Rust docs: Please add groupings of producers and consumers by type

I find myself often navigating to rustdocs and then clicking through to the [src] link instead of using the docs directly (or bypassing rustdoc and going to the git repo). The most common reason I find myself doing this is because I'm trying to learn the interface for some type that I want to use.

Coming from an algebraic datatype background, I often want to know the set of ways to introduce a type and the different functions that accept that type (roughly speaking, producers and consumers of a type).

The rustdocs as they are today do a good job of listing the impl functions for a type and enumerating traits for the type. So what more do I want? Let's say there is a module foo that defines the type Foo. Often times foo, and other modules within the same library, also define functions that operate on Foo. I would like a convenient way to see these functions together. Perhaps we could call it a type indexed index :)

I apologize if this feature already exists and I've overlooked it.

Thanks in advance!

1. Triage: no changes. @rust-lang/rustdoc , is this a feature that will ever be implemented?

   Steve Klabnik at 2018-09-24 15:59:25

2. FWIW, currently you can search for all functions that takes a type as parameter directly in the search bar. Maybe this solves the problem.

   Jacob Zhong at 2022-12-11 05:15:07