JS export

[juancarlospaco]

• Added jscore.jsexport.

const example = example_603979787;
export { example as default };

var example2_603979788 = "This is exported as another in JS";
const example2 = example2_603979788
export { example2 as another };

const example3 = "This is exported as example3 in JS";
export { example3 };

[timotheecour]

where is "debugger@" documented and what does it mean?

manual mentions "createDevice(@)" but not "createDevice@"

[juancarlospaco]

$ cat example.nim
func debugger*() {.importjs: "debugger".}
debugger()

$ nim js example.nim
Error: `importjs` for routines requires a pattern

$

https://github.com/nim-lang/Nim/wiki/Nim-for-TypeScript-Programmers#JavaScript-Interoperability

🤷

[timotheecour]

• but shouldn't it be "debugger(@)" ? "debugger@"` seems wrong and may (in future) turn into a CT error
• in future work we should support importjs: "debugger" though

[juancarlospaco]

"debugger(@)" emits debugger() but must be debugger.

[timotheecour]

can you document this in a followup PR?

[dom96]

can't you use importc: "debugger"?

[juancarlospaco]

It looks like a small bug on importjs tho. 🤷

[timotheecour]

i added a note in nim-lang/RFCs#315 so we don't lose track

[juancarlospaco]

Gitlab is 500'ing in the CI. 😐

[timotheecour]

LGTM

I guess we also need jsImport in future work then?
(https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import)

docs look a bit funny with the runnableExamples at the top, but that'll be fixed when this regression is fixed: #16993

[ghost]

https://github.com/nepeckman/jsExport.nim might be worth looking into for some ideas btw

[ghost]

https://github.com/nepeckman/jsExport.nim might be worth looking into for some ideas btw

[timotheecour]

@Yardanico has a good point, if we're offering it in stdlib, might as well make it as good as can be; but then it should be it's own module IMO; please check with @Araq first whether he'd accept a well designed std/jsexports (that'd contain jsImport, jsExport macros similar to https://github.com/nepeckman/jsExport.nim)

[Araq]

We still have Fusion as the staging area...