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Fix #33: Add >defmethod #34

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Fix #33: Add >defmethod #34

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16 changes: 16 additions & 0 deletions src/ghostwheel/core.cljc
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Original file line number Diff line number Diff line change
Expand Up @@ -1273,6 +1273,22 @@
(cljs-env? &env) clj->cljs)
(clean-defn 'defn- forms)))

(defmacro >defmethod
"Like defmethod, but requires a (nilable) gspec definition and generates
additional `s/fdef`, generative tests, instrumentation code, an
fspec-based stub, and/or tracing code, depending on the configuration
metadata and the existence of a valid gspec and non-nil body."
[multifn dispatch-val argv gspec & body]
(let [delegate-defn-name (symbol (str multifn "_" (gensym)))]
`(do
(>defn ~delegate-defn-name
~argv
~gspec
~@body)
(defmethod ~multifn
~dispatch-val
~argv
(~delegate-defn-name ~@argv)))))

(defmacro after-check
"Takes a number of 0-arity functions to run
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