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 <javascript:>>
> 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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