Module user_ty 

Helper code for building a linked list of user-type projections on the stack while visiting a THIR pattern.

This avoids having to repeatedly clone a partly-built UserTypeProjections at every step of the traversal, which is what the previous code was doing.

Enums

ProjectedUserTypesNode 🔒

ProjectedUserTypesOp 🔒

One of a list of “operations” that can be used to lazily build projections of user-specified types.

Type Aliases

UserTypeIndices 🔒

A single thir::Pat node should almost never have more than 0-2 user types. We can store up to 4 inline in the same size as an ordinary Vec.