Rustdoc search feature request: support a "field" item kind filter

[lf-]

Currently, according to the help menu,

Prefix searches with a type followed by a colon (e.g., fn:) to restrict the search to a given item kind.
Accepted kinds are: fn, mod, struct, enum, trait, type, macro, and const.

However, fields are found by the search, it's just not possible to filter to only include them. It would be useful to be able to do so.

rust version: rustc 1.56.0-nightly (d3e2578 2021-08-21)

[dns2utf8]

I did a search for fn:parse and the results it returned are functions that are named similareley:
https://doc.rust-lang.org/nightly/std/?search=fn%3Aparse

What query did you use? And where did you host it?

Cheers,
Stefan

cc: @rustdoc @GuillaumeGomez

[GuillaumeGomez]

@dns2utf8: I think they meant that they wanted something like:

pub struct Foo {
    pub a: u32,
}

Then search it like this:

field:a
// or:
field:u32

[dns2utf8]

Ah, now I understand 👍

[GuillaumeGomez]

I guess a variant filter would be nice too, or maybe we just consider variant and field as the same thing. In any case, it'll have to wait for the rework of the rustdoc search I'm working on (which is currently waiting for #88268 to be merged).