A retry and backoff mechanism for `std::future::Future`
Exponential backoff and retry for Rust.
QuickCheck bug hunting in Rust standard library data structures
The Rust package manager
manage cargo cache (${CARGO_HOME}, ~/.cargo/), print sizes of dirs and remove dirs selectively
Detects usage of unsafe Rust in a Rust crate and its dependencies.
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pull request commentrust-lang/rust
@JohnTitor, @petrochenkov, uh, I am really sorry for the breakage. :( My bad!
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issue closedjakubadamw/rutenspitz
Testing methods that accept slices is undocumented
It is very easy to test methods that return a slice - all I have to write is:
equal {
fn as_mut_slice(&mut self) -> &mut [T];
}
and rutenspitz takes care of the rest. However, methods accepting slices fail with cryptic errors:
equal {
fn extend_from_slice(&mut self, sli: &[T]);
}
gives:
error[E0277]: the size for values of type `[T]` cannot be known at compilation time
--> fuzz/src/bin/tinyvec.rs:29:51
|
29 | fn extend_from_slice(&mut self, sli: &[T]);
| ^^^ doesn't have a size known at compile-time
|
= help: the trait `std::marker::Sized` is not implemented for `[T]`
= note: no field of an enum variant may have a dynamically sized type
= help: change the field's type to have a statically known size
help: borrowed types always have a statically known size
|
29 | fn extend_from_slice(&mut self, sli: &&[T]);
| ^
help: the `Box` type always has a statically known size and allocates its contents in the heap
|
29 | fn extend_from_slice(&mut self, sli: &Box<[T]>);
| ^^^^ ^
Using &&[T] complains about lifetimes. &Box<[T]> works; it would be nice to document this somewhere - or even better, relax this restriction.
closed time in 3 months
Shnatsel
issue commentjakubadamw/rutenspitz
Testing methods that accept slices is undocumented
@Shnatsel, thanks for the report!
Well, I think unsized types such as slices deserve special casing for convenience, so I did just that in 203f8da22e.
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commit sha 203f8da22ec3c5a8b56b7f3544d615ef3232b25c
Add special-casing for slices as arguments to fuzzed operations
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pull request commentrust-fuzz/trophy-case
@Shnatsel, thank you, I'm honored! 🙂
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pull request commentLokathor/tinyvec
Fuzz: drop workarounds for operations that may panic
@Shnatsel, I used a regular lldb (HFUZZ_DEBUGGER=lldb cargo hfuzz run-debug …). In fact, I had issues with rust-lldb. 🙂 But yes, it is written with lldb in mind and perhaps could use some clarification.
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pull request commentLokathor/tinyvec
Fuzz: drop workarounds for operations that may panic
LGTM. 👍
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Update the name of one crate to the new one
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pull request commentjakubadamw/rutenspitz
@Shnatsel, this is fixed now. Try updating to 0.2.1.
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created tagjakubadamw/rutenspitz
А procedural macro to be used for testing/fuzzing stateful models against a semantically equivalent but obviously correct implementation
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commit sha 94934ea9b8e627da9bd4644554cf1a0d01b4aa17
Clippy.
commit sha c3761a6f09a102a4957ce8c981fa085bc67613c3
0.2.1
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commit sha 97d27d2a36fdc76d6572b1b271fdccced82f3f15
Install a panic hook to ignore panics within the catch_unwind closures While we're at it, split up the crates into two such that the other captures all the use-side dependencies, to make the macro a little more forward-compatible.
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pull request commentjakubadamw/rutenspitz
@Shnatsel, indeed, adding a std::panic::take_hook(); to the fuzz cycle solves the issue, though we really ought to install a hook that ignores the panics from within the closures. I'll try to fix this now. 🙂
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pull request commentjakubadamw/rutenspitz
@Shnatsel, oh dear. Yeah, this should have been tested. 🙂
It seems like https://github.com/rust-fuzz/honggfuzz-rs/blob/master/src/lib.rs#L261-L271 is the culprit. It won't be hard to update the hook such that it does not abort on panics arising from within the inner closures.
On the other hand, honggfuzz-rs does not install the hook in the debug mode, where I am also seeing an abort, which is strange.
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startedservo/rust-smallvec
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issue commentrust-lang/hashbrown
@jonhoo, I'm the maintainer of that project (which now has a proper name: rutenspitz), so if I could be of any assistance, please do cc me. :)
In the past I have used it to fuzz hashbrown, which is when I found the issue #113. I was however deemed the expected behavior. 🙂 The fuzzer can nonetheless be used as part of a regression suite, perhaps.
