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defeffect functions return a different type than the one handle/1 expects #11

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rosacris opened this issue May 18, 2017 · 0 comments
Open

defeffect functions return a different type than the one handle/1 expects #11

rosacris opened this issue May 18, 2017 · 0 comments

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@rosacris
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Hi,

I've been trying to experiment with the library but I'm stuck with an issue that it can be easily spotted in the documentation:

# Create the computation. 
computation = MessageApp.greet "Fred" 
# Perform the computation. 
MessageInterpreter.Console.handle(computation)

The typespec of computation is MessageEffect.t, however the typespec of MessageInterpreter.Console.handle/1 is MessageEffect.Say.e

When I try to run a minimal example it fails exactly for this reason.
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@rosacris