized at javascript level. Seems to me that "Class" should be solved
at compiler level?

Thanks


El vie., 5 oct. 2018 a las 23:11, Alex Harui (<aha...@adobe.com.invalid>)
escribió:

> Hi Carlos,
>
> Use of "is" is transpiled into a call to Language.is.  I think Language.is
> should special case the test for Class.  Try updating Language.is and see
> if that is what you need.
>
> -Alex
>
> On 10/5/18, 11:13 AM, "Carlos Rovira" <carlosrov...@apache.org> wrote:
>
>     Hi,
>
>     in js, check if something is a class or is an instance is like this [1]
>
>     typeof myFunc === 'function'
>
>     In Royale since we are using AS3, doing
>
>     if(something is Class)
>         do this
>     else
>        do that
>
>     should work either for SWF and for JS, but seems is not the case.
>     I must make two codes COMPILE::SWF (with "is Class") and COMPILE::JS
> (with
>     typeof ... ==='function')
>
>     Could we have this abstracted by compiler?
>
>     Thanks
>
>     [1]
>
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstackoverflow.com%2Fquestions%2F405164%2Fbest-method-of-testing-for-a-function-in-javascript&amp;data=02%7C01%7Caharui%40adobe.com%7Ca4d898cf20fe4f072a9008d62aee4d24%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636743600312034959&amp;sdata=fdiolpGWQJihoZw2PfYLmoyckh1mDiynH8EbJXYIeog%3D&amp;reserved=0
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>     --
>     Carlos Rovira
>
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>
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-- 
Carlos Rovira
http://about.me/carlosrovira