Multi Stage Sourcemap Support

[jescalan]

In addition to simply accepting input text, each adapter should also accept an object containing input text and a sourcemap, and if the adapter produces a sourcemap of its own, merge it with the incoming sourcemap. Not a super complicated change, nor is it breaking, just want to have it noted here as this will be an important feature down the line.

[dbox]

So is this why sourcemaps wouldn't work if I'm using both postcss and stylus as multi compile?

[jescalan]

Yes. Won't be a huge feature to add though, just need some time or someone
to contribute!

On Tue, Jul 7, 2015, 8:51 PM Daniel Box [email protected] wrote:

So is this why sourcemaps wouldn't work if I'm using both postcss and
stylus as multi compile?

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#103 (comment).

[dbox]

maybe @hhsnopek ? 👼 🙏

[hhsnopek]

Could you define merge @Jenius? For instance if we have multipass on .css.styl, which will start with stylus, then move to postcss, will it only contain the original stylus code then append the postcss code?

[jescalan]

Basically input should take either a string or an object, then if its an object and has a sourcemap key/val pair, it should run a sourcemap merge as such: https://github.com/jenius/autoprefixer-stylus/blob/master/index.js#L45