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Merge #8284

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8284: Reduce memory usage by using global `Arc`-based interning r=jonas-schievink a=jonas-schievink

This saves around 50 mb when running `analysis-stats` on r-a itself. Not a lot, but this infra can be easily reused to intern more stuff.

Co-authored-by: Jonas Schievink <jonasschievink@gmail.com>
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bors[bot] 2021-04-02 16:43:16 +00:00 • committed by GitHub
commit f4d56989b6
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15 changed files with 230 additions and 136 deletions
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crates/hir_ty/src/lower.rs
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@ -1154,7 +1154,7 @@ fn type_for_type_alias(db: &dyn HirDatabase, t: TypeAliasId) -> Binders<Ty> {
Binders::new(0, TyKind::ForeignType(crate::to_foreign_def_id(t)).intern(&Interner))
} else {
let type_ref = &db.type_alias_data(t).type_ref;
let inner = ctx.lower_ty(type_ref.as_ref().unwrap_or(&TypeRef::Error));
let inner = ctx.lower_ty(type_ref.as_deref().unwrap_or(&TypeRef::Error));
Binders::new(generics.len(), inner)
}
}