Emacs whitespace-mode breaks rust-mode highlighting

[andersk]

To reproduce, run M-x global-whitespace-mode and M-x rust-mode, then type some Rust code. Most of the syntax highlighting will go away shortly after you type, and generally acts really glitchy. As a concrete example, you can get the highlighting back by pressing SPC DEL at the beginning of the buffer, but it goes away immediately if you save or move the cursor.

I’m using Emacs 24.1+1-2ubuntu3 on Ubuntu 12.10.

[pnkfelix]

Ah, I've been wondering why rust-mode has been generally glitchy for me; I bet this is why.

[evmar]

I ran into this too. Maybe it'd helpful to at least mention the issue in the README, if it can't be fixed easily.

[pnkfelix]

part of #8793

[pnkfelix]

Assigning P-low.