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bors 757b8efed4 Auto merge of #120712 - compiler-errors:async-closures-harmonize, r=oli-obk 
Harmonize `AsyncFn` implementations, make async closures conditionally impl `Fn*` traits

This PR implements several changes to the built-in and libcore-provided implementations of `Fn*` and `AsyncFn*` to address two problems:
1. async closures do not implement the `Fn*` family traits, leading to breakage: https://crater-reports.s3.amazonaws.com/pr-120361/index.html
2. *references* to async closures do not implement `AsyncFn*`, as a consequence of the existing blanket impls of the shape `AsyncFn for F where F: Fn, F::Output: Future`.

In order to fix (1.), we implement `Fn` traits appropriately for async closures. It turns out that async closures can:
* always implement `FnOnce`, meaning that they're drop-in compatible with `FnOnce`-bound combinators like `Option::map`.
* conditionally implement `Fn`/`FnMut` if they have no captures, which means that existing usages of async closures should *probably* work without breakage (crater checking this: https://github.com/rust-lang/rust/pull/120712#issuecomment-1930587805).

In order to fix (2.), we make all of the built-in callables implement `AsyncFn*` via built-in impls, and instead adjust the blanket impls for `AsyncFn*` provided by libcore to match the blanket impls for `Fn*`.
2024-02-10 07:15:15 +00:00
..
async-closures
Auto merge of #120712 - compiler-errors:async-closures-harmonize, r=oli-obk
2024-02-10 07:15:15 +00:00
async-fn
Prefer AsyncFn* over Fn* for coroutine-closures
2024-02-08 15:46:00 +00:00
auxiliary
Add test
2023-01-19 15:46:08 +00:00
await-keyword
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
drop-order
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future-sizes
Coroutine variant fields can be uninitialized
2023-12-12 00:00:00 +00:00
in-trait
Rollup merge of #120103 - compiler-errors:concrete-afits, r=oli-obk
2024-02-08 09:06:32 +01:00
issues
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
multiple-lifetimes
Adjust tests for new drop and forget lints
2023-05-10 19:36:02 +02:00
return-type-notation
For a rigid projection, recursively look at the self type's item bounds
2024-02-09 00:13:51 +00:00
track-caller
Bless tests
2024-01-13 12:46:58 -05:00
argument-patterns.rs
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async-assoc-fn-anon-lifetimes.rs
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async-await-let-else.rs
Revert duplication of tests.
2023-09-23 13:34:07 +00:00
async-await-let-else.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
async-await.rs
Remove revisions for THIR unsafeck
2024-01-05 09:30:27 +00:00
async-block-control-flow-static-semantics.rs
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async-block-control-flow-static-semantics.stderr
adjust how closure/generator types and rvalues are printed
2023-09-21 22:20:58 +02:00
async-borrowck-escaping-block-error.fixed
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async-borrowck-escaping-block-error.rs
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async-borrowck-escaping-block-error.stderr
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async-borrowck-escaping-closure-error.rs
Bless tests, add comments
2024-02-06 02:22:58 +00:00
async-borrowck-escaping-closure-error.stderr
Bless tests, add comments
2024-02-06 02:22:58 +00:00
async-closure-matches-expr.rs
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async-closure.rs
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async-error-span.rs
Bless tests.
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async-error-span.stderr
Bless tests.
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async-fn-elided-impl-lifetime-parameter.rs
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async-fn-nonsend.rs
Bless tests.
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async-fn-nonsend.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
async-fn-path-elision.rs
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async-fn-path-elision.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
async-fn-send-uses-nonsend.rs
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async-fn-size-moved-locals.rs
Adjust compiler tests for unused_tuple_struct_fields -> dead_code
2024-01-02 15:34:37 -05:00
async-fn-size-uninit-locals.rs
Adjust compiler tests for unused_tuple_struct_fields -> dead_code
2024-01-02 15:34:37 -05:00
async-fn-size.rs
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async-is-unwindsafe.rs
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async-is-unwindsafe.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
async-matches-expr.rs
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async-trait-fn.rs
Stabilize AFIT and RPITIT
2023-10-13 21:01:36 +00:00
async-unsafe-fn-call-in-safe.rs
Stabilize THIR unsafeck
2024-01-05 10:00:59 +00:00
async-unsafe-fn-call-in-safe.stderr
Stabilize THIR unsafeck
2024-01-05 10:00:59 +00:00
async-with-closure.rs
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await-into-future.rs
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await-sequence.rs
Bless tests.
2023-09-23 13:47:30 +00:00
await-unsize.rs
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awaiting-unsized-param.rs
Revert duplication of tests.
