This document summarizes an error encountered when trying to alter the name of a protocol, as well as configuration files and examples demonstrating usage of the Spyscope library for Clojure debugging and tracing.

3. No implementation of method: :alter-name of protocol:
'camel-snake-kebab.internals.alter-name/AlterName
found for class: nil, compiling:
(/private/var/folders/hn/tgwyrdmj1/T/form-
init2789214926070543937.clj:1:125)

7. ~/.lein/profiles.clj
{:user {:repl-options {:init (set! *print-length* 150)}
:dependencies [[spyscope "0.1.5"]]
:injections [(require 'spyscope.core)]}
:dev {:dependencies [[proto-repl "0.3.1"]
[proto-repl-charts "0.3.1"]
[alembic "0.3.2"]]}}

8. #spy/p - pretty print
user=> (take 20 (repeat #spy/p (+ 1 2 3)))
6
(6 6 6 6 6 6 6 6 6 6 6 ...)

9. #spy/d - debug output
(defn foo
"I don't do a whole lot."
[x]
(println #spy/d x "Hello, World!"))
spyscope.core$pretty_render_value.invokeStatic(core.clj:24) x => 10
10 Hello, World!

10. #spy/t - trace-query
(defn call-future [p] (future (Thread/sleep 10000)
#spy/t (+ 4
(:value {:value p
:something "else"}))))
user=>(use `spyscope.repl)
nil
user=>(trace-query)
spyscope.core$pretty_render_value.invokeStatic(core.clj:24) (+ (:value {:value p, :something "else"})) => 100
----------------------------------------
spyscope.core$pretty_render_value.invokeStatic(core.clj:24) (+ (:value {:value p, :something "else"})) => 100
----------------------------------------
spyscope.core$pretty_render_value.invokeStatic(core.clj:24) (+ 4 (:value {:value p, :something "else"})) => 1
nil

11. #dbg #break
dbg
, d b C-u C-M-x
defn
, e f

12. (defn do-stuff [x y z]
(let [file (slurp "./README.md")
hello (take 10 file)]
#dbg ^{:break/when (some? file)}
(+ 10 (count hello))))