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Pull request review commentLokathor/tinyvec
Fix the fuzzers that stopped compiling
impl<T> RangeBounds<T> for ArbRange<T> { } impl<T: Arbitrary> Arbitrary for ArbRange<T> {
The whole impl can be removed in favour of a simple #[derive(Arbitrary)], as soon as a new version of arbitrary is released.
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Fix the fuzzers that stopped compiling
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issue commentrust-lang/rust
Inifinite loop in try_push_visible_item_path
This seems to be fixed. I verified both with the test case above and using the repro script from https://github.com/rust-lang/rust/issues/58430#issue-409902389.
@rustbot modify labels to +E-needs-test
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issue commentrust-lang/rust
ICE with the `(foo @ ..,)` pattern
@petrochenkov, this would normally be invalid syntax, much like in this case. The only reason it is accepted as far as the parsing, resolve and/or AST lowering is so that the error message is more informative. Therefore, while the syntactic form is carried over further into the compiler pipeline for this very purpose, it seems reasonable to reject/ignore some of its effects (like, indeed, not resolve the binding it introduces) as early as possible. Or perhaps I'm missing something?
This isn't to say the fix was ideal, which #74692 demonstrates. 🙂 Sorry for that!
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Bump `sha-1` to 0.9.
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created tagjakubadamw/rutenspitz
А procedural macro to be used for testing/fuzzing stateful models against a semantically equivalent but obviously correct implementation
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commit sha 4bcc90369f5e2afed5dc19848c70852643bfac86
0.2.0
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issue closedjakubadamw/rutenspitz
Test that operations equivalently panic
It would be useful to be able to specify that some methods are expected to sometimes panic, then have the running of those methods be wrapped in catch_unwind and the result of that compared to ensure both implementations either panic, or return the same result.
It may or may not be possible to continue running other operations after the methods panic, so these might need to be tagged somehow as to whether the data structure/operation is RefUnwindSafe.
closed time in 3 months
Nemo157
issue commentjakubadamw/rutenspitz
Test that operations equivalently panic
Closed by #7.
comment created time in 3 months
pull request commentjakubadamw/rutenspitz
Also compare panicking behavior
@Shnatsel, thanks again! ❤️ I'll close this now that #6 and #7 are merged in.
comment created time in 3 months
PR closed jakubadamw/rutenspitz
I've attempted to implement #2 but ended up in a weird lifetime hell, and could not resolve it by myself. I'm opening a WIP PR so that someone else might get a better starting point if they try to implement this.
The error is:
error[E0495]: cannot infer an appropriate lifetime for autoref due to conflicting requirements
--> src/tests/index_map.rs:168:16
|
168 | fn values_mut(&mut self) -> impl Iterator<Item = &mut V>;
| ^^^^^^^^^^
|
note: first, the lifetime cannot outlive the lifetime `'_` as defined on the body at 135:1...
--> src/tests/index_map.rs:135:1
|
135 | arbitrary_stateful_operations! {
| _-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
136 | | model = ModelHashMap<K, V>,
137 | | tested = IndexMap<K, V>,
138 | |
... |
170 | | }
171 | | }
| |_- in this macro invocation
note: ...so that closure can access `model`
--> src/tests/index_map.rs:135:1
|
135 | / arbitrary_stateful_operations! {
136 | | model = ModelHashMap<K, V>,
137 | | tested = IndexMap<K, V>,
138 | |
... |
170 | | }
171 | | }
| | ^ in this macro invocation
| |_|
|
note: but, the lifetime must be valid for the call at 135:1...
--> src/tests/index_map.rs:135:1
|
135 | / arbitrary_stateful_operations! {
136 | | model = ModelHashMap<K, V>,
137 | | tested = IndexMap<K, V>,
138 | |
... |
170 | | }
171 | | }
| | ^ in this macro invocation
| |_|
|
note: ...so type `std::result::Result<impl std::iter::Iterator, std::boxed::Box<(dyn std::any::Any + std::marker::Send + 'static)>>` of expression is valid during the expression
--> src/tests/index_map.rs:135:1
|
135 | / arbitrary_stateful_operations! {
136 | | model = ModelHashMap<K, V>,
137 | | tested = IndexMap<K, V>,
138 | |
... |
170 | | }
171 | | }
| | ^ in this macro invocation
| |_|
|
pr closed time in 3 months
issue openedjakubadamw/rutenspitz
Have a mode that crashes on all panics
So with #6 and #7 merged in rutenspitz no longer crashes in a fuzz cycle on a panic when both the implementation and the model panic in accordance. This change in behaviour is fine, since the main purpose of this crate is to observe the equivalence of two models. But I think it may be useful to use it also to find panics on malformed input (well, a series of operations to a model). This is exactly what the url::Url fuzzer fuzzer did, although it did in a rather convoluted way by using url::Url as the supposed doppelganger of url::Url itself.