2023-09-23 13:34:07 +00:00
awaiting-unsized-param.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
bound-normalization.rs
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clone-suggestion.fixed
Tweak await span
2023-04-27 17:18:11 +00:00
clone-suggestion.rs
Tweak await span
2023-04-27 17:18:11 +00:00
clone-suggestion.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
conditional-and-guaranteed-initialization.rs
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const-async-fn-in-main.rs
add test
2023-09-26 20:15:28 +00:00
const-async-fn-in-main.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
coroutine-desc.rs
Rename lots of files that had generator in their name
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coroutine-desc.stderr
Rename lots of files that had generator in their name
2023-10-20 21:14:02 +00:00
coroutine-not-future.rs
Rename lots of files that had generator in their name
2023-10-20 21:14:02 +00:00
coroutine-not-future.stderr
Rename lots of files that had generator in their name
2023-10-20 21:14:02 +00:00
debug-ice-attempted-to-add-with-overflow.rs
Add test for rust-lang#114912
2023-09-29 22:39:02 +10:00
debug-ice-attempted-to-add-with-overflow.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
deep-futures-are-freeze.rs
Normalize before checking if local is freeze in deduced_param_attrs
2023-08-17 14:33:24 -07:00
default-struct-update.rs
Bless tests.
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dont-print-desugared-async.rs
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dont-print-desugared-async.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
dont-suggest-await-on-method-return-mismatch.rs
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dont-suggest-await-on-method-return-mismatch.stderr
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2023-11-24 19:15:52 +01:00
dont-suggest-missing-await.rs
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dont-suggest-missing-await.stderr
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2023-11-24 19:15:52 +01:00
drop-and-assign.rs
Bless tests.
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drop-track-bad-field-in-fru.rs
Bless tests.
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drop-track-bad-field-in-fru.stderr
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2024-01-30 21:28:18 +00:00
drop-track-field-assign-nonsend.rs
Bless tests.
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drop-track-field-assign-nonsend.stderr
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2024-01-30 21:28:18 +00:00
drop-track-field-assign.rs
Bless tests.
2023-09-23 13:47:30 +00:00
drop-tracking-unresolved-typeck-results.rs
Bless tests.
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drop-tracking-unresolved-typeck-results.stderr
Add a note to duplicate diagnostics
2023-10-05 01:04:41 +00:00
edition-deny-async-fns-2015.rs
Stabilize AFIT and RPITIT
2023-10-13 21:01:36 +00:00
edition-deny-async-fns-2015.stderr
Stabilize AFIT and RPITIT
2023-10-13 21:01:36 +00:00
expansion-in-attrs.rs
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feature-async-closure.rs
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feature-async-closure.stderr
Bless tests
2024-01-13 12:46:58 -05:00
feature-async-for-loop.rs
Add additional tests and update existing tests
2023-12-19 16:12:17 -08:00
feature-async-for-loop.stderr
Bless tests
2024-01-13 12:46:58 -05:00
feature-self-return-type.rs
Stabilize impl_trait_projections
2023-09-08 03:45:36 +00:00
feature-self-return-type.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
field-assign-nonsend.rs
Revert duplication of tests.
2023-09-23 13:34:07 +00:00
field-assign-nonsend.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
field-assign.rs
Revert duplication of tests.
2023-09-23 13:34:07 +00:00
for-await-2015.rs
Add additional tests and update existing tests
2023-12-19 16:12:17 -08:00
for-await-consumes-iter.rs
Add additional tests and update existing tests
2023-12-19 16:12:17 -08:00
for-await-consumes-iter.stderr
Update test outputs
2023-12-22 11:01:07 -08:00
for-await-passthrough.rs
Remove unnecessary lets and borrowing from Waker::noop() usage.
2024-01-17 12:00:27 -08:00
for-await.rs
Remove unnecessary lets and borrowing from Waker::noop() usage.
