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async: Give predictable name to binding generated from .await expressions.
This name makes it to debuginfo and allows debuggers to identify such bindings and their captured versions in suspended async fns.
This will be useful for async stack traces, as discussed in https://internals.rust-lang.org/t/async-debugging-logical-stack-traces-setting-goals-collecting-examples/15547.
I don't know if this needs some discussion by ````@rust-lang/compiler,```` e.g. about the name of the binding (`__awaitee`) or about the fact that this PR introduces a (soft) guarantee about a compiler generated name. Although, regarding the later, I think the same reasoning applies here as it does for debuginfo in general.
r? ````@tmandry````
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expressions.
This name makes it to debuginfo and allows debuggers to identify such bindings and
their captured versions in suspended async fns.
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This PR attempts to clean up some minor spelling mistakes in comments
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Fix many spelling mistakes
Signed-off-by: codehorseman <cricis@yeah.net>
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There are a few places were we have to construct it, though, and a few
places that are more invasive to change. To do this, we create a
constructor with a long obvious name.
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Signed-off-by: codehorseman <cricis@yeah.net>
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More robust fallback for `use` suggestion
Our old way to suggest where to add `use`s would first look for pre-existing `use`s in the relevant crate/module, and if there are *no* uses, it would fallback on trying to use another item as the basis for the suggestion.
But this was fragile, as illustrated in issue #87613
This PR instead identifies span of the first token after any inner attributes, and uses *that* as the fallback for the `use` suggestion.
Fix #87613
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then we just suggest the first legal position where you could inject a use.
To do this, I added `inject_use_span` field to `ModSpans`, and populate it in
parser (it is the span of the first token found after inner attributes, if any).
Then I rewrote the use-suggestion code to utilize it, and threw out some stuff
that is now unnecessary with this in place. (I think the result is easier to
understand.)
Then I added a test of issue 87613.
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Bump bootstrap to 1.60
This bumps the bootstrap compiler to 1.60 and cleans up cfgs and Span's rustc_pass_by_value (enabled by the bootstrap bump).
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Previously it always returned `MacroKind::Bang` while some of those macros are actually attributes and derives
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Node id to hir id refactor
Related to #89278
r? `@oli-obk`
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Checking of asm! register operands now properly takes function
attributes such as #[target_feature] and #[instruction_set] into
account.
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The previous approach of checking for the reserve-r9 target feature
didn't actually work because LLVM only sets this feature very late when
initializing the per-function subtarget.
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Adopt let else in more places
Continuation of #89933, #91018, #91481, #93046, #93590, #94011.
I have extended my clippy lint to also recognize tuple passing and match statements. The diff caused by fixing it is way above 1 thousand lines. Thus, I split it up into multiple pull requests to make reviewing easier. This is the biggest of these PRs and handles the changes outside of rustdoc, rustc_typeck, rustc_const_eval, rustc_trait_selection, which were handled in PRs #94139, #94142, #94143, #94144.
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asm: Allow the use of r8-r14 as clobbers on Thumb1
Previously these were entirely disallowed, except for r11 which was allowed by accident.
cc `@hudson-ayers`
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Add more information to `impl Trait` error
Fixes #92458
Let me know if I went overboard here, or if the suggestions could use some refinement.
r? `@estebank`
Feel free to reassign to someone else
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Previously these were entirely disallowed, except for r11 which was
allowed by accident.
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This reverts commit 3cfa4def7c87d571bd46d92fed608edf8fad236e, reversing
changes made to 5d8767cb229b097fedb1dd4bd9420d463c37774f.
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Inherit lifetimes for async fn instead of duplicating them.
The current desugaring of `async fn foo<'a>(&usize) -> &u8` is equivalent to
```rust
fn foo<'a, '0>(&'0 usize) -> foo<'static, 'static>::Opaque<'a, '0, '_>;
type foo<'_a, '_0>::Opaque<'a, '0, '1> = impl Future<Output = &'1 u8>;
```
following the RPIT model.
Duplicating all the inherited lifetime parameters and setting the inherited version to `'static` makes lowering more complex and causes issues like #61949. This PR removes the duplication of inherited lifetimes to directly use
```rust
fn foo<'a, '0>(&'0 usize) -> foo<'a, '0>::Opaque<'_>;
type foo<'a, '0>::Opaque<'1> = impl Future<Output = &'1 u8>;
```
following the TAIT model.
Fixes https://github.com/rust-lang/rust/issues/61949
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This would previously incorrectly reject two subregisters that were
distinct but part of the same larger register, for example `al` and
`ah`.
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Remove defaultness from ImplItem.
This information is not really used anywhere, except HIR pretty-printing. This makes ImplItem and TraitItem more similar.
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