@onetom unfortunately weakmaps are not that useful as far as I can tell

weakmap implementation is equivalent to just adding a property to the key object

what we really need are weak references, which appears to be something the browser devs are unwilling to allow to happen

you really need weak references to make certain kinds of data structures work well with GC

that's a pity. it sounded like the key in the weakmap itself is a weak reference

it might happen in the future tho

there is a massive thread on es-discuss about it that fires up from time to time

the reasons against are technically interesting, related to security and a technique called jit spraying

@onetom you could say the idea of the weakmap is itself a weak one 🙂

the idea is that the value can be garbage collected whenever the key can be garbage collected

but this is not so useful, because it means that you must not keep references to the keys in the map

without references to the keys in the map you cannot do things like enumerate the keys of the map

or iterate over them

given a key object, the weakmap returns the associated value

function new_weak_map() { return uuid.generate(); }
function assoc(weakmap, k, v) { k[weakmap] = v; }
function get(weakmap, k) { return k[weakmap]; }

that's what it all boils down to, unfortunately

I'm trying to get .bootignore to work on windows 10. I'm editing in emacs

# emacs
#.bootignore controls construction of the initial boot-fileset. Files matching the regexes in .bootignore will be excluded. For example, to ignore emacs backup files, .bootignore should contain
.*~$.
# To ignore transient emacs files, add
^\.#
#and
/\.#.

Writing adzerk\boot_reload.cljs to connect to ...
Writing main.cljs.edn...
Compiling ClojureScript...
ò main.js
No such namespace: modern-cljs..#core, could not locate modern_cljs//_SHARP_core.cljs, modern_cljs//_SHARP_core.cljc, o
 Closure namespace "modern-cljs..#core" in file boot\cljs\main489.cljs
Elapsed time: 0.170 sec

and clearly that's not meant for boot-reload