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sci 2022-12-02
borkdude 2022-12-02T16:35:42.785559Z
In SCI, until today defn and defmacro were "special forms", as in, there was built-in support for it, unlike it being macros like in Clojure.
I now changed this in a branch, to be normal macros, so the only special form is fn* and def .
When analyzing a large amount of defn-s, this takes about 5% more time.
E.g loading spec 100 times costs:
$ ./bb "(time (dotimes [i 100] (require '[clojure.spec.alpha] :reload)))"
"Elapsed time: 2306.254417 msecs" $ /opt/homebrew/bin/bb "(time (dotimes [i 100] (require '[clojure.spec.alpha] :reload)))"
"Elapsed time: 2248.706792 msecs"fn, defn and defmacro to be macros (and to have docstrings :))borkdude 2022-12-02T16:40:01.975499Z
$ ./bb "(doc defn)"
-------------------------
clojure.core/defn
([name doc-string? attr-map? [params*] prepost-map? body] [name doc-string? attr-map? ([params*] prepost-map? body) + attr-map?])
Macro
Same as (def name (fn [params* ] exprs*)) or (def
name (fn ([params* ] exprs*)+)) with any doc-string or attrs added
to the var metadata. prepost-map defines a map with optional keys
:pre and :post that contain collections of pre or post conditions.
$ /opt/homebrew/bin/bb "(doc defn)"
$👍 4
👍🏼 1
borkdude 2022-12-02T18:48:58.389469Z
For who is interested looking at the PR: https://github.com/babashka/sci/pull/847/files