No, that method would still require a return statement. Getting rid of the
return statement requirement would need a new API, or transforming the source
program before using it.
> On Jun 21, 2019, at 3:27 AM, Zoltan B <zbendef...@gmail.com> wrote:
>
> Thanks for your answer! :)
>
> In the (1) solution of yours, is there a way to be able to create functions
> that behave like scripts? I mean, that if I write onclick="1+1", then if I
> parse and run "1+1" as a function it would return 2 without using the
> "return" keyword (e.g.: "return 1+1")?
>
> 2019. június 20., csütörtök 16:04:53 UTC+2 időpontban Caitlin Potter a
> következőt írta:
>>
>> I don’t believe you can do exactly what you want here, as there are two
>> parts:
>>
>> 1) getting `this` set properly. I believe you should be able to use
>> `CompileFunctionInContext()` to this effect, which is used to provide
>> implicit arguments to DOM onxxx=“script...” handlers. I believe you can then
>> make `this` whatever you want in that function. Return statements would
>> still be legal, as they are in DOM events, though.
>>
>> 2) completion value of the script. This is trickier, as the v8 API does not
>> expose a way to run the AST rewriter on arbitrary functions afaict. It may
>> be possible to introduce an API for this, if it’s important.
>>
>> You might be able to take a third option, transforming the code with a
>> custom Babel plugin before passing it to v8 (at runtime), and providing the
>> sourcemap info along with it for debugging purposes.
>>
>>> On Jun 20, 2019, at 9:49 AM, Zoltan B <zben...@gmail.com> wrote:
>>>
>>> Any ideas? :)
>>>
>>> 2019. június 7., péntek 13:16:08 UTC+2 időpontban Zoltan B a következőt
>>> írta:
>>>>
>>>> Hi!
>>>>
>>>> Is there a way to provide value for the 'this' keyword, when I'm running a
>>>> v8 Script?
>>>>
>>>> An alternative would be to compile the code as a function instead, and
>>>> provide 'this' when calling it trough 'recv', but then I would have other
>>>> issues: running a script like this: "1+1" would not return 2 as a result,
>>>> as I would have to explicitly put a "return" in front of "1+1", so the
>>>> function will return the script's value. This seems to be error prone, not
>>>> to mention that script locations will skew when viewed from DevTools.
>>>> Using "return eval('1+1')" would work, but it kills performance due to the
>>>> eval.
>>>>
>>>
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