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Begin nightly-ifying rustc_type_ir

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This commit is contained in:
Michael Goulet 2023-10-24 00:16:14 +00:00
parent 2831701757
commit 4506681e2f
19 changed files with 214 additions and 102 deletions
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22
compiler/rustc_macros/src/lib.rs
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@ -19,7 +19,6 @@ mod current_version;
mod diagnostics;
mod hash_stable;
mod lift;
mod newtype;
mod query;
mod serialize;
mod symbols;
@ -44,27 +43,6 @@ pub fn symbols(input: TokenStream) -> TokenStream {
symbols::symbols(input.into()).into()
}
/// Creates a struct type `S` that can be used as an index with
/// `IndexVec` and so on.
///
/// There are two ways of interacting with these indices:
///
/// - The `From` impls are the preferred way. So you can do
/// `S::from(v)` with a `usize` or `u32`. And you can convert back
/// to an integer with `u32::from(s)`.
///
/// - Alternatively, you can use the methods `S::new(v)` and `s.index()`
/// to create/return a value.
///
/// Internally, the index uses a u32, so the index must not exceed
/// `u32::MAX`. You can also customize things like the `Debug` impl,
/// what traits are derived, and so forth via the macro.
#[proc_macro]
#[allow_internal_unstable(step_trait, rustc_attrs, trusted_step, spec_option_partial_eq)]
pub fn newtype_index(input: TokenStream) -> TokenStream {
newtype::newtype(input)
}
decl_derive!([HashStable, attributes(stable_hasher)] => hash_stable::hash_stable_derive);
decl_derive!(
[HashStable_Generic, attributes(stable_hasher)] =>