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bors b3f75cc872 Auto merge of #132147 - estebank:long-types-2, r=davidtwco 
Tweak E0277 output when a candidate is available

*Follow up to #132086.*

Go from

```
error[E0277]: the trait bound `Then<Ignored<chumsky::combinator::Filter<chumsky::primitive::Any<&str, chumsky::extra::Full<EmptyErr, (), ()>>, {closure@src/main.rs:9:17: 9:27}>, char>, chumsky::combinator::Map<impl CSTParser<'a, O>, O, {closure@src/main.rs:11:24: 11:27}>, (), (), chumsky::extra::Full<EmptyErr, (), ()>>: CSTParser<'a>` is not satisfied
 --> src/main.rs:7:50
  |
7 | fn leaf<'a, O>(parser: impl CSTParser<'a, O>) -> impl CSTParser<'a, ()> {
  |                                                  ^^^^^^^^^^^^^^^^^^^^^^ the trait `chumsky::private::ParserSealed<'_, &str, (), chumsky::extra::Full<EmptyErr, (), ()>>` is not implemented for `Then<Ignored<Filter<Any<&str, ...>, ...>, ...>, ..., ..., ..., ...>`, which is required by `Then<Ignored<chumsky::combinator::Filter<chumsky::primitive::Any<&str, chumsky::extra::Full<EmptyErr, (), ()>>, {closure@src/main.rs:9:17: 9:27}>, char>, chumsky::combinator::Map<impl CSTParser<'a, O>, O, {closure@src/main.rs:11:24: 11:27}>, (), (), chumsky::extra::Full<EmptyErr, (), ()>>: CSTParser<'a>`
  |
  = help: the trait `chumsky::private::ParserSealed<'_, &'a str, ((), ()), chumsky::extra::Full<EmptyErr, (), ()>>` is implemented for `Then<Ignored<chumsky::combinator::Filter<chumsky::primitive::Any<&str, chumsky::extra::Full<EmptyErr, (), ()>>, {closure@src/main.rs:9:17: 9:27}>, char>, chumsky::combinator::Map<impl CSTParser<'a, O>, O, {closure@src/main.rs:11:24: 11:27}>, (), (), chumsky::extra::Full<EmptyErr, (), ()>>`
  = help: for that trait implementation, expected `((), ())`, found `()`
  = note: required for `Then<Ignored<Filter<Any<&str, ...>, ...>, ...>, ..., ..., ..., ...>` to implement `Parser<'_, &str, ()>`
note: required for `Then<Ignored<Filter<Any<&str, ...>, ...>, ...>, ..., ..., ..., ...>` to implement `CSTParser<'a>`
 --> src/main.rs:5:16
  |
5 | impl<'a, O, T> CSTParser<'a, O> for T where T: Parser<'a, &'a str, O> {}
  |                ^^^^^^^^^^^^^^^^     ^          ---------------------- unsatisfied trait bound introduced here
  = note: the full name for the type has been written to '/home/gh-estebank/longlong/target/debug/deps/longlong-0008f9a4f2023b08.long-type-13239977239800463552.txt'
  = note: consider using `--verbose` to print the full type name to the console
  = note: the full name for the type has been written to '/home/gh-estebank/longlong/target/debug/deps/longlong-0008f9a4f2023b08.long-type-13239977239800463552.txt'
  = note: consider using `--verbose` to print the full type name to the console
```

to

```
error[E0277]: the trait bound `Then<Ignored<chumsky::combinator::Filter<chumsky::primitive::Any<&str, chumsky::extra::Full<EmptyErr, (), ()>>, {closure@src/main.rs:9:17: 9:27}>, char>, chumsky::combinator::Map<impl CSTParser<'a, O>, O, {closure@src/main.rs:11:24: 11:27}>, (), (), chumsky::extra::Full<EmptyErr, (), ()>>: CSTParser<'a>` is not satisfied
  --> src/main.rs:7:50
   |
7  | fn leaf<'a, O>(parser: impl CSTParser<'a, O>) -> impl CSTParser<'a, ()> {
   |                                                  ^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
...
11 |     ws.then(parser.map(|_| ()))
   |     --------------------------- return type was inferred to be `Then<Ignored<..., ...>, ..., ..., ..., ...>` here
   |
   = help: the trait `ParserSealed<'_, &_, (), Full<_, _, _>>` is not implemented for `Then<Ignored<..., ...>, ..., ..., ..., ...>`
           but trait `ParserSealed<'_, &'a _, ((), ()), Full<_, _, _>>` is implemented for it
   = help: for that trait implementation, expected `((), ())`, found `()`
   = note: required for `Then<Ignored<..., ...>, ..., ..., ..., ...>` to implement `Parser<'_, &str, ()>`
note: required for `Then<Ignored<..., ...>, ..., ..., ..., ...>` to implement `CSTParser<'a>`
  --> src/main.rs:5:16
   |
5  | impl<'a, O, T> CSTParser<'a, O> for T where T: Parser<'a, &'a str, O> {}
   |                ^^^^^^^^^^^^^^^^     ^          ---------------------- unsatisfied trait bound introduced here
   = note: the full name for the type has been written to '/home/gh-estebank/longlong/target/debug/deps/longlong-df9d52be87eada65.long-type-1337037744507305372.txt'
   = note: consider using `--verbose` to print the full type name to the console
```

* Remove redundant wording
* Introduce trait diff highlighting logic and use it
* Fix incorrect "long type written to path" logic (can be split off)
* Point at tail expression in more cases in E0277
* Avoid long primary span labels in E0277 by moving them to a `help`

Fix #132013.

