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Print unresolved recursive values as their defining expressions, instead of ?? #3

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Print unresolved recursive values as their defining expressions, instead of ?? #3

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5 changes: 3 additions & 2 deletions src/rmap/core.clj
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@
(print-method reftag *out*))

(defmethod print-method RVal [^rmap.core.RVal rval ^java.io.Writer writer]
(.write writer "??"))
(.write writer (str "(rval " (:ref/sexp (meta (.f rval))) ")")))

(defmethod simple-dispatch RVal [^rmap.core.RVal rval]
(print-method rval *out*))
Expand All @@ -64,7 +64,8 @@
not evaluated yet. The body can use the [[ref]] function while it is
evaluated, or you can bind it locally for use at a later stage."
[& body]
`(RVal. (fn [ref#]
`(RVal. ^{:ref/sexp '~@body}
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The unquote-splice would make the macro fail if the body contains multiple expressions like (rval (println "lazy!") "hi").

(fn [ref#]
(binding [ref ref#]
~@body))))

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