Convert from ref classes to R6

rstudio / httpuv

HTTP and WebSocket server package for R

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Closed wch closed 5 years ago

wch commented 5 years ago

This PR makes httpuv stop using ref classes and switches it to R6 instead.

jcheng5 commented 5 years ago

Any idea why we're failing Travis?

wch commented 5 years ago

I think it was a problem trying to upgrade callr. Clearing the Travis cache seems to have fixed it.