mirror of
https://github.com/rust-lang/rust.git
synced 2025-06-05 11:48:30 +00:00
379233242b
Rename HIR `TypeBinding` to `AssocItemConstraint` and related cleanup
Rename `hir::TypeBinding` and `ast::AssocConstraint` to `AssocItemConstraint` and update all items and locals using the old terminology.
Motivation: The terminology *type binding* is extremely outdated. "Type bindings" not only include constraints on associated *types* but also on associated *constants* (feature `associated_const_equality`) and on RPITITs of associated *functions* (feature `return_type_notation`). Hence the word *item* in the new name. Furthermore, the word *binding* commonly refers to a mapping from a binder/identifier to a "value" for some definition of "value". Its use in "type binding" made sense when equality constraints (e.g., `AssocTy = Ty`) were the only kind of associated item constraint. Nowadays however, we also have *associated type bounds* (e.g., `AssocTy: Bound`) for which the term *binding* doesn't make sense.
---
Old terminology (HIR, rustdoc):
```
`TypeBinding`: (associated) type binding
├── `Constraint`: associated type bound
└── `Equality`: (associated) equality constraint (?)
├── `Ty`: (associated) type binding
└── `Const`: associated const equality (constraint)
```
Old terminology (AST, abbrev.):
```
`AssocConstraint`
├── `Bound`
└── `Equality`
├── `Ty`
└── `Const`
```
New terminology (AST, HIR, rustdoc):
```
`AssocItemConstraint`: associated item constraint
├── `Bound`: associated type bound
└── `Equality`: associated item equality constraint OR associated item binding (for short)
├── `Ty`: associated type equality constraint OR associated type binding (for short)
└── `Const`: associated const equality constraint OR associated const binding (for short)
```
r? compiler-errors
|
||
|---|---|---|
| .. | ||
| liveness | ||
| abi_test.rs | ||
| check_attr.rs | ||
| check_const.rs | ||
| dead.rs | ||
| debugger_visualizer.rs | ||
| diagnostic_items.rs | ||
| entry.rs | ||
| errors.rs | ||
| hir_id_validator.rs | ||
| hir_stats.rs | ||
| lang_items.rs | ||
| layout_test.rs | ||
| lib_features.rs | ||
| lib.rs | ||
| liveness.rs | ||
| loops.rs | ||
| naked_functions.rs | ||
| reachable.rs | ||
| stability.rs | ||
| upvars.rs | ||
| weak_lang_items.rs | ||