defrecord which "proxies" protocols to its first field
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(defmacro defrecord* | |
[-name fields & opts+specs] | |
(let [p (:proxy (meta -name)) | |
extra (for [protocol p | |
:let [-ns (namespace protocol) | |
arg (first fields) | |
p' @(requiring-resolve protocol)]] | |
[protocol | |
(apply | |
concat | |
(for [[_ spec] (:sigs p') | |
arglist (:arglists spec) | |
:let [method (:name spec) | |
method' (symbol -ns (name method))]] | |
`(~method [~@arglist] (~method' ~arg ~@(rest arglist)))))]) | |
extra (apply concat extra) | |
opts `(~@extra ~@opts+specs)] | |
`(defrecord ~-name ~fields ~@opts))) | |
(defrecord* | |
^{:proxy [clojure.core.protocols/IKVReduce]} | |
Foo | |
[m] | |
component/Lifecycle | |
(start [this]) | |
(stop [this])) | |
:: TODO handle interfaces nicely | |
(let [arg 'arg] | |
(for [member (:members (clojure.reflect/reflect java.util.Map)) | |
:let [flags (:flags member)] | |
:when (and (:public flags) | |
(not (:static flags))) | |
:let [{method :name | |
params :parameter-types} member | |
args (into ['_] | |
(map | |
(fn [p] | |
(cond-> (gensym) | |
(not= p java.lang.Object) | |
(with-meta {:tag p})))) | |
params)]] | |
`(~method [~@args] (. ~arg ~method ~@(rest args))))) | |
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