2024-01-17 12:00:27 -08:00
future-contains-err-issue-115188.rs
More precisely detect cycle errors from type_of on opaque
2023-08-27 22:03:16 +00:00
future-contains-err-issue-115188.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
futures-api.rs
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generics-and-bounds.rs
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incorrect-move-async-order-issue-79694.fixed
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incorrect-move-async-order-issue-79694.rs
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incorrect-move-async-order-issue-79694.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
inference_var_self_argument.rs
Don't ICE when deducing future output if other errors already occurred
2024-01-17 16:27:57 +00:00
inference_var_self_argument.stderr
Don't ICE when deducing future output if other errors already occurred
2024-01-17 16:27:57 +00:00
interior-with-const-generic-expr.rs
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issue-54239-private-type-triggers-lint.rs
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issue-60709.rs
Remove asmjs from tests
2023-10-28 23:11:03 -07:00
issue-61076.rs
tweak logic of "unknown field" label
2023-11-18 00:40:11 +00:00
issue-61076.stderr
tweak logic of "unknown field" label
2023-11-18 00:40:11 +00:00
issue-61452.rs
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issue-61452.stderr
Do not set up wrong span for adjustments
2023-07-10 20:09:26 +00:00
issue-61793.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
issue-62658.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
issue-63832-await-short-temporary-lifetime-1.rs
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issue-63832-await-short-temporary-lifetime.rs
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issue-64130-1-sync.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-64130-1-sync.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
issue-64130-2-send.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-64130-2-send.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
issue-64130-3-other.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-64130-3-other.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
issue-64130-4-async-move.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-64130-non-send-future-diags.rs
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issue-64130-non-send-future-diags.stderr
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2024-01-30 21:28:18 +00:00
issue-64391.rs
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issue-65634-raw-ident-suggestion.edition2015.stderr
Move some tests
2024-02-09 15:43:08 -03:00
issue-65634-raw-ident-suggestion.edition2018.stderr
Move some tests
2024-02-09 15:43:08 -03:00
issue-65634-raw-ident-suggestion.rs
Move some tests
2024-02-09 15:43:08 -03:00
issue-66312.rs
Avoid a track_errors by bubbling up most errors from check_well_formed
2023-10-20 08:46:27 +00:00
issue-66312.stderr
Reorder check_item_type diagnostics so they occur next to the corresponding check_well_formed diagnostics
2024-01-02 14:17:56 +00:00
issue-66387-if-without-else.rs
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issue-66387-if-without-else.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-67252-unnamed-future.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-67252-unnamed-future.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
issue-67651.rs
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issue-67651.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-67765-async-diagnostic.rs
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issue-67765-async-diagnostic.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-68112.rs
Bless tests.
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issue-68112.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
issue-68523-start.rs
Change start to #[start] in some diagnosis
2023-09-22 15:58:43 +02:00
issue-68523-start.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-68523.rs
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issue-68523.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-69446-fnmut-capture.rs
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issue-69446-fnmut-capture.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-70594.rs
Eagerly return ExprKind::Err on yield/await in wrong coroutine context
2023-11-28 19:29:56 +00:00
issue-70594.stderr
Fix spans for bad await in inline const
2023-11-28 19:29:56 +00:00
issue-70818.rs
Revert duplication of tests.
2023-09-23 13:34:07 +00:00
issue-70818.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-70935-complex-spans.rs
Continue to borrowck even if there were previous errors
2024-02-08 08:10:43 +00:00
issue-70935-complex-spans.stderr
Continue to borrowck even if there were previous errors
2024-02-08 08:10:43 +00:00
issue-71137.rs
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issue-71137.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
issue-72442.rs
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issue-72442.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-72470-llvm-dominate.rs
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issue-72590-type-error-sized.rs
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issue-72590-type-error-sized.stderr
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2024-01-30 21:28:18 +00:00
issue-73050.rs
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issue-73137.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
issue-73541-1.rs
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issue-73541-1.stderr
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issue-73541-2.rs
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issue-73541-2.stderr
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issue-73541-3.rs
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issue-73541-3.stderr
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issue-73541.rs
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issue-73541.stderr
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2023-11-24 19:15:52 +01:00
issue-73741-type-err.rs
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issue-73741-type-err.stderr
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issue-74047.rs
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issue-74047.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-74072-lifetime-name-annotations.rs
Bless tests, add comments
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issue-74072-lifetime-name-annotations.stderr
Bless tests, add comments
2024-02-06 02:22:58 +00:00
issue-74497-lifetime-in-opaque.rs
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issue-74497-lifetime-in-opaque.stderr
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2023-11-24 19:15:52 +01:00
issue-75785-confusing-named-region.rs
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issue-75785-confusing-named-region.stderr
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2023-11-24 19:15:52 +01:00
issue-76547.rs
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issue-76547.stderr
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issue-77993-2.rs
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issue-77993-2.stderr
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2023-11-24 19:15:52 +01:00
issue-78115.rs
Move tests
2023-05-24 19:35:59 -03:00
issue-84841.rs
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issue-84841.stderr
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issue-86507.rs
Revert duplication of tests.
2023-09-23 13:34:07 +00:00
issue-86507.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
issue-93197.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-93648.rs
Bless tests.
