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rust/compiler/rustc_query_impl/src
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Nicholas Nethercote e661514bda Remove hook calling via TyCtxtAt. 
All hooks receive a `TyCtxtAt` argument.

Currently hooks can be called through `TyCtxtAt` or `TyCtxt`. In the
latter case, a `TyCtxtAt` is constructed with a dummy span and passed to
the hook.

However, in practice hooks are never called through `TyCtxtAt`, and
always receive a dummy span. (I confirmed this via code inspection, and
double-checked it by temporarily making the `TyCtxtAt` code path panic
and running all the tests.)

This commit removes all the `TyCtxtAt` machinery for hooks. All hooks
now receive `TyCtxt` instead of `TyCtxtAt`. There are two existing hooks
that use `TyCtxtAt::span`: `const_caller_location_provider` and
`try_destructure_mir_constant_for_user_output`. For both hooks the span
is always a dummy span, probably unintentionally. This dummy span use is
now explicit. If a non-dummy span is needed for these two hooks it would
be easy to add it as an extra argument because hooks are less
constrained than queries.
2025-02-03 17:02:33 +11:00
..
lib.rs Remove hook calling via TyCtxtAt. 2025-02-03 17:02:33 +11:00
plumbing.rs don't return an Option from try_find_dep_kind 2025-01-07 21:57:00 +01:00
profiling_support.rs Move some code from Compiler::enter to GlobalCtxt::finish 2024-11-09 17:55:39 +00:00
README.md Move the query system to rustc_query_impl. 2021-02-19 17:51:58 +01:00

README.md

For more information about how the query system works, see the rustc dev guide.