rustdoc type-based search appears to not support searching by built-in types · Issue #60485 · rust-lang/rust (original) (raw)

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Description

You can search for functions that appear to satisfy some sort of a shape/type as such input -> output, however that will not work for more complicated searches involving built-in types, including:

• slices [T] -> *;
• pointers *mut T -> *;
• tuples (*, *);
  • and similarly multiple arguments
• probably more.

Instead of attempting to guess a what kind of search this is based on -> I propose that we add another "type" indicating that this is a signature we’re looking for and take a type of the function pointer as an argument, so something like this would work:

• sig:fn([T]) -> *
• sig:fn(*mut T) -> T
• `sig:(A, B)
• sig:...