Performance drop w/ huge JSX statements

[ryyppy]

We had a case in the ReasonConf US 2019 website where we wanted to codify some SVG in a React component. It's a very complex SVG with a lot of paths, therefore the file is reaching around 6000 LOC of nested JSX components with <path/> elements.

Concrete standalone component: https://gist.github.com/ryyppy/0224e28320c8cef7d8465a0d8abc4eac

On my 13 inch Macbook 2016:

>>>> Start compiling
[2/2] Building components/HeroGraphic.mlast.d
[1/1] Building components/HeroGraphic.cmj
>>>> Finish compiling 30944 mseconds

Apparently it speeds up when not using refmt, since it sidesteps a lot of extra computation, but type-checking still seems to be pretty slow.

Would be interesting at which point it is getting really slow. Will keep this issue around for awareness.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.