Module.Runtime.addFunction no longer available

[tqc...@cs.washington.edu]

Hi

   I used Module.Runtime.addFunction to pass javascript function as pointers into C, which worked great for me http://kripken.github.io/emscripten-site/docs/porting/connecting_cpp_and_javascript/Interacting-with-code.html?highlight=addfunction#calling-javascript-functions-as-function-pointers-from-c 

  

  However, in the latest update seems there are changes and Module.Runtime.addFunction is no longer available. I tried to add 'Runtime' to EXTRA_EXPORTED_RUNTIME_METHODS but seems the field is undefined. Is there any way to get handle of this from the javascript side?

Thanks very much!

Tianqi

[Alon Zakai]

Sorry about this, this is because of a recent refactoring to the Runtime object. The fix should just be removing the "Runtime." prefix, as those functions are now just regular top-level JS functions. I added more documentation on this now in the FAQ,

http://kripken.github.io/emscripten-site/docs/getting_started/FAQ.html#why-does-runtime-no-longer-exist-why-do-i-get-an-error-trying-to-access-runtime-something

https://github.com/kripken/emscripten/pull/6001

We also mention this in the changelog, and an explanation is shown in -O0 builds or builds with ASSERTIONS enabled. Aside from those places and the FAQ, is there somewhere else we should mention this?

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[Tianqi Chen]

Thanks for the answer. I also tried using Module.addFunction and also exported the function using -s EXPORTED_RUNTIME_METHODS="['getValue','setValue', 'cwrap', 'addFunction'].  

But addFunction is still not available in Module(we can get other functions like Module.getValue). Is this function get renamed or removed during refactoring? 

Tianqi

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[Alon Zakai]

Sorry, yeah, that was a bug - during the refactoring I didn't add in support for exporting those methods, and we didn't have tests to catch it. A fix is in

https://github.com/kripken/emscripten/pull/6007

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[Tianqi Chen]

awesome, thanks so much !

Tianqi

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