Rather than doing that we should have a mode which turns of all comparisons, essentially always using https://github.com/jakubadamw/rutenspitz/blob/ff2c1b27cf2adba4d354dcf18e2877a9fc9c4ee5/lib/src/lib.rs#L482-L486 for individual operation tests, without using (and requiring) a model at all.
This is perhaps somewhat out of scope given the name of this crate but nonetheless seems like a useful extension.
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cargo fmt
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Merge remote-tracking branch 'Soveu/master' into panic-equivalence
commit sha 9a3dc8ac491939770029c43ddd472a47c720b968
A minor clean-up with a fix to the outcome handling logic
commit sha bddb0435ccee0746f374e9b724c1b66dd5bc739d
In the debug mode carry over the debug representations of return values
commit sha b71c119ccf81147ce5738c5e1a538da970dd2e97
Clippy.
commit sha f1f37fffc44468c9453945b3582f0328fbb57ce3
A minor naming correction
commit sha a693cc4cea9dc2f31a5fc5db3eb96df4724085f0
Avoid unnecessary clones
commit sha 97f384e1a807d5865042d05eeeefedd6055a20f2
Merge branch 'master' into panic-equivalence
commit sha 71033c77c96a08cb443b026cfb5469109c17100d
Remove the redundant Clone derive
commit sha ff2c1b27cf2adba4d354dcf18e2877a9fc9c4ee5
Merge pull request #7 from jakubadamw/panic-equivalence Panic equivalence
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PR merged jakubadamw/rutenspitz
The continuation of #6.
First of all, thank you, @Soveu, for your changes, and @Plecra and @Shnatsel – for your input and past attempts. 🙂
This is essentially a slightly corrected and somewhat cleaned-up version of #6. I also made it carry over the debug representations of compared values when cfg(fuzzing_debug) is enabled.
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pull request commentjakubadamw/rutenspitz
Yeah, it'd close automatically once I merge that one, which I'll do once it goes green. 🙂
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Remove the redundant Clone derive
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Fix the fuzz targets in debug mode
commit sha 238fbaf5a003de123e7210b7a039ec87ae4d91f2
Build the targets in debug mode in CI
commit sha e93dbfd7dff095dc1bcc44edb361bfc42c2304e8
Remove cargo-audit, it's not very useful for us
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Merge branch 'master' into panic-equivalence
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Remove cargo-audit, it's not very useful for us
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Avoid unnecessary clones
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Fix the fuzz targets in debug mode
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Build the targets in debug mode in CI
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A minor naming correction
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pull request commentjakubadamw/rutenspitz
@Soveau, thanks very much for this PR, and @Plecra for the input.
I cleaned it up and addressed the issued described in this comment.
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commit sha 04a6f4d81974eabd2fa45d51ac8e6608559652c8
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commit sha 8da1c8110e1ff09c78a25d88bccdee01b7f49bbf
cargo fmt
commit sha 65ad3d30fdb7cd10c4bc7ead5217c8fb6fe72aea
Merge remote-tracking branch 'Soveu/master' into panic-equivalence
commit sha 9a3dc8ac491939770029c43ddd472a47c720b968
A minor clean-up with a fix to the outcome handling logic
commit sha bddb0435ccee0746f374e9b724c1b66dd5bc739d
In the debug mode carry over the debug representations of return values
commit sha b71c119ccf81147ce5738c5e1a538da970dd2e97
Clippy.
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PR opened jakubadamw/rutenspitz
The continuation of #6.
First of all, thank you, @Soveu, for your changes, and @Plecra and @Shnatsel – for your input and past attempts. 🙂
This is essentially a slightly corrected and somewhat cleaned-up version of #6. I also made it carry over the debug representations of compared values when cfg(fuzzing_debug) is enabled.
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commit sha dc49da04fc9ef5f964c436d53faf0fefa177c9ca
Add DEBUGGING.md
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Fix capacity for the HashMap
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pull request commentjakubadamw/rutenspitz
Also compare panicking behavior
@Shnatsel, well, adding .cloned() to the v.get_mut(999) call does the trick. 🙂 Sorry, I of course talked gibberish about the moving, I think I may have forgotten the gist of the issue by now. 🙂 So cloning return values of all operations and moving them out of the closure is one plausible solution. It'd require adding a special trait because we can't just Clone: for Option values, for example, we need the inner value cloned (via the cloned() method, indeed). Then the're the special handling of iterators… And it'll make the whole fuzzing process slower. But it's doable.
