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Avoid calling the layout_of query in lit_to_const
We got all the information available locally
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mir_build: Rename `thir::cx::Cx` to `ThirBuildCx` and remove `UserAnnotatedTyHelpers`
A combination of two loosely-related tweaks that would otherwise conflict with each other:
- `Cx` is a pretty unhelpful type name, especially when jumping between THIR-building and MIR-building while trying to make changes to THIR data structures.
- The `UserAnnotatedTyHelpers` trait doesn't appear to provide any benefit over a simple helper function, and its `tcx()` method is currently completely unnecessary.
No functional change.
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mode
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This trait doesn't appear to provide any benefit over a simple helper function.
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This aligns the main error message a bit more with the phrasing in the
Edition Guide and provides a bit more information on the labels to
(hopefully!) aid in understanding.
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These particular patterns make it harder to experiment with alternate
representations for THIR patterns and subpatterns.
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By storing `PatRange` in an Arc, and copying a few fields out of `Pat`, we can
greatly simplify the lifetimes involved in match lowering.
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Rework "long type names" printing logic
Make it so more type-system types can be printed in a shortened version (like `Predicate`s).
Centralize printing the information about the "full type name path".
Make the "long type path" for the file where long types are written part of `Diag`, so that it becomes easier to keep track of it, and ensure it will always will be printed out last in the diagnostic by making its addition to the output implicit.
Tweak the shortening of types in "expected/found" labels.
Remove dead file `note.rs`.
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Implement MIR lowering for unsafe binders
This is the final bit of the unsafe binders puzzle. It implements MIR, CTFE, and codegen for unsafe binders, and enforces that (for now) they are `Copy`. Later on, I'll introduce a new trait that relaxes this requirement to being "is `Copy` or `ManuallyDrop<T>`" which more closely models how we treat union fields.
Namely, wrapping unsafe binders is now `Rvalue::WrapUnsafeBinder`, which acts much like an `Rvalue::Aggregate`. Unwrapping unsafe binders are implemented as a MIR projection `ProjectionElem::UnwrapUnsafeBinder`, which acts much like `ProjectionElem::Field`.
Tracking:
- https://github.com/rust-lang/rust/issues/130516
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Make it so more type-system types can be printed in a shortened version (like `Predicate`s).
Centralize printing the information about the "full type name path".
Make the "long type path" for the file where long types are written part of `Diag`, so that it becomes easier to keep track of it, and ensure it will always will be printed out last in the diagnostic by making its addition to the output implicit.
Tweak the shortening of types in "expected/found" labels.
Remove dead file `note.rs`.
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Remove unnecessary hooks
Some hooks can be downgraded to vanilla functions.
r? `@oli-obk`
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They were downgraded from queries in #123995 but they can just be
vanilla functions because they are not called in `rustc_middle`.
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Co-authored-by: FedericoBruzzone <federico.bruzzone.i@gmail.com>
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```
error[E0382]: use of moved value: `x`
--> bay.rs:14:14
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12 | fn foo(x: D) {
| - move occurs because `x` has type `(((..., ..., ..., ...), ..., ..., ...), ..., ..., ...)`, which does not implement the `Copy` trait
13 | let _a = x;
| - value moved here
14 | let _b = x; //~ ERROR use of moved value
| ^ value used here after move
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= note: the full type name has been written to 'bay.long-type-14349227078439097973.txt'
= note: consider using `--verbose` to print the full type name to the console
help: consider cloning the value if the performance cost is acceptable
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13 | let _a = x.clone();
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```
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Always force non-trimming of path in `unreachable_patterns` lint
Creating a "trimmed DefID path" when no error is being emitted is an ICE (on purpose). If we create a trimmed path for a lint that is then silenced before being emitted causes a known ICE. This side-steps the issue by always using `with_no_trimmed_path!`.
This was verified to fix https://github.com/quinn-rs/quinn/, but couldn't write a repro case for the test suite.
Fix #135289.
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Replace tuple with struct and remove unnecessary early return.
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constant as pattern
When we encounter a constant in a pattern, we check if it is non-structural. If so, we check if the type implements `PartialEq`, but for types with escaping bound vars the check would be incorrect as is, so we break early. This is ok because these types would be filtered anyways.
Fix #134764.
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Creating a "trimmed DefID path" when no error is being emitted is an ICE (on purpose). If we create a trimmed path for a lint that is then silenced before being emitted causes a known ICE. This side-steps the issue by always using `with_no_trimmed_path!`.
This was verified to fix https://github.com/quinn-rs/quinn/, but couldn't write a repro case for the test suite.
Fix #135289.
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Lower Guard Patterns to HIR.
Implements lowering of [guard patterns](https://rust-lang.github.io/rfcs/3637-guard-patterns.html) (see the [tracking issue](#129967)) to HIR.
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turn rustc_box into an intrinsic
I am not entirely sure why this was made a special magic attribute, but an intrinsic seems like a more natural way to add magic expressions to the language.
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as well
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Fix some comments related to upvars handling
I'm tidying up my ergonomic ref counting PR and I'm going to make some small, simple and unrelated changes outside that PR, so the main PR sticks more straight to the point.
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