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hygiene 2.0

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This commit is contained in:
Lukas Wirth 2023-11-17 19:07:31 +01:00
parent e36b3f7b8c
commit 05f375eae2
43 changed files with 758 additions and 458 deletions
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11
crates/base-db/src/span.rs
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@ -17,9 +17,18 @@ pub struct SyntaxContextId(InternId);
crate::impl_intern_key!(SyntaxContextId);
impl SyntaxContext for SyntaxContextId {
const DUMMY: Self = Self::ROOT;
// veykril(HACK): salsa doesn't allow us fetching the id of the current input to be allocated so
// we need a special value that behaves as the current context.
}
// inherent trait impls please tyvm
impl SyntaxContextId {
// FIXME: This is very much UB, salsa exposes no way to create an InternId in a const context
// currently (which kind of makes sense but we need it here!)
const DUMMY: Self = SyntaxContextId(unsafe { core::mem::transmute(1) });
pub const ROOT: Self = SyntaxContextId(unsafe { core::mem::transmute(1) });
// FIXME: This is very much UB, salsa exposes no way to create an InternId in a const context
// currently (which kind of makes sense but we need it here!)
pub const SELF_REF: Self = SyntaxContextId(unsafe { core::mem::transmute(!0u32) });
}
#[derive(Copy, Clone, PartialEq, Eq, Hash)]