There are individual commits that can be their own PR. If the review load is too big, happy to split them off.
2024-11-02 20:22:49 +00:00
..
abi tests: use minicore in tests/ui/abi/compatibility.rs as an example 2024-10-31 18:20:11 +08:00
alloc-error
allocator UI tests: Rename "object safe" to "dyn compatible" 2024-10-10 01:13:29 +02:00
annotate-snippet
anon-params More accurate span for anonymous argument suggestion 2024-07-18 00:19:27 +00:00
argfile compiletest: add enable-by-default check-cfg 2024-05-04 11:30:38 +02:00
argument-suggestions Added more scenarios where commas need to be removed 2024-10-20 17:14:53 +08:00
array-slice-vec Tweak more warnings. 2024-10-28 14:20:28 +11:00
asm Fix clobber_abi and disallow SVE-related registers in Arm64EC inline assembly 2024-10-14 05:30:45 +09:00
associated-consts Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
associated-inherent-types Get rid of predicates_defined_on 2024-08-24 18:25:41 -04:00
associated-item Compiler: Rename "object safe" to "dyn compatible" 2024-09-25 13:26:48 +02:00
associated-type-bounds Actually capture all in-scope lifetimes. 2024-10-30 16:22:23 +00:00
associated-types Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
async-await Auto merge of #132147 - estebank:long-types-2, r=davidtwco 2024-11-02 20:22:49 +00:00
attributes misapplied optimize attribute throws a compilation error (#128488) 2024-10-20 08:34:15 -06:00
auto-traits Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
autodiff Add pretty, ui, and feature-gate tests for the enzyme/autodiff frontend 2024-10-11 20:38:43 +02:00
autoref-autoderef
auxiliary Move 100 entries from tests/ui into subdirs 2024-05-20 19:55:59 -07:00
backtrace Emscripten: Xfail backtrace ui tests 2024-10-16 12:22:14 +02:00
bench
binding Update tests for hidden references to mutable static 2024-09-13 14:10:56 +03:00
binop Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
blind Accurate use rename suggestion span 2024-07-18 00:00:04 +00:00
block-result Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
borrowck Re-do recursive const stability checks 2024-10-25 20:31:40 +02:00
box Mention when type parameter could be Clone 2024-04-24 22:21:15 +00:00
btreemap Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck 2024-07-26 14:41:56 -04:00
builtin-superkinds
c-variadic Check ABI target compatibility for function pointers 2024-09-23 14:04:22 +02:00
cast Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
cfg Handle gracefully true/false in cfg(target(..)) compact 2024-10-16 09:41:49 +02:00
check-cfg Rollup merge of #131168 - madsmtm:target-info-psx-os, r=davidtwco 2024-10-31 17:50:40 -07:00
closure_context
closure-expected-type
closures Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
cmse-nonsecure improve error messages for C-cmse-nonsecure-entry functions 2024-10-14 22:32:32 +02:00
codegen move strict provenance lints to new feature gate, remove old feature gates 2024-10-21 15:22:17 +01:00
codemap_tests Update tests 2024-08-10 12:07:17 +02:00
coercion Check allow instantiating object trait binder when upcasting and in new solver 2024-09-26 22:26:29 -04:00
coherence Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
coinduction
command Fix must_use lint for command exec tests 2024-10-17 06:33:35 -07:00
compare-method show unit output when there is only output diff in diagnostics 2024-07-06 21:00:30 +08:00
compiletest-self-test tests/ui: add minicore compiletest self-test 2024-10-31 18:20:11 +08:00
conditional-compilation Return earlier in some cases in collect_token. 2024-08-23 14:40:08 +10:00
confuse-field-and-method
const_prop Allow type_of to return partially non-error types if the type was already tainted 2024-05-28 11:55:20 +00:00
const-generics On long E0277 primary span label, move it to a help 2024-11-02 03:08:04 +00:00
const-ptr on a signed deref check, mention the right pointer in the error 2024-08-01 14:25:19 +02:00
consts Add missing backtick 2024-11-01 16:53:36 +08:00
coroutine fix tests 2024-11-02 16:58:50 +00:00
coverage-attr Rename directive needs-profiler-support to needs-profiler-runtime 2024-10-09 20:58:27 +11:00
crate-loading
cross
cross-crate Closures are recursively reachable 2024-06-04 22:50:35 +02:00
custom_test_frameworks
cycle-trait
debuginfo TL note: current means target 2024-09-20 10:02:14 -07:00
definition-reachable
delegation Hack out effects support for old solver 2024-10-28 21:42:14 +00:00
dep-graph
deployment-target Avoid a couple of unnecessary EarlyDiagCtxt uses 2024-06-22 17:06:47 +00:00
deprecation Deprecate no-op codegen option -Cinline-threshold=... 2024-06-14 20:25:17 +02:00
deref-patterns Move some tests 2024-04-21 15:43:43 -03:00
derived-errors
derives Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
deriving Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
dest-prop
destructuring-assignment
diagnostic_namespace Add trait diff highlighting logic and use it in E0277 2024-11-02 03:08:04 +00:00
diagnostic-flags tests: remove few ignore-stage2 2024-04-25 10:48:11 +03:00
diagnostic-width
did_you_mean Rollup merge of #130826 - fmease:compiler-mv-obj-safe-dyn-compat, r=compiler-errors 2024-09-27 21:35:08 +02:00
directory_ownership
disallowed-deconstructing
dollar-crate
drop Rollup merge of #131984 - dingxiangfei2009:stabilize-if-let-rescope, r=traviscross,lcnr 2024-10-29 18:38:57 +01:00
drop-bounds
dropck Hack out effects support for old solver 2024-10-28 21:42:14 +00:00
dst Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
duplicate Explicitly mark a hack as a HACK and elaborate its comment 2024-09-18 19:36:44 +02:00
dyn-compatibility Don't assume traits used as type are trait objs 2024-10-11 17:36:04 +02:00
dyn-drop
dyn-keyword Don't assume traits used as type are trait objs 2024-10-11 17:36:04 +02:00
dyn-star unify dyn* coercions with other pointer coercions 2024-09-24 22:17:55 +02:00
dynamically-sized-types
editions And also suggest for qpaths 2024-11-01 01:46:23 +00:00
empty Suggest the struct variant pattern syntax on usage of unit variant pattern for a struct variant 2024-08-28 22:55:57 +09:00
entry-point
enum More accurate suggestions when writing wrong style of enum variant literal 2024-07-18 18:20:35 +00:00
enum-discriminant Update tests 2024-08-10 12:07:17 +02:00
env-macro
error-codes Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
error-emitter tests: remove some trailing ws 2024-04-27 10:54:31 +03:00
errors Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
explicit
explicit-tail-calls doc fixups from review 2024-07-07 18:16:38 +02:00
expr More accurate suggestions when writing wrong style of enum variant literal 2024-07-18 18:20:35 +00:00
extern Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
extern-flag Rollup merge of #125913 - fmease:early-lints-spruce-up-some-diags, r=Nadrieril 2024-06-11 09:14:34 +01:00
feature-gates Rollup merge of #132157 - estebank:long-types-3, r=jieyouxu 2024-10-29 18:38:58 +01:00
ffi-attrs Move 100 entries from tests/ui into subdirs 2024-05-20 19:55:59 -07:00
float move f16/f128 const fn under f16/f128 feature gate 2024-10-05 10:13:18 +02:00
fmt Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
fn Enforce supertrait outlives obligations hold when confirming impl 2024-08-05 09:55:14 -04:00
fn-main Move 100 entries from tests/ui into subdirs 2024-05-20 19:55:59 -07:00
for Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
for-loop-while Update tests for hidden references to mutable static 2024-09-13 14:10:56 +03:00
foreign Don't ICE on Fn trait error for foreign fn 2024-08-16 14:10:06 -04:00
fuel Move 100 entries from tests/ui into subdirs 2024-05-20 19:55:59 -07:00
fully-qualified-type
function-pointer Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
functional-struct-update Update tests for hidden references to mutable static 2024-09-13 14:10:56 +03:00
functions-closures
generic-associated-types Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
generic-const-items Add trait diff highlighting logic and use it in E0277 2024-11-02 03:08:04 +00:00
generics elided_named_lifetimes: bless & add tests 2024-08-31 15:35:42 +03:00
half-open-range-patterns On function and method calls in patterns, link to the book 2024-10-06 01:44:59 +00:00
hashmap
hello_world
higher-ranked Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
hygiene Bless a test for #70963 2024-09-20 01:20:10 +03:00
illegal-sized-bound
impl-header-lifetime-elision And more general error 2024-05-24 11:20:33 -04:00
impl-trait Auto merge of #132147 - estebank:long-types-2, r=davidtwco 2024-11-02 20:22:49 +00:00
implied-bounds Adjust tests 2024-09-05 06:37:38 -04:00
imports skip updating when external binding is existed 2024-08-20 20:34:13 +08:00
include-macros diagnostics: fix crash on completely empty included file 2024-03-29 18:22:44 -07:00
incoherent-inherent-impls Fix remaining cases 2024-06-21 19:00:18 -04:00
indexing Trim output of E0277 in some cases 2024-11-02 03:08:04 +00:00
inference On implicit Sized bound on fn argument, point at type instead of pattern 2024-09-27 00:45:02 +00:00
infinite only query params_in_repr if def kind is adt 2024-10-02 17:36:31 +08:00
inherent-impls-overlap-check
inline-const stabilize const_mut_refs 2024-09-15 09:51:32 +02:00
instrument-coverage coverage. Adapt to mcdc mapping formats introduced by llvm 19 2024-10-08 11:15:24 +08:00
instrument-xray
interior-mutability Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
internal stabilize const_fn_floating_point_arithmetic 2024-08-22 08:25:54 +02:00
internal-lints Use the rustc_private libc less in tests 2024-04-15 08:54:11 -04:00
intrinsics Hack out effects support for old solver 2024-10-28 21:42:14 +00:00
invalid
invalid-compile-flags rust_for_linux: -Zregparm=<N> commandline flag for X86 (#116972) 2024-10-18 00:29:31 +07:00
invalid-module-declaration
invalid-self-argument
io-checks Always use a colon in //@ normalize-*: headers 2024-07-11 12:23:44 +10:00
issues Trim output of E0277 in some cases 2024-11-02 03:08:04 +00:00
iterators Trim output of E0277 in some cases 2024-11-02 03:08:04 +00:00
json Annotate input reference tests 2024-10-30 16:47:47 -07:00
keyword Structured suggestion for extern crate foo when foo isn't resolved in import 2024-07-29 23:49:51 +00:00
kindck Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
label Make parse error suggestions verbose and fix spans 2024-07-12 03:02:57 +00:00
lang-items Let InstCombine remove Clone shims inside Clone shims 2024-07-25 15:14:42 -04:00
late-bound-lifetimes Revert suggestion verbosity change 2024-07-22 22:51:53 +00:00
layout tests: Bless rustc_abi::Abi::Aggregate => ::Memory 2024-10-30 01:41:31 -07:00
lazy-type-alias Don't call const normalize in error reporting 2024-09-22 13:55:06 -04:00
lazy-type-alias-impl-trait
let-else Make ; suggestions inline 2024-07-12 03:22:32 +00:00
lexer Annotate input reference tests 2024-10-30 16:47:47 -07:00
lifetimes Point at tail expression on rpit E0277 2024-11-02 03:08:04 +00:00
limits TL note: current means target 2024-09-20 10:02:14 -07:00
linkage-attr port tests/ui/linkage-attr/framework to run-make 2024-10-27 21:23:28 -04:00
lint Auto merge of #132147 - estebank:long-types-2, r=davidtwco 2024-11-02 20:22:49 +00:00
liveness Better span for "make binding mutable" suggestion 2024-07-04 02:02:21 +00:00
loops Fix ... in multline code-skips in suggestions 2024-06-20 04:25:17 +00:00
lowering Change wording 2024-04-29 14:53:38 +02:00
lto Update tests for hidden references to mutable static 2024-09-13 14:10:56 +03:00
lub-glb
macro_backtrace
macros Annotate input reference tests 2024-10-30 16:47:47 -07:00
malformed Be more accurate about calculating display_col from a BytePos 2024-07-18 20:08:38 +00:00
manual Make more of the test suite run on Mac Catalyst 2024-05-28 12:31:33 +02:00
marker_trait_attr Always make inductive cycles as ambig during typeck 2024-03-31 20:44:30 -04:00
match Match ergonomics 2024: test type inference 2024-07-05 11:17:49 -04:00
meta Remap path refix in the panic message 2024-10-12 09:41:42 +08:00
methods Don't give method suggestions when method probe fails due to bad impl of Deref 2024-09-29 11:57:18 -04:00
mir Add a regression test for #132353 2024-10-31 13:12:22 +08:00
mir-dataflow
mismatched_types Use wide pointers consistenly across the compiler 2024-10-04 14:06:48 +02:00
missing
missing_non_modrs_mod
missing-trait-bounds Use fulfillment, not evaluate, during method probe 2024-04-21 20:10:12 -04:00
modules Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
modules_and_files_visibility
moves Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck 2024-07-26 14:41:56 -04:00
mut Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
namespace Tweak output of import suggestions 2024-06-13 20:22:21 +00:00
native-library-link-flags Always use a colon in //@ normalize-*: headers 2024-07-11 12:23:44 +10:00
never_type Point at tail expression on rpit E0277 2024-11-02 03:08:04 +00:00
nll stabilize if_let_rescope 2024-10-24 04:33:14 +08:00
no_std
non_modrs_mods
non_modrs_mods_and_inline_mods
not-panic Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
numbers-arithmetic Don't call const normalize in error reporting 2024-09-22 13:55:06 -04:00
numeric Tweak "field not found" suggestion when giving struct literal for tuple struct type 2024-07-18 18:20:35 +00:00
object-lifetime Hack around a conflict with clippy::needless_lifetimes 2024-09-06 17:06:35 +03:00
obsolete-in-place
offset-of Rollup merge of #132332 - nnethercote:use-token_descr-more, r=estebank 2024-10-30 06:40:36 +01:00
on-unimplemented Trim output of E0277 in some cases 2024-11-02 03:08:04 +00:00
operator-recovery Make parse error suggestions verbose and fix spans 2024-07-12 03:02:57 +00:00
or-patterns Tweak more warnings. 2024-10-28 14:20:28 +11:00
overloaded
packed stabilize raw_ref_op 2024-08-18 19:46:53 +02:00
panic-handler fix typo in 'lang item with track_caller' message 2024-10-05 17:12:46 +02:00
panic-runtime Enable a few tests on macOS 2024-05-28 12:31:12 +02:00
panics Add and adapt tests 2024-09-27 14:40:38 +01:00
parallel-rustc
parser Annotate input reference tests 2024-10-30 16:47:47 -07:00
patchable-function-entry Updated diagnostic messages 2024-06-27 22:24:36 +02:00
pattern Rollup merge of #131381 - Nadrieril:min-match-ergonomics, r=pnkfelix 2024-10-16 19:18:30 +02:00
pin-macro
polymorphization Don't inline tainted MIR bodies 2024-08-08 20:53:25 -04:00
precondition-checks Warn on redundant --cfg directive when revisions are used 2024-10-19 12:40:12 +00:00
print_type_sizes Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
privacy Rename Receiver -> LegacyReceiver 2024-10-22 12:55:16 +00:00
proc-macro Tweak expand_incomplete_parse warning. 2024-10-28 14:12:45 +11:00
process Fix most ui tests on emscripten target 2024-10-15 14:25:55 +02:00
process-termination
ptr_ops
pub Bless test fallout 2024-08-03 07:57:31 -04:00
qualified
query-system
range Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
raw-ref-op Be far more strict about what we consider to be a read of never 2024-10-05 19:10:47 -04:00
reachable Be far more strict about what we consider to be a read of never 2024-10-05 19:10:47 -04:00
recursion Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
recursion_limit
regions be even more precise about "cast" vs "coercion" 2024-09-24 23:12:02 +02:00
repeat-expr Account for let foo = expr; to suggest const foo: Ty = expr; 2024-07-11 20:39:24 +00:00
repr tests: Bless rustc_abi::Abi::Aggregate => ::Memory 2024-10-30 01:41:31 -07:00
reserved
resolve Deny calls to non-#[const_trait] methods in MIR constck 2024-10-26 11:35:56 +08:00
return Fixing span manipulation and indentation of the suggestion introduced by #126187 2024-08-25 20:30:06 +08:00
rfcs Rollup merge of #132332 - nnethercote:use-token_descr-more, r=estebank 2024-10-30 06:40:36 +01:00
rmeta
runtime std: fix stdout-before-main 2024-10-12 13:01:36 +02:00
rust-2018 diagnostics: do not warn when a lifetime bound infers itself 2024-08-09 16:16:16 -07:00
rust-2021 Don't assume traits used as type are trait objs 2024-10-11 17:36:04 +02:00
rust-2024 Remove unadorned 2024-10-11 11:30:08 -04:00
rustc-env note value of RUST_MIN_STACK and explain unsetting 2024-05-19 20:09:03 -07:00
rustdoc Be more accurate about calculating display_col from a BytePos 2024-07-18 20:08:38 +00:00
sanitizer Warn on redundant --cfg directive when revisions are used 2024-10-19 12:40:12 +00:00
self Reject generic self types. 2024-10-30 10:48:08 +00:00
sepcomp
shadowed
shell-argfiles compiletest: add enable-by-default check-cfg 2024-05-04 11:30:38 +02:00
simd Update the minimum external LLVM to 18 2024-09-18 13:53:31 -07:00
single-use-lifetime
sized On function and method calls in patterns, link to the book 2024-10-06 01:44:59 +00:00
span Don't call const normalize in error reporting 2024-09-22 13:55:06 -04:00
specialization Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
stability-attribute Re-do recursive const stability checks 2024-10-25 20:31:40 +02:00
stable-mir-print Set up false edges in lower_match_tree 2024-07-29 09:50:07 +02:00
stack-protector
static Don't emit null pointer lint for raw ref of null deref 2024-10-06 22:36:51 -04:00
statics Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
stats Represent TraitBoundModifiers as distinct parts in HIR 2024-10-22 19:48:44 +00:00
std Fix most ui tests on emscripten target 2024-10-15 14:25:55 +02:00
stdlib-unit-tests Move various stdlib tests to library/std/tests 2024-04-28 16:10:12 -04:00
str Trim output of E0277 in some cases 2024-11-02 03:08:04 +00:00
structs Test more cases of WF-checking for fields 2024-08-05 17:56:50 -07:00
structs-enums move strict provenance lints to new feature gate, remove old feature gates 2024-10-21 15:22:17 +01:00
suggestions On long E0277 primary span label, move it to a help 2024-11-02 03:08:04 +00:00
svh
symbol-mangling-version
symbol-names Split part of adt_const_params into unsized_const_params 2024-07-17 11:01:29 +01:00
sync Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
target-feature Add a regression test for #131031 2024-10-30 22:34:45 +08:00
test-attrs Update name of Windows abort constant to match platform documentation 2024-07-15 22:21:41 +00:00
thir-print Lower AST node id only once 2024-10-28 14:12:17 +08:00
thread-local Auto merge of #124895 - obeis:static-mut-hidden-ref, r=compiler-errors 2024-09-20 17:25:34 +00:00
threads-sendsync format code in tests/ui/threads-sendsync 2024-08-24 05:32:52 +02:00
tool-attributes Fix diagnostic and add a test for it 2024-07-10 18:56:06 -04:00
track-diagnostics Always use a colon in //@ normalize-*: headers 2024-07-11 12:23:44 +10:00
trait-bounds Validate associated type bounds on ? 2024-10-31 00:09:52 +00:00
traits fix tests 2024-11-02 16:58:50 +00:00
transmutability On long E0277 primary span label, move it to a help 2024-11-02 03:08:04 +00:00
transmute Always use a colon in //@ normalize-*: headers 2024-07-11 12:23:44 +10:00
treat-err-as-bug Always use a colon in //@ normalize-*: headers 2024-07-11 12:23:44 +10:00
trivial-bounds Improve the impl and diag output of lint type_alias_bounds 2024-07-23 01:48:03 +02:00
try-block Add trait diff highlighting logic and use it in E0277 2024-11-02 03:08:04 +00:00
try-trait Trim output of E0277 in some cases 2024-11-02 03:08:04 +00:00
tuple Use ordinal number in argument error 2024-07-14 13:50:09 +09:00
type Rollup merge of #132246 - workingjubilee:campaign-on-irform, r=compiler-errors 2024-10-30 14:01:37 -07:00
type-alias Suggest full trait ref (with placeholders) on unresolved assoc tys 2024-07-23 01:26:25 +02:00
type-alias-enum-variants Suggest the struct variant pattern syntax on usage of unit variant pattern for a struct variant 2024-08-28 22:55:57 +09:00
type-alias-impl-trait Point at tail expression on rpit E0277 2024-11-02 03:08:04 +00:00
type-inference make invalid_type_param_default lint show up in cargo future-compat reports 2024-07-15 22:05:45 +02:00
typeck Add trait diff highlighting logic and use it in E0277 2024-11-02 03:08:04 +00:00
typeof Account for let foo = expr; to suggest const foo: Ty = expr; 2024-07-11 20:39:24 +00:00
ufcs Don't call const normalize in error reporting 2024-09-22 13:55:06 -04:00
unboxed-closures Revert suggestion verbosity change 2024-07-22 22:51:53 +00:00
underscore-imports Structured suggestion for extern crate foo when foo isn't resolved in import 2024-07-29 23:49:51 +00:00
underscore-lifetime
uniform-paths
uninhabited Add a machine-applicable suggestion to "unreachable pattern" 2024-09-13 21:01:29 +02:00
union Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
unknown-unstable-lints
unop Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck 2024-07-26 14:41:56 -04:00
unpretty Print unsafety of attribute in AST unpretty 2024-10-26 13:33:36 +02:00
unresolved Structured suggestion for extern crate foo when foo isn't resolved in import 2024-07-29 23:49:51 +00:00
unsafe A raw ref of a deref is always safe 2024-10-06 22:35:40 -04:00
unsized Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
unsized-locals Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
unused-crate-deps Spruce up the diagnostics of some early lints 2024-06-03 07:25:32 +02:00
unwind-abis Remove c_unwind from tests and fix tests 2024-06-19 13:54:55 +01:00
use Suppress import errors for traits that couldve applied in method lookup on error 2024-10-14 14:40:11 -04:00
variance Don't report bivariance error when nesting a struct with field errors into another struct 2024-10-15 14:58:54 -04:00
variants Accurate use rename suggestion span 2024-07-18 00:00:04 +00:00
version Fix test problems discovered by the revision check 2024-05-09 14:47:09 +10:00
warnings
wasm
wf Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
where-clauses On long E0277 primary span label, move it to a help 2024-11-02 03:08:04 +00:00
while
windows-subsystem rewrite test-harness to rmake 2024-07-02 11:37:59 -04:00
zero-sized
.gitattributes
alias-uninit-value.rs
allow-non-lint-warnings.rs Make run-make/allow-non-lint-warnings-cmdline into a ui test 2024-06-13 12:55:55 +02:00
anonymous-higher-ranked-lifetime.rs
anonymous-higher-ranked-lifetime.stderr Remove Partial/Ord from BoundRegion 2024-03-27 14:02:16 +00:00
artificial-block.rs
as-precedence.rs
assign-assign.rs
assign-imm-local-twice.rs Better span for "make binding mutable" suggestion 2024-07-04 02:02:21 +00:00
assign-imm-local-twice.stderr Better span for "make binding mutable" suggestion 2024-07-04 02:02:21 +00:00
assoc-lang-items.rs
assoc-lang-items.stderr consistency rename: language item -> lang item 2024-04-17 13:00:43 +02:00
assoc-oddities-3.rs
associated-path-shl.rs
associated-path-shl.stderr
atomic-from-mut-not-available.rs
atomic-from-mut-not-available.stderr
attempted-access-non-fatal.rs
attempted-access-non-fatal.stderr
attr-bad-crate-attr.rs
attr-bad-crate-attr.stderr
attr-shebang.rs
attr-start.rs
attr-usage-inline.rs
attr-usage-inline.stderr
attrs-resolution-errors.rs
attrs-resolution-errors.stderr
attrs-resolution.rs
augmented-assignments-feature-gate-cross.rs
augmented-assignments-rpass.rs
augmented-assignments.rs Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck 2024-07-26 14:41:56 -04:00
augmented-assignments.stderr Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck 2024-07-26 14:41:56 -04:00
auto-instantiate.rs
auto-ref-slice-plus-ref.rs
auto-ref-slice-plus-ref.stderr
autoderef-full-lval.rs
autoderef-full-lval.stderr Change E0369 diagnostic give note information for foreign items. 2024-06-25 10:00:30 +08:00
bare-fn-implements-fn-mut.rs
bare-static-string.rs
big-literals.rs
bind-by-move.rs
bitwise.rs
bogus-tag.rs
bogus-tag.stderr
borrow-by-val-method-receiver.rs
bounds-lifetime.rs
bounds-lifetime.stderr
break-diverging-value.rs
break-diverging-value.stderr
builtin-clone-unwind.rs
can-copy-pod.rs
cancel-clean-via-immediate-rvalue-ref.rs
cannot-mutate-captured-non-mut-var.rs
cannot-mutate-captured-non-mut-var.stderr More accurate mutability suggestion 2024-07-04 05:36:34 +00:00
capture1.rs
capture1.stderr
catch-unwind-bang.rs
cenum_impl_drop_cast.rs
cenum_impl_drop_cast.stderr
cfguard-run.rs
char.rs
class-cast-to-trait.rs
class-cast-to-trait.stderr
class-method-missing.rs
class-method-missing.stderr
cleanup-rvalue-for-scope.rs
cleanup-rvalue-scopes-cf.rs
cleanup-rvalue-scopes-cf.stderr
cleanup-rvalue-scopes.rs
cleanup-rvalue-temp-during-incomplete-alloc.rs
cleanup-shortcircuit.rs
close-over-big-then-small-data.rs
command-line-diagnostics.rs
command-line-diagnostics.stderr Better span for "make binding mutable" suggestion 2024-07-04 02:02:21 +00:00
complex.rs
conservative_impl_trait.rs
conservative_impl_trait.stderr
constructor-lifetime-args.rs
constructor-lifetime-args.stderr Revert suggestion verbosity change 2024-07-22 22:51:53 +00:00
copy-a-resource.rs
copy-a-resource.stderr
crate-leading-sep.rs
crate-method-reexport-grrrrrrr.rs
crate-name-attr-used.rs
crate-name-mismatch.rs
crate-name-mismatch.stderr
custom_attribute.rs
custom_attribute.stderr
custom-attribute-multisegment.rs
custom-attribute-multisegment.stderr
custom-test-frameworks-simple.rs
deduplicate-diagnostics.deduplicate.stderr
deduplicate-diagnostics.duplicate.stderr
deduplicate-diagnostics.rs
deep.rs
default-method-parsing.rs
default-method-simple.rs
defaults-well-formedness.rs
deprecation-in-force-unstable.rs
deref-non-pointer.rs
deref-non-pointer.stderr
deref-rc.rs
deref.rs
derive-uninhabited-enum-38885.rs
derive-uninhabited-enum-38885.stderr
destructure-trait-ref.rs
destructure-trait-ref.stderr
diverging-fallback-method-chain.rs
diverging-fallback-option.rs
diverging-fn-tail-35849.rs
diverging-fn-tail-35849.stderr
double-ref.rs
double-type-import.rs
double-type-import.stderr
dupe-first-attr.rs
duplicate_entry_error.rs Always use a colon in //@ normalize-*: headers 2024-07-11 12:23:44 +10:00
duplicate_entry_error.stderr Rename std::panic::PanicInfo to PanicHookInfo. 2024-06-11 15:47:00 +02:00
duplicate-label-E0381-issue-129274.rs Deduplicate Spans in Uninitialized Check 2024-08-22 09:36:14 -07:00
duplicate-label-E0381-issue-129274.stderr Deduplicate Spans in Uninitialized Check 2024-08-22 09:36:14 -07:00
early-ret-binop-add.rs
elide-errors-on-mismatched-tuple.rs
elide-errors-on-mismatched-tuple.stderr
elided-test.rs
elided-test.stderr
else-if.rs
empty-allocation-non-null.rs
empty-allocation-rvalue-non-null.rs
empty-type-parameter-list.rs
empty-type-parameter-list.stderr
error-festival.rs
error-festival.stderr Use wide pointers consistenly across the compiler 2024-10-04 14:06:48 +02:00
error-should-say-copy-not-pod.rs
error-should-say-copy-not-pod.stderr
exclusive-drop-and-copy.rs
exclusive-drop-and-copy.stderr
explain.rs
explain.stdout
explicit-i-suffix.rs
explore-issue-38412.rs
explore-issue-38412.stderr
ext-expand-inner-exprs.rs
ext-nonexistent.rs
ext-nonexistent.stderr
fact.rs
fail-simple.rs Tweak more warnings. 2024-10-28 14:20:28 +11:00
fail-simple.stderr Tweak more warnings. 2024-10-28 14:20:28 +11:00
filter-block-view-items.rs Unify all the always-false cfgs under the FALSE cfg 2024-04-07 01:16:45 +02:00
format-no-std.rs
fun-indirect-call.rs
future-incompatible-lint-group.rs
future-incompatible-lint-group.stderr
global-scope.rs
hello.rs
illegal-ufcs-drop.fixed
illegal-ufcs-drop.rs
illegal-ufcs-drop.stderr
impl-inherent-non-conflict.rs
impl-not-adjacent-to-type.rs
impl-privacy-xc-1.rs
impl-unused-rps-in-assoc-type.rs
impl-unused-rps-in-assoc-type.stderr
impl-unused-tps-inherent.rs
impl-unused-tps-inherent.stderr
impl-unused-tps.rs stabilize -Znext-solver=coherence 2024-10-15 13:11:00 +02:00
impl-unused-tps.stderr stabilize -Znext-solver=coherence 2024-10-15 13:11:00 +02:00
implicit-method-bind.rs
implicit-method-bind.stderr
inline-disallow-on-variant.rs
inline-disallow-on-variant.stderr
inlined-main.rs
inner-attrs-on-impl.rs Unify all the always-false cfgs under the FALSE cfg 2024-04-07 01:16:45 +02:00
inner-module.rs
inner-static-type-parameter.rs
inner-static-type-parameter.stderr
inner-static.rs
integral-indexing.rs
integral-indexing.stderr Trim output of E0277 in some cases 2024-11-02 03:08:04 +00:00
integral-variable-unification-error.rs
integral-variable-unification-error.stderr
invalid_crate_type_syntax.rs
invalid_crate_type_syntax.stderr
invalid_dispatch_from_dyn_impls.rs
invalid_dispatch_from_dyn_impls.stderr
issue-11881.rs
issue-13560.rs
issue-15924.rs
issue-16822.rs
issue-18502.rs
issue-24106.rs
issue-76387-llvm-miscompile.rs
issues-71798.rs
issues-71798.stderr
item-name-overload.rs
kinds-in-metadata.rs
kinds-of-primitive-impl.rs
kinds-of-primitive-impl.stderr
last-use-in-block.rs
last-use-in-cap-clause.rs
last-use-is-capture.rs
lazy-and-or.rs
lexical-scopes.rs
lexical-scopes.stderr
lexical-scoping.rs
link-section.rs Update tests for hidden references to mutable static 2024-09-13 14:10:56 +03:00
list.rs
log-err-phi.rs
log-knows-the-names-of-variants.rs
log-poly.rs
logging-only-prints-once.rs
loud_ui.rs
max-min-classes.rs
maximal_mir_to_hir_coverage.rs
maybe-bounds.rs
maybe-bounds.stderr Support ?Trait bounds in supertraits and dyn Trait under a feature gate 2024-07-25 20:53:33 +03:00
method-output-diff-issue-127263.rs show unit output when there is only output diff in diagnostics 2024-07-06 21:00:30 +08:00
method-output-diff-issue-127263.stderr show unit output when there is only output diff in diagnostics 2024-07-06 21:00:30 +08:00
minus-string.rs
minus-string.stderr Change E0369 diagnostic give note information for foreign items. 2024-06-25 10:00:30 +08:00
missing_debug_impls.rs
missing_debug_impls.stderr
mod-subitem-as-enum-variant.rs
mod-subitem-as-enum-variant.stderr
monomorphize-abi-alignment.rs
msvc-data-only.rs
msvc-opt-minsize.rs rewrite test-harness to rmake 2024-07-02 11:37:59 -04:00
multibyte.rs
multiline-comment.rs
mut-function-arguments.rs
mutual-recursion-group.rs
myriad-closures.rs
nested-block-comment.rs
nested-cfg-attrs.rs Unify all the always-false cfgs under the FALSE cfg 2024-04-07 01:16:45 +02:00
nested-cfg-attrs.stderr
nested-class.rs
nested-ty-params.rs
nested-ty-params.stderr
new-impl-syntax.rs
new-import-syntax.rs
new-style-constants.rs
new-unicode-escapes.rs
newlambdas.rs
newtype-polymorphic.rs
newtype.rs
no_crate_type.rs
no_crate_type.stderr
no_send-enum.rs
no_send-enum.stderr Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
no_send-rc.rs
no_send-rc.stderr
no_share-enum.rs
no_share-enum.stderr Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
no_share-struct.rs
no_share-struct.stderr
no-capture-arc.rs
no-capture-arc.stderr
no-core-1.rs
no-core-2.rs
no-link-unknown-crate.rs
no-link-unknown-crate.stderr
no-reuse-move-arc.rs
no-reuse-move-arc.stderr
no-send-res-ports.rs
no-send-res-ports.stderr Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
no-warn-on-field-replace-issue-34101.rs
noexporttypeexe.rs
noexporttypeexe.stderr
non-constant-expr-for-arr-len.rs
non-constant-expr-for-arr-len.stderr
non-copyable-void.rs Use the rustc_private libc less in tests 2024-04-15 08:54:11 -04:00
non-copyable-void.stderr Use the rustc_private libc less in tests 2024-04-15 08:54:11 -04:00
non-fmt-panic.fixed
non-fmt-panic.rs
non-fmt-panic.stderr
noncopyable-class.rs
noncopyable-class.stderr
nonscalar-cast.fixed
nonscalar-cast.rs
nonscalar-cast.stderr
not-clone-closure.rs
not-clone-closure.stderr Remove detail from label/note that is already available in other note 2024-10-29 16:26:57 +00:00
not-copy-closure.rs
not-copy-closure.stderr
not-enough-arguments.rs
not-enough-arguments.stderr Use ordinal number in argument error 2024-07-14 13:50:09 +09:00
nul-characters.rs
nullable-pointer-iotareduction.rs
nullable-pointer-size.rs
object-pointer-types.rs
object-pointer-types.stderr
objects-coerce-freeze-borrored.rs
occurs-check-2.rs
occurs-check-2.stderr
occurs-check-3.rs
occurs-check-3.stderr
occurs-check.rs
occurs-check.stderr
once-cant-call-twice-on-heap.rs
once-cant-call-twice-on-heap.stderr Better account for FnOnce in move errors 2024-04-11 16:41:42 +00:00
oom_unwind.rs
op-assign-builtins-by-ref.rs
opeq.rs
opt-in-copy.rs
opt-in-copy.stderr
optimization-remark.rs
out-pointer-aliasing.rs
output-slot-variants.rs
over-constrained-vregs.rs
panic_implementation-closures.rs
panic-while-printing.rs
paren-span.rs
paren-span.stderr
partialeq_help.rs
partialeq_help.stderr
path-lookahead.fixed
path-lookahead.rs
path-lookahead.stderr
path.rs
paths-containing-nul.rs
phantom-auto-trait.rs
phantom-auto-trait.stderr
point-to-type-err-cause-on-impl-trait-return-2.rs
point-to-type-err-cause-on-impl-trait-return-2.stderr
pptypedef.rs
pptypedef.stderr
primitive-binop-lhs-mut.rs
print-calling-conventions.rs Migrate run-make/print-calling-conventions to ui-test 2024-08-03 20:09:42 -04:00
print-calling-conventions.stdout add C-cmse-nonsecure-entry ABI 2024-09-21 13:04:14 +02:00
print-stdout-eprint-stderr.rs
project-cache-issue-31849.rs
ptr-coercion-rpass.rs
ptr-coercion.rs
ptr-coercion.stderr
query-visibility.rs
raw-str.rs
README.md
realloc-16687.rs
reassign-ref-mut.rs
reassign-ref-mut.stderr
reexport-test-harness-main.rs
removing-extern-crate.fixed
removing-extern-crate.rs
removing-extern-crate.stderr
resource-assign-is-not-copy.rs
resource-destruct.rs
rustc-error.rs
rustc-error.stderr
seq-args.rs
seq-args.stderr Revert suggestion verbosity change 2024-07-22 22:51:53 +00:00
shadow-bool.rs
shadowed-use-visibility.rs
short-error-format.rs
short-error-format.stderr On short error format, append primary span label to message 2024-08-06 04:08:10 +00:00
sized-borrowed-pointer.rs
sized-cycle-note.rs
sized-cycle-note.stderr
sized-owned-pointer.rs
sse2.rs sudo CI=green && Review changes <3 2024-06-25 18:06:22 +02:00
stable-addr-of.rs
std-uncopyable-atomics.rs
std-uncopyable-atomics.stderr
stdio-is-blocking.rs
string-box-error.rs
struct-ctor-mangling.rs
super-at-top-level.rs
super-at-top-level.stderr
super.rs
svh-add-nothing.rs
swap-1.rs
swap-overlapping.rs
switched-expectations.rs
switched-expectations.stderr
syntax-extension-minor.rs
tag-type-args.rs
tag-type-args.stderr
tag-variant-cast-non-nullary.fixed
tag-variant-cast-non-nullary.rs
tag-variant-cast-non-nullary.stderr
tail-call-arg-leak.rs
tail-cps.rs
tail-typeck.rs
tail-typeck.stderr
trailing-comma.rs
trait-method-number-parameters.rs
trait-method-number-parameters.stderr
transmute-equal-assoc-types.rs
transmute-non-immediate-to-immediate.rs
trivial_casts-rpass.rs
trivial_casts-rpass.stderr
try-from-int-error-partial-eq.rs
try-operator-hygiene.rs
try-operator.rs
tydesc-name.rs
type_length_limit.polonius.stderr
type_length_limit.rs Gate the type length limit check behind a nightly flag 2024-07-12 21:16:09 -04:00
type_length_limit.stderr Re-implement a type-size based limit 2024-07-02 15:48:48 -04:00
type-id-higher-rank-2.rs
type-namespace.rs
type-param-constraints.rs
type-param.rs
type-ptr.rs
type-use-i1-versus-i8.rs
typeid-intrinsic.rs
typestate-multi-decl.rs
unconstrained-none.rs
unconstrained-none.stderr
unconstrained-ref.rs
unconstrained-ref.stderr
underscore-ident-matcher.rs Tweak more warnings. 2024-10-28 14:20:28 +11:00
underscore-ident-matcher.stderr Tweak more warnings. 2024-10-28 14:20:28 +11:00
underscore-lifetimes.rs
underscore-method-after-integer.rs
unevaluated_fixed_size_array_len.rs
unevaluated_fixed_size_array_len.stderr
uninit-empty-types.rs
unit.rs
unknown-language-item.rs consistency rename: language item -> lang item 2024-04-17 13:00:43 +02:00
unknown-language-item.stderr consistency rename: language item -> lang item 2024-04-17 13:00:43 +02:00
unknown-llvm-arg.rs Always use a colon in //@ normalize-*: headers 2024-07-11 12:23:44 +10:00
unknown-llvm-arg.stderr
unnamed_argument_mode.rs
unreachable-code-1.rs
unreachable-code.rs
unsigned-literal-negation.rs
unsigned-literal-negation.stderr Tweak -1 as usize suggestion 2024-07-05 00:52:01 +00:00
unused-move-capture.rs
unused-move.rs
unwind-no-uwtable.rs
use-import-export.rs
use-keyword-2.rs
use-module-level-int-consts.rs
use-nested-groups.rs
used.rs
used.stderr Show used attribute's kind for user when find it isn't applied to a static variable. 2024-06-29 19:39:09 +08:00
using-target-feature-unstable.rs
usize-generic-argument-parent.rs
usize-generic-argument-parent.stderr
utf8_idents.rs
utf8-bom.rs Annotate input reference tests 2024-10-30 16:47:47 -07:00
wait-forked-but-failed-child.rs Handle a few more simple tests 2024-05-20 11:13:10 -04:00
walk-struct-literal-with.rs
walk-struct-literal-with.stderr
weak-new-uninhabited-issue-48493.rs
weird-exit-code.rs
weird-exprs.rs Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
write-fmt-errors.rs io::Write::write_fmt: panic if the formatter fails when the stream does not fail 2024-05-11 15:13:18 +02:00
writing-to-immutable-vec.rs
writing-to-immutable-vec.stderr
wrong-hashset-issue-42918.rs

README.md

UI Tests

This folder contains rustc's UI tests.

Test Directives (Headers)

Typically, a UI test will have some test directives / headers which are special comments that tell compiletest how to build and intepret a test.

As part of an on-going effort to rewrite compiletest (see https://github.com/rust-lang/compiler-team/issues/536), a major change proposal to change legacy compiletest-style headers // <directive> to ui_test-style headers //@ <directive> was accepted (see https://github.com/rust-lang/compiler-team/issues/512.

An example directive is ignore-test. In legacy compiletest style, the header would be written as

// ignore-test

but in ui_test style, the header would be written as

//@ ignore-test

compiletest is changed to accept only //@ directives for UI tests (currently), and will reject and report an error if it encounters any comments // <content> that may be parsed as an legacy compiletest-style test header. To fix this, you should migrate to the ui_test-style header //@ <content>.