I can take a look. 🙂
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pull request commentjakubadamw/rutenspitz
Also compare panicking behavior
@Shnatsel, apologies for not getting back to you about this PR. I had looked at it briefly. The problem is the way the PR is written we're moving the instance of the structure being tested into the closure, which we can't do because there's only one of it. I think we'd have to store it in a RefCell to make it work but maybe I'm wrong.
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pull request commentrust-lang/rust
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
@nagisa, pardon, this will need one more r+, as I had to tidy up the style per the failed build. 🙂
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pull request commentmozilla/sccache
Add support for key prefixes when using S3 as the storage
This looks reasonable, but please fix up the formatting errors in the Travis logs.
Done! 🙂
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One more sentence in the README
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Fix the link
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Clippy.
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Fix up style
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created tagjakubadamw/rutenspitz
А procedural macro to be used for testing/fuzzing stateful models against a semantically equivalent but obviously correct implementation
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created tagjakubadamw/rutenspitz
А procedural macro to be used for testing/fuzzing stateful models against a semantically equivalent but obviously correct implementation
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commit sha 6ce71346d3e67de221a67d0104e852e98b5cf150
0.1.2
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Update the licenses.
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Get the READMEs in sync.
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commit sha dcdbc882192a583c64dc899058fdce079d99d316
Address Clippy issues.
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Update the workflow.
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commit sha f5e5eb6f46ef2cf0dd45dba4f975305509334fc6
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
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Update the README.
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commit sha 5c74f20da6cedc4975596f2121087710b824771b
Rename the crate
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Update the dependencies
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issue closedjakubadamw/rutenspitz
This crate certainly needs a neater name.
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jakubadamw
issue openedjakubadamw/arbitrary-model-tests
This crate certainly needs a neater name.
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Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
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pull request commentrust-lang/rust
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
@nagisa, okay, I brought back the initial version. 🙂
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Pull request review commentrust-lang/rust
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
impl<'a, 'hir> LoweringContext<'a, 'hir> { Applicability::MaybeIncorrect, ) .emit();- break;
@nagisa, thanks! I had the same idea, but in this very case that wouldn't help, because we're already past name resolution.
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pull request commentrust-lang/rust
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
@nagisa, thank you. Looks like I stepped on your toes by pushing after your r+, sorry! 🙂 Yeah, I agree the first solution gives nicer results (although implementation wise it's not as simple as the second one). Should we await input from @rust-lang/wg-diagnostics or go ahead with the first approach? If the latter, then I can take back the redundant commits.
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Simplify the fix
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pull request commentrust-lang/rust
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
@JohnTitor, right! So I actually tried an alternate approach that would amount to removing the break and the rest assignment from that case:
PatKind::Ident(ref _bm, ident, Some(ref sub)) if sub.is_rest() => {
- rest = Some((idx, pat.span));
let sp = pat.span;
self.diagnostic()
.struct_span_err(
@@ -128,7 +127,6 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
Applicability::MaybeIncorrect,
)
.emit();
- break;
}
But this leads to diagnostics that are, in my opinion, degraded compared to the status quo.
error: `x @` is not allowed in a tuple struct
--> $DIR/issue-74539.rs:9:13
|
LL | x @ ..
| ^^^^^^ this is only allowed in slice patterns
|
= help: remove this and bind each tuple field independently
help: if you don't need to use the contents of x, discard the tuple's remaining fields
|
LL | ..
| ^^
error: `..` patterns are not allowed here
--> $DIR/issue-74539.rs:9:17
|
LL | x @ ..
| ^^
|
= note: only allowed in tuple, tuple struct, and slice patterns
error[E0023]: this pattern has 1 field, but the corresponding tuple variant has 2 fields
--> $DIR/issue-74539.rs:8:9
|
LL | A(u8, u8),
| --------- tuple variant defined here
...
LL | / E::A(
LL | | x @ ..
LL | | ) => { x }
| |_________^ expected 2 fields, found 1
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0023`.
We end up with two extra diagnostics which are not very useful.
comment created time in 3 months
Pull request review commentrust-lang/rust
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
+enum E {+ A(u8, u8),+}++fn main() {+ let e = E::A(2, 3);+ match e {+ E::A(x @ ..) => { //~ ERROR `x @` is not allowed in a tuple+ x //~ ERROR cannot find value `x` in this scope
@JohnTitor, this is a consequence of the nature of the fix. But I think you're right, this should be done differently.
