rust/compiler/rustc_ast
bors 1ec2c136b3 Auto merge of #95779 - cjgillot:ast-lifetimes-undeclared, r=petrochenkov
Report undeclared lifetimes during late resolution.

First step in https://github.com/rust-lang/rust/pull/91557

We reuse the rib design of the current resolution framework. Specific `LifetimeRib` and `LifetimeRibKind` types are introduced. The most important variant is `LifetimeRibKind::Generics`, which happens each time we encounter something which may introduce generic lifetime parameters. It can be an item or a `for<...>` binder. The `LifetimeBinderKind` specifies how this rib behaves with respect to in-band lifetimes.

r? `@petrochenkov`
2022-04-17 12:56:19 +00:00
..
src Auto merge of #95779 - cjgillot:ast-lifetimes-undeclared, r=petrochenkov 2022-04-17 12:56:19 +00:00
Cargo.toml Migrate to 2021 2021-09-20 22:21:42 -04:00
README.md docs(rustc_ast): update crate descriptions 2021-11-02 21:11:17 -05:00

The rustc_ast crate contains those things concerned purely with syntax that is, the AST ("abstract syntax tree"), along with some definitions for tokens and token streams, data structures/traits for mutating ASTs, and shared definitions for other AST-related parts of the compiler (like the lexer and macro-expansion).

For more information about how these things work in rustc, see the rustc dev guide: