Accessing external JS code from WASM

[f_l...@yahoo.it]

Hi everybody,

I'd like to know if anybody found a way to access, from Wasm/C++ code,

some EXTERNAL Javascript code, i.e., code NOT contained in the C++ code as inline Javascript, like EM_JS(...).

I'm trying to do so also through the --js-library switch, but I cannot access my external JS function:

ColorFever.js:1387 Uncaught ReferenceError: JsLibCheatPanel is not defined
    at JsCheatPanel (ColorFever.js:1387:27)
    at imports.<computed> (ColorFever.js:8813:35)
    at SdkUtils::CheatPanel() (ColorFever.wasm:0x9d992)
    at SDKCheatPanel() (ColorFever.wasm:0x442d3)
    at GameUtils::MenuFunc(unsigned char) (ColorFever.wasm:0x1e012)
    at GAMMainLoop() (ColorFever.wasm:0x38fb1)
    at MainLoop() (ColorFever.wasm:0x67c5c)
    at dynCall_v (ColorFever.wasm:0x3d2255)
    at ret.<computed> (ColorFever.js:8847:35)
    at ColorFever.js:1174:22

any help is welcome!!

Thanks,

f_lande

[Sam Clegg]

Is JsCheatPanel the name of the `--js-library` function?  And is JsLibCheatPanel the name of the external JS function?

Have you loaded `JsLibCheatPanel` in the global scope somehow?   If you are using devtools can you see if `JsLibCheatPanel` exists?  If not, you need to arrange for that library to be loaded somehow into your global scope.  You can do this using any of the normal html / js methods of loading code.

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[Shlomi Fish]

Hi f-lande!

On Wed, 21 Dec 2022 09:24:46 -0800 (PST)

"'f_l...@yahoo.it' via emscripten-discuss"
<emscripte...@googlegroups.com> wrote:

Please read the whole of these and follow their advice:

* https://github.com/shlomif/how-to-share-code-online

* https://github.com/shlomif/writing-the-perfect-question

> Thanks,
> f_lande
>



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[Francesco Lande]

Hi eveybody,

thanks for your reply.

Eventually, I found out that I had to prepend the function name with the namespace it was declared within,

something like "<namespace>.<function>", in my case "WebApp.JsLibCheatPanel", simple but tricky.

Best regards,

Francesco Lande

Mailto: f_l...@yahoo.it

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