https://github.com/lilactown/cljs-alias-ns-map-bug
ClojureScript compilation fails when requiring a namespace using `:as-alias` and then using that alias in a namespaced map
https://github.com/lilactown/cljs-alias-ns-map-bug
Last synced: 8 months ago
JSON representation
ClojureScript compilation fails when requiring a namespace using `:as-alias` and then using that alias in a namespaced map
- Host: GitHub
- URL: https://github.com/lilactown/cljs-alias-ns-map-bug
- Owner: lilactown
- Created: 2024-04-17T00:35:09.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-04-17T00:35:27.000Z (over 1 year ago)
- Last Synced: 2025-02-15T18:48:32.693Z (8 months ago)
- Language: Clojure
- Size: 2.93 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# ClojureScript as-alias + namespaced map bug
Currently, ClojureScript compilation fails when requiring a namespace using
`:as-alias` and then using that alias in a namespaced map.
```
$ cat src/app/a.cljs
(ns app.a
(:require
[app.b :as-alias b]))
;; works
#_(def data {::b/x 1 ::b/y 2 ::b/z 3})
;; broken
(def data #::b {:x 1 :y 2 :z 3})
$ clj -M --main cljs.main --compile app.a
Unexpected error compiling at (REPL:1).
No namespace: app.b found
Full report at:
/var/folders/28/7xm2frlx1cb_gt4nrscjpttw0000gn/T/clojure-10509037535418893124.edn
```
This is regardless of whether `app.b` is on the classpath.
## shadow-cljs
shadow-cljs has additional behavior: if `app.b` is on the namespace _and is
compiled before `app.a`_, then it will pass compilation.
This persists even if `app.b` is removed as long as the cache for that ns still
exists.
```
$ shadow-cljs compile app
shadow-cljs - config: /Users/lilactown/Code/shadow-ns-map/shadow-cljs.edn
[:app] Compiling ...
------ ERROR -------------------------------------------------------------------
File: /Users/lilactown/Code/shadow-ns-map/src/app/a.cljs:9:15
--------------------------------------------------------------------------------
6 | #_(def data {::b/x 1 ::b/y 2 ::b/z 3})
7 |
8 | ;; broken
9 | (def data #::b {:x 1 :y 2 :z 3})
---------------------^----------------------------------------------------------
No namespace: app.b found
--------------------------------------------------------------------------------
10 |
--------------------------------------------------------------------------------
$ echo '(ns app.b)' > src/app/b.cljs
$ shadow-cljs compile app
shadow-cljs - config: /Users/lilactown/Code/shadow-ns-map/shadow-cljs.edn
[:app] Compiling ...
------ ERROR -------------------------------------------------------------------
File: /Users/lilactown/Code/shadow-ns-map/src/app/a.cljs:9:15
--------------------------------------------------------------------------------
6 | #_(def data {::b/x 1 ::b/y 2 ::b/z 3})
7 |
8 | ;; broken
9 | (def data #::b {:x 1 :y 2 :z 3})
---------------------^----------------------------------------------------------
No namespace: app.b found
--------------------------------------------------------------------------------
10 |
--------------------------------------------------------------------------------
$ echo '(ns app.main \
(:require \
[app.a :as a] \
;; require app.b and hope it is compiled before app.a \
[app.b])) \
\
\
(def data a/data) \
\
\
(defn init! [] \
(js/console.log "Hello, world!"))' > src/app/main.cljs
$ shadow-cljs compile app
shadow-cljs - config: /Users/lilactown/Code/shadow-ns-map/shadow-cljs.edn
[:app] Compiling ...
[:app] Build completed. (49 files, 4 compiled, 0 warnings, 1.24s)
$ git checkout -- src/app/main.cljs # reset main.cljs w/o require
$ shadow-cljs compile app
shadow-cljs - config: /Users/lilactown/Code/shadow-ns-map/shadow-cljs.edn
[:app] Compiling ...
[:app] Build completed. (48 files, 1 compiled, 0 warnings, 1.02s)
$ rm -rf .shadow-cljs/builds
$ shadow-cljs compile app
shadow-cljs - config: /Users/lilactown/Code/shadow-ns-map/shadow-cljs.edn
[:app] Compiling ...
------ ERROR -------------------------------------------------------------------
File: /Users/lilactown/Code/shadow-ns-map/src/app/a.cljs:9:15
--------------------------------------------------------------------------------
6 | #_(def data {::b/x 1 ::b/y 2 ::b/z 3})
7 |
8 | ;; broken
9 | (def data #::b {:x 1 :y 2 :z 3})
---------------------^----------------------------------------------------------
No namespace: app.b found
--------------------------------------------------------------------------------
10 |
--------------------------------------------------------------------------------
```