2023-09-23 13:47:30 +00:00
issue-98634.rs
Tweak E0271 wording
2023-01-30 21:51:35 +00:00
issue-98634.stderr
Tweak await span
2023-04-27 17:18:11 +00:00
issue-101715.rs
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issue-101715.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
issue-105501.rs
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issue-107036.rs
Add test
2023-01-19 15:46:08 +00:00
issue-108572.fixed
Suggest pin!() instead of Pin::new() when appropriate
2023-08-14 19:41:57 +00:00
issue-108572.rs
Suggest pin!() instead of Pin::new() when appropriate
2023-08-14 19:41:57 +00:00
issue-108572.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
missed-capture-issue-107414.rs
Add more if let guard tests
2023-09-19 12:48:40 +00:00
move-part-await-return-rest-struct.rs
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move-part-await-return-rest-tuple.rs
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mutually-recursive-async-impl-trait-type.rs
Point out source of recursion
2024-01-08 20:30:24 +00:00
mutually-recursive-async-impl-trait-type.stderr
Make cycle error more resilient to where it starts
2024-01-08 20:30:24 +00:00
nested-in-impl.rs
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no-async-const.rs
Recover from incorrectly ordered/duplicated function keywords
2023-10-27 18:29:43 +00:00
no-async-const.stderr
Recover from incorrectly ordered/duplicated function keywords
2023-10-27 18:29:43 +00:00
no-const-async.rs
Remove identity_future indirection
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no-const-async.stderr
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2023-11-24 19:15:52 +01:00
no-move-across-await-struct.rs
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no-move-across-await-struct.stderr
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no-move-across-await-tuple.rs
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no-move-across-await-tuple.stderr
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no-non-guaranteed-initialization.rs
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no-non-guaranteed-initialization.stderr
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2023-11-24 19:15:52 +01:00
no-params-non-move-async-closure.rs
Async closures will move params into the future always
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no-std.rs
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no-unsafe-async.rs
Recover from incorrectly ordered/duplicated function keywords
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no-unsafe-async.stderr
Recover from incorrectly ordered/duplicated function keywords
2023-10-27 18:29:43 +00:00
non-trivial-drop.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
normalize-output-in-signature-deduction.rs
update use of feature flags
2023-12-14 15:22:37 +01:00
partial-drop-partial-reinit.rs
Rename in preparation for moving the async printing out of CoroutineSource
2023-10-25 16:37:14 +00:00
partial-drop-partial-reinit.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
partial-initialization-across-await.rs
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partial-initialization-across-await.stderr
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pin-needed-to-poll-2.rs
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pin-needed-to-poll-2.stderr
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pin-needed-to-poll.rs
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pin-needed-to-poll.stderr
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2023-11-24 19:15:52 +01:00
proper-span-for-type-error.fixed
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proper-span-for-type-error.rs
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proper-span-for-type-error.stderr
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2023-11-24 19:15:52 +01:00
recursive-async-impl-trait-type.rs
Point out source of recursion
2024-01-08 20:30:24 +00:00
recursive-async-impl-trait-type.stderr
Make cycle error more resilient to where it starts
2024-01-08 20:30:24 +00:00
repeat_count_const_in_async_fn.rs
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return-ty-raw-ptr-coercion.rs
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return-ty-unsize-coercion.rs
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send-bound-async-closure.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
suggest-missing-await-closure.fixed
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suggest-missing-await-closure.rs
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suggest-missing-await-closure.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
suggest-missing-await.rs
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suggest-missing-await.stderr
fix: improve the suggestion on future not awaited
2023-02-13 16:23:23 +01:00
suggest-switching-edition-on-await-cargo.rs
recover primary span label
2023-11-16 17:00:23 +00:00
suggest-switching-edition-on-await-cargo.stderr
recover primary span label
2023-11-16 17:00:23 +00:00
suggest-switching-edition-on-await.rs
recover primary span label
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suggest-switching-edition-on-await.stderr
recover primary span label
2023-11-16 17:00:23 +00:00
task-context-arg.rs
s/generator/coroutine/
2023-10-20 21:14:01 +00:00
try-on-option-in-async.rs
…
try-on-option-in-async.stderr
…
type-parameter-send.rs
…
unnecessary-await.rs
fix spans for removing .await on for expressions
2023-10-21 13:18:00 +02:00
unnecessary-await.stderr
Provide more context on derived obligation error primary label
2024-01-30 21:28:18 +00:00
unreachable-lint-1.rs
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unreachable-lint-1.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
unreachable-lint.rs
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unresolved_type_param.rs
Bless tests.
2023-09-23 13:47:30 +00:00
unresolved_type_param.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
unsized-across-await.rs
Revert duplication of tests.
2023-09-23 13:34:07 +00:00
unsized-across-await.stderr
Show number in error message even for one error
2023-11-24 19:15:52 +01:00
unused-lifetime.rs
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unused-lifetime.stderr
…