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issue commentrust-lang/rust
ICE with the `@ ..` binding pattern
@JohnTitor, okay, thanks. 🙂
Better late than never…
@rustbot claim
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pull request commentrust-lang/rust
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
@JohnTitor, oh, I see in https://github.com/rust-lang/rust/issues/74539#issuecomment-661031765 that you had another solution in mind? :)
@jakubadamw Great! You should tweak
src/librustc_ast_lowering/pat.rsnot losing diags. For further reference, you could do@rustbot claimwhen you work on an issue to avoid conflicts.
What do you mean by “not losing diags”? The thing is that AST lowering runs after name resolution. How else could it “poison” that particular invalid binding? Sorry, I don't know the compiler very well, it's been years since. 🙂
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commit sha 249e07b237bd3049eb7fd94afe450b7c09b6a3d9
Short documentation for the false keyword
commit sha ba6857d801b6217a190e92e43cacd8468ff2d72a
Document the trait keyword
commit sha 18be370342c9b2a93f1d56b2b674bd2fbdcbb019
Add core::ready! macro
commit sha c38230e3b639783483277465ff3c3436a8fd5545
Deny unsafe op in unsafe functions in libstd/alloc.rs
commit sha afbfe603fc1c288a0cff63b3b1cad43902a66e9b
Remove combine function Comparing two array directly helps generate better assert message
commit sha 75748a4116c1d3bbdedd9d2f9c1cf95d9f4d9df7
ci: Update dist-{i686,x86_64}-linux to Debian 6 This increases the minimum `{i686,x86_64}-unknown-linux-gnu` platform from RHEL/CentOS 5 (glibc 2.5 and kernel 2.6.18) to a slightly newer Debian 6 `squeeze` (glibc 2.11 and kernel 2.6.32). While that release is already EOL, it happens to match the minimum common versions of two enterprise distros that do still need Rust support -- RHEL 6 (glibc 2.12 and kernel 2.6.32) and SLES 11 SP4 (glibc 2.11 and kernel 3.0).
commit sha 48ec236c8c7c5a32077c465eb254646a9860f802
start GBA file.
commit sha cac1768b03c8d6673c51605dca03997876979d68
First cut of `std::lazy` module
commit sha 237a97760ad79a21ce0655b9f5adc0cc5b5cbc79
integrate Lazy into std layout This commit refactors the initial implementation to fit into std and makes some other changes: - use MaybeUninit internally in SyncOnceCell - correctly impl Drop for lazy::Once - port Lazy::take from once_cell from: https://github.com/matklad/once_cell/pull/100 Co-Authored-By: Paul Dicker <[email protected]>
commit sha d1263f5e66d31ad170c524a70aa5f21e08474326
use set() in SyncOnceCell::from
commit sha d1017940d77f35f841008c3e108e3da5e48a592f
remove inlined lazy::Waiter in favor of sync::Once
commit sha 1f1cda65d9a5c88855d3fbcb3912095474e557de
appease tidy
commit sha 8a2f147b5b9756e67dc2299777b8b534bbd73d0b
Fix small nits, clarfying some confusing vocabulary and using more consistent wording
commit sha e190bdf710101d8fdf12195dcc73749719a57e72
fill in all those options.
commit sha ab23a2a9c54fed2acbd553407a761f19af6e8ed4
ci: Set `shell: bash` as a default, remove duplicates A follow-up to #74406, this commit merely removes the `shell: bash` lines where they are explicitly added in favor of setting defaults for *all* "run" steps. Signed-off-by: Kristofer Rye <[email protected]>
commit sha 9c4ac7395953435a5f39cfaf93c7679df068bade
Docs clarifications.
commit sha 72fa7f82503d4eb3c09e5dce600ac044c2835688
Add to supported_targets list.
commit sha 66a3d6859ba8cca6eab614014c001a0ef4be9809
fix the imports.
commit sha b26ecd261b827837df8bb01c8fd5bf80dced8909
Test codegen of compare_exchange operations
commit sha 7cbff846edcedc7ab9d0dfd82e6f711fe99e2520
Resolve https://github.com/rust-lang/rust/pull/74419#discussion_r456141344
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commit sha db77a9e516ad37a730c19e3c008c7279b5767aa7
Fix an ICE on an invalid `binding @ ...` in a tuple struct pattern
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