Add cancellation support (experimental!) #132
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Following up on #114, and specially @gusty's suggestion (#114 (comment)), this is another attempt to making that work.
So, I gave it another try. It appears that the problem is that, when you have "automatic" methods (bind, yield, return, zero), the compiler wants a
For
implementation whenever you add a custom operation.Now, there already is a
For
implementation, of course. Probably, the signature should be different. I don't know how this would desugar. Here's a screenshot of the error.