11805: fix: Don't try to resolve methods on unknown types r=Veykril a=flodiebold
Fixes#10454, and some type mismatches.
Co-authored-by: Florian Diebold <flodiebold@gmail.com>
11774: feat: Tag macro calls as unsafe if they expand to unsafe expressions r=Veykril a=Veykril
as long as they aren't inside an unsafe block inside the macro that is.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
11660: Insert dummy values for const generics in subst r=flodiebold a=HKalbasi
fix#11659
This is a band-aid until proper const generic support.
Co-authored-by: hkalbasi <hamidrezakalbasi@protonmail.com>
11663: Internal: Add hir_def::MacroId, add Macro{Id} to ModuleDef{Id} r=Veykril a=Veykril
With this we can now handle macros like we handle ModuleDefs making them work more like other definitions and allowing us to remove a bunch of special cases. This also enables us to track the modules these macros are defined in, instead of only recording the crate they come from.
Introduces a new class of `MacroId`s (for each of the 3 macro kinds) into `hir_def`. We can't reuse `MacroDefId` as that is defined in `hir_expand` which doesn't know of modules, so now we have two different macro ids, this unfortunately requires some back and forth mapping between the two via database accesses which I hope won't be too expensive.
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
11623: fix: Add type variable table to InferenceTableSnapshot r=flodiebold a=tysg
Fixes#11601.
I observed that removing the `rollback` line in 6fc3d3aa4c fixes the issue.
Looking at the stacktrace, I believe not restoring `type_variable_table` causes `type_variable_table` and `var_unification_table` to go out of sync, then when `hir_ty::infer::unify::InferenceTable::new_var` tries to extend `type_variable_table` to be the same length as `var_unification_table`, problems will arise.
However, I cannot pinpoint exactly how or where the vector capacity overflow happens, so my understanding might not be correct after all.
Co-authored-by: Tianyi Song <42670338+tysg@users.noreply.github.com>
- don't return the receiver type from method resolution; instead just
return the autorefs/autoderefs that happened and repeat them. This
ensures all the effects like trait obligations and whatever we learned
about type variables from derefing them are actually applied. Also, it
allows us to get rid of `decanonicalize_ty`, which was just wrong in
principle.
- Autoderef itself now directly works with an inference table. Sadly
this has the effect of making it harder to use as an iterator, often
requiring manual `while let` loops. (rustc works around this by using
inner mutability in the inference context, so that things like unifying
types don't require a unique reference.)
- We now record the adjustments (autoref/deref) for method receivers
and index expressions, which we didn't before.
- Removed the redundant crate parameter from method resolution, since
the trait_env contains the crate as well.
- in the HIR API, the methods now take a scope to determine the trait env.
`Type` carries a trait env, but I think that's probably a bad decision
because it's easy to create it with the wrong env, e.g. by using
`Adt::ty`. This mostly didn't matter so far because
`iterate_method_candidates` took a crate parameter and ignored
`self.krate`, but the trait env would still have been wrong in those
cases, which I think would give some wrong results in some edge cases.
Fixes#10058.
