For those keeping score at home, the CLJ-2436 patch says,
(defn- typeref->class
- [typeref classloader]
+ ^Class [typeref classloader]
(if (class? typeref)
typeref
- (clojure.lang.RT/classForName (typename typeref) false classloader)))
+ (clojure.lang.RT/classForName (typename typeref) false classloader)))
I was wondering why the compiler required the type hint. It reminded me of
something I had seen in the news recently, regarding ClojureScript. The
ClojureScript changes.md lists "CLJS-1997: Outward function type hint
propagation". That issue, in turn, has an informative comment (Thanks,
Mike Fikes!) about *Clojure*:
Bronsa helpfully pointed out in Slack that outward type hint propagation is
avoided in Clojure because it breaks things like:
(defn foo [] 1)
(defn bar [] (String/valueOf (foo)))
(defn foo [] "foo")
(bar)
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