Automatic processing JavaScript redirects don’t work

[supermueller]

Quick, short summary:

If you using default exports and redirects in JavaScripts CodeKit doesn’t start processing on file changes (in CodeKit Version 3.8.2 Build 29156)

Exact steps to reproduce:

Create a script with a default export, e.g. _export.js:

export default answer = 42;

Redirect the default in another script, e.g. _redirect.js:

export {default} from "_export.js";

Import the redirected default in a third script, import.js:

import something from "_redirect.js";
console.log(something);

Set ES6 bundling format of import.js to CommonJS.

If you then modify the script with the default export (e.g. change answer to 43), CodeKit doesn’t process the output.

[bdkjones]

Yea, I see why. CodeKit walks files looking for import statements to determine dependency links. There is no import between _export.js and _redirect.js, so CodeKit is not aware that those two files are linked.

How common is this approach?

[supermueller]

I don’t know, how common that feature is, but the MDN docs list this approach:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/export#Module_Redirects

There is a workaround for CodeKit by first importing and then exporting, but I think it would be nice to support the “official” pattern.

Workaround:

import something from "_export.js";
export default something;

[bdkjones]

Sure, I just wasn’t aware of the pattern. It seems that “export ____ from” can be considered an import statement for linking purposes. If “export” appears without “from”, then it’s not.

Sent from my iPhone

On Mar 25, 2019, at 09:49, Karsten Müller [email protected] wrote:

I don’t know, how common that feature is, but the MDN docs list this approach:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/export#Module_Redirects

There is a workaround for CodeKit by first importing and then exporting, but I think it would be nice to support the “official” pattern.

Workaround:

import something from "_export.js"; export default something; — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.