Require generator for :gen/fmap
#1120
Open
+30
−17
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:gen/fmap
is fednil
if its schema cannot create a generator. This does not seem like desirable semantics because silent failures could happen if the:gen/fmap
function is permissive, likefirst
or a keyword, making the entire generator returnnil
s.Could we reconsider this? Perhaps
:gen/fmap
predated:gen/return
and:gen/elements
, but we can certainly now force the user to be explicit here. Importantly, is this worth the risk breaking things by fixing it?Also includes a fix for the CLJS version of
alphanumeric-char?
in the tests.