AOT compilation added another "already loaded" mechanism to clojure.lang.RT.load() which is currently not sensitive to a "reload- all" being in progress and breaks its operation in the following case:
A, B, and C are libs
A depends on B. (via :require in its ns form)
B depends on C. (via :require in its ns form)
B has been compiled (B.class is on classpath)
At the repl I "require" A which loads A, B, and C (either from class
files or clj files)
I modify C.clj
At the repl I "require" A with the :reload-all flag, intending to
pick up the changes to C
C is not reloaded because RT.load() skips loading B: B.class exists,
is already loaded, and B.clj hasn't changed since it was compiled.
I'd like to add an issue for this to the Clojure project and supply a patch to fix it. My current patch creates a "*reload-all*" var with a root binding of nil and code to bind it to true when the current thread has a :reload-all call pending. When *reload-all* is true, RT.load() will (re)load all libs from their ".clj" files even if they're already loaded.
--Steve
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