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miracle.save

Tiny clojure lib for saving/loading local bindings, useful for debugging.

save and ld

Use save to store the bindings at the place save was called. Use ld to load those bindings (i.e. def them).

Example usage

(use 'miracle.save)

(defn add [x y] (save :a) (+ x y))
(add 5 10)
(ld :a)
x ;; 5
y ;; 10
  
(add 20 30)
(add 7 13)
  
(print-saves :a)

save-var*

Use save-var* to automatically capture arguments and return values of a function or save-ns* to do so for all functions in a namespace. Access the values via print-saves or @f-saves.

Example usage

(use 'miracle.save)

(defn yo ([x] x) ([x {:keys [a b]}] (+ x a b)) ([x y & rest] (apply + x y rest)))

(save-var* 'yo)

(yo 5)
(yo 5 {:a 20 :b 30})
(yo 5 30 40)
(yo 5 30 40 50)
@f-saves
;; =>
;; {#'user/yo
;;  ({:args {x 5, y 30, rest (40 50)},
;;    :spec-args ([x 5] [y 30] [rest (40 50)]),
;;    :ret 125}
;;   {:args {x 5, y 30, rest (40)},
;;    :spec-args ([x 5] [y 30] [rest (40)]),
;;    :ret 75}
;;   {:args {x 5, a 20, b 30},
;;    :spec-args ([x 5] [:arg-1 {:a 20, :b 30}]),
;;    :ret 55}
;;   {:args {x 5}, :spec-args ([x 5]), :ret 5})}

Try it out with:

{:deps
 {github-saikyun/miracle.save
  {:git/url "https://github.com/saikyun/miracle.save"
   :sha     "3d54fe9904fd324b82acb2692d46d227505f3891"}}}

Similar libraries

  • scope-capture - capture the arguments passed to a wrapped expression and recreate them as global defs or a let. Also breakpoint/continue functionality.

License

MIT License

Copyright (c) 2019 Jona Ekenberg

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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