For example:

name = #6.8386104246373017956(int)

This is a perfectly valid tag, and when using the crate directly there's no issue, but it shows an error in the LSP:

expected rule identifier followed by an assignment token '=', '/=' or '//='

This is because the AST specifies tag values to be usize, and the LSP compiles this crate to wasm32, where usize is 32-bit.

Just reporting for now, might tackle